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ZyXEL Communications 56K manual

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Table of contents for the manual

  • Page 1

    User's Guide for ZyXEL Omni 56K USB Modem ZyXEL T OTAL I NTERNET A CCESS S OLUTIONS ZyXEL Communications Corporation[...]

  • Page 2

    User's Guide for ZyXEL Omni 56K USB Modem ii ZyXEL Omni 56K USB Modem Trademarks : Product and corporate names mentioned in this publication are used for identification purposes only and may be properties of their respective owners. All rights reserved. The contents of this publication may not be reproduced in any part or as a whole, transcrib[...]

  • Page 3

    User's Guide for ZyXEL Omni 56K USB Modem iii[...]

  • Page 4

    User's Guide for ZyXEL Omni 56K USB Modem iv[...]

  • Page 5

    User's Guide for ZyXEL Omni 56K USB Modem v Limited Warranty ZyXEL Omni 56K USB Modem Conditions of ZyXEL Limited Warranty: ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or workmanship for a period of up to two (2) years from the date of purchase. During the warranty period, and upo[...]

  • Page 6

    User's Guide for ZyXEL Omni 56K USB Modem vi Customer Support If you have questions about your ZyXEL product or desire assistance, contact ZyXEL Communications Corporation offices worldwide, in one of the following ways: METHOD LOCATION E-MAIL – SUPPORT/SALES TELEPHONE/FAX WEB SITE/FTP SITE REGULAR MAIL s upport@zyxel.com.tw support@europe.z[...]

  • Page 7

    User's Guide for ZyXEL Omni 56K USB Modem vii T able of Contents DECLAR A TION OF CONFORMITY…………………………………………………………………III CHAPTER 1 INTRODUCTION ............................................................................................. 1-1 1.1 Main Features ...................................[...]

  • Page 8

    User's Guide for ZyXEL Omni 56K USB Modem viii 5.2.2 Service Class 2 Commands ..................................................................... 5-12 5.2.3 Service Class 2.0 Commands .................................................................. 5-16 5.2.4 Voice AT Commands ...............................................................[...]

  • Page 9

    User's Guide for ZyXEL Omni 56K USB Modem ix List of T ables Table 1. Front Panel LEDs for Omni 56K USB ................................................ 2-1 Table 2. Back Panel Description ....................................................................... 2-2 Table 3. Hardware Specifications ...............................................[...]

  • Page 10

    [...]

  • Page 11

    User's Guide for ZyXEL Omni 56K USB Modem xi List of Figures Figure 1. Back Panel Switches ...................................................................... 2-2 Figure 2. Back Panel Connections ................................................................. 2-3[...]

  • Page 12

    [...]

  • Page 13

    User's Guide for ZyXEL Omni 56K USB Modem xiii Preface Thank you for purchasing the ZyXEL Omni 56K USB modem. About ZyXEL Omni 56K USB The Omni 56K USB is an analog Data/Fax/Voice modem used for Internet access via the PSTN (Public-Switched Telephone Network) line. It supports the convenience of Universal Serial Bus (USB) connection to PC. Use[...]

  • Page 14

    [...]

  • Page 15

    User's Guide for ZyXEL Omni 56K USB Modem 1-1 Chapter 1 Introduction This chapter introduces you to the features and specifications for the ZyXEL Omni 56K USB modem, and provides instructions for installing your modem. 1.1 Main Features n ZyDAS ZD1051 data pump with V.90 capability. n USB technology with USB bus power for easy installation (US[...]

  • Page 16

    [...]

  • Page 17

    User's Guide for ZyXEL Omni 56K USB Modem 2-1 Chapter 2 Installing ZyXEL Omni 56K USB 2.1 Panel Description 2.1.1 Front Panel LEDs The description of front panel LEDs is as follows: Table 1. Front Panel LEDs for Omni 56K USB LED FUNCTION DESCRIPTION USB USB Indicator ON: USB link is up OFF: USB link is down OH Hook Status ON: off hook OFF: on [...]

