Nortel Networks CTA 500dm инструкция обслуживания

P0873832 Issue 05 CT A 500 dm On Line Guide CT A 500 dm The CT A 500 digital modem (CT A 500 dm ) is an optional device used with the Norstar Integrated Communication System (ICS). W ith ICS software, using release 2.0 or higher , the CT A 500 dm provides integrated desktop solutions for digital networking applications. W ith optional Norstar T ele[...]

2 CT A 500dm CT A 500 dm On Line Guide P0873832 Issue 05 The CT A 500 dm serves as a digital modem and terminal adapter (T A). A terminal adapter is a device that allows non-ISDN devices to work with ISDN. It provides reliable high speed end-to-end digital connectivity between your computer and a remote data server using the ICS and the public swit[...]

CT A 500dm 3 P0873832 Issue 05 CT A 500 dm On Line Guide Any PC equipped with W indows95, Internet application software, and a 16550 UAR T (1 15.2 kbit/s capability) can use the CT A 500 dm . Applications The CT A 500 dm can be used for any application that requires dial-up capability and uses Point-to-Point Protocol . These applications include ¥[...]

4 CT A 500dm CT A 500 dm On Line Guide P0873832 Issue 05 CT A 500 dm feature summar y ¥ digital networking using PPP/MP ¥ simpliÞed installation and conÞguration using installation wizard ¥ high-speed network rate (56, 64, 1 12, or 128 kbit/s) ¥ high-speed serial port support (maximum 1 15,200 baud) ¥ integrated desktop solutions (Norstar se[...]

P0873832 Issue 05 CT A 500 dm On Line Guide First-time setup This section guides you through the initial installation and setup of the CT A 500 dm . Installation is carried out from the Personal Productivity Suite CD-ROM. Use the steps listed below to complete the installation. 1. Make the physical connections to the CT A 500 dm . See Installation [...]

6 First-time setup CT A 500 dm On Line Guide P0873832 Issue 05[...]

P0873832 Issue 05 CT A 500 dm On Line Guide Installation and setup Y ou can place the CT A 500 dm on the desk or mount it on the wall. Refer to ÒW all mounting the CT A 500dmÓ on page 8 of this document for the procedure. The CT A 500 dm has four jacks that are used to connect a Norstar telephone, an ICS, a computer , and the power supply . ¥ co[...]

8 Installation and setup CT A 500 dm On Line Guide P0873832 Issue 05 W all mounting the CT A 500 dm 1. T ape the paper template, supplied with the product, to the wall allowing 12.5 cm (6 in.) clearance for connections to the CT A 500 dm . 2. Insert the screws as indicated on the template. Use 4 mm (#8) screws, leaving 6 mm (0.5 in.) of the screw e[...]

Installation and setup 9 P0873832 Issue 05 CT A 500 dm On Line Guide Setting up the ICS Program the ICS for the CT A 500 dm the same way that you program the ICS for a Norstar set. Y ou can program line access, line pool codes and restrictions to apply to outgoing calls. The CT A 500 dm must be assigned to a digital line or to a digital line pool. [...]

10 Installation and setup CT A 500 dm On Line Guide P0873832 Issue 05 Setting up the PC Each PC operating system requires a different set up. Note: Installation using another vendor Õ s protocol stack packages will differ . See the A T commands section of this document for information on conÞguring advanced operations on the CT A 500 dm from your[...]

P0873832 Issue 05 CT A 500 dm On Line Guide Configuration Some operations that you can perform with the CT A 500 dm include the following: ¥ ConÞguring the PC serial port ¥ Installing CT A 500dm and Norstar T API Service Provider software Note: Before you begin conÞguration, connect the ICS and the PC as described in the ÒInstallation and set[...]

12 Configuration CT A 500 dm On Line Guide P0873832 Issue 05 Configuring the PC serial por t ¥ V erify the port baud rate is set to 1 15,200 (default) using the Serial Interface Rate command. ¥ Set the character length, using the Set Data Bits command and parity , using the Set Parity command. The default is 8 bits with no parity (recommended).[...]

