Multitech MT2834BLR manuale d’uso

MT2834BR/MT2834BLR Intelligent Data/Fax Rack Mounted Modem User Guide[...]

MT2834BR/MT2834BLR User Guide PN: S000316 Copyright ©2003 by Multi-Tech Systems, Inc. All rights reserved. This publication may not be reproduced, in whole or in part, without prior written permission from Multi-Tech Systems, Inc. Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and specifically d[...]

Contents Chapter 1 - Introduction ................................................................ 5 1.1 Introduction .............................................................................. 6 1.2 Features ................................................................................... 6 1.3 How to Use This Manual .........................[...]

4.2 S-Registers ............................................................................. 4 8 4.3 Result Codes .......................................................................... 5 2 4.3.1 AT Commands and S-Register Summary ................ 5 5 Chapter 5 - Modem Testing ........................................................ 56 5.1 Loca[...]

Chapter 1 - Introduction[...]

6 Chapter 1 - Introduction 1.1 Introduction Welcome to the world of data communications. You have acquired one of the finest intelligent data/fax modems available today, either the model MT2834BR or MT2834BLR (MT2834), from Multi-Tech Systems. Your MT2834 modem provides data communication at 33,600-14,400 bps (*Enhanced V.34/V.32bis), as well as ot[...]

· Automatic disabling of compression when transferring already- compressed files. · Serial port data rates adjustable to 115.2K bps. · Autodial, redial, pulse (rotary) and touch-tone dial. · Dial tone and busy signal detection for reliable call-progress detection. · Compatibility with the standard AT command set used by most communication prog[...]

Chapter 2 - Inst allation[...]

9 Chapter 2 - Installation 2.1 Preliminaries This chapter covers MT2834 installation and connection. In addition to the contents of the MT2834 package, you will need the equipment listed below. 2.1.1 Card Cage The MT2834 is designed to mount in the Multi-Tech Systems' modem rack (see Section 2.2 for various models available). This rack is an E[...]

10 Chapter 2 - Installation 2.2 Installation Perform the following procedure to install modem cards in the CC916, CC1416, CC2816 or CC1600 racks*. The installation process involves: 1. Power cord must be unplugged prior to installation of the Power Source(s). Insert Power Source(s) (PS216A or PS1600) into far right of the rack cage. 2. Slide a mode[...]

11 Chapter 2 - Installation 9. Set both local and remote modems to either Normal ( &E0&W0 ) mode or to Reliable ( &E2&W0 ) mode. 10. Verify leased line transmit level (DIP-Switch #3) setting (Section 2.3.1). 11. Proceed to Chapter 3 of this manual, or to your data communications software manual. * All Multi-Tech rack-mounted modem c[...]

12 Chapter 2 - Installation The sixteen DIP-Switches and two berg jumpers control various modem options or set default values for the MT2834 Command mode. There is a difference in how several of the switches operate depending on whether you are in synchronous or asynchronous mode (DIP-Switch #12). Most communications software packages have installa[...]

13 Chapter 2 - Installation Switch Function Position Effect #5 Answer/Originate* UP* Originate call in (Async/Sync/Leased Line) DOWN Lease Line mode #6 Max-Throughput Enabled* UP* Modem set-up to (Async/Dial-Up/Leased) DOWN operate at highest efficiency level #6 Slave Clock Disabled* UP* Clock controlled (Sync/Dial-Up/Leased) DOWN by remote device [...]

14 Chapter 2 - Installation Dip Switch Settings #13 - 16 Note: A modem baud rate command (e.g., $MB33600 ) overrides the setting of the speed selection switches (#13 and #14). Switch Position Effect 13/14 UP/UP* 28.8 K bps Operation (Default) 13/14 DOWN/UP 19.2 K bps Operation 13/14 UP/DOWN 14.4 K bps Operation 13/14 DOWN/DOWN 9600 bps Operation #1[...]

15 Chapter 2 - Installation 2.4.1 Out of Service/Test Jumper When the MT2834 is Out Of Service ( OOS ), it is busy to incoming calls. In the Test (default) setting, the modem drives pin 25 high when the modem is in Test mode. In the OOS (optional) setting, the computer or terminal forces pin 25 high and puts the modem in a busy condition. Note that[...]

