Sierra Wireless DART 200 CDPD Modem manual

DART 200 CDPD Modem For CDPD Versions 1.0 and 1.1 User’s Guide Firmware Version 3.0.10 Revision 1.0 Part Number: 1197-00 January 1998[...]

DART 200 CDPD Modem User's Guide Sierra Wireless, Inc. ii ? NOTE: This guide provides the information necessary to program the Data Access Radio Transceiver (DART) 200 for operation on Cellular Digital Packet Data (CDPD) 1.0 or 1.1 networks. The factory default is for 1.1 mode. If you need to operate in CDPD 1.0 mode, refer to Selecting CDPD 1[...]

DART 200 CDPD Modem User’s Guide PN1197-00 Revision 1.0 iii Important Notice The Data Access Radio Transceiver (DART) can only be exported from the US, or re-exported to another country with the issuance of an export license from the US Government. Contact Sierra Wireless for more information. Because of the nature of wireless communications, tra[...]

DART 200 CDPD Modem User's Guide Sierra Wireless, Inc. iv[...]

DART 200 CDPD Modem User’s Guide PN1197-00 Revision 1.0 v Contents Figures xi Tables xii About This Guide xiii Who should read this guide xiii Skills required to use this guide xiii What is in this guide xiii Changes and additions to this guide xiv Related reading xv Compliances xvi FCC xvi Canadian xvi Safety information xvii Conventions used in[...]

DART 200 CDPD Modem User's Guide Sierra Wireless, Inc. vi 2 Installation and Setup 2- 1 Field installation 2- 1 Physical installation considerations 2- 1 Antenna considerations 2- 2 Troubleshooting 2- 4 Getting started 2- 5 Modem setup 2- 5 Basic modem personalization 2 - 6 Selecting CDPD 1.0 or 1.1 mode of operation 2- 8 Initial testing 2- 8 [...]

DART 200 CDPD Modem User’s Guide PN1197-00 Revision 1.0 vii DART TCP capabilities 5- 14 Friends Only mode operation 5- 14 TCP communication 5- 15 Setup options 5- 17 Sample TCP setups 5- 19 Remote TCP setup 5- 19 Host TCP setup 5- 21 SLIP 5- 22 Modem setup for SLIP 5- 22 SLIP IP Address overview 5- 24 SLIP operation 5- 26 SLIP initial testing 5- [...]

DART 200 CDPD Modem User's Guide Sierra Wireless, Inc. viii Auto-Registration/De-Registration at connection/disconnection 8- 8 Deregistration 8- 8 Data forwarding 8- 8 Manual transmit control 8- 9 Automatic transmit control 8- 9 Maximum packet size transmit control 8- 10 Escape transmit control 8- 11 Usage considerations (for TCP and UDP) 8- 1[...]

DART 200 CDPD Modem User’s Guide PN1197-00 Revision 1.0 ix A Limited Warranty and Service A-1 Limited warranty A-1 Service A-1 B Product Specifications B-1 Power requirements B-1 Mobile B-1 Stationary B-1 Peak B-1 Power cable B-1 Size B-1 Weight B-1 Operating environment B-1 RF power output B-1 Frequency range B-1 Data rates B-1 Antenna B-1 Anten[...]

DART 200 CDPD Modem User's Guide Sierra Wireless, Inc. x G Loa ding DART 200 Firmware G-1 Firmware download procedure G-1 H Problem Sheet H-1 Glossary Glossary-1 Acronyms Glossary -1 Terms Glossary-8 Index Index-1 Notes Notes-1[...]

DART 200 CDPD Modem User’s Guide PN1197-00 Revision 1.0 xi Figures Figure 1-1. DART 200 front view 1- 1 Figure 2-1. Installing DART 200 with mounting bracket 2- 2 Figure 2-2. S-Register bit positions 2- 9 Figure 2-3. Viewing the network S-Register (S57) 2- 13 Figure 2-4. Monitoring the CDPD channel 2- 13 Figure 2-5. Viewing registration status wi[...]

DART 200 CDPD Modem User’s Guide Sierra Wireless, Inc. xii Tables Table 1-1. Basic AT command set 1- 5 Table 1-2. Service Provider AT command set 1- 6 Table 2-1. S-Registers above 100 2- 14 Table 2-2. Registration failure troubleshooting 2- 17 Table 3-1. Key types 3- 2 Table 5-1. Remote UDP setup 5- 11 Table 5-2. Host UDP setup 5- 13 Table 5-3. R[...]

PN1197-00 Revision 1.0 About This Guide Who should read this guide This User’s Guide is designed to assist application software developers with setup, installation, testing, and design of applications for the Data Access Radio Transceiver (DART) 200. Skills required to use this guide The reader requires a basic working knowledge of Transmission C[...]

DART 200 CDPD Modem User’s Guide About This Guide Sierra Wireless, Inc. xiv Chapter 6, Device Attachment, describes the RS-232 interface to the DART, what a null modem is, and how to determine if one is required. Chapter 7, Vehicle Installation, discusses the items to consider when installing the DART 200 in a vehicle. Chapter 8, Application Prog[...]

DART 200 CDPD Modem User’s Guide About This Gui de PN1197-00 Revision 1.0 xv • Sample TCP setups , p. 5- 19 • Automatic SLIP restart bullet point, p. 5- 24 • Telnet operation, p. 5- 31 • Maximum packet size transmit control, p. 8- 9 • Escape transmit control , p. 8- 10 • Hardware flow control operation, p. 8- 13 • PAD operating mode[...]

DART 200 CDPD Modem User’s Guide About This Guide Sierra Wireless, Inc. xvi Compliances FCC This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits provide reasonable protection against harmful interference in residential installations. This equipment gene[...]

DART 200 CDPD Modem User’s Guide About This Gui de PN1197-00 Revision 1.0 xvii Safety information A caution in the margin, as shown at the left or in the body of the text, denotes a procedure or practice if not performed correctly could result in loss of data, or damage to equipment. A warning in the margin, as shown at the left or included withi[...]

DART 200 CDPD Modem User’s Guide About This Guide Sierra Wireless, Inc. xviii[...]

PN1197-00 Revision 1.0 1 Introduction Description The Data Access Radio Transceiver (DART ) 200, as shown in Figure 1 -1, is a wireless, multipurpose, programmable modem that provides reliable, cost effective mobile and fixed communications over the Cellular Digital Packet Data (CDPD ) network. It is a 3-watt, half-duplex device operating on a regu[...]

DART 200 CDPD Modem User’s Guide 1 Introduction Sierra Wireless, Inc. 1- 2 From a networking perspective, the modem has complete built-in Transmission Control Protocol (TCP ), User Datagram Protocol (UDP ), Serial Line Internet Protocol (SLIP ), and telnet protocols. Network communications can be achieved without the attached end-user device havi[...]

DART 200 CDPD Modem User’s Guide 1 Introduction PN1197-00 Revision 1.0 1- 3 Contacting your cellular carrier There are currently two cellular carriers in each market area: the A side carrier and the B side carrier. Each carrier can potentially install and enable CDPD on their cellular network. The CDPD network allows end -users to visit the regio[...]

DART 200 CDPD Modem User’s Guide 1 Introduction Sierra Wireless, Inc. 1- 4 3. Data packets are routed by the MDIS through the appropriate network to the Fixed End System (F-ES ), usually a host computer over a public or private data network. 4. If a response is required from the F-ES, the process is reversed. The role of the DART 200 in the CDPD [...]