  • Page 18

    User's Guide for ZyXEL Omni 56K USB Modem 2-2 2.1.2 Back Panel Figure 1. Back Panel Table 2. Back Panel Description BACK PANEL DESCRIPTION USB Universal Serial Bus connector that connects to any one of your devices with USB port, such as your computer or USB hub. LINE Analog port RJ-11 terminal jack for connecting to wall jack. PHONE Analog po[...]

  • Page 19

    User's Guide for ZyXEL Omni 56K USB Modem 2-3 2.2 Connecting Your Omni 56K USB When connecting your Omni 56K USB modem, please refer the following figure: Figure 2. Back Panel Connections 2.2.1 USB Connector The Omni 56K USB is an USB (Universal Serial Bus)-based modem, providing a USB connector on the back panel of the device.[...]

  • Page 20

    User's Guide for ZyXEL Omni 56K USB Modem 2-4 2.3 Getting Started When you plug the USB connector attached with your Omni 56K USB to the USB port of your PC (personal computer), the Plug and Play function of the operating system detects if its driver has been installed. If not, Windows® prompts you for the USB device driver. For more informat[...]

  • Page 21

    User's Guide for ZyXEL Omni 56K USB Modem 3-1 Chapter 3 Specifications and Functional Description This chapter introduces the specifications and functions of the Omni 56K USB. This chapter and the next three chapters are designed for advanced users who might need more information about Omni 56K USB modem's specifications and functions whe[...]

  • Page 22

    User's Guide for ZyXEL Omni 56K USB Modem 3-2 3.1.2 Firmware Specification Table 4. Firmware Specifications Physical layer for data mode Multi-Auto ACPM of V.90 V.34bis 33.6 Kbps to 2.4 Kbps V.32bis 14.4/12/9.6/7.2/4.8 Kbps V.32 9.6/4.8 Kbps V.23 1200/600/75 bps V.22bis 2.4 Kbps V.22/Bell 212 1.2K bps V.21/Bell 103 300 bps Auto Fallback/Forwar[...]

  • Page 23

    User's Guide for ZyXEL Omni 56K USB Modem 3-3 3.2 Protocol Support n Data Physical Layer . ITU-T V .90 . ITU-T V .34 bis / V .34 . ITU-T V .32bis/ V .32 . ITU-T V .22bis/ V .22 . ITU-T V .21 . ITU-T V .23 . Bell 212A . Bell 103 n Fax Physical Layer . ITU-T V .17 . ITU-T V .29 . ITU-T V .27ter . ITU-T V .21 n Error Control and Data Compression [...]

  • Page 24

    User's Guide for ZyXEL Omni 56K USB Modem 3-4 3.3 Omni 56K USB Capability The data/fax/voice feature of the Omni 56K USB is described in the following table: Table 5. Data/Fax/Voice Feature Description FEATURE DESCRIPTION Data . 2W Dial-Up Line . Multi-auto/V.90/V.34/V.32bis/V.32/V.23/V.22bis/V.22/Bell212A/V.21/Bell 103 . Hardware/Software Flo[...]

  • Page 25

    User's Guide for ZyXEL Omni 56K USB Modem 3-5 Table 6. Physical Layer Capacity STANDARD BIT RATE [ bps] BAUD RATE [baud] MODULATION CARRIER FREQUENCY [Hz] V.90 28000-56000 8000 PCM 0 V.34 2400-33600 multiple TCM multiple V.32bis 14400 2400 128-TCM 1800 V.32bis 12000 2400 64-TCM 1800 V.32bis 9600 2400 1800 V.32bis 7200 2400 16-TCM 1800 V.32bis [...]