16 Chapter 2 - Installation 2.5 Dial-Up and Leased Lines Connection to the phone system is made via RJ11 type jacks such as an RJ11C or RJ11W. It can also be connected to an RJ41 or an RJ45S jack, but would not use these jack's dB-level programming features. The MT2834 is designed to transmit at a permissive level of -11dB. To connect the mode[...]

17 Chapter 2 - Installation 2.6 Modem LED Indicators The MT2834 has ten LED diagnostic indicators. 1. Receive Data ( RCV ). This LED blinks when data is being received, on for a space, off for a mark. The state of this RCV LED matches that of the RCV circuit on Pin 3 of the RS232C/V.24 interface. 2. Transmit Data ( XMT ). This LED blinks when data [...]

18 Chapter 2 - Installation 10. Error ( ERR ). When the ERR LED is flashing, the leased line is down and the modem is in self-test mode has failed. When ERR LED is on, this indicates the modem is in an out of service ( OOS ) state. When the modem is out of service, it is busy to incoming calls. NOTE: To verify Enhanced V.34 mode is engaged: 1. Type[...]

Chapter 3 - Inst allation[...]

20 Chapter 3 - Configuration 3.1 Introduction Since your communications software configuration is affected by the capabilities of your computer, this chapter begins with a discussion of the limitations of some serial ports and how to identify them. It then discusses communications configuration in general and recommends settings specifically for th[...]

21 Chapter 3 - Configuration compromised by other serial communications, including printer transmissions and Appletalk, the networking software that allows Macintoshes to share files. When Appletalk is active it controls all serial communications on the Macintosh. Because it gives priority to network communications, it may lose modem data at higher[...]

22 Chapter 3 - Configuration Figure 3-1. MSD UART Identification, Screen 1 Figure 3-2. MSD UART Identification, Screen 2[...]

23 Chapter 3 - Configuration 3.3 Configuring Your Software Communications software must be configured to work with your modem, your computer, and the remote system it is calling. Fortunately, most communications programs make the process easy by providing a default initialization string for your modem as well as defaults for most of the other requi[...]

24 Chapter 3 - Configuration 3.4 PC Initialization Strings We recommend the following initialization string for a MT2834 connected to a PC-compatible computer: AT &F X4 S0=0 ^M This string resets the MT2834 to the factory default settings, selects extended result codes with NO DIAL TONE and BUSY, and turns off auto- answer. ^M must end every st[...]

25 Chapter 3 - Configuration Figure 3-2. The MEW Modem Initialization Setup * Note that the above and following set up screens are examples found in MultiExpress for Windows ( MEW ), and that other 3rd party data communication software is similar but different.[...]

26 Chapter 3 - Configuration 3.4.1 Changing Default Parameters The default values for the other parameters in modem configuration menus rarely need changing. They typically include the dialing prefix ( ATDT for touch-tone service and ATDP for rotary service), the dialing suffix ( ^M ), the hang-up string ( +++ATH0^M ), and response messages ( RING,[...]

27 Chapter 3 - Configuration 3.6 Configuring Software for Your Computer Configure the communications software to match the computer’s configuration. If the MT2834 is connected to the COM2 serial port, select "COM2" under the Device drop-down menu. Select the appropriate serial port baud rate. This is the speed the modem communicates wit[...]

28 Chapter 3 - Configuration 3.6.1 Configuring Software for the Remote System You must meet the requirements of the remote system for successful communications. Though the MT2834 can automatically synchronize with the speed of the other modem, you must specify parameters such as type of flow control, break length, number of data bits, number of sto[...]

29 Chapter 3 - Configuration 3.6.3 File Transfer Protocols When you upload or download files with your modem, the host computer will ask which file transfer protocol you want to use. Most communications programs allow you to choose a default protocol. Your software’s documentation should list the ones it can use (not all communications programs s[...]

30 Chapter 3 - Configuration The command to disable compression is AT &E14 <CR> . If you have an older UART or if you use your modem mostly for downloading long, compressed files from BBSs, you may want to include the &E14 command in your initialization string as follows: AT &F S0=0 X4 &E14 ^M As a general rule, you should try[...]

