CALPAK CORPORATION
MX-2400
|
Modem Type |
Data (synchronous/asynchronous) |
|
Maximum Data Rate |
2400bps |
|
Data Bus |
8-bit ISA |
|
Data Modulation Protocol |
Unidentifed |
|
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: (3F8h) |
Off |
On |
Off |
On |
| 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 <CR> | ||
|
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 1 |
Command echo disabled. Command echo enabled. | |
|
2 |
0 1 |
Result codes enabled. Result codes disabled. | |
|
3 |
0 1 |
Display result codes in numeric format. Display result codes in verbose format. | |
|
4 |
0 1 |
Smart mode. Dumb mode. | |
|
5 |
0 1 |
Tone dial enabled. Pulse dial enabled. | |
|
6 |
0 |
Not used. | |
|
7 |
0 1 |
Answer mode enabled. Originate mode enabled. | |
|
BIT-MAPPED REGISTER S21 | |||
|
Format |
AT [cmds] S21=n [cmds] | ||
|
Example: |
ATS21=0 <CR> | ||
|
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 1 |
Selects RJ-11 jack. Not used. | |
|
1 |
0 1 |
Serial Paralell | |
|
2 |
0 1 |
CTS follows RTS. CTS forced high (synchronous only). | |
|
4, 3 |
00 01 10 11 |
DTR signal ignored. Modem goes to command mode on low DTR. Modem disconnects on low DTR. Auto-Answer is disabled. Modem is initialized on low DTR. | |
|
5 |
0 1 |
DCD forced high. DCD normal. | |
|
6 |
0 1 |
DSR forced high. DSR normal. | |
|
7 |
0 1 |
Long Space Disconnect function disabled. Long Space Disconnect function enabled. | |
|
BIT-MAPPED REGISTER S22 | |||
|
Format |
AT [cmds] S22=n [cmds] | ||
|
Example: |
ATS22=0 <CR> | ||
|
Default: |
Unidentified | ||
|
Range: |
0-127 | ||
|
Unit: |
Bit-mapped | ||
|
Description: |
Controls speaker volume and controls, and limits results codes. | ||
|
Bit | Value |
Function | |
|
1, 0 |
00 01 10 11 |
Off volume. On volume. Medium level volume. High level volume. | |
|
3, 2 |
00 01 10 11 |
Speaker off. Speaker off on carrier. Speaker always on. Speaker on during handshake. | |
|
6, 5, 4 |
000 100 101 110 111 |
Basic result codes only enabled. Basic and connection speed result codes enabled. Basic and connection speed result codes and dialtone detection enabled. All result codes except dialtone detection enabled. All result codes enabled. | |
|
BIT-MAPPED REGISTER S23 | |||
|
Format |
AT [cmds] S23=n [cmds] | ||
|
Example: |
ATS23=0 <CR> | ||
|
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 1 |
Remote digital loopback denied. Remote digital loopback allowed. | |
|
3, 2, 1 | 00 01 10 11 |
Sets serial port speed to 0-300bps. Sets serial port speed to 600bps. Sets serial port speed to 1200bps. Sets serial port speed to 2400bps.. | |
|
5,4 |
00 01 10 11 |
Parity even. Space Parity. Parity odd. Mark/No Parity. | |
|
7, 6 |
00 01 10 |
Guard tone disabled. Guard tone 550Hz enabled. Guard tone 1800Hz enabled. | |
|
BIT-MAPPED REGISTER S27 | |||
|
Format |
AT [cmds] S27=n [cmds] | ||
|
Example: |
AT S27=0 <CR> | ||
|
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 |
000 001 010 011 100 |
Asynchronous mode, serial port speed follows connect speed. Asynchronous command mode and synchronous connect mode. Asynchronous command mode and synchronous connect mode, DTR dialing enabled. Asynchronous command mode on low DTR, synchronous connect mode on high DTR. Hayes AutoSync™ mode - serial port locked at 9600bps. | |
|
2 |
0 1 |
Dial up line. Leased line. | |
|
5, 4 |
00 01 10 |
Internal DCE transmit clock source. External DTE transmit clock source. Remote DCE transmit clock source. | |
|
6 |
0 1 |
CCITT mode. Bell mode. | |
|
TEST MODES | |||
|
Format |
AT [cmds] S16=n [cmds] | ||
|
Example: |
ATS16=0 <CR> | ||
|
Default: |
Unidentified | ||
|
Range: |
0-125 | ||
|
Unit: |
Bit-mapped | ||
|
Description: |
Controls loopback tests, analog, digital, remote digital, and self tests. | ||
|
Bit |
Value |
Function | |
|
0 |
0 1 |
Local analog loopback not in progress. Local analog loopback in progress. | |
|
1 |
0 |
Not used. | |
|
2 |
0 1 |
Local digital loopback not in progress. Local digital loopback in progress. | |
|
3 |
0 1 |
Modem not in remote digital loopback. Remote digital loopback in progress. | |
|
4 |
0 1 |
Remote digital loopback not requested. Remote digital loopback requested. | |
|
5 |
0 1 |
Remote digital loopback w/ self-test not in progress. Remote digital loopback w/ self-test in progress. | |
|
6 |
0 1 |
Local analog loopback w/ self-test not in progress. Local analog loopback w/ self-test in progress. | |