DART 200 CDPD Modem User’s Guide 1 Introduction PN1197-00 Revision 1.0 1- 5 Do not enter an AT command that requires a parameter without using one, as the missing parameter defaults to zero. For example, if you entered ATN without a value in the range of 1 to 4, the command defaults to ATN0 . The N0 setting also forces J1, causing channel acq[...]

DART 200 CDPD Modem User’s Guide 1 Introduction Sierra Wireless, Inc. 1- 6 Table 1-1. Basic AT command set (cont.) *C Enable/Disable SLIP TCP Header Compression *E Enable Network Connection with PIN *G SLIP Multicast Address Selection *K TCP PAD Keep Alive *L Set Listen Port Number *M Set MAS IP Address for SLIP *P Ping Remote Host *R Automatic S[...]

PN1197-00 Revision 1.0 2 Installat ion and Setup Field installation Physical installation considerations The Data Access Radio Transceiver (DART ) 200 is designed for both stationary and mobile applications. The guidelines for modem installation are: • Environment - The standalone DART 200 is ruggedly constructed. However, it is not waterproof, s[...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 2 Figure 2-1. Installing DART 200 with mounting bracket[...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 3 Antenna considerations The DART 200 uses standard mobile cellular radio signal s and any standard cellular antenna of good quality with a maximum gain of 3 dB (FCC requirement) will function properly subject to the following guidelines: • Location Locate the a[...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 4 Troubleshooting The DART 200 is thoroughly inspected during manufacturing. There are no end-user access items within the case of the modem. If problems occur, check the following: • Power supply If the Power On/Registration Indicator is not flashing or glowing[...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 5 Getting started Before opening the DART 200 box, but preferably before it arrives, check that the following equipment is available: • A 12.0 V DC regulated power source with 2.5 amp capability. You can either provide your own, or order the power source as an o[...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 6 2. To proceed, your PC must have the ASCII terminal emulation program installed and active, and be attached to the CDPD modem by the PC communications cable. To verify the setup, enter AT and press ENTER : an OK response should return. To verify that the connect[...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 7 • Entering the IP Address with an AT^An.n.n.n. It defaults to being put into the first entry in the IP Address table (NEI 0). For more information, refer to the AT^A command in Appendix F, DART AT Command Set • Verify that the IP Address was entered correctl[...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 8 Selecting CDPD 1.0 or 1.1 mode of operation DART firmware Version 3.0.1 and above can operate in either CDPD 1.0 or 1.1 mode; prior firmware versions support only CDPD 1.0. The firmware version can be determined by the ATI1 command. The default is to operate in [...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 9 2. If the NEI information is correct, use AT&V to verify the side setting ( Nn ) and channel restrictions ( Jn ), for example: ar&v DART 200 Communication Port Settings: Auto Baud: 9600 Baud, 8 Data Bits, No Parity, 1 Stop Bit(s) E1 V1 Q0 F1 X1 &C1[...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 10 The values associated with the bit positions are listed below. Bit Position Value 0 1 1 2 2 4 3 8 4 16 5 32 6 64 7 128 For example, if register bits 0,3, and 5 are on, the register value would be 1+8+32=41. Channel acquisition For the DART 200 to acquire a chan[...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 11 3. If the channel is not available for CDPD use, the DART continues searching, dropping the allowable signal level by 10 dB after each pass through all the cellular channels on the side it is searching, until it finds a usable channel or reaches the weakest all[...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 12 3. If the CDPD channel’s BLER is acceptable, the DART acquires the power product, current CDPD operating parameters, and adjacent channel lists from the MDBS. If the channel BLER is not satisfactory, the modem goes to the next best CDPD channel in the list an[...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 13 • By viewing the Network Status Register (S-Register 57) with the AT&V command or the ATS57? command. This is the recommended method, because viewing S-Register 57 shows other useful information, as shown in Figure 2-3 Figure 2-3. Viewing the network S-Re[...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 14 If the problem persists after checking the above possibilities, try power cycling the modem. If that fails to help, contact your modem supplier for assistance. To determine if you have a channel restriction problem check the setting of the J parameter with an [...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 15 If the modem stabilizes for short periods before restarting the search, the AT&V + output shown in Table 2-1 can be useful. S-Register 102 contains the RSSI value in dBm. The less negative the number the stronger the signal , for example, for CDPD 1.1: • [...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 16 The bit definitions in Figure 2-5 are as follows: • Channel acquired indicator (bit 7) • Automatic registration switch (bit 5) • Registration indicator (bit 0) An odd value in S-Register 57 indicates a registered modem. If the DART has problems registerin[...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 17 5 NEI successfully registered The descriptions of S-Registers 56 and 126 usually give a good idea of what the problem is. The following section describes some of the most common conditions leading to registration failures. Troubleshooting registration failure T[...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 18 Table 2-2. Registration failure troubleshooting (cont.) Condition Result Code Solution Invalid IP Address 3 or 1 (on some systems) 1. If the side setting is OK, verify that the modem’s IP Address is correct, by using the ATS? command to view the IP Address. [...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 19 Table 2-2. Registration failure troubleshooting (cont.) Condition Result Code Solution Authentication (credentials) problem (cont.) credentials to be reset. Trying to register a modem after doing this will cause a credentials error because the reset values in t[...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 20 Table 2-2. Registration failure troubleshooting (cont.) Condition Result Code Solution Power supply problem Not applicable The DART operates on a voltage of 11 to 16 VDC with a current rating of 2.5 amps. Voltage level fluctuations caused by using an unregulate[...]

DART 200 CDPD Modem User’s Guide 2 Installation and Setup PN1197-00 Revision 1.0 2- 21 Basic communications The final step in the initial setup process is to confirm that the DART 200 can communicate with the network by performing a ping . The DART 200 sends a fixed length character string to another device that is registered on the network, and [...]

DART 200 CDPD Modem User’s Guide 2 I nstallation and Setup Sierra Wireless, Inc. 2- 22 If increasing the time-out period does not correct the time-out failures, the problem could be that the other device is not registered, or that the path to it is not operational. Check with those responsible for the other device to see that it is operational an[...]

PN1197-00 Revision 1.0 3 CDPD Security Features Airlink security The Cellular Digital Packet Data (CDPD ) network is a public wireless data communications service vulnerable to casual eavesdropping. To minimize this possibility, a data encryption mechanism is provided for all non-broadcast communications between the Mobile Data Intermediate System [...]

DART 200 CDPD Modem User’s Guide 3 CPDP Security Features Sierra Wireless, Inc. 3- 2 Modem security management Two types of modem security are provided for the DART 200 : • Personal Identification Number (PIN ) - Protects against unauthorized use of the CDPD network. A PIN can be required before the modem can gain access to the CDPD network •[...]

DART 200 CDPD Modem User’s Guide 3 CDPD Security Features PN1197-00 Revision 1.0 01/23/98 3- 3 Table 3-1. Key types (cont.) SPK Prevents unauthorized changes to the modems operating parameters. These include selected S-Registers as well as modem IP Addresses. In addition, the use of selected AT commands, including several of the security manageme[...]

DART 200 CDPD Modem User’s Guide 3 CPDP Security Features Sierra Wireless, Inc. 3- 4[...]