Chapter 4 - Modem Commands[...]

32 Chapter 4 - Commands 4.1 Modem AT Commands AT commands are the means by which you, and your communications software, are able to communicate with and configure your modem. They enable you to establish, read, and modify parameters in addition to dialing. The following provides a summary and brief explanation of the AT commands recognized by the M[...]

33 Chapter 4 - Commands COMMAND: $An VALUES: n = 0 or 1 DEFAULT: $A0 DESCRIPTION: $A0 discards data during auto-reliable time period. $A1 buffers data during auto-reliable time period. COMMAND: #An VALUES: n = 0 thru 3 DEFAULT: #A0 DESCRIPTION: #A0 selects initial handshake at 33600 to 31200 to 28800 to 24000 to 21600 to 19200 to 16800 to 14400 to [...]

34 Chapter 4 - Commands VALUES: n = 0, 1, 2 or 4 DEFAULT: &C1 DESCRIPTION: &C0 forces Carrier Detect on. &C1 lets Carrier Detect act normally. &C2 lets Carrier Detect drop S24 time on disconnect. &C4 resets modem when Carrier Detect drops. COMMAND: &CDn VALUES: n = 0 or 1 DEFAULT: &CD0 DESCRIPTION: &CD0 execute clear[...]

35 Chapter 4 - Commands VALUES: n = 0 or 1 DEFAULT: %DP0 DESCRIPTION: %DP0 selects do not read Line Probe Information from DSP during handshaking. %DP1 selects read Line Probe Information from DSP during handshaking. COMMAND: En VALUES: n = 0 or 1 DEFAULT: E1 DESCRIPTION: E0 selects do not echo Command mode characters. E1 selects do echo Command mo[...]

36 Chapter 4 - Commands VALUES: n = 0 thru 2 DEFAULT: #F2 DESCRIPTION: #F0 means no fallback when on-line. #F1 means fallback from 33600 to 4800 bps when on-line (increments of 2400 bps). #F2 means fallback to 4800 bps from 33.6K bps/fall forward if line improves (increments of 2400 bps). COMMAND: &Fn VALUES: n = 0, 8 or 9 DEFAULT: &F8 DESC[...]

37 Chapter 4 - Commands VALUES: n = 1 thru 3 DEFAULT: Read Only Command DESCRIPTION: $H1 brings up Help Screen #1. $H2 brings up Help Screen #2. $H3 brings up Help Screen #3. COMMAND: In VALUES: n = 0,1or 2 DEFAULT: Read Only Command DESCRIPTION I0 requests modem ID #. I1 requests firmware revision #. I2 for MTS internal use. COMMAND: I9 VALUES: N/[...]

38 Chapter 4 - Commands VALUES: n = speed DEFAULT: $MB33600 bps DESCRIPTION: $MB75 selects CCITT V.23 mode. $MB300 selects 300 bps on-line. $MB1200 selects 1200 bps on-line. $MB2400 selects 2400 bps on-line. $MB4800 selects 4800 bps on-line. $MB9600 selects 9600 bps on-line. $MB14400 selects 14400 bps on-line. $MB19200 selects 19200 bps on-line. $M[...]

39 Chapter 4 - Commands VALUES: n = 0, 1 or 2 DEFAULT: Q0 DESCRIPTION: Q0 selects Result Codes displayed. Q1 selects Result Codes suppressed (quiet). Q2 selects Dumb Answer Mode. COMMAND: &Qn VALUES: n = 0 or 1 DEFAULT: &Q0 DESCRIPTION: &Q0 selects Multi-Tech command set. &Q1 selects AT command set. COMMAND: Rn VALUES: n = 0 or 1 DE[...]

40 Chapter 4 - Commands VALUES: r = 0-11, 13, 15-17, 24-26, 29, 30, 32, 34, 36, 37, 48 DEFAULT: n/a DESCRIPTION: Reads value of S-Register “r” and displays value in 3- digit decimal format. COMMAND: $SBn VALUES: n = speed DEFAULT: $SB115200 bps DESCRIPTION: $SB300 selects 300 bps at serial port. $SB1200 selects 1200 bps at serial port. $SB2400 [...]