Configuration 13 P0873832 Issue 05 CT A 500 dm On Line Guide 7. Click Next. A message displays the name assigned to the installation. If you need more than one init string for the CT A 500 dm , refer to ÒAdding multiple CT A 500dm conÞgurationsÓ on page 16 for the procedure. 8. Click OK. 9. Click Y es to automatically setup Internet access thro[...]

14 Configuration CT A 500 dm On Line Guide P0873832 Issue 05 17. When the Connection Settings dialog box displays, enter the Internet service provider telephone number . 18. Click Next. 19. The installation is complete and you need to restart your computer before using the CT A 500 dm . 20. Click the Finish button. Configuring the CT A 500 dm (if[...]

Configuration 15 P0873832 Issue 05 CT A 500 dm On Line Guide Configure CT A 500 dm to access PP/MP data calls 1. Double-click on the My Computer icon on your desktop. 2. Double-click Dial-Up Networking icon. 3. Double-click Make New Connection icon. 4. When the Make New Connection window displays, choose Norstar CT A 500 dm modem from the pull-do[...]

16 Configuration CT A 500 dm On Line Guide P0873832 Issue 05 9. Click OK. 10. Close all windows. Adding multiple CT A 500 dm configurations 1. Click the Start button. 2. Choose Programs from the menu. 3. Choose CT A 500 dm from the sub-menu. 4. Choose CT A 500 dm conÞgurations. 5. Select the ConÞguration tab. 6. Choose settings for the required[...]

Configuration 17 P0873832 Issue 05 CT A 500 dm On Line Guide Upgrading the CT A 500 dm software CT A 500 dm software upgrades are periodically made available through your Norstar distributor . Contact your Norstar distributor for details about receiving software upgrades. Use the CT A 500 dm conÞguration utility to display current settings or to [...]

18 Configuration CT A 500 dm On Line Guide P0873832 Issue 05[...]

P0873832 Issue 05 CT A 500 dm On Line Guide Installing Norstar T API SP T o use a CT A 500 dm for T API applications, Norstar TSP must be installed. It can be installed at the same time as the CT A 500 dm software via the Personal Productivity Suite (PPS) installation procedure, or it can be installed later from the PPS CD. Note: The current CT A 5[...]

20 Installing Norstar T API SP CT A 500 dm On Line Guide P0873832 Issue 05 5. In the Dialing properties window , locate T o access an outside line, first dial: and enter x for local (where x represent s the access code) and when applicable, y for long distance (where y represents the code to access a private network). 6. Click OK. 7. Close all win[...]

Installing Norstar T API SP 21 P0873832 Issue 05 CT A 500 dm On Line Guide 4. As the installation progresses, choose the appropriate options and click the Next button as required. 5. Once the Setup Complete window displays, click the Finish button. The program is installed and a PCM icon appears on the desktop. 6. T o access the program, double-cli[...]

22 Installing Norstar T API SP CT A 500 dm On Line Guide P0873832 Issue 05 Note: Refer to the Nortel IT AS web page for tips and information on other conÞgurations.[...]

P0873832 Issue 05 CT A 500 dm On Line Guide Resource sharing Y ou can access information, software or peripheral devices (such as printers) that are installed on another PC from your PC when both PCs are equipped with a CT A 500 dm and W in95 Plus! Dial-Up Server software. Note: Dial-Up Server software is available from either the Microsoft Plus! P[...]

24 Resource sharing CT A 500 dm On Line Guide P0873832 Issue 05 Installing Dial-Up Ser ver If you use your PC to dial into other PCs, enable NetBEUI in the Server T ypes window . If other PCs will be dialling into your PC, enable IP , IPX and NetBEUI. 1. Install Dial-Up Server from either the Plus! Pack or the ISDN Accelerator Pack. 2. Open My Comp[...]