  • Page 26

    User's Guide for ZyXEL Omni 56K USB Modem 3-6 Software XON/XOFF Flow Control This is a bi-directional flow control. XON and XOFF (flow control protocols for asynchronous communication) character defaults are decimals 17 and 19.These can be changed by modifying the S-Registers S31 and S32.Both the modem and the DTE treats XOFF as a signal to st[...]

  • Page 27

    User's Guide for ZyXEL Omni 56K USB Modem 3-7 Cyclic Dial Dial the number stored in EEPROM at location n (0 to 3) if cyclic dial s44.3=1 is set. If the first dial is not successful, the modem cycles dial through the four numbers stored in memory. Caller Number Delivery (Caller ID ) Caller Number Delivery (CND), commonly called Caller ID , is a[...]

  • Page 28

    User's Guide for ZyXEL Omni 56K USB Modem 3-8 In single message format, the modem sends a ring message to the terminal as follows: RING TIME: <MM-DD hh :mm > CALLER NUMBER: <CALLER_ID> or CALLER NAME :<CALLER_NM> RING MM is the two-digit month message, DD is the two-digit date message, hh is the hour and mm is the minute of t[...]

  • Page 29

    User's Guide for ZyXEL Omni 56K USB Modem 3-9 Here is an example: RING TIME: 04-28 12:30 CALLER NUMBER: 7135551414 CALLER NAME: Tracy Huang RING If the caller number and name are not available, the ring message appears as follows: RING TIME: 04-28 12:30 REASON FOR NO NUMBER: OUT_OF_AREA REASON FOR NO NAME: PRIVACY RING The last CND message tha[...]

  • Page 30

    User's Guide for ZyXEL Omni 56K USB Modem 3-10 Distinctive Ring Distinctive Ring is a phone service that may be offered by your phone company. Check your phone company for availability. With this service, you can have several phone numbers assigned to the same phone line. The phone company sends a different type of ring signal for each phone n[...]

  • Page 31

    User's Guide for ZyXEL Omni 56K USB Modem 3-11 3.3.2 Security Function The Omni modem provides a security function, that (when enabled) prevents an unauthorized user from making a connection. Two types of security function are provided. Type 1 security is used when the remote modem is also a ZyXEL modem; type 2 security is used when the remote[...]

  • Page 32

    User's Guide for ZyXEL Omni 56K USB Modem 3-12 Enter the original password and a new password and then to re-enter the new password for verification. For example: PASSWORD (Enter supervisor password) ******** PASSWORD (Enter new supervisor password) ******** Verify (Enter the new supervisor password again) ******** OK The command AT*Hn modif i[...]

  • Page 33

    User's Guide for ZyXEL Omni 56K USB Modem 3-13 3.3.3 Fax Function Fax Physical Layer Protocol Table 8. Fax Physical Layer Capacity STANDARD BIT RATE [ bps] BAUD RATE [baud] MODULATION CARRIER FREQUENCY [Hz] V.17 14400-7200 2400 TCM 1800 V.29 9600-4800 2400 QAM/DPSK 1700 V.27ter 4800-2400 1600/1200 PSK/DPSK 1800 EIA (Electronic Industries Assoc[...]

  • Page 34

    User's Guide for ZyXEL Omni 56K USB Modem 3-14 4-bit Voice Data Compression The main issue in the digitized voice mode is the amount of storage required. A relatively simple ADPCM algorithm can reduce the speech data rate to half the rate and maintain about the same voice quality. This algorithm can also be used to reduce the speech data rate [...]

  • Page 35

    User's Guide for ZyXEL Omni 56K USB Modem 4-1 Chapter 4 Result Codes 4.1 Result Codes The result code is the command response or the Connect message to the DTE. The format of the result code is dependent on Xn and Vn command. The lists are as follows: Table 9. Result Codes Result Code for ATV0 ATV1 X0 X1 X2 X3 X4 X5 X6 X7 0 OK 00000000 1 CONNE[...]