PN1197-00 Revision 1.0 4 Br oadcast and Multicast Operation Overview Broadcast and multicast are Cellular Digital Packet Data (CDPD ) functions that support sending the same data to a large group of IP Address es with a single transmission to the CDPD network. This capability is implemented through Mobile Data Intermediate System (MDIS) software. T[...]

DART 200 CDPD Modem User’s Guide 4 Broadcast and Multicast Operation Sierra Wireless, Inc. 4- 2 Broadcast The Broadcast function is used on a geographic coverage basis. To support this function the MDIS is set up with a Broadcast Network Entity Identifier (NEI) that includes a list of the Mobile Data Base Stations (MDBS s) in the desired broadcas[...]

DART 200 CDPD Modem User’s Guide 4 B roadcast and Multicast Operation PN1197-00 Revision 1.0 4- 3 Multicast setup For multicast set up the DART 200 with a multicast IP Address and an associated Group Multicast Identifier (GMID) , in addition to the normal IP Address, as follows: 1. Enter the Multicast NEI (like any other IP Address) by using the [...]

DART 200 CDPD Modem User’s Guide 4 Broadcast and Multicast Operation Sierra Wireless, Inc. 4- 4 Some software stacks, used when the DART 200 operates in Serial Line Internet Protocol (SLIP) mode, only receive broadcast messages (including multicast) on a specific IP destination address, specifically the point-to-point NEI. To provide for this lim[...]

PN1197-00 Revision 1.0 5 DART Supported Protocols U DP User Datagram Protocol (UDP) is the most basic transmission protocol provided by the Data Access Radio Transceiver (DART) 200 . It is a thin protocol, adding only a port specification to the underlying Internet Protocol (IP). It has the same features as IP, that is a best effort, connectionless[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 2 While UDP offers the possibility of using fewer data packets and less total bytes to implement an application than TCP, adding the features already described can consume some of these savings, and requires a major programming effort. The DART 200 provides basic[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 3 Even though a successful ATDP command receives a CONNECT response a connection was not established. The ATDP merely passes the IP Address and port number of the destination system to the DART 200, where they are stored for use in constructing UDP headers for t[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 4 Because UDP is a connectionless protocol, a single M-ES can communicate with multiple M-ESs at the same time as long as timing considerations are closely followed. When a DART 200 receives a datagram from another M-ES: 1. The DART 200 removes the source address[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 5 To set up the options, first, review Chapter 8, Application Programming, and the command descriptions in Appendix F, DART AT Command Set before setting the following parameters, then proceed to step 1. • Command mode echo (En) • Data set ready (DSR) operat[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 6 • Receive locking capability to allow the DART 200 to function as a UDP server by holding off incoming messages until the preceding message is answered • Eliminates the need for the M-ES and Host modems to use a common port number. The server uses the sourc[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 7 • Receive locking • Backwards compatibility The details of these options follow. • Friends Only Mode - Restricts communication with the modem (for security reasons) to a predefined group of addresses (friends) This feature is controlled by S-Register 82 [...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 8 This feature is controlled by bit 1 of S -Register 82. The default is backward compatibility enabled (bit 1 = 1). When this bit is on the UDP server does not generate a random port number as the source port when the MAS issues an ATDP , but instead uses the por[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 9 • The modem’s server listening port is disabled for the duration of any active client session. Incoming datagrams are received on the active session listening port and only from the destination address specified on the dial command until an escape is perfo[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 10 • The modem enters the online mode • The source address is saved • The datagram is passed to the MAS In the answering modes already discussed: 1. The modem accepts incoming UDP datagrams. 2. The modem strips off the UDP header, and passes the packets on [...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 11 Sample UDP server setups These settings give a general sense of the AT commands required to set up a DART 200 for a UDP application. All relevant AT commands are listed, including the defaults. All devices function differently, so the setups that follow are g[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 12 Table 5-1. Remote UDP setup (cont.) AT Command Req Opt Def Description ATE0 O No command mode character echo ATV0 O Use terse result codes ATQ0 D Use default - Result codes are sent to the RTU ATF1 D Use default - Do not echo transmitted data to the RTU ATX1 D[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 13 Table 5-2. Host UDP setup AT Command Req Opt Def Description AT^Annn.nnn.nnn.nnn R Input IP Address (if not already done) ATN[1,2] R Side Preference - (get from carrier) ATJ0 D Use default - No channel access restrictions ATR4 R Auto Registration at Power [...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 14 TCP Transmission Control Protocol (TCP) is an advanced transmission protocol that adds substantial functionality to the underlying Internet Protocol it is built on. Because of this structure it is often referred to as TCP/IP. The advantage of TCP is reliabilit[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 15 This bit is significant only when the TCP connection is established passively (server mode ). When the connection is established actively (by an ATDT command), incoming packets are accepted from the destination address specified in the dial command regardless[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 16 5. The data packet is directed by the network routers to the appropriate port on the designated server. If the server or the data path becomes inactive between the time the connection is established and the time data transmission starts, the MAS is informed by[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 17 4. Once the data block is received it is ready for processing. Any necessary error-checking, resequencing, and so on, is handled by the TCP software and is not the responsibility of the MAS. The handling of network connectivity issues (such as loss of carrier[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 18 Many of the following profile parameters apply and need to be evaluated before proceeding to step 1. Some need to be set to provide the proper application operating environment, and others can be allowed to default. Review application programming in Chapter 8,[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 19 4. In any TCP application where the remote system only operates in server mode , consider the use of the TCP keep-alive option ( *K ). It is possible for the central client system to fail after establishing a session with a remote server. If the client fails [...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 20 Table 5-3. Remote TCP setup AT Command Req Opt Def Description AT^Annn.nnn.nnn.nn n R Input IP Address (if not already done) ATN[1,2] R Side Preference (get from carrier) ATJ0 D Use default - No channel access restrictions ATR4 R Auto Registration at Power [...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 21 Host TCP setup The host (client) modem is set up to support polling of remote devices by the host computer. The host uses flow control and the data being sent is binary, not character data. The polling function does not require the TCP server, but requires fl[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 22 Table 5-4. Host TCP setup (cont.) AT Command Req Opt Def Description AT*K0 D Use default - Keep-alives not needed at central site AT*R0 D Use default - Does not apply to TCP AT*T0 D Use default - Does not apply to TCP SLIP Serial Line Interface Protocol (SLIP)[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 23 • TCP/IP keep-alives (*Kn) • TCP PAD operating mode (On) • Telnet keep-alives (*Tn) • Automatic transmit control (Tn) The following profile parameters are operational in command or SLIP modes and need to be evaluated to determine their proper settin[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 24 Automatic SLIP restart specifies that the DART 200 always enters SLIP mode following power on or modem reset. It lets Winsock applications rely on the modem always being in SLIP mode, particularly following a power off/on cycle. When this feature is active the[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 25 A simplified block diagram of a terminal connection to a CDPD network using the SLIP interface is shown in Figure 5-1. Figure 5-1 Terminal connection to a CDPD network using SLIP #1 #2 #3 MAS (Terminal) M-ES MC-DART CDPD Network AirLink RS-232 Link #1 - Local[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 26 3. The DART (registered NEI ) IP Address is known to the network and is obtained from your service provider. This IP Address is set using the following service provider command: AT^An.n.n.n/x, where: x defines which slot (0 -9) in the address table to use. If [...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 27 SLIP initial testing After the IP Addresses are set, the SLIP setup is completed, and the modem has been put into SLIP mode, determine if your setup is correct and that you have network connectivity by pinging the network. The ping command format can vary sli[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 28 Telnet The telnet capability within TCP/IP is designed to provide support for ASCII terminals to communicate with text-oriented server applications on host systems. As implemented in the DART 200 , the telnet support mode provides the capability for the modem [...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 29 • Data Forwarding Operation • Manual Transmit Control ( ATMn ) - Controls the use of the characters (specified in S-Registers 51 and 52 ) for data forwarding while in online mode . The default for this parameter is M0 (disabled). The default for S-Regis[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 30 • Terminal Emulation Negotiation - S-Register 78 determines the terminal emulation type to offer first when negotiating with the telnet host system. The current list is: • 0 = DEC-VT100 (default) • 1 = DEC-VT52 • 2 = UNKNOWN Default is for most specifi[...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols PN1197-00 Revision 1.0 5- 31 New for this version The telnet binary mode ( Bn ) was removed from the AT command set, because a telnet remote login session should not be started with this function enabled. Binary mode considerations Binary operation is available for telnet but only as a [...]