Resource sharing 25 P0873832 Issue 05 CT A 500 dm On Line Guide The Computer Name is required by PCs attempting to access your PC. 5. Close the Network window . The Control Panel window is still open. 6. Select one resource that you want to make available to other PCs, (for example, fax machine) and select it. 7. From the File menu select Propertie[...]

26 Resource sharing CT A 500 dm On Line Guide P0873832 Issue 05 7. Select PPP: W indows95,... as T ype of Dial-Up Server . 8. Check the to network box in Advanced options. 9. Check NetBEUI for Allowed Network Protocols. 10. Click OK. 1 1. Click OK. In the Dial-Up Networking window , double-click the icon of the modem you want to connect. The name a[...]

Resource sharing 27 P0873832 Issue 05 CT A 500 dm On Line Guide resource on the Dial-Up Server under whichever Drive letter you select. 6. Enter the Resource you want to connect to in the Path Þeld. The syntax is: Computer NameShare Name Note: W indows Explorer displays the new drive letter . 7. Click OK.[...]

28 Resource sharing CT A 500 dm On Line Guide P0873832 Issue 05[...]

P0873832 Issue 05 CT A 500 dm On Line Guide A T commands Use the following types of A T commands to communicate with your CT A 500 dm . ¥ ProÞle commands ¥ State commands ¥ General commands ¥ S-registers commands ¥ Call Control commands ¥ TCM Ports Protocol Selection commands ¥ MP commands ¥ Serial Interface commands ¥ Serial Interface Co[...]

30 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Profile A proÞle deÞnes a CT A 500 dm set-up. Each proÞle deÞnes the rate adaptation protocol and the options used with that protocol, the bearer capability and data rate of the next call dialed, the bearer capabilities and acceptable data rates for inbound calls, and the detailed ope[...]

A T commands 31 P0873832 Issue 05 CT A 500 dm On Line Guide Load Stored Profile The Load Stored ProÞle Command Z[value] or &F[value] instructs the CT A 500 dm to load all values that are stored in a proÞle. V alue 0 indicates that the factory proÞle should be loaded. V alue 1 indicates that the user proÞle should be loaded. Any calls in pr[...]

32 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 W rite Active Profile to Memor y The W rite Active ProÞle to Memory Command &W instructs the CT A 500 dm to save the current conÞguration to permanent memory . The saved proÞle becomes the user proÞle. Result Codes OK Appears when the command is executed. ERROR Appears when the co[...]

A T commands 33 P0873832 Issue 05 CT A 500 dm On Line Guide On-line Data State IA valid connection exists between the CT A 500 dm and another device through the network interface. The selected rate adaptation protocol operates on data transferred through the interface between the CT A 500 dm and the attached computer . Y ou cannot enter the On-line[...]

34 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Return to On-line Data State The Return to On-line Data State Command O instructs the CT A 500 dm to return to the On-line Data State. Use this command to determine the number of B-channels active for rate adaptation protocols that use more than one B-channel, since the aggregate network r[...]

A T commands 35 P0873832 Issue 05 CT A 500 dm On Line Guide Result Codes OK Appears following successful completion of Þle transfer and Flash programming. ERROR Appears when the programming failed, and the original Flash contents remain unchanged. Escape Sequence The escape sequence pause, escape character , escape character , escape character , p[...]

36 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 En set echo command 0 turn echo off 1 turn echo on (default) &Zn= save dial string locations 0-9 (default 0) &Zn? display saved dial string locations 0-9 (default 0) Vn verbose control 0 numeric indications 1 full indications (default) Qn result code control 0 result codes are sent[...]

A T commands 37 P0873832 Issue 05 CT A 500 dm On Line Guide Request Identification The Request IdentiÞcation Command I[value] instructs the CT A 500 dm to return information about itself to the attached computer . The returned strings depend on the value passed in the command. See the possible values in the following table. If no value is speciÞ[...]