  • Page 36

    User's Guide for ZyXEL Omni 56K USB Modem 4-2 Result Code for ATV0 ATV1 X0 X1 X2 X3 X4 X5 X6 X7 16 CONNECT 12000 0000 XXX 17 CONNECT 14400 0000 XXX 18 CONNECT 16800 0000 XXX 19 CONNECT 38400 0000 X 20 CONNECT 57600 0000 X 21 CONNECT 76800 0000 X 22 CONNECT 115200 0000 X 23 CONNECT 230400 0000 X 24 CONNECT 460800 0000 X 25 CONNECT 921600 0000 X[...]

  • Page 37

    User's Guide for ZyXEL Omni 56K USB Modem 4-3 Result Code for ATV0 ATV1 X0 X1 X2 X3 X4 X5 X6 X7 104 CONNECT 50666 0000 XXX 105 CONNECT 49333 0000 XXX 106 CONNECT 48000 0000 XXX 107 CONNECT 46666 0000 XXX 108 CONNECT 45333 0000 XXX 109 CONNECT 44000 0000 XXX 110 CONNECT 42666 0000 XXX 111 CONNECT 41333 0000 XXX 112 CONNECT 40000 0000 XXX 113 CO[...]

  • Page 38

    User's Guide for ZyXEL Omni 56K USB Modem 4-4 X4: CARRIER Rx Rate. PROTOCOL: Error Control Level COMPRESSION: Compression Level CONNECT DTE Speed X5: CONNECT DTE Speed / Protocol Rx Rate / Error Control Level X6: CONNECT Rx Rate / ARQ X7: CONNECT Rx Rate / ARQ / Error Control Level Where ARQ denotes that A utomatic R etransmission re Q uest ty[...]

  • Page 39

    User's Guide for ZyXEL Omni 56K USB Modem 5-1 Chapter 5 Command Sets This chapter lists the command set Omni 56K USB supports. These commands include data command sets, fax command sets and voice command sets. 5.1 Data Command Sets 5.1.1 Basic A T Command Sets Table 10. Basic AT Command Sets COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. A/ Re-[...]

  • Page 40

    User's Guide for ZyXEL Omni 56K USB Modem 5-2 COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. B0 * Select CCITT V.22 for 1200 bps. B1 Select Bell 212 for 1200 bps communication. D s Dial s (numbers and options) that follow (see also S38.0, S35.4). The options of s are listed as follows: 0-9, A, B, C, D #, * Digits for dialing. P Pulse dialing S2[...]

  • Page 41

    User's Guide for ZyXEL Omni 56K USB Modem 5-3 COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. L n n=0 to 7 4 * Speaker volume control. The higher the value, the higher the volume. S24.4-6 M n Speaker control: S21.1-2 M0 Speaker is always OFF. M1 * Speaker is ON until carrier is detected. M2 Speaker is always ON. M3 Speaker is ON after the last d[...]

  • Page 42

    User's Guide for ZyXEL Omni 56K USB Modem 5-4 5.1.2 Extended A T& Command Sets Table 12. Extended AT& Command Set COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. & Bn Data rate, terminal-to-modem (DTE/DCE): S28.6 &B0 DTE rate follows connection rate. (See also S44.6). &B1 * DTE (data terminal equipment)/DCE (data circuit-term[...]

  • Page 43

    User's Guide for ZyXEL Omni 56K USB Modem 5-5 COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. &K2 MNP4+MNP5 (See also S38.5, S41.0). &K3 V.42+MNP4. &K4 * V.42+V.42bis, compatible with &K2 (See also S38.5). & Nn Modem link mode options (DCE/DCE). (See also S43.7, S48.1): S19 &N0 * Multi-Auto, auto - negotiate highest possi[...]