DART 200 CDPD Modem User’s Guide 5 DART Supported Protocols Sierra Wireless, Inc. 5- 32[...]

PN1197-00 Revision 1.0 6 Device Attachment RS-232 connection The DART 200 has an RS-232 DB9 interface. If the remote device has a similar interface, then any standard PC communications cable functions as a connector between the two. Otherwise, refer to Data and control interface, p. 8- 14 , for a discussion of the RS-232 leads and the minimum numbe[...]

DART 200 CDPD Modem User’s Guide 6 Device Attachment Sierra Wireless, Inc. 6- 2 Figure 6-2. Stand-alone RS-232 The problem with this occurs when modems are inserted between the DTE and a remote device with a DCE interface. The modem expects to communicate with a DTE interface. Since this is not the case at the remote end, where the DCE modem is t[...]

DART 200 CDPD Modem User’s Guide 6 Device Attachment PN1197-00 Revision 1.0 6- 3 To identify this problem connect a PC directly to the device and establish communication. If communication is established, the device uses a DCE interface and requires a null modem to communicate with the DART 200. Null modem adapters are available as stand-alones; t[...]

DART 200 CDPD Modem User’s Guide 6 Device Attachment Sierra Wireless, Inc. 6- 4[...]

PN1197-00 Revision 1.0 7 Vehicle Installation Considerations Electrical transients When a Data Access Radio Transceiver (DART) 200 is installed in a vehicle it is usually powered from the vehicle’s electrical system. Transients or temporary outages that can occur during starts or other vehicle operations, can cause the DART 200 to reset the power[...]

DART 200 CDPD Modem User’s Guide 7 Vehicle Installation Considerations Sierra Wireless, Inc. 7- 2 The application program in the MAS has no way of knowing before attempting a send or receive operation if the modem is still in online mode . The application can be designed to assume that the modem is always online, or to always check that it is onl[...]

DART 200 CDPD Modem User’s Guide 7 Vehicle Installation Considerations PN1197-00 Revision 1.0 7- 3 In this situation, separate the antennas as far as possible and then run a field test when the two-way radio is also being used. If the DART 200 works satisfactorily you do not have a problem, but if it does not filtering is required. A bandpass fil[...]

DART 200 CDPD Modem User’s Guide 7 Vehicle Installation Considerations Sierra Wireless, Inc. 7- 4[...]

PN1197-00 Revision 1.0 8 Application Programming The Data Access Radio Transceiver (DART ) 200 offers built-in Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Serial Line Internet Protocol (SLIP), and telnet support, but most end -user application programming that interacts with the modem uses TCP, UDP, or SLIP. Telnet is used pr[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 2 Device drivers The DART 200 requires no special device drivers. Serial communications port support provided by the PC Operating System is all that is needed. For modem setup any ASCII terminal emulator , such as Terminal, Hyperterminal, Procomm, Kermit, and so o[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 3 4. For a modem functioning as a server, (answering calls or being polled) activate the appropriate server, TCP (with AT*A1 ) or UDP (with AT*A2 ). The connection can be established automatically by having auto answer active (S-Register 0 =1), or manually by is[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 4 Error recovery Good application design includes provisions for handling errors. Insert code to perform the error-handling function after every operation where an error might occur, such as after every AT command, where the most likely failure is modem power loss[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 5 With three variables and only two signal lines, decide which two of the three items are most crucial to the application. Usually, RF in range and registration state are tracked. If both of these statuses are present, then a Dial command ( ATD ) can be issued. [...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 6 70 Network is unreachable 71 Network dropped connection or reset 72 Software caused connection abort 73 Connection reset by peer 75 Socket is already connected 76 Socket is not connec ted 78 Connection timed out 79 Connection refused (for DART to DART the server[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 7 • Manual registration • Automatic registration at power-on • Automatic registration whenever the modem is not registered • Automatic registration when connection originates These options are described in detail after Registration Timer . Registration t[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 8 Auto-Registration when not registered This function is the same as Auto-Registration at power-on, except that in addition to executing ATR4 command, the timer value is set to zero. This causes the modem to auto register at power-on, and also when it loses regis[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 9 Manual transmit control This feature ( ATMn) controls the recognition of data forwarding characters in the data stream by the packet assembler when in online mode . If enabled, the DART 200 recognizes the receipt of either of two data forwarding characters fr[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 10 Maximum packet size transmit control This feature is not under end-user control. It causes the data buffer to be transmitted if the maximum packet size is reached and the conditions covered by either, or both, of the above features are not met, for example, if [...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 11 Escape transmit control A default feature of the modem causing any data remaining in the packet buffer to be transmitted before the modem returns to command mode . The escape can be performed by the three-character escape sequence, or by transitioning DTR wit[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 12 2. To use the ATA method, the MAS must have a device. Read command is pending on the COM port and issues an ATA command in response to the incoming Ring. OR S -Register 0 = 1 enables the DART 200 to remain permanently in auto answer mode; making call answering [...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 13 Flow control and the new end-user Flow control often causes problems when applications are first online. Flow control is not operational when the modem is in command mode and not interacting with the CDPD network. Since an end-user’s initial experience with[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 14 Hardware flow control operation The DART 200 communicates with the MAS using the CTS lead (modem controlled) when receiving data, and sensing the RTS lead (MAS controlled) when sending data. When the modem receives data from the MAS it holds the CTS line in the[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 15 Table 8-1. Telemetry options for PAD Mode Command Description O0 Select PAD Mode • F0 Local echo in online mode • M1 Enable manual data forwarding • T0 Disable automatic data forwarding O1 Select Telnet Mode • F1 Remote echo in online mode • M0[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 16 2. Is the modem still registered? 3. Does the modem still have an RF signal available? The DCD and the DSR lead can be set up with AT commands to cause those signals to follow certain modem status items, including: • DCD Operation • &C0 DCD is always ac[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 17 Flow control considerations Software Flow Control cannot be used. Instead, Hardware Flow Control ( Q2 ) (default), or no flow control ( Q0 ) must be used because in a binary data stream any byte can inadvertently have the same bit configuration as the XON o[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 18 Bypassing character parity relies on the fact that the DART passes all 8 -bits if operating in 8N1 format, and does not autobaud or check character formats in online mode . However, it requires that the MAS be able to dynamically change the character format use[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 19 Shutting down a CDPD session in an orderly fashion after an abnormal termination at the F-ES side of the session, eliminates the possibility of the DART 200 having a half open TCP/IP connection, which usually requires a power cycle to clear. This can be a ser[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 20 Escape sequence considerations The escape sequence is one of two ways the MAS forces the DART 200 to leave online or SLIP mode and return to command mode . The other is to drop the DTR line, as described in Escaping through the control interface, p. 8- 16 . Lea[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 21 • Verbose Mode ( Vn ) - Controls whether the DART 200’s command responses are textual or numeric. The default is enabled ( V1 ). This is recommended for manual interaction with the DART 200, such as initial setup. The verbose response consists of a text s[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 22 Channel acquisition restrictions This feature of the modem limits the RF channels available for modem use. It is controlled by the ATJn command; one of the modem’s profile parameters. If activated, this feature limits the modem to using channels where a chan[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 23 If the DART 200 is attached to a device that operates at a different speed or data format, an appropriate AT&L command, followed by an AT&W (to save the change) must be issued. Executing the AT&L command disables autobaud and fixes (locks) the DAR[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 24 1. If your application involves transmitting relatively large data files, test the data transfer using a variety of block sizes. Begin with the large blocks preferred by your customer. Get some throughput timings and develop an average. If operating in a sniff-[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming PN1197-00 Revision 1.0 8 - 25 Entries with port numbers can be used as both ping targets and in the friends’ list. The port numbers are ignored if not required by the command or function. Messages and response codes The DART 200 provides information to the MAS concerning its operation b[...]