38 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 View Parameters The V iew Parameters Command &V[value] instructs the CT A 500 dm to return stored values. The returned strings vary according to the value included in the command. (See the possible values in the following table.) If no value is speciÞed, the default value of 0 is used[...]

A T commands 39 P0873832 Issue 05 CT A 500 dm On Line Guide Save Dial String The Save Dial String Command &Z[value=]dial string stores dial strings. The value indicates the location of the dial string (0-9). If no location is speciÞed, the default location (0) is used. The maximum length of the dial string is 20 characters. There can be a maxi[...]

40 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 V erbose Control The V erbose Control Command V[value] controls the indications sent by the CT A 500 dm . A value of 0 instructs the CT A 500 dm to send only numeric indications. A value of 1 instructs the CT A 500 dm to send full indications. The default value is 1. The numeric responses [...]

A T commands 41 P0873832 Issue 05 CT A 500 dm On Line Guide Call Monitoring Result Code Selection The Call Monitoring Result Code Selection Command X[value] controls the format of result codes sent by the CT A 500 dm in verbose mode during call setup. (See possible values in the following table.) V alues 1 and 2 are identical since the CT A 500 dm [...]

42 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Set S-Register The Set S-Register Command Sregister number=[value] instructs the CT A 500 dm to set the speciÞed S-register to a value. The register number must be speciÞed. An unspeciÞed value causes the register to have a default setting and an initial factory value. Result Codes OK A[...]

A T commands 43 P0873832 Issue 05 CT A 500 dm On Line Guide S-register set The following table shows the complete S-register set for the CT A 500 dm . Not all options are supported for all versions of the CT A 500 dm . Register Description Value S0 number of rings until answer 0-255 (default 1) S1 ring count (read only) 0-255 (default 0) S2 escape [...]

44 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Call Control Call Control Commands are associated with making calls through the CT A 500 dm . They are also understood by most computer software. Call Control commands summar y Dial Command The Dial Command D[dial string][;] instructs the CT A 500 dm to originate a call. The dial string co[...]

A T commands 45 P0873832 Issue 05 CT A 500 dm On Line Guide The type of dialing depends on the type of network chosen to route the call, so the directives t (tone) and p (pulse) have no meaning and are ignored. The ; command line terminator prompts the CT A 500 dm to dial the string, attempt to make the connection, and immediately change to the On-[...]

46 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 BUSY Appears when the connection was not completed due to detection of a busy indication in the network. ERROR Appears when the command was issued while in the On- line Command State, if a stored dial string was speciÞed and the dial string was empty , or if the CT A 500 dm is out-of-sync[...]

A T commands 47 P0873832 Issue 05 CT A 500 dm On Line Guide Hook Command The Hook Command H instructs the CT A 500 dm to disconnect from the current call. Result Code OK Appears upon completion of the command. DCD is dropped immediately before the indication if &C is 1 (see ÒSerial Interface Control LinesÓ on page 56 for more details). Outgoi[...]

48 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 The following table shows the values for bearer service selection. Result Codes OK Appears when the selected value is supported. ERROR Appears when the selected value is unrecognized or is not supported. Channel Speed Control The Channel Speed Control Command %A4=value instructs the CT A 5[...]

A T commands 49 P0873832 Issue 05 CT A 500 dm On Line Guide messages. See ÒBearer CapabilitiesÓ on page 81 for more information. Note: At least one of the bearer rates must be enabled so that the CT A 500 dm can accept incoming calls. Incoming Call Control commands summar y Incoming V oice Bearer Call Rate The Incoming V oice Bearer Call Rate Com[...]

50 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Speech Bearer Call Answer Control The Speech Bearer Call Answer Control Command %A93=value allows the CT A 500 dm to accept or reject incoming calls received over the speech bearer service. The following table shows the values for speech bearer service calls control. Result Codes OK Sent i[...]