  • Page 44

    User's Guide for ZyXEL Omni 56K USB Modem 5-6 COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. &N98 V.90 29333 &N97 V.90 30666 &N96 V.90 32000 &N95 V.90 33333 &N94 V.90 34666 &N93 V.90 36000 &N92 V.90 37333 &N91 V.90 38666 &N90 V.90 40000 &N89 V.90 41333 &N88 V.90 42666 &N87 V.90 44000 &N86 V.90[...]

  • Page 45

    User's Guide for ZyXEL Omni 56K USB Modem 5-7 COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. &T5 Deny Remote Digital Loop-back request from remote modem. S14.1 &T6 Initiate Remote Digital Loop-back (RDL) test. &T7 Initiate Remote Digital Loop-back with self-test. (RDL+ST) &T8 Initiate Analog Loop-back with self-test. (ALB+ST) &a[...]

  • Page 46

    User's Guide for ZyXEL Omni 56K USB Modem 5-8 5.1.3 Extended A T* Command Sets Table 13. Extended AT* Command Sets COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. * Cn Character length, including start, stop and parity bit: S15.3-4 *C0 * 10-bit character length. *C1 11-bit character length. *C2 9-bit character length. *C3 8-bit character length.[...]

  • Page 47

    User's Guide for ZyXEL Omni 56K USB Modem 5-9 COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. N OTE : 1. The command * Gn requests supervisor password checking. 2. In security type 1, the remote site must be a ZyXEL modem. 3. In security type 2, the remote site can be any other type of modem. 4. The modem can store 4 (0 to 3) telephone numbers. [...]

  • Page 48

    User's Guide for ZyXEL Omni 56K USB Modem 5-10 5.1.4 Extended A T# Command Sets Table 14. Extended AT# Command Sets COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref. #En Modem status in escape state: #E0 Disable the report of modem status in escape state. #E1 Enable the report of modem status in escape state.[...]

  • Page 49

    User's Guide for ZyXEL Omni 56K USB Modem 5-11 5.2 Fax Command Sets 5.2.1 Service Class 1 Commands Table 15. Service Class 1 Commands COMMAND DESCRIPTION VALUE + FCLASS=n Service Class Identification and Control n=0: Sets to modem mode n=1: Sets to Class 1 mode n=2.0: Sets to Class 2.0 mode n=8: Sets to Voice mode + FTS=n Stop transmission and[...]

  • Page 50

    User's Guide for ZyXEL Omni 56K USB Modem 5-12 5.2.2 Service Class 2 Commands The following Class 2 commands are supported and implemented as per TIA (Telecommunications Industry Association) PN2388 (dated 8/20/1990): Table 17. Command Syntax COMMAND SYNTAX DESCRIPTION +<command>=<value> Execute a command or set a parameter. +< [...]

  • Page 51

    User's Guide for ZyXEL Omni 56K USB Modem 5-13 COMMAND DESCRIPTION VALUE Bit rate: 12000 bit/s ; V.17. br=4 Bit rate: 14400 bit/s ; V.17. br=5 Page width: 1728 pixels in 215mm. wd=0 Page width: 2048 pixels in 255mm. wd=1 Page width: 2432 pixels in 303mm. wd=2 Page length: A4 ; 297mm. ln=0 Page length: B4 ; 364mm. ln=1 Page length: unlimited le[...]

  • Page 52

    User's Guide for ZyXEL Omni 56K USB Modem 5-14 COMMAND DESCRIPTION VALUE Minimum phase C speed parameter: 2400 bps. n=0 4800 bps. n=1 7200 bps. n=2 9600 bps. n=3 12000 bps. n=4 + FMINSP= n 14400 bps. n=5 +FPHCTO= <value> DTE Phase C response time-out: Determine how long the DCE waits for a command after reaching the end of data when tran[...]

  • Page 53

    User's Guide for ZyXEL Omni 56K USB Modem 5-15 RESPONSE VALUE FUNCTION AND DESCRIPTION n=00 Normal and proper end of connection. n=10 Transmit error on phase A hang up code. n=20 Transmit error on phase B hang up code. n=40 Transmit error on phase C hang up code. n=50 Transmit error on phase D hang up code. n=70 Receive error on phase B hang u[...]

