CALPAK CORPORATION MX-2442B Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 2400bps Maximum Fax Rate 9600bps Data Bus 8-bit ISA Fax Class Unidentifed Data Modulation Protocol Unidentifed Fax Modulation Protocol ITU-T V.21, V.27ter Error Correction/Compression MNP5, V.42, V.42bis [Image] CONNECTIONS Purpose Location Purpose Location Line out CN1 Line in CN2 BASE I/O ADDRESS SELECTION Port SW1/A SW1/C SW1/E SW1/F » COM1: Off On Off On (3F8h) COM2: (2F8h) On Off Off On COM3: (3E8h) Off On On Off COM4: (2E8h) On Off On Off INTERRUPT SELECTION IRQ SW/B SW1/D JP1 3 On Off Pins 2 & 4 closed » 4 Off On Pins 2 & 4 closed 5 Off Off Pins 3 & 4 closed 7 Off Off Pins 1 & 2 closed Note: Location of JP1 is unidentified. Proprietary AT Command Set ACCEPT RELIABLE MODE Type: Immediate Format: AT [cmds] \U [cmds] Example: AT \U B1 Description: Accepts remote modem’s request for reliable link. AUTO-RELIABLE FALLBACK CHARACTER Type: Configuration Format: AT [cmds] %An [cmds] Example: AT%A19 Default: 19 Range: 0-127 Unit: ASCII Description: Sets the character used as the auto-reliable fallback character. %A0 will disable this function. AUTO-RELIABLE TIME BUFFER CONFIGURATION Type: Configuration Format: AT [cmds] \Cn [cmds] Example: AT \C1 &W Description: Controls the handling of incoming data during auto-reliable time period. Command Function \C0 Data is discarded. \C1 Data is buffered. \C2 Data is discarded, modem returns to normal mode on receiving auto-reliable fallback character. BIT-MAPPED REGISTER S14 Format AT [cmds] S14=n [cmds] Example: ATS14=0 Default: Unidentified Range: 0-174 Unit: Bit-mapped Description: Controls echo, result codes, result code 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 Smart mode. 1 Dumb mode. 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] Example: ATS21=0 Default: Unidentified Range: 0-253 Unit: Bit-mapped Description: Selects jack type, CTS signal, low DTR action, DCD signal, DSR signal, and the Long Space Disconnect function. Bit Value Function 0 0 RJ-11 1 Not used. 1 0 Serial. 1 Parallel. 2 0 CTS follows RTS. 1 CTS forced high (synchronous only). 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] Example: ATS22=0 Default: Unidentified 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 On 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, 5, 4 000 Basic result codes only enabled. 100 Basic and connection speed result codes enabled. 101 Basic and connection speed result codes 110 and dialtone detection enabled. 111 All result codes except dialtone detection enabled. All result codes enabled. BIT-MAPPED REGISTER S23 Format AT [cmds] S23=n [cmds] Example: ATS23=0 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. 2, 1 00 Sets serial port speed to 0-300bps. 01 Sets serial port speed to 600bps. 10 Sets serial port speed to 1200bps. 11 Sets serial port speed to 2400bps. 3 0 Not used. 5,4 00 Parity even. 01 Space Parity. 10 Parity odd. 11 Mark/ No Parity. 7, 6 00 Guard tone disabled. 01 Guard tone 550Hz enabled. 10 Guard tone 1800Hz enabled. BIT-MAPPED REGISTER S27 Format AT [cmds] S27=n [cmds] Example: AT S27=0 Default: Unidentified Range: 0 - 108 Unit: Bit-mapped Description: Selects sync/async mode, Line type, internal clock, and ITU-T/Bell modes. Bit Value Function 1, 0 00 Asynchronous mode, serial port speed follows connect speed. 01 Asynchronous command mode and synchronous 10 connect mode. 11 Asynchronous command mode and synchronous connect mode, DTR dialing enabled. Asynchronous command mode on low DTR, synchronous connect mode on high DTR. 2 0 Dial up line. 1 Leased line. 3 0 Not used. 5, 4 00 Internal DCE transmit clock source. 01 External DTE transmit clock source. 10 Remote DCE transmit clock source. 6 0 CCITT mode. 1 Bell mode. BIT-MAPPED REGISTER S36 Format AT [cmds] S36=n [cmds] Example: ATS36=0 Default: Unidentified Range: 0 - 207 Unit: Bit-mapped Description: Selects connect mode, flow control, XON/XOFF flow control, and DTE port flow control. Bit Value Function 1, 0 00 Normal mode enabled. 01 Direct mode enabled. 10 Reliable mode enabled. 11 Auto-reliable mode enabled. 2 0 Flow control disabled. 1 Flow control enabled. 3 0 XON/XOFF signals trapped by local modem. 1 XON/XOFF passed through local modem. 5, 4 0 Not used. 6, 7 00 Flow control disabled. 01 XON/XOFF flow control enabled. 10 CTS flow control to DTE enabled. 11 RTS/CTS flow control enabled. BIT-MAPPED REGISTER S38 Format AT [cmds] S38=n [cmds] Example: ATS38=40 Default: Unidentified Range: 0 - 158 Unit: Bit-mapped Description: Controls auto-reliable buffer, lock serial port speed, data echo, extended result codes, and transmit break. Bit Value Function 1, 0 00 Data is discarded. 01 Data is buffered. 10 Data is discarded, modem returns to normal mode on receiving auto-reliable fallback character. 2 0 Serial speed locked. 1 Serial speed follows connect speed. 3 0 Data echo disabled. 