A T commands 51 P0873832 Issue 05 CT A 500 dm On Line Guide Data Bearer Call Answer Control The Data Bearer Call Answer Control Command %A95=value allows the CT A 500 dm to accept or reject incoming calls received over the data bearer service. The following table shows the values for data bearer service calls control. Result Codes OK Appears when t[...]

52 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 TCM Por ts Protocol Selection The TCM Port Protocol Selection Command controls use of the TCM port of the CT A 500 dm . Stored values are part of the CT A 500 dm proÞles. TCM Por t Protocol Selection Command Rate Adaptation Protocol Selection The Rate Adaptation Protocol Selection Command[...]

A T commands 53 P0873832 Issue 05 CT A 500 dm On Line Guide MP The following command is available for CT A 500 dm versions that support MP . MP command summar y Rate Multiplier The Rate Multiplier Command @B0=value controls the number of links used when the CT A 500 dm is operating in the MP mode. A value of 1 indicates that a single link may be us[...]

54 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Serial Inter face This section describes the commands associated with the serial interface. All values are saved as part of the CT A 500 dm proÞle. Serial Inter face commands summar y Serial Inter face Rate The Serial Interface Rate Command &P2=value sets the rate of the interface bet[...]

A T commands 55 P0873832 Issue 05 CT A 500 dm On Line Guide Result Codes OK Appears when the value is supported. ERROR Appears when the selected value is not recognized or is not supported. Set Parity The Set Parity Command &P3=value sets the parity value of the interface between the CT A 500 dm and the attached computer . The following table s[...]

56 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Set Stop Bits The Set Stop Bits Command &P6=value sets the number of stop bits on the interface between the CT A 500 dm and the attached computer . The following table shows the supported values. Result Codes OK Appears when the value is supported. ERROR Appears when the selected value[...]

A T commands 57 P0873832 Issue 05 CT A 500 dm On Line Guide Serial Inter face Control Lines commands summar y Flow Control The Flow Control Command Qvalue sets the method of ßow control on the interface between the CT A 500 dm and the attached computer . The following table shows the allowable values. Command Description Value Qn serial interfac[...]

58 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Note: XON/XOFF ßow control uses characters often referred to as control-Q and control-S. Result Codes OK Appears when the value is supported. ERROR Appears when the selected value is not recognized or is not supported. 4 not supported Value Use[...]

A T commands 59 P0873832 Issue 05 CT A 500 dm On Line Guide DCD Operation &Cvalue The DCD Operation Command sets the operation of the DCD pin. The following table shows the allowable values. The DCD pin tracks the connection and asserts when the CT A 500 dm has successfully completed a physical layer connection over one of the network B-channel[...]

60 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 All modes of operation may not apply with all selections of rate adaptation protocols. When &D is set to 3, assertion of the DTR signal causes a software reset of the CT A 500 dm , even if it is already in the command state. If the CT A 500 dm detects that it has been enumerated by a W[...]

A T commands 61 P0873832 Issue 05 CT A 500 dm On Line Guide DSR Operation The DSR Operation Command &Svalue sets the operation of the DSR pin. The following table shows the allowable values. The DSR signal is turned on at start-up to be compatible with W indows95 Plug and Play requirements. This corresponds to a &S setting of 0. No other DS[...]

62 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 indication is modiÞed to be RING:1234567. This is called the concatenated format. The second format is a T ag = V alue pair , where the only supported tag is NMBR. The same example would return the string NMBR = 1234567 on its own line after the Þrst RING indication. A query may be sent [...]

A T commands 63 P0873832 Issue 05 CT A 500 dm On Line Guide returns an ASCII string containing the calling line ID information. This command is valid only during incoming calls and is independent of the Calling Line ID Delivery Control. If the calling line ID is unknown, the returned string is UNKNOWN. There is no numeric form to the UNKNOWN string[...]