  • Page 54

    User's Guide for ZyXEL Omni 56K USB Modem 5-16 5.2.3 Service Class 2.0 Commands Table 20. Service Class 2.0 Commands COMMAND DESCRIPTION VALUE +FDT Transmit phase C data command: releases the DCE to proceed with the negotiation. +FDR Receive phase C data command: initiates document reception. +FKS Terminate a Session, orderly fax abort. +FIP I[...]

  • Page 55

    User's Guide for ZyXEL Omni 56K USB Modem 5-17 Minimum Scan Time/Line st=0:0 ms st=1:5 ms st=2:10 ms (normal); 5 ms (fine) st=3:10 ms st=4:20 ms (normal); 10 ms (fine) st=5:20 ms st=6:40 ms (normal); 20 ms (fine) st=7:40 ms + FIS=vr, br, wd, ln, df, ec, bf, st Current Session Negotiating Parameters Same as above. + FCS=vr, br, wd, ln, df, ec, [...]

  • Page 56

    User's Guide for ZyXEL Omni 56K USB Modem 5-18 requested. n=4:Page is bad; procedure interrupt is requested. n=5:Page is good; procedure interrupt is requested. + FLO=n Flow Control Select n=0:No flow control n=1:Sets XON/XOFF software flow control n=2:Sets CTS/RTS hardware flow control + FPR=n Serial Port Rate Control n=0:Automatic DTE rate d[...]

  • Page 57

    User's Guide for ZyXEL Omni 56K USB Modem 5-19 n=3:9600 bps n=4:12000 bps n=5:14400 bps +FBS? Buffer Size 512, 256 5.2.4 Voice A T Commands Table 21. Voice AT Commands COMMAND FUNCTION OPTION DEFAULT DESCRIPTION +FLO Flow control select 0, 1, 2 2 0: No flow control. 1: (XON/XOFF) Software flow control. 2: (RTS/CTS) Hardware flow control. +VIP [...]

  • Page 58

    User's Guide for ZyXEL Omni 56K USB Modem 5-20 +VLS Select a voice I/O device 0, 1, 2 0 0: The DCE is on - hook. Local phone connected to Telco line. 1: The DCE is on-hook and is connected to the local phone. The local phone is also provided with power. The modem can record/play through the local phone set. 2: The DCE is off-hook and is connec[...]

  • Page 59

    User's Guide for ZyXEL Omni 56K USB Modem 5-21 +VTD Set default duration of DTMF tone 1 to 255 100 Unit: 0.01 second. +VIT Inactivity timer 0 to 255 70 Unit: 0.1 second. 5.2.5 Voice Shielded DTE Commands Table 22. Voice Shielded DTE Commands COMMAND DESCRIPTION <DLE>p Pause: suspend voice data to the output device in playback state. <[...]

  • Page 60

    User's Guide for ZyXEL Omni 56K USB Modem 5-22 5.3 S-Register Descriptions In most bit-mapped S-register s, the default bit value is 0. Non-0 default values are followed by an asterisk. In some cases, default values are shown in the reference column preceded by +. Some bits are reserved for factory use and should not be changed. 5.3.1 Basic S-[...]

  • Page 61

    User's Guide for ZyXEL Omni 56K USB Modem 5-23 COMMAND Bit dec hex FUNCTION AND DESCRIPTION Ref. stands for ZyXEL connection). S14= bit dec hex Bit-mapped register: +002 1 0 0 Grant Remote Digital Loop-back test request. &T4 2 2 Deny Remote Digital Loop-back test request. &T5* S15= bit dec hex Bit-mapped register. +066 0, 1 0 0 Even pa[...]