DART 200 CDPD Modem User’s Guide 8 Application Programming Sierra Wireless, Inc. 8- 26[...]

PN1197-00 Revision 1.0 A Limited Warranty and Service Limited warranty Sierra Wireless, Inc. (Sierra Wireless) warrants your DART CDPD Modem model 200 against all defects in materials and workmanship for a period of twelve (12) months from the date of shipment, subject to the following terms and conditions: The DART 200 Cellular Packet Data Modem ([...]

DART 200 CDPD Modem User’s Guide A Limited Warranty and Service Sierra Wireless, Inc. A- 28 If you are having trouble with your modem, or to obtain warranty service or out-of warranty repair, please call Sierra Wireless Support (604.231.1100) between 8:00 am and 5:00 PM Pacific Time. If it is necessary to return the modem, you will be given an RM[...]

PN1197-00 Revision 1.0 B Product Specifications Power requirements Mobile 11.0 to 16.0 VDC; 13.8 VDC nominal operating voltage, +/- 1.0 V maximum ripple; maximum current 2.5 A; 3.0 A line fusing required. Stationary 120 VAC operation with optional UL/CSA approved AC power adapter Peak Transmit: 2.5A; Receive: 300 ma Power cable Six (6) ft. 20 AWG; [...]

DART 200 CDPD Modem User’s Guide B Product Specifications Sierra Wireless, Inc. B- 2 3 watts (maximum) Frequency range Transmit: 824 to 849 MHz, Receive: 869 to 894 MHz Data rates Airlink: 19,200 bits per second, half duplex Serial interface: 300 to 19,200 bps auto select Antenna Standard cellular antenna of good quality with a maximum gain of 3 [...]

PN1197-00 Revision 1.0 C Charts and Diagrams Figure C-1 shows the hole pattern for the mounting bracket. Use a 4-40 machine screw, a 4-25 tapping screw, or a 0.125 DIA rivet to fasten the bracket. A flat washer is not required because the bracket is made of hardened steel, but a lock washer is required. Figure C-1. Mounting bracket template Figure [...]

DART 200 CDPD Modem User’s Guide C Charts and Diagrams Sierra Wireless, Inc. C-2 The pin functions for pins labeled in Figure C-2 are listed in Table C -1 Table C-1. Pin functions Pin Number Name Function Direction 1 DCD Carrier Detect To DTE 2 RXD Receive Data To DTE 3 TXD Transmit Data From DTE 4 DTR Data Terminal Ready From DTE 5 GND Signal Gr[...]

PN1197-00 Revision 1.0 D SLIP Setup Examples Trumpet The Trumpet Winsock is a shareware Windows only package that is currently in widespread use. Support for it is available primarily through Internet E-mail and the USENET newsgroup at alt.winsock. Look for a file called winsock.zip and a set of basic applications (ftp, telnet, ping, etc.) in a fil[...]

DART 200 CDPD Modem User’s Guide D SLIP Setup Examples Sierra Wireless, Inc. D - 2 To set up Trumpet: 1. Start Trumpet from Windows (Icon, or File/Run/TCPMAN). 2. On the Trumpet Winsock Screen, click on File then click on Setup. The Trumpet setup screen appears: 3. Set IP Address to DART NEI (IP Address). 4. Set Default Gateway to DART SLIP addre[...]

DART 200 CDPD Modem User’s Guide D SLIP Setup Examples PN1197-00 Revision 1.0 D - 3 15. Put the DART into SLIP mode by entering an AT*S command. The ASCII terminal emulation program being used must be configured for the same speed as that set for the Trumpet baud rate or SLIP communication is not possible. (Recommended for first time users.) OR C[...]

DART 200 CDPD Modem User’s Guide D SLIP Setup Examples Sierra Wireless, Inc. D - 4[...]

PN1197-00 Revision 1.0 E S-Registers The configuration of the DART is accessible to the Mobile Application Subsystem (MAS) as a set of parameters known as Status (S)-Registers. Some registers can be updated directly with AT commands, others are read-only. The set of registers and modem options (also set with AT commands) is known as the configurati[...]

DART 200 CDPD Modem User’s Guide E S-Registers Sierra Wireless, Inc. E - 2 Registers 0 through 99 formats The AT&V command displays these registers as a group. Each S -Register is displayed as a three-position numeric field. The ATSn? command displays these registers individually, as three-digit numeric fields except for S-Register 53. S-Regi[...]

DART 200 CDPD Modem User’s Guide E S-Registers PN1197-00 Revision 1.0 E - 3 Register definitions Figure E-1 shows that in bitmapped registers bit 7 is the high order (leftmost) bit and bit 0 is the low order (rightmost) bit. Figure E-1. S-Register bit positions S-Register Bit Position 7 6 5 4 3 2 1 0 Table E-2 summarizes the S-Register set, valid[...]

DART 200 CDPD Modem User’s Guide E S-Registers Sierra Wireless, Inc. E - 4 Table E-2. Register summary (cont.) Register Value Default Description S14 (RO) (cont.) 2 • Quiet mode; see Q command (default is Q0 ) = 0 3 • Verbose mode; see V command (default is V1 ) = 8 4 • Unused 5, 6, 7 • Escape mode; see &E command (default is &E2 [...]

DART 200 CDPD Modem User’s Guide E S-Registers PN1197-00 Revision 1.0 E - 5 Table E-2. Register summary (cont.) Register Value Default Description S23 (RO) (cont.) 3,4,5 • Value Baud: 0 = 1200 1 = 2400 2 = 4800 3 = 9600 (default) = 24 4 = 19200 7 = 300 6 • Stop Bits: 0=2 1=1 (default) = 64 7 • Data Bits: 1 = 7 0 = 8 (default) = 0 S24 (SM) 0[...]