64 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Caller ID security commands summar y Caller ID Security Mode Selection The Caller ID Security Mode Selection Command @Svalue allows enabling of either CLID screening or blocking, or to disabling of Caller ID security altogether . Result Codes OK Appears when the value is understood and cal[...]

A T commands 65 P0873832 Issue 05 CT A 500 dm On Line Guide allows addition of a number to the Caller ID security list. Y ou can store up to ten 13-digit numbers in the list. Result Codes OK Appears when the number is successfully added to the list. ERROR Appears when the list contains ten numbers or the number is longer than 13 digits. Delete Numb[...]

66 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 Summar y of A T commands Command Description Value &Fn load active profile from factory profile 0 factory profile (default) 1 user profile Zn load active profile from stored profile 0 factory profile 1 user profile (default) &Yn select profile to load into active profile on power-u[...]

A T commands 67 P0873832 Issue 05 CT A 500 dm On Line Guide Xn call monitoring result code selection 0 connect only 1 connect rate only 2 connect rate only 3 connect rate and busy 4 connect rate and busy (default) Sn= set value to S-register depends on register Sn? query S-register value S0 number of rings until answer 0-255 (default 1) S1 ring cou[...]

68 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 %A98=n set outgoing call type 0 data bearer service (default) 1 3.1 kHz audio bearer service 2 speech bearer service %A4=n select speed of TCM channels, outgoing calls 0 64 kbit/s 1 56 kbit/s (default) %A93=n set speech bearer call answer 0 disabled (default) 1 enabled %A94=n set 3.1 kHz a[...]

A T commands 69 P0873832 Issue 05 CT A 500 dm On Line Guide &P6=n serial interface stop bits per character 0 one stop bit (default) 1 one and one-half stop bits 2 two stop bits Qn serial interface flow control 0 none 1 bidirectional XON/XOFF 2 not supported 3 bidirectional RTS/CTS (default) 4 not supported &Cn DCD operation 0 always on 1 t[...]

70 A T commands CT A 500 dm On Line Guide P0873832 Issue 05 @A=n add specified number to CLID security list @D=n remove specified number from CLID security list @C clear all stored numbers &V4 display stored numbers Command Description Value[...]

P0873832 Issue 05 CT A 500 dm On Line Guide T roubleshooting Power problem? There is no power to the CT A 500 dm . ¥ Make sure that the power adapter is securely plugged into the CT A 500 dm . ¥ Make sure that the power adapter is plugged into a live outlet. There is power but the CT A 500 dm cannot establish a link. ¥ Make sure that the TCM cab[...]

72 T roubleshooting CT A 500 dm On Line Guide P0873832 Issue 05 ¥ If the cable is faulty or the ICS is down, the attached phone will also not work. A T command problem? The CT A 500 dm does not respond to A T commands sent from your PC. ¥ Make sure that your PC, terminal or other DTE is conÞgured correctly . ¥ Check the DTE connection. If the D[...]

T roubleshooting 73 P0873832 Issue 05 CT A 500 dm On Line Guide A T commands do not appear . ¥ T o see the commands that you type in a HyperT erminal window , you must Disconnect, then Connect again. Using HyperT er minal, the message “Unable to open COMx por t” appears. ¥ The CT A 500 dm may be in use by another application (for instance, Di[...]

74 T roubleshooting CT A 500 dm On Line Guide P0873832 Issue 05 properties. Ensure ÒUse country and area codeÓ is deselected if using MP with two dial out numbers. The PC receives bad data after a data call connection. ¥ Make sure that the CT A 500 dm and the remote device are set to the same rate adaptation protocol. See ÒRate adaptation proto[...]

P0873832 Issue 05 CT A 500 dm On Line Guide Appendix Canadian & US Safety Installation Instr uctions Please Read Carefully W ARNING : T o avoid electrical shock hazard to personnel or equipment damage observe the following precautions when installing telephone equipment: 1. Never install telephone wiring during a lightning storm. 2. Never insta[...]