1 Data echo enabled. 4 0 Extended result codes disabled. 1 Extended result codes enabled. 6, 5 0 Not used. 7 0 300ms break not transmitted. 1 300ms break transmitted. BIT-MAPPED REGISTER S40 Format AT [cmds] S40=n [cmds] Example: ATS40=0 Default: Unidentified Range: 0 - 163 Unit: Bit-mapped Description: Controls MNP block size, and break type. Bit Value Function 1, 0 00 Maximum MNP block size is 64 characters. 01 Maximum MNP block size is 128 characters. 10 Maximum MNP block size is 192 characters. 11 Maximum MNP block size is 256 characters. 2, 3, 4 0 Not used. 5, 6, 7 000 Online command mode enabled, send no break to remote modem. 001 Break sent to remote modem and buffered 010 cleared. 011 Online command mode enabled, send no break to remote modem. 100 Send break to remote modem immediately. 101 Online command mode enabled, send no break to remote modem. Send break with transmitted data. BREAK SEND Type: Configuration Format: AT [cmds] \Bn [cmds] Example: AT \B3 &W Range: 1-9 Unit: .1 second Description: Sends break to modem. BREAK TYPE Type: Configuration Format: AT [cmds] \Kn [cmds] Example: AT \K5 Description: Configures action of break signal. Command Function \K0 Online command mode enabled, send no break to remote modem. \K1 Break sent to remote modem and buffered cleared. \K2 Online command mode enabled, send no break to remote modem. \K3 Send break to remote modem immediately. \K4 Online command mode enabled, send no break to remote modem. \K5 Send break with transmitted data. COMPRESSION Type: Configuration Format: AT [cmds] %Cn [cmds] Example: AT \V1 %C0 &W Description: Selects data compression. Command Function %C0 Data compression disabled. %C1 Data compression enabled. COMPRESSION Type: Register Format: AT [cmds] S41=n [cmds] Example: AT S41=0 &W Description: Selects data compression. Command Function S41=0 Data compression disabled. S41=1 Data compression enabled. CONNECT MODE Type: Configuration Format: AT [cmds] \Nn [cmds] Example: AT \N0 DT555-1212 Description: Sets connect mode. Command Function \N0 Normal mode enabled. \N1 Direct mode enabled. \N2 Reliable mode enabled. \N3 Auto-reliable mode enabled. CONVERT TO RELIABLE MODE Type: Immediate Format: AT [cmds] \Y [cmds] Example: AT \Y Description: Initiates reliable mode link. ECHO DATA Type: Configuration Format: AT [cmds] \En [cmds] \Example: AT \E0 Description: Enables modem to echo received data. Command Function \E0 Data echo disabled. \E1 Data echo enabled. EXTENDED RESULT CODES Type: Configuration Format: AT [cmds] \Vn [cmds] Example: AT \V0 %C1 Description: Selects extended result codes. Command Function \V0 Extended result codes disabled. \V1 Extended result codes enabled. FLOW CONTROL Type: Configuration Format: AT [cmds] \Gn [cmds] Example: AT \G1 &K3 Description: Selects modem port flow control. Command Function \G0 Flow control disabled. \G1 Flow control enabled. FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] \Qn [cmds] Example: AT \Q0 A Description: Sets type of flow control used by modem. Command Function \Q0 Flow control disabled. \Q1 XON/XOFF flow control enabled. \Q2 CTS flow control to DTE enabled. \Q3 RTS/CTS flow control enabled. INACTIVITY TIMER Type: Configuration Format: AT [cmds] \Tn [cmds] Example: AT\T20 Default: Unidentified Range: 0-90 Unit: 1 minute Description: Sets the length of time that the modem does not receive information before it disconnects. LOCK SERIAL PORT Type: Configuration Format: AT [cmds] \Jn [cmds] Example: AT %L3 %B14 \J0 Description: Sets operation of serial port speed. Command Function \J0 Serial speed locked. \J1 Serial speed follows connect speed. MAXIMUM BLOCK SIZE FOR TRANSMISSION Type: Configuration Format: AT [cmds] \An [cmds] Example: AT \A3 %C1 Description: Sets the maximum transmittable block size. Command Function \A0 Maximum MNP block size is 64 characters. \A1 Maximum MNP block size is 128 characters. \A2 Maximum MNP block size is 192 characters. \A3 Maximum MNP block size is 256 characters. ON-LINE IN RELIABLE MODE Type: Immediate Format: AT [cmds] \O Example: AT \O Description: Returns to on-line and requests reliable mode connection. SWITCH TO MNP MODE Type: Immediate Format: AT [cmds] \Z [cmds] Example: AT \Z &W Description: Switches to normal mode from MNP mode. TEST MODES Format AT [cmds] S16=n [cmds] Example: ATS16=0 Default: Unidentified 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/ self-test not in progress. 1 Remote digital loopback w/ self-test in progress. 6 0 Local analog loopback w/ self-test not in progress. 1 Local analog loopback w/ self-test in progress. XON/XOFF PASS-THROUGH Type: Configuration Format: AT [cmds] \Xn [cmds] Example: AT \X0 O Description: Selects whether XON/XOFF signals are sent to remote modem. Command Function \X0 XON/XOFF signals trapped by local modem. \X1 XON/XOFF passed through local modem.