41 Chapter 4 - Commands VALUES: n = 4 or 5 DEFAULT: &T5 DESCRIPTION: &T4 selects Enable Response to Request for Remote Digital Loopback. &T5 selects Disable Response to Request for Remote Digital Loopback. COMMAND: #Tn VALUES: n = 0 or 1 DEFAULT: #T1 DESCRIPTION: #T0 turns off Trellis Coded Modulation #T1 turns on Trellis Coded Modulati[...]

42 Chapter 4 - Commands DEFAULT: X0 DESCRIPTION: X0 selects Basic Result Codes (w/o CONNECT 1200, CONNECT 2400). X1 selects Extended Result Codes (w/CONNECT 1200, CONNECT 2400). X2 selects Standard AT Command set with NO DIAL TONE. X3 selects Standard AT Command set with BUSY. X4 selects Standard AT Command set with NO DIAL TONE and BUSY. COMMAND: [...]

43 Chapter 4 - Commands DEFAULT: n/a DESCRIPTION: Causes modem to wait for ringback, then 5 seconds of silence before processing next part of command. COMMAND: +++AT<CR> VALUES: n/a DEFAULT: n/a DESCRIPTION: In-band Escape Sequence. Places modem in Command mode while still remaining On-Line. Enter +++ followed by the letters A and T, up to te[...]

44 Chapter 4 - Commands DEFAULT: n/a DESCRIPTION: Callback password with xxxxxx being callback password and yy being the memory location. Callback password xxxxxx must start with a non-numeric character and upper/ lower case sensitive. Callback password xxxxxx must be a mini mum of 6 and maximum of 10 characters. yy memory locations are from 0 to 2[...]

45 Chapter 4 - Commands 4.1.2 Remote Configuration The Remote Configuration feature is a network management tool that allows you to configure modems remotely. This means you could configure modems anywhere in your network from one location without having to visit the sites or rely on remote users to follow your instructions. With Remote Configurati[...]

46 Chapter 4 - Commands You can now use any AT commands of the modem being remotely configured as if they were being entered locally. You cannot change the Set-up of the LOGIN Password until you enter the proper LOGIN Password. 4. When you are done entering AT commands and you want to exit, type AT0 and hit RETURN . The modem responds with: 1. DATA[...]

47 Chapter 4 - Commands COMMAND: CSPs VALUES: n/a DEFAULT: n/a DESCRIPTION: The CSP command will change the serial baud rate of your modem by entering CSPsssss where sssss can equal: CSP0300 - 300 bps CSP1200 - 1200 bps CSP2400 - 2400 bps CSP4800 - 4800 bps CSP9600 - 9600 bps CSP19200 - 19200 bps CSP38400 - 38400 bps CSP57600 - 57600 bps CSP115200 [...]

48 Chapter 4 - Commands 4.2 S-Registers Certain Command Mode configurations are stored in memory registers called, S-Registers. The S command is used to assign a value to, and to read the current value of an S-Register. To assign a value to an S-Register, enter the letter S, followed by the S- Register number and an equals sign (=), and then a deci[...]

49 Chapter 4 - Commands S4 Line Feed Character Unit: ASCII Character Range: 0-127 Default: 10 Description: Defines the character recognized as LINE FEED. S5 Backspace Character Unit: ASCII Character Range: 0-127 Default: 8 Description: Defines the character recognized as BACKSPACE. S6 Wait Time for Dial Tone Unit: 1 second Range: 2-255, 4-255** Def[...]

50 Chapter 4 - Commands S10 Carrier Loss Disconnect Delay Time Unit: 100 mSec. Range: 0-255 Default: 7 Description: Sets the time a carrier signal must be lost before the modem disconnects. S11 Tone Dialing: Tone Spacing and Duration Unit: 1 mSec. Range: 1-255, 80-255* Default: 70, 80* Description: Sets the time duration of spacing between tone in [...]

51 Chapter 4 - Commands S25 DTR Dropout Time Unit: 100 mSec. Range: 0, 1 through 255 Default: 0 Description: Defines DTR dropout time. 0 default equals 50ms. S26 Failed Password Attempts Unit: 1 failed attempt Range: 0-255 Default: 0 Description: Counts the number of times there has been a failed password attempt. S29 Local Inactivity Timer Unit: m[...]