DART 200 CDPD Modem User’s Guide E S-Registers Sierra Wireless, Inc. E - 6 Table E-2. Register summary (cont.) Register Value Default Description S45 (SM) 0..255 50 Cell Change RSSI time period XID override (V1.0) (in 0.1sec) RSSI Average time period XID override (V1.1) (in 0.1 sec) S46 (SM) 0..255 5 Cell Change BLER Threshold XID override =100/S[...]

DART 200 CDPD Modem User’s Guide E S-Registers PN1197-00 Revision 1.0 E - 7 Table E-2. Register summary (cont.) Register Value Default Description S57 (RO) bitmapped 0 Network status 0,1 • Registration state: 0 = unregistered 1 = registered 2,3 • Connection state: 0 = no connection 4 = connection 8 = incoming connection pending 12 = outgoing [...]

DART 200 CDPD Modem User’s Guide E S-Registers Sierra Wireless, Inc. E - 8 Table E-2. Register summary (cont.) Register Value Default Description S60 (SM) (cont.) 6 64 Transmit frame logging 7 128 Use power product override in SReg36 S61 (SM) bitmapped 143 Value Function 0 1 Reserved 1 2 Reserved 2 4 Reserved 3 8 Enable SLIP header compression 4 [...]

DART 200 CDPD Modem User’s Guide E S-Registers PN1197-00 Revision 1.0 E - 9 Table E-2. Register summary (cont.) Register Value Default Description S64 (SM) bitmapped 22 Value Function 0 1 Enable Rcv IP broadcast 1 2 Enable TCP/IP header compression 2 4 Reserved 3 8 Reserved 4 16 Enable SER monitoring in RRM 5 32 Reserved 6 64 Reserved 7 128 Use V[...]

DART 200 CDPD Modem User’s Guide E S-Registers Sierra Wireless, Inc. E - 10 Table E-2. Register summary (cont.) Register Value Default Description S81 (SM) bitmapped 0 Value Function 0 1 TCP Server specified via *A1 1 2 UDP Server specified via *A2 2-3 ... Reserved 4 16 TCP Server active 5 32 UDP Server active 6-7 ... Reserved S82 (SM) Bitmapped [...]

DART 200 CDPD Modem User’s Guide E S-Registers PN1197-00 Revision 1.0 E - 11 Table E-2. Register summary (cont.) Register Value Default Description S95 (SM) bitmapped 11 Value Function 0 1 Select CDPD version 1.1 MDLP/SNDCP 1 2 Select CDPD version 1.1 RRM 2 4 Reserved 3 8 For SLIP replace multicast NEI with point-to-point NEI 4 16 Reserved 5 32 R[...]

DART 200 CDPD Modem User’s Guide E S-Registers Sierra Wireless, Inc. E - 12 Table E-2. Register summary (cont.) Register Value Default Description S111 (RO) 0..FF (hex) Current Area/Cell Color code (0xnn format) S112 (RO) 0..100 Current Tx BLER in % S113 (RO) 0..255 Current SIE (Symbols in Error) S114 (RO) 0 CDPD V1.1 - Current SPI 0..255, 1..255[...]

DART 200 CDPD Modem User’s Guide E S-Registers PN1197-00 Revision 1.0 E - 13 Table E-2. Register summary (cont.) Register Value Default Description S125 (RO) 0..FFFF MES configuration timer value (sec) (0xnnnn) S126 (RO) 0..5 Registration protocol states 0 protocol not active 1 waiting for TEI assignment 2 link connection establishment pending (w[...]

DART 200 CDPD Modem User’s Guide E S-Registers Sierra Wireless, Inc. E - 14[...]