  • Page 62

    User's Guide for ZyXEL Omni 56K USB Modem 5-24 COMMAND Bit dec hex FUNCTION AND DESCRIPTION Ref. 2 2 76800 bps 3 3 57600 bps 4 4 38400 bps 5 5 19200 bps 6 6 16800 bps 7 7 14400 bps 8 8 12000 bps 9 9 9600 bps 10 A 7200 bps 11 B 4800 bps 12 C 2400 bps 13 D 1200 bps 14 E 460800 bps 15 F 300 bps 16 10 307200 bps 17 11 153600 bps 18 12 102400 bps 2[...]

  • Page 63

    User's Guide for ZyXEL Omni 56K USB Modem 5-25 COMMAND Bit dec hex FUNCTION AND DESCRIPTION Ref. 3 0 0 DSR is always ON. (Default) &S0 8 8 According to CCITT. (See also S44.4, S41.5). &S1 4 0 0 CD is always ON. &C0 16 10 CD tracks presence of data carrier. (See also S38.3) (Default) &C1 5 0 0 CTS follows RTS in synchronous mode[...]

  • Page 64

    User's Guide for ZyXEL Omni 56K USB Modem 5-26 S25= 0 to 255 0-FF Specify the time delay that DTR signal needs to be OFF before it is recognized, in 10 ms units. If S25=0, the delay time is set to 4 ms. +000 S26= dec hex RTS/CTS delay. +000 0 to 255 0-FF Set the delay, in 10 millisecond units between the RTS and modem’s CTS response in synch[...]

  • Page 65

    User's Guide for ZyXEL Omni 56K USB Modem 5-27 1 2 2 Disable aborting from terminal during modem handshaking. 3 8 8 Add 16dB attenuation to the leased line transmission power. 5 32 20 Enable Selective Reject in V.42. (Default) 7 128 80 Enable extended numerical result codes from 50 to 65 when an error corrected connection is made. Use with ATV[...]

  • Page 66

    User's Guide for ZyXEL Omni 56K USB Modem 5-28 on-off transition. 6 64 40 Force S0>=2; does not answer on the first ring. S0 7 128 80 Ignore calling tone, not to be used as fax detection. S42= Bit dec hex Bit-mapped register. +000 1 2 2 Enables throughput averaging. 2 4 4 CND message forces on even if ATQ2 is set. 3 8 8 Disable escape seque[...]

  • Page 67

    User's Guide for ZyXEL Omni 56K USB Modem 5-29 causes the modem to hang-up and reset to profile 0. When the modem is idle (waiting for command), it does not dial any number when DTR changes from ON to OFF. S52= Bit dec hex Bit-mapped register. +000 7 0 0 Select ‘Mark’ as the first signal of the V.23 handshaking sequence. (Default) &N12[...]

  • Page 68

    [...]

  • Page 69

    User's Guide for ZyXEL Omni 56K USB Modem 6-1 Chapter 6 Firmware Upgrade The ZyXEL Omni 56K USB pr ovides a firmware upgrade function either by upgrad ing the software provided in the CD-ROM disc that c a me with your modem package, or by using a terminal program such as Bitware or Hyperterminal . To obtain the latest firmware version, please [...]

  • Page 70

    User's Guide for ZyXEL Omni 56K USB Modem 6-2 6.1.2 Upgrading by Using a Terminal Program To upgrade the firmware by using a terminal program, such as Bitware or HyperTerminal in Windows®, perform the following instructions. For more information on installing Bitware on your computer, please refer to the Read Me First that came with your mode[...]

  • Page 71

    User's Guide for ZyXEL Omni 56K USB Modem A Glossary Analog An electrical circuit that is represented by means of continuous, variable physical quantities (such as voltages and frequencies), as opposed to discrete representations (like the 0/1, off/on representation of digital circuits). Analog Loopback Test Testing method in which the modem?[...]