52 Chapter 4 - Commands S36 Time Between DTR Inactive and Modem Off-Hook Unit: 1 Second Range: 0-255 seconds Default: 0 Description: Sets the time between DTR inactive (low) and the modem going off-hook . The DTR Busy-out feature is disabled with S36=0. S37 Time Between DTR Active and Modem On-Hook Unit: 1 Second Range: 0-255 seconds Default: 5 Des[...]

53 Chapter 4 - Commands TERSE VERBOSE 0O K 1 CONNECT 2 RING 3 NO CARRIER 4 ERROR 5 * CONNECT 1200 6 NO DIALTONE 7 BUSY 8 NO ANSWER 9 * CONNECT 2400 11 * CONNECT 4800 12 * CONNECT 9600 13 * CONNECT 14400 19 * CONNECT 19200 21 * CONNECT 21600 24 * CONNECT 24000 26 * CONNECT 26400 28 * CONNECT 28800 31 * CONNECT 31200 33 * CONNECT 33600 * With MNP err[...]

54 Chapter 4 - Commands TERSE VERBOSE 0O K 1 CONNECT 2 RING 3 NO CARRIER 4 ERROR 5 CONNECT 1200 6 NO DIAL TONE 7 BUSY 8 NO ANSWER 10 CONNECT 2400 11 CONNECT 4800 12 CONNECT 9600 13 CONNECT 14400 19 CONNECT 19200 21 CONNECT 21600 24 CONNECT 24000 26 CONNECT 26400 28 CONNECT 28800 31 CONNECT 31200 33 CONNECT 33600 * Error Correction/Data Compressed m[...]

55 Chapter 4 - Commands 4.3.1 AT Commands and S-Register Summary The vast majority of installations are similar, with the MT2834 being used to dial up a remote installation where the call is automatically answered. Your MT2834 has a default configuration to dial another 33,600 bps modem that support error correction, data compression and flow contr[...]

Chapter 5 - Modem T esting[...]

57 Chapter 5 - Testing the Modem 5.1 Local Analog Loopback Test/V.54 Loop 3 In this test, data from your computer or terminal is sent to your modem's transmitter, converted into analog form, looped back to the receiver, converted into digital form and then received back at your monitor for verification. No connection to the phone line is requi[...]

58 Chapter 5 - Testing the Modem ATU1 and hit ENTER to place the modem in Analog Loopback mode, in the Answer mode. Then repeat step 3. 5. When testing is completed, you may exit Answer mode by entering an Escape Sequence ( +++AT<CR> or <BREAK>AT<CR> ), which returns the modem to Command mode. 6. Your modem passes this test if the[...]

59 Chapter 5 - Testing the Modem 2. Dial the remote modem by entering the Dial command and the phone number, to establish On-line mode. 3. Type the Escape Sequence ( +++AT<CR> or <BREAK>AT<CR> ) which brings your modem into Command mode, while still maintaining the pseudo On-line mode with the remote modem. 4. Type ATU3 from the l[...]

60 Chapter 5 - Testing the Modem 5.3 Digital Loopback Test/V.54 Loop 2 (Remote/Automatic) In this test, your modem must be On-line with another modem set up to respond to a request for Digital Loopback. The test is as follows: 1. Enter Terminal mode.Type AT and hit ENTER. An OK message displays. 2. Dial the remote modem by entering the Dial command[...]

61 Chapter 5 - Testing the Modem 5.4 Local Analog Loopback Test (Synchronous Mode) To initiate the Local Analog Loopback Test, with the modem in Synchronous mode: 1. Enter AT&M1U . This first switches your modem from asynchronous to synchronous mode, and places it into the Analog Loopback/Originate mode. The modem is now out of the Command mode[...]

62 Chapter 5 - Testing the Modem 5.5 Digital Loopback Test (Local/Manual) (Synchronous Mode) This test must be run when you have a data connection with another modem. To initiate the Digital Loopback Test (local/manual), DIP-Switch #9 must be in the UP position, then place DIP-Switch #16 in the opposite position it is currently (the modem requires [...]

63 Chapter 5 - Testing the Modem 5.6 Digital Loopback Test (Remote/Automatic) (Synchronous Mode) This test must be run when you have a data connection with another modem. To initiate the Digital Loopback Test (remote/automatic), DIP- Switch #9 must be in the DOWN position, then place DIP-Switch #16 in the opposite position it is currently (the mode[...]

Chapter 6 - W arranty and Service[...]

65 Chapter 6 - Warranty and Service 6.1 Introduction This chapter starts out with statements about your modem's 2-year warranty. The next section, Tech Support, should be read carefully if you have questions or problems with your modem. It includes the technical support telephone numbers, space for recording your modem information, and an expl[...]

66 Chapter 6 - Warranty and Service 6.3 Tech Support Multi-Tech has an excellent staff of technical support personnel available to help you get the most out of your Multi-Tech product. If you have any questions about the operation of this unit, call 1-800-972-2439. Please fill out the modem information (below), and have it available when you call. [...]

67 Chapter 6 - Warranty and Service • check or purchase order number for payment if the modem is out of warranty. (Check with your technical support specialist for current charges.) • if possible, note the name of the technical support specialist with whom you spoke. If you need to inquire about the status of the returned product, be prepared t[...]

68 Chapter 6 - Warranty and Service and select the rate you want to program at. Hit ESC when finished. 5. Highlight the "Select File to Program" option in the MAIN MENU. Highlight the .HEX file. Hit ESC when finished. 6. Highlight "Program Firmware" option in the MAIN MENU. When you are prompted to confirm the file to program, p[...]

69 Chapter 6 - Warranty and Service 6.6 Internet Multi-Tech is a commercial provider on the Internet, and we retrieve e-mail messages from the following mailboxes on a periodic basis: tsupport@multitech.com Technical Support mtsmktg@multitech.com Marketing Dept. mtssales@multitech.com Sales Dept. international@multitech.com International Sales Dept[...]

Chapter 7 - BABT Requirement s[...]

71 Chapter 7 - BABT Requirements 7.1 Compliance with BABT Requirements Approved for connection to telecommunications system specified in the instructions for use subject to the conditions set out in them. Warning: Interconnection directly, or by way of other apparatus, of ports marked "SAFETY WARNING see instructions for use" with ports m[...]

72 Chapter 7 - BABT Requirements 7.1.1 European Low Voltage Directive When correctly installed and maintained, the modem will present no hazard to the user. When correctly installed the modem will be connected to the PSTN or a PW and to a Data Terminal Equipment (DTE), whose modem connections comply with CCITT recommendation V28. The DTE connection[...]

If a telephone or other device is connected in parallel with the modem, the combined REN must not exceed 4. A BT supplied telephone may be assumed to have REN of 1.0 unless otherwise noted. The approval of this modem for connection to the British Telecom public switched telephone network is INVALIDATED if the apparatus is subject to any modificatio[...]

74 Chapter 7 - BABT Requirements 7.1.4 Compliance with BS6328 Part 1 a. The modem is not suitable for use on circuits with British Telecommunications signaling at a normal frequency of 2280 Hz. b. The modem does not require signaling or otherwise employ the frequency range dc to 200 Hz. c. The modem may be connected to a point to point two-wire or [...]

Appendices[...]

76 Appendix A Appendix A FCC Regulations for Telephone Line Interconnection 1. This equipment complies with Part 68 of the Federal Communications Commission (FCC) rules. On the outside surface of this equipment is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN). If requested, this info[...]

77 Appendix A 5. The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the operation of the equipment. If this happens, the telephone company will provide advance notice in order for you to make necessary modifications in order to maintain uninterrupted service. 6. If trouble is experienced[...]

78 Appendix A Canadian Limitations Notice Notice: The ringer equivalence number (REN) assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface. The termination of a interface may consist of any combination of devices subject only to the requirement that the sum of th[...]

79 Appendix B Appendix B Technical Specifications Your MT2834BR/BRL data/fax modem meets the specifications listed below: Model Numbers MT2834BR, MT2834BRI, MT2834BR-MAC Data Rates (modem) 33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400, 1200, 0-300 bps Data Rates (fax) 14400, 9600, 7200, 4800 bps Data F[...]