PN1197-00 Revision 1.0 F DART AT Command Set AT command set usage AT commands can be concatenated (end-to-end or with a blank between commands) for up to a length of 80 characters including blanks. Some examples are shown below. • Normal command concatenation ATE1V1&D0&S1F3N2 ATS?S57?&V • White space concatenation (for readabilit[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 2 Table F-1. Commands beginning with letters A/ Repeat Repeats the last AT command. NOTE: An AT is not required preceding this command. A Answer Online Causes the DART to stop accepting commands and to wait for an incoming connection request on the active listening p[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 3 Table F-1. Commands beginning with letters (cont.) D (cont.) For a DART server the initial incoming datagram causes a RING message to be generated. If the auto answer is not specified by setting S-Register 0=1, the Ring message is repeated every 10 seconds for a t[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 4 Table F-1. Commands beginning with letters (cont.) D (cont.) Format: ATDPs s = destination address string plus optional modifiers Sn Follows the T or the P Dial modifier, or replaces the string in the AT*P (PING) command. It causes one of the modem’s stored desti[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 5 Table F-1. Commands beginning with letters (cont.) E Command Mode Echo Controls the echoing of characters when the modem is in command mode. Format: ATE0 Disable command mode character echo ATE1 Enable command mode character echo (default) Result codes: OK Valid a[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 6 Table F-1. Commands beginning with letters (cont.) I (cont.) Result codes: OK Valid argument ERROR Invalid argument NOT ENABLED Must be in service provider mode O Enter Online Mode Instructs the DART to return to the online state. Any following commands on the same[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 7 Table F-1. Commands beginning with letters (cont.) V Verbose Result Codes Selects whether the responses to modem commands use terse or verbose format. Terse responses consist only of a numeric digit followed by a carriage return (register S3), while verbose respon[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 8 Table F-1. Commands beginning with letters (cont.) X Extended Result Codes Selects whether the DART enables extended result codes. By default all result codes are enabled. Format: ATX0 Enable only codes 0...4 Extended results are mapped as appropriate to code 0...4[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 9 Table F-2. Commands beginning with ampersand (&) &C Set DCD Operation For serial ports, this command defines the usage of the data carrier detect (DCD) signal at the DART’s RS-232 interface. This signal can be tested by the MAS application to determine i[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 10 Table F-2. Commands beginning with ampersand (&) (cont.) &E Escape Code Recognition Allows the recognition of the escape character sequence to be enabled or disabled. The Escape code is defined in S-Register 2 (default is a +); the escape guard time is def[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 11 Table F-2. Commands beginning with ampersand (&) (cont.) &L Set DART Line Speed and Format For serial ports, this command allows the Mobile Application Subsystem (MAS) to set the line speed and format. All subsequent communications between the MAS and the[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 12 Table F-2. Commands beginning with ampersand (&) (cont.) &V View Active Profile and S-Registers Displays the active configuration of the DART modem. The following information is displayed: communications port settings, the status of AT commands E, V, Q, F,[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 13 Table F-2. Commands beginning with ampersand (&) (cont.) &Z Save Addresses (Dial Directory) Allows the user to save commonly used IP addresses in a nonvolatile memory location <n>, where <n> can be from 0 to 9. These addresses can be used as d[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 14 Table F-3. Commands beginning with backslash () (cont.) J (cont.) Format: ATJ0 No restrictions on channel selection (default) ATJ1 LSAI (CDPD 1.0) or WASI (CDPD 1.1) mode . Use only channels that have the same LSAI or WASI as the active NEI. Will be forced by [...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 15 Table F-3. Commands beginning with backslash () (cont.) N (cont.) Format: ATN2 B side only ATN3 A side preferred (default) ATN4 B side preferred Choose N3 or N4 only if the modem is used in a visiting (traveling) application Result codes: OK Valid argument[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 16 Table F-3. Commands beginning with backslash () (cont.) P Set PIN Requirement ; Change PIN Allows the user to require, not require, or change the modem’s PIN. The PIN is used as a password to prevent unauthorized access to the CDPD network. Refer to Chapter 3,[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 17 Table F-3. Commands beginning with backslash () (cont.) R (cont.) Format: ATR2 Register when connection is established, deregister when connection is terminated. Can be used only if the modem is operating as a client. ATR3 Turn off R2 option ATR4 Auto-regis[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 18 Table F-3. Commands beginning with backslash () (cont.) T Automatic Transmit Control Enables the inter-character time-out data forwarding operation of the packet assembler in online mode. When the time between characters received from the MAS exceeds the time-ou[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 19 Table F-4. Commands beginning with asterisk (*) (cont.) *B Enable/Disable Reception of CDPD Broadcasts Enables or disables the reception of IP broadcast packets. Refer to Chapter 4, Broadcast and Multicast Operation, for more information. Format: AT*B0 Disable CD[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 20 Table F-4. Commands beginning with asterisk (*) (cont.) *G SLIP Multicast Address Selection Permits the user to specify whether the multicast NEI or the modem’s active point-to-point NEI is passed, as the multicast data packet’s destination address, across the[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 21 Table F-4. Commands beginning with asterisk (*) (cont.) *K (cont.) Format: AT*K0 No keep-alives (default) AT*K1 Transmit only AT*K2 Receive (and discard) only AT*K3 Transmit/receive Result codes: OK Valid argument ERROR Invalid argument *L Set Listen Port Specifi[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 22 Table F-4. Commands beginning with asterisk (*) (cont.) *P Ping Remote Host Issues ICMP Echo Requests to a Remote Host and waits for a response. The wait time-out between pings and the packet size s defined by the values in S-Registers 70 and 71. Ping runs continu[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 23 Table F-4. Commands beginning with asterisk (*) (cont.) *S Initiate SLIP (Serial Line IP Mode) Session Initiates a SLIP session on the serial port. It is also used to return to SLIP mode following an escape. SLIP mode can be escaped by using the escape sequence o[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 24 Table F-4. Commands beginning with asterisk (*) (cont.) *U Unblock Modem - PIN Access Can be used to unblock the modem if the PIN is forgotten or is entered incorrectly 3 times. The modem is unblocked for the express purpose of entering a new PIN. Whenever this co[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 25[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 26 Clearing BLOCKED status When the Service Provider key is BLOCKED and an AT^P+ command is issued, the modem waits 30 seconds before responding with the BLOCKED response. This is intended to impose a barrier to any computer-generated attempt to determine the key val[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 27 Table F-6. Service Provider commands beginning with caret (^) (cont.) ^F Force PIN Usage Enables the application developer to specify whether or not modem users require PINs. If the carrier does not require PINs, they can still be required by the user with the AT[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 28 Table F-6. Service Provider commands beginning with caret (^) (cont.) ^H (cont.) Result codes: OK Valid argument ERROR Invalid argument NOT ENABLED Modem is not in service provider mode ^I Set the Service Provider Network ID (SPNI) Loads a SPNI into one of the 10 [...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 29 Table F-6. Service Provider commands beginning with caret (^) (cont.) ^S Set DART SLIP Address Sets the SLIP IP Address of the Modem. This internal address is a private address between the modem and the terminal connected to the serial port and is unknown to the [...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set Sierra Wireless, Inc. F - 30 Table F-7 Service Provider commands beginning with dash (-) -L Lock on a Specific Channel Permits the DART to override normal Radio Resource Management functions and lock itself on a specific channel. This is useful at Trade Shows where exhibitors are often reques[...]

DART 200 CDPD Modem User’s Guide F DART AT Command Set PN1197-00 Revision 1.0 F - 31 Table F-7. Service Provider commands beginning with dash (^) (cont.) -Z Display Current Authentication Credentials A diagnostic aid when modem registration fails after it has previously been able to successfully register. It shows the current values for the ASN ([...]

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PN1197-00 Revision 1.0 G Loading DART 200 Firmware Periodically, the DART 200 firmware needs to be updated, because of improvements to the DART’s capabilities, corrections for problems, or to keep pace with the evolving CDPD standard. When this need occurs, a ZIP file containing the upgrade materials will be available on the Sierra Wireless Web s[...]

DART 200 CDPD Modem User’s Guide G Loading DART 200 Firmware Sierra Wireless, Inc. G - 2 • If you see an *A1 or *A2 in the modem’s active profile enter: AT*A0&W • If you see an *A0 , or do not see an *A at all, then proceed to step 4 4. Insert the download diskette into a floppy disk drive on your PC. Make that drive the active drive by[...]

PN1197-00 Revision 1.0 H Problem Sheet If you are having trouble with your modem, please call Sierra Wireless Support (604.231.1100). If it is necessary to return the modem for repair, you will be given an RMA number and asked to fill out this form and return it with the modem. Do not return the modem without obtaining an RMA number. Sierra Wireles[...]

DART 200 CDPD Modem User’s Guide H Problem Sheet Sierra Wireless, Inc. H - 2[...]

PN1197-00 Revision 1.0 Glossary Acronyms AMPS Advanced Mobile Phone System Original name given to the analog voice cellular telephone system. The standard for cellular telephone service in North and South America plus some Pacific rim countries. CDPD uses the same cells and RF channels as AMPS. API Application Programming Interface ARN Authenticati[...]

DART 200 CDPD Modem User’s Guide Glossary Sierra Wireless, Inc. Glo ssary- 2 CDPD Cellular Digital Packet Data Wireless radio frequency (RF) packet switched data communication services. A communications system, operating over the existing AMPS cellular infrastructure, that provides services between Fixed End Systems (F-ES) and Mobile End Systems [...]

DART 200 CDPD Modem User’s Guide Glossary PN1197-00 Revision 1.0 Glossary- 3 DTE Data Terminal Equipment The official carrier name for the device (PC, MDT, RTU) attached to the modem (DCE). DTR Data Terminal Ready One of the RS-232 signal lines. Used to signal the modem (DCE) that the attached device (DTE) is ready to communicate (powered on). Ca[...]

DART 200 CDPD Modem User’s Guide Glossary Sierra Wireless, Inc. Glo ssary- 4 IEEE Institute of Electrical and Electronics Engineers A standards setting organization. IKE MDIS Key Exchange The MDIS initiated first step in exchanging encryption keys with the M-ES. IP Internet Protocol The basic Internet transport mechanism. In CDPD it operates abov[...]

DART 200 CDPD Modem User’s Guide Glossary PN1197-00 Revision 1.0 Glossary- 5 M-ES Mobile End System Refers to the DART as a component in the CDPD network MDBS Mobile Data Base Station Cellular tower serving a specific geographical area. Communicates by radio with the DART and by landline, microwave, etc. with the MDIS. See also, cell. MDIS Mobile[...]

DART 200 CDPD Modem User’s Guide Glossary Sierra Wireless, Inc. Glo ssary- 6 PPP Point-to-point protocol An alternative communications protocol used between computers, or between computers and routers on the Internet. An enhanced SLIP. See also, SLIP. RC4 The encryption algorithm used by CDPD for data transmissions between the M-ES and the MDIS. [...]