  • Page 72

    User's Guide for ZyXEL Omni 56K USB Modem B CDR Call Detail Record. This is a name used by telephone companies for call-related information. Cipher Text Text that has been scrambled or encrypted so that it cannot be read without deciphering it. See Encryption. Class 2 A standard for fax transfers using a fax modem. Currently several drafts exi[...]

  • Page 73

    User's Guide for ZyXEL Omni 56K USB Modem C decisive for the quality and the speed of a modem's transfer capabilities. DCD Data Carrier Detected – a control signal line of the RS-232C interface. DCE Data Communications Equipment is typically a modem or other type of communication device. The DCE sits between the DTE (data terminal equip[...]

  • Page 74

    User's Guide for ZyXEL Omni 56K USB Modem D lines with some combination of asynchronous transfer mode (ATM), frame relay, or IP networks. DSR Data Set Ready – a control signal line of the RS-232C standard. DTE Originally, the DTE (data terminal equipment) meant a dumb terminal or printer, but today it is a computer, or a bridge or router tha[...]

  • Page 75

    User's Guide for ZyXEL Omni 56K USB Modem E FCC The FCC (Federal Communications Commission) is in charge of allocating the electromagnetic spectrum and thus the bandwidth of various communication systems. FIFO-Buffer First-in-first-out buffer. A buffer of this type is used in the 16550 type UARTs that allow higher data throughput rates on PCs.[...]

  • Page 76

    User's Guide for ZyXEL Omni 56K USB Modem F now (July 1995) connects roughly 60,000 independent networks into a vast global internet. Interrupt In a computer, some tasks must be performed regularly and without delay. This is possible because the CPUs provide special interrupt vectors. These vectors each point to some short program sequence. An[...]

  • Page 77

    User's Guide for ZyXEL Omni 56K USB Modem G LINE The jack on the rear panel which is connected to the wall phone outlet. Linux A version of the UNIX operating system designed to run on IBM compatible computers. Logic Bomb A virus that only activates itself when certain conditions are met. Logic bombs usually damage files or cause other serious[...]

  • Page 78

    User's Guide for ZyXEL Omni 56K USB Modem H Parity Bit The parity bit is sent as additional information with the data bits in asynchronous transfers. It controls the integrity of the transferred data. If parity is even, the parity bit is set if an uneven number of data bit is sent in the character, resulting in an even number of set bits. Pass[...]

  • Page 79

    User's Guide for ZyXEL Omni 56K USB Modem I Protocol A “language” for communicating on a network. Protocols are sets of standards or rules used to define, format, and transmit data across a network. There are many different protocols used on networks. For example, most web pages are transmitted using the HTTP protocol. Proxy Server A serve[...]

  • Page 80

    User's Guide for ZyXEL Omni 56K USB Modem J RTS/CTS See CTS/RTS . RXD Line for the received data on a serial port following RS-232C. Server A computer, or a software package, that provides a specific kind of service to client software running on other computers. Security Function Features of the ZyXEL modems that help deny illegitimate contact[...]

  • Page 81

    User's Guide for ZyXEL Omni 56K USB Modem K Switched 56 Digital service at 56 Kbps provided by local telephone companies and long distance carriers. Similar to ISDN, Switched 56 traffic can travel over the same physical infrastructure that supports ISDN. Switched 56, however, is an older technology with decreasing significance. Symbol Speed Sp[...]

  • Page 82

    User's Guide for ZyXEL Omni 56K USB Modem L other programs that software pirates distribute on the Internet. Western Jack Telephone wall outlet connector used in the USA and other countries. WWW (World Wide Web) – Frequently used when referring to "The Internet", WWW has two major meanings – First, loosely used: the whole constel[...]

  • Page 83

    User's Guide for ZyXEL Omni 56K USB Modem M Index 4-bit V oice Data Compression ................... 3-14 Back Panel ................................................. 2-2 Basic A T Command Sets ............................ 5-1 Caller ID ...................................... 3-7, 3-9, 5-9 Caller Number Delivery .............................. 3-[...]