76 Appendix CT A 500 dm On Line Guide P0873832 Issue 05 For equipment with external mains adapters: CAUTION : Intended for use in a protected environment. Use only a Nortel supplied or recommended mains power adapter marked as indicated below: The marking on the product indicates compliance with the EU Low V oltage Directive (L VD) and the Electrom[...]

Appendix 77 P0873832 Issue 05 CT A 500 dm On Line Guide 7. Do not allow anything to rest on the power cord. Do not locate this product where the cord will be abused by persons walking on it. 8. Do not overload wall outlets and extension cords as this can re- sult in the risk of fire or electric shock. 9. Never spill liquid of any kind on the produc[...]

78 Appendix CT A 500 dm On Line Guide P0873832 Issue 05 (PSTN). The FCC registration number appears on a sticker af Þxed to the equipment. For more regulatory information, refer to Norstar Installation Guide that came with your system. EMI/EMC Note: This device complies with Class A EMI requirements when connected to host equipment that meets Clas[...]

Appendix 79 P0873832 Issue 05 CT A 500 dm On Line Guide These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to rad[...]

80 Appendix CT A 500 dm On Line Guide P0873832 Issue 05 Rate adaptation protocol specifications The CT A 500 dm supports two rate adaptation protocols. These protocols allow data leaving the computer to be properly carried over the network to another computer or LAN. The CT A 500 dm supports the following protocols: ¥ Point-to-Point Protocol ¥ M[...]

Appendix 81 P0873832 Issue 05 CT A 500 dm On Line Guide other authentication protocol is selected, the CT A 500 dm will not be able to use MP and the call must be redialed using PPP . Link Assumptions For PPP and MP , it is assumed that the links are CRC-16 with Maximum Receive Units (MRU) less than 1750 bytes. For MP , it is assumed that call back[...]

82 Appendix CT A 500 dm On Line Guide P0873832 Issue 05 CT A 500 dm LED The status LED is on the back of the CT A 500 dm . It provides information about the current state of the CT A 500 dm and the B-channels based on its ßashing pattern. The following table shows the LED ßashing patterns and CT A 500 dm states. LED Pattern CTA 500 dm State B-cha[...]

Appendix 83 P0873832 Issue 05 CT A 500 dm On Line Guide Numeric CT A 500 dm responses Initialization strings The following table shows some suggested initialization strings. In all examples, Flow Control is set to hardware (q3) and DTR Operation is set to hang up (&d2). Numeric response Indication 0O K 1 RING 2:number RING:number 3 NO CARRIER [...]

84 Appendix CT A 500 dm On Line Guide P0873832 Issue 05 DB-25 and DB-9 signal summar y The following tables show which DB-25 and DB-9 pins are used by the CT A 500 dm and what the signals are used for by the CT A 500 dm . DB-25 connection DB-25 pin RS-232 function CTA 500 dm function 1 Shield Shield 2 Transmitted Data TD 3 Received Data RD 4 Reques[...]

Appendix 85 P0873832 Issue 05 CT A 500 dm On Line Guide DB-9 connection Acronyms used in this document A TMÑAsynchronous transfer mode CHAPÑChallenge Handshake Authentication Protocol CSAÑCanadian Standards Association CT A 500dmÑComputer T elephony Adapter digital modem modulator/demodulator) CTIÑComputer T elephony Integration DNÑDirectory [...]

86 Appendix CT A 500 dm On Line Guide P0873832 Issue 05 LEDÑLight Emitting Diode MPÑPoint-to-Point Protocol/Multi-link Protocol MRUÑMaximum Receive Units P APÑPassword Authentication Protocol PPPÑPoint-to-Point Protocol PSDNÑPublic Switched Digital Network PSTNÑPublic Switched T elephone Network T AÑT erminal Adapter T API SPÑT elephony Ap[...]