DART 200 CDPD Modem User’s Guide Glossary PN1197-00 Revision 1.0 Glossary- 7 SIE Symbols In Error Count of how many 6-bit symbols (used by the FEC to organize the data stream) were in error in the last data block. See also, FEC. SIM Subscriber Identity Module. The part of the modem containing the IP Address and authentication credentials SLIP Ser[...]

DART 200 CDPD Modem User’s Guide Glossary Sierra Wireless, Inc. Glo ssary- 8 UA Unnumbered Acknowledgement The MDIS response to a SABME from the M-ES when a CDPD link is being established. UDP User Datagram Protocol A low overhead, nonguaranteed packet delivery IP protocol A standard TCP/IP protocol that allows an application on one machine to se[...]

DART 200 CDPD Modem User’s Guide Glossary PN1197-00 Revision 1.0 Glossary- 9 baud A unit of signaling speed which represents the number of discrete conditions or signaling events per send that are transmitted or received over the link. The frequency at which the transmission medium is modulated. Often used incorrectly to state data transmission s[...]

DART 200 CDPD Modem User’s Guide Glossary Sierra Wireless, Inc. Glo ssary- 10 full duplex Communications operation where simultaneous two-way data transmission occurs across the data link. Devices using this method can send and receive at the same time. half duplex Communications operation where data transmission occurs in either direction but no[...]

DART 200 CDPD Modem User’s Guide Glossary PN1197-00 Revision 1.0 Glossary- 11 synchronous A method developed to transmit multiple characters (a data block) at one time. Each block of multiple 8-bit characters is preceded and followed by a synchronizing bit sequence to maintain character synchronization with the modem. Telnet A protocol used for r[...]

DART 200 CDPD Modem User’s Guide Glossary Sierra Wireless, Inc. Glo ssary- 12 wireline A communications link which does involve a hardwired connection. An example of a wireline link is the public switched telephone network.[...]

PN1197-00 Revision 1.0 Index Symbols &C, 8-16 &C1, 8-4 &C4, 8-4 &D, 5-10, 5-24 &D0, 8-5 &D1, 8-5, 8-11 &D2, 8-5, 8-11 &Dn, 8-3 &E, 5-24 &E0, 8-20 &E1, 8-20 &E2, 8-20 &S, 8-16 &S0, 8-4 &S1, 8-4 &S2, 8-4 &S3, 8-4 &W, 5-24 &Z, 5-2, 5-15, 8-24 A A side definition, 1-3, 2-7 acce[...]

DART 200 CDPD Modem User’s Guide Index Sierra Wireless, Inc. Index- 2 A (cont.) ATR2, 8-8 ATR3, 8-8 ATR4, 2-13, 2-15, 8-7, 8-8 ATR5, 8-7 ATRn, 8-6 ATS, 5-26 ATS?, 2-6, 2-7, 2-8, 4-3, 5-26 ATS0=1, 5-6, 5-18, 8-12 ATS+n, 4-3 ATS-n, 4-3 ATSn?, 8-6 ATS13 = 0, 8-8 ATS102?, 2-13 ATS126?, 2-16 ATS13=0, 2-15 ATS53?, 5-3, 5-7, 5-10, 5-15, 5-16 AT[...]

DART 200 CDPD Modem User’s Guide Index PN1197-00 Revision 1.0 Index- 3 C (cont.) cellular antennas, 1-2 preferred, 2-5 requirements for DART 200, 2-3 cellular carriers contacting, 1-3 Wireless Data Forurm, 1-4 Cellular Digital Packet Data. See CDPD central client application setting up, 5-19 channel hopping, 2-10 channels cellular, 2-11 changing [...]

DART 200 CDPD Modem User’s Guide Index Sierra Wireless, Inc. Index- 4 D (cont.) DART 200 (cont.) registering, 5-15, 3-1 selecting ports to listen to with, 5-17 sending data to the MAS, 5-3 security, 3-2 server setting up, 8-12 server mode, 8-18 setting up, 2-5, 2-6, 5-4, 8-2 auto answer, 8-11 for CDPD network, 5-17 for TCP application, 5-19 for U[...]

DART 200 CDPD Modem User’s Guide Index PN1197-00 Revision 1.0 Index- 5 G GMID, 2-6, 2-8, 4-3 defining, 4-3 field, 4-3 ground plane, 2-3 Group Multicast Identifier field. See GMID H host echo, 5-28 Hardware Flow Control, 8-13,8-14, 8-17 Hayes-compatible. See AT commands I ICMP PING, 4-1 Internet, 5-22 address classes, 5-24 browsers, 5-22 connectio[...]

DART 200 CDPD Modem User’s Guide Index Sierra Wireless, Inc. Index- 6 M (cont.) messages broadcast, 4-1, 4-4 receiving, 4-2 DART 200, 8-25 encrypting, 4-1 error, 8-25 listening for incoming, 5-6, 5-18 multicast, 4-1, 4-2 starting with AT, 7-2 Mobile Application Subsystem. See MAS Mobile Data Base Stations. See MDBSs Mobile Data Intermediate Syste[...]

DART 200 CDPD Modem User’s Guide Index PN1197-00 Revision 1.0 Index- 7 Q quiet mode, 8-12 definition, 8-20 R radio interference troubleshooting, 2-15 Receive Signal Strength Indication. See RSSI receive locking definition, 5-6 remote telemetry application setting up, 5-19 Remote Terminal Units. See RTUs Request to Send. See RTS response codes, 8-[...]

DART 200 CDPD Modem User’s Guide Index Sierra Wireless, Inc. Index- 8 S (cont.) S-Registers, 2-5, 2-8, 2-9, 2-12, 2-13, 2-14, 2-15, 2-16, 2-17, 2-18, 2-20 13, 8-8 50, 2-3, 2-8, 2-9, 2-12, 2-13, 2-15, 2-16, 2-17, 2-19, 2-20, 2-22, 5-3, 5-4, 5-6, 5-7, 5-8, 5-10, 5-14, 5-15, 5-18, 5-19, 5-24, 5-29, 5-30, 8-2, 8-5, 8-6, 8-7, 8-9, 8-11, 8-12, 8-17, 8-[...]

DART 200 CDPD Modem User’s Guide Index PN1197-00 Revision 1.0 Index- 9 W, X, Y, Z WASI, 8-22 multiple entries for, 8-22 storing values for, 8-22 wide area service ID. See WASI Winsock, 5-26 Wireless Data Forum, 1-4 XID parameters, 2-11, 2-12 XID threshold, 2-12 XON/XOFF, 8-12 characters, 5-23, 5-31, 5-29, 8-13, 8-17[...]

DART 200 CDPD Modem User’s Guide Index Sierra Wireless, Inc. Index- 10[...]

PN1197-00 Revision 1.0 NOTES __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________[...]

DART 200 CDPD Modem User’s Guide Notes Sierra Wireless, Inc. Notes- 2 __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________[...]

DART 200 CDPD Modem User’s Guide Notes PN1197-00 Revision 1.0 Notes - 3 __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ ________________________________________[...]

DART 200 CDPD Modem User’s Guide Notes Sierra Wireless, Inc. Notes- 4 __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________[...]