CALPAK CORPORATION MX-2400 Modem Type Data (synchronous/asynchronous) Maximum Data Rate 2400bps Data Bus 8-bit ISA Data Modulation Unidentifed Protocol [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 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, smart/dumb 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 Selects RJ-11 jack. 1 Not used. 1 0 Serial 1 Paralell 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. 3, 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.. 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 3, 1, 0 000 Asynchronous mode, serial port speed follows connect speed. 001 Asynchronous command mode and synchronous 010 connect mode. 011 Asynchronous command mode and synchronous connect mode, DTR dialing enabled. 100 Asynchronous command mode on low DTR, synchronous connect mode on high DTR. Hayes AutoSync™ mode - serial port locked at 9600bps. 2 0 Dial up line. 1 Leased line. 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. 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.