ASPEN TECHNOLOGIES, INC.
14.4EFX
Modem Type | Data (synchronous/asynchronous)/Fax |
Maximum Data Rate | 14.4Kbps |
Maximum Fax Rate | 14.4Kbps |
Data Bus | External |
Fax Class | Class I & II |
Data Modulation Protocol | Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis |
Fax Modulation Protocol | ITU-T V.17, V.21CH2, V.27ter, V.29 |
Error Correction/Compression | MNP5, V.42, V.42bis |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Line out | CN1 | DC power | CN4 |
Line in | CN2 | Power switch | SW1 |
RS-232/422 | CN3 |
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
MR | Red | On | Power is on |
MR | Red | Off | Power is off |
TR | Red | On | DTR signal is high |
TR | Red | Off | DTR signal is low |
SD | Red | Blinking | Modem is transmitting data |
SD | Red | Off | Modem is not transmitting data |
RD | Red | Blinking | Modem is receiving data |
RD | Red | Off | Modem is not receiving data |
OH | Red | On | Modem is off-hook |
OH | Red | