IBM CORPORATION 14.4KBPS DATA/FAX MODEM INTERNAL ISA Card Type Fax, Modem (asynchronous) Chip Set Unidentified Maximum Data Rate 14.4Kbps Maximum Fax Rate 14.4Kbps Data Bus 8-bit ISA Fax Class Class I & II Data Modulation Protocol Bell 103/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis Fax Modulation Protocol ITU-T V.17, V.21, V.27ter, V.29 Error Correction/Compression MNP5, V.42, V.42bis [Image] CONNECTIONS Function Label Function Label Line out CN1 Line in CN2 SERIAL PORT ADDRESS Setting JP1/A JP1/B JP1/C JP1/D COM1 (3F8h) Closed Open Open Open COM2 (2F8h) Open Closed Open Open COM3 (3E8h) Open Open Closed Open COM4 (2E8h) Open Open Open Closed INTERRUPT SELECTION Setting JP1/E JP1/F JP1/G JP1/H 3 Closed Open Open Open 4 Open Closed Open Open 5 Open Open Closed Open 7 Open Open Open Closed Proprietary AT Command Set AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD Type: Configuration Format: AT [cmds] %En [cmds] Description: Controls auto-retrain mode and fallback/fall-forward Command Function %E0 Auto-retrain disabled %E1 Auto-retrain enabled %E2 Auto-fallback/fall-forward enabled BIT-MAPPED REGISTER S14 Format: AT [cmds] S14=n [cmds] Default: 138 Range: 0-174 Unit: Bit-mapped Description: Controls echo, result codes and display, dial mode, and answer/originate mode. Bit Value Function 0 0 Not used 1 0 Command echo disabled 1 Command echo enabled 2 0 Result codes enabled 1 Result codes disabled 3 0 Display result codes in numeric format 1 Display result codes in verbose format 4 0 Not used 5 0 Tone dial enabled 1 Pulse dial enabled 6 0 Not used 7 0 Answer mode enabled 1 Originate mode enabled BIT-MAPPED REGISTER S21 Format AT [cmds] S21=n [cmds] Default: 52 Range: 0-253 Unit: Bit-mapped Description: Selects jack type, CTS/DCD/DSR signals, low DTR action, and the long space disconnect function. Bit Value Function 0 0 Selects RJ-11, RJ-41S, or RJ45S jack 1 Selects RJ-12 or RJ-13 jack 1 0 Not used 2 0 CTS follows RTS 1 CTS forced high 4, 3 00 DTR signal ignored 01 Modem goes to command mode on low DTR 10 Modem disconnects on low DTR; Auto-Answer is disabled. 11 Modem is initialized on low DTR 5 0 DCD forced high 1 DCD normal 6 0 DSR forced high 1 DSR normal 7 0 Long space disconnect function disabled 1 Long space disconnect function enabled BIT-MAPPED REGISTER S22 Format AT [cmds] S22=n [cmds] Default: 117 Range: 0-127 Unit: Bit-mapped Description: Controls speaker volume and controls, and limits results codes. Bit Value Function 1, 0 00 Off volume 01 Low level volume 10 Medium level volume 11 High level volume 3, 2 00 Speaker off 01 Speaker off on carrier 10 Speaker always on 11 Speaker on during handshake 6 - 4 000 Basic result codes only enabled 100 Basic and connection speed result codes enabled 101 Basic and connection speed result codes and dialtone detection enabled 110 All result codes except dialtone detection enabled 111 All result codes enabled BIT-MAPPED REGISTER S23 Format AT [cmds] S23=n [cmds] Default: Unidentified Range: 0-189 Unit: Bit-mapped Description: Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone. Bit Value Function 0 0 Remote digital loopback denied 1 Remote digital loopback allowed 3 - 1 000 Sets serial port speed to 0-300bps 001 Sets serial port speed to 600bps 010 Sets serial port speed to 1200bps 011 Sets serial port speed to 2400bps 100 Sets serial port speed to 4800bps 101 Sets serial port speed to 9600bps 110 Sets serial port speed to 19200bps 5, 4 00 Parity even 01 Not used 10 Parity odd 11 No Parity 7, 6 00 Guard tone disabled 01 Guard tone disabled 10 Guard tone 1800Hz enabled BIT-MAPPED REGISTER S27 Format AT [cmds] S27=n [cmds] Default: 64 Range: 0-116 Unit: Bit-mapped Description: Selects line type, clock source, and ITU-T/Bell modes. Bit Value Function 3, 1, 0 000 Not used 2 0 Switched line 1 Leased line 5, 4 00 Local modem generates transmit clock source 01 Local DTE generates transmit clock source 10 Remote DCE/DTE generates transmit clock source 6 0 ITU/T mode 1 Bell mode BIT-MAPPED REGISTER S28 Format AT [cmds] S28=n [cmds] Default: 0 Range: 0-31 Unit: Bit-mapped Description: Controls V.23 split speed, transmit/receive speed, half duplex, and pulse dialing. Bit Value Function 0 0 V.23 split speed operation disabled 1 V.23 split speed operation enabled 1 0 75bps transmit, 1200bps receive enabled 1 1200bps transmit, 75bps receive enabled 2 0 V.23 half-duplex disabled 1 V.23 half-duplex enabled 4, 3 00 39ms make/61ms break at 10pps 01 33ms make/67ms break at 10pps 10 39ms make/61ms break at 20pps 11 33ms make/67ms break at 20pps BIT-MAPPED REGISTER S31 Format: AT [cmds] S31=n [cmds] Default: 2 Range: 0-10 Description: Select automode and extended result code format. Bit Value Function 0 0 Not used 1 0 Auto-mode detection disabled 1 In originate mode, handshake begins at line speed designated by the S37 register. Modem can shift to a slower speed if necessary. In answer mode, handshake attempted with the following protocols in order - V.32bis, V.32, V.22bis, V.22 or Bell 212, V.21, and Bell 103 3, 2 00 Enables CONNECT result codes to report DTE speed 01 Full reporting of CONNECT result codes 10 Enables CONNECT result codes to report DCE speed BIT-MAPPED REGISTER S40 Format AT [cmds] S40=n [cmds] Default: 105 Range: 0-239 Unit: Bit-mapped Description: Controls power level and break handling, selects MNP extended services, link negotiation, and block size. Bit Value Function 0 0 MNP disabled 1 MNP enabled 1 0 Power level adjustment enabled 1 Power level adjustment disabled 2 0 Link will be negotiated at highest possible speed 1 Link will be negotiated at 1200bps 5, 4, 3 000 \K0 001 \K1 010 \K2 011 \K3 100 \K4 101 \K5 7, 6 00 MNP block size is 64 characters 01 MNP block size is 128 characters 10 MNP block size is 192 characters 11 MNP block size is 256 characters BIT-MAPPED REGISTER S41 Format AT [cmds] S41=n [cmds] Default: 7 Range: 0-31 Unit: Bit-mapped Description: Selects compression, auto-retrain, flow control, and MNP mode. Bit Value Function 1 - 0 00 Data compression disabled 01 MNP5 enabled 10 V.42bis enabled 11 MNP5 and V.42bis enabled 2 0 Auto-retrain disabled 1 Auto-retrain enabled 3 0 Flow control disabled 1 Flow control enabled 4 0 Stream mode for MNP 1 Block mode for MNP BREAK SEND Type: Configuration Format: AT [cmds] \Bn [cmds] Default: 3 Range: 1-9 Unit: .1 second Description: Sends break to modem BREAK TYPE Type: Configuration Format: AT [cmds] \Kn [cmds] Description: Configures action of break signal Command Break from DTE Break from DTE Break received while in Normal while in Direct from remote modem or MNP mode mode \K0 On-line command On-line command Buffers cleared, mode enabled, mode enabled, break sent to DTE send no break send no break to to remote modem remote modem \K1 Break sent to On-line command Buffers cleared, remote modem mode enabled, break sent to DTE and buffers send no break to cleared remote modem \K2 On-line command Send break to Break sent mode enabled, remote modem immediately to send no break immediately DTE to remote modem \K3 Send break to On-line command Break sent remote modem mode enabled, immediately to immediately send no break to DTE remote modem \K4 On-line command Send break to Break sent with mode enabled, remote modem received data to send no break immediately the DTE to remote modem î \K5 Send break with Send break to Break sent with transmitted remote modem received data to data immediately the DTE COMPRESSION Type: Configuration Format: AT [cmds] %Cn [cmds] Description: Selects data compression Command Function %C0 Data compression disabled %C1 Not used %C2 V.42bis enabled %C3 MNP5 and V.42bis enabled CONNECT MODE Type: Configuration Format: AT [cmds] \Nn [cmds] Description: Controls the type of connection the modem will operate in Command Function \N0 Normal mode enabled \N1 Direct mode enabled \N2 Reliable mode enabled \N3 Auto-reliable mode enabled \N4 V.42 reliable mode enabled \N5 MNP reliable mode enabled DIAL Type: Immediate Format: AT [cmds] D<#> [cmds] Description: Dials telephone number according to any modifiers included in the string Note: Any combination of modifiers can be used to produce the desired dial functions in sequence. Modifier Function L Re-dial last number P Pulse dialing enabled S=n Dial stored telephone number n T Tone dialing enabled W Dialing resumed following dial tone detection , Dialing paused for amount of time specified in S8 register ! Flash function initiated @ Wait for quiet answer enabled ; Modem returned to command state after dialing ^ Calling tone disabled FLOW CONTROL Type: Configuration Format: AT [cmds] \Gn [cmds] Description: Selects modem port flow control Command Function \G0 Flow control disabled \G1 Flow control enabled FLOW CONTROL Type: Register Format AT [cmds] S39? [cmds] Description: Displays the current flow control Value Meaning 0 Flow control disabled 3 RTS/CTS flow control enabled 4 XON/XOFF flow control enabled 5 Transparent XON/XOFF flow control enabled FLOW CONTROL CHARACTER - XOFF Type: Register Format: AT [cmds] S33=n [cmds] Default: 19 Range: 0-255 Unit: ASCII Description: Sets the character used to represent XOFF FLOW CONTROL CHARACTER - XON Type: Register Format: AT [cmds] S32=n [cmds] Default: 17 Range: 0-255 Unit: ASCII Description: Sets the character used to represent XON INACTIVITY TIMER Type: Configuration Format: AT [cmds] \Tn [cmds] Default: 0 Range: 0-42 Unit: 1 minute Description: Sets the length of time that the modem does not receive information before it disconnects. LINE SIGNAL LEVEL Type: Immediate Format: AT [cmds] %L [cmds] Default: Unidentified Range: 9-43 Unit: -dBm Description: Returns a value which indicates the received line signal level LINE SIGNAL QUALITY Type: Immediate Format: AT [cmds] %Q [cmds] Description: Returns a value which indicates line signal quality Value Meaning 0 - 7 Auto-retrain disabled 8 - 255 Auto-retrain enabled MAXIMUM BLOCK SIZE FOR TRANSMISSION Type: Configuration Format: AT [cmds] \An [cmds] Description: Sets the maximum transmittable block size Command Function \A0 MNP block size is 64 characters \A1 MNP block size is 128 characters \A2 MNP block size is 192 characters \A3 MNP block size is 256 characters MNP - STREAM/BLOCK MODE Type: Configuration Format: AT [cmds] \Ln [cmds] Description: Selects the transfer mode for MNP link Command Function \L0 Stream mode for MNP enabled \L1 Block mode for MNP enabled MNP - LINK NEGOTIATION Type: Configuration Format: AT [cmds] *Hn [cmds] Description: Sets the speed at which an MNP link negotiation will occur Command Function *H0 Link will be negotiated at highest possible speed *H1 Link will be negotiated at 1200bps REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports product identification code I1 Reports ROM checksum as OK or ERROR I2 Tests and reports ROM checksum I3 Reports firmware revision level I4 Reports OEM-defined identifier string I5 Reports country code I6 Reports Modem data pump model SLEEP TIMER Type: Register Format AT [cmds] S24=n [cmds] Default: 0 Range: 0-255 Unit: 1 second Description: Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode. SPLIT-SPEED CONTROL Type: Configuration Format: AT [cmds] \Wn [cmds] Description: Controls split-speed mode Command Function \W0 V.23 split-speed mode disabled \W1 V.23 split-speed mode enabled SPLIT-SPEED MODE Type: Configuration Format: AT [cmds] %Fn [cmds] Description: Controls split-speed direction Command Function %F0 Not used %F1 75bps transmit, 1200bps receive %F2 1200bps transmit, 75bps receive; when AT\W1 is set. SWITCH TO NORMAL MODE Type: Immediate Format: AT [cmds] \Z [cmds] Description: Switches to normal mode from MNP mode TEST MODES Type: Register Format: AT [cmds] S16=n [cmds] Default: 0 Range: 0-125 Unit: Bit-mapped Description: Controls loopback tests: analog, digital, remote digital, and self tests. Bit Value Function 0 0 Local analog loopback not in progress 1 Local analog loopback in progress 1 0 Not used 2 0 Local digital loopback not in progress 1 Local digital loopback in progress 3 0 Modem not in remote digital loopback 1 Remote digital loopback in progress 4 0 Remote digital loopback not requested 1 Remote digital loopback requested 5 0 Remote digital loopback w/ error count not in progress 1 Remote digital loopback w/ error count in progress 6 0 Local analog loopback w/ self-test not in progress 1 Local analog loopback w/ self-test in progress TRANSMISSION LEVEL - PSTN Type Register Format AT [cmds] S91=n [cmds] Default 10 Range 0-15 Unit -1 dBm Description Sets the signal level for transmission over switched phone lines