80 Appendix B Flow Control Xon/Xoff, Hardware RTS/CTS, ENQ/ACK, Options Unix-to-Unix Copy Protocol ( UUCP ) "Spoofing" Mode of Operation Full duplex over both dial-up lines and 2-wire leased lines; automatic or manual dialing, automatic or manual answer Intelligent Features Fully “AT command” compatible, micro- processor controlled re[...]

81 Appendix B Frequencies 1650Hz Mark, 1850Hz Space for Transmit Originate; 1650Hz Mark, 1850Hz Space for Transmit Answer; V.27 ter 1800Hz Originate/ Answer; V.29 QAM 1700Hz Originate/Answer; V.17 TCM 1800Hz Originate/Answer Carrier Frequencies 1800 Hz V.32/V.32 bis /V.32 terbo /V.34/Enhanced V.34--33.6K/31.2K/28.8K/26.4K/24K/21.6K/ 19.2K/16.8K/14.[...]

82 Appendix B Frequency Stability ±0.01% Receiver Sensitivity -43 dBm under worst case conditions AGC Dynamic Range 43 dB Interface EIA RS232C/ITU-TSS V.24 Connectors Sixteen DB25 RS232C connectors; sixteen DB9 connectors for phone line (CC216/916/1432/ 2834 Rack Modem Cabinet) or sixteen RJ11 connectors for phone line (CC1600 Rack Modem Cabinet).[...]

Index[...]

84 Index Index Symbols &E0 1-32 &E1 1-32 &E14 1-31, 1-32 1.1 Technical Specifica- tions 1-81 A Abort Timer S7 1-51 AGC Dynamic Range 1-84 ASCII code 1-26 AT 1-25 AT command set 1-41 AT Commands and S-Register Summary 1-57 AT&T's "call card" tones 1-34 Auto-answer 1-26, 1-28 B Backspace Character 1-51 S5 1-51 Baud rate[...]

85 Index Clear to Send 1-41 cleardown on disconnect 1-36 COM ports COM2 1-29 Command Buffer 1-82 Command mode characters control 1-37 Command string 1-26 Commands Attention code 1-25 Auto-Reliable mode 1-32 Data compression 1-31, 1-32 Modem reset 1-25 Non-Error Correction mode 1-32 Reliable mode 1-32 Compatibility 1-81 Compliance with BABT Requirem[...]

86 Index Data Terminal Ready 1-19 Datacomm software 1-22, 1- 25, 1-26, 1-29, 1-30, 1-31 Configuration 1-25, 1-29, 1- 30 Diagnostics 1-84 Dial-Up and Leased Lines 1-18 Dial-Up Lines 1-18 Dialing a stored telephone 1- 40 Dialing/On-Line/Answering 1- 22 Digital Loopback Test (Syn- chronous) 1-65 Digital Loopback Test (Remote/ Automatic) 1-65 Digital L[...]

87 Index Inactivity Timer 1-53 S30 1-53 Indicators 1-84 Initialization strings 1-25, 1- 28, 1-32 Macintosh 1-28 PC-compatible 1-26 Installation 1-12 Intelligent Features 1-82 Interface 1-84 Introduction 1-8 ists operating parameters 1- 39 K Kingston Communications (Hull) pic 1-74 L Lease Line Restoral 1-83 Limited Warranty 1-67 Line Feed Character [...]

88 Index Changing defaults 1-28 Parity 1-25 pause during dialing 1-44 Pause Time for Comma 1-51 S8 1-51 PBX/CBX Disconnect Drop Time for DSR/CTS/CD 1- 52 S24 1-52 PC Board Controls 1-13 PC Initialization Strings 1-26 Phone Line Connection 1-13 Power 1-84 Power Consumption 1-84 Power Requirements 1-84 Preliminaries 1-11 Program V34 Connect Speeds 1-[...]

89 Index 39 Signal to Noise Ratio Informa- tion 1-39 SIT files 1-31 Speed Conversion 1-81 speed conversion 1-35 Standard AT command set responses 1-54 "Standard AT" Result Codes 1-56 T Tech Support 1-68 Technical Specifications 1-81 Telephone Line 1-11 Terminal Emulation 1-30 Terminal emulation 1-30 Terminal Emulation Setup 1-30 TERSE VER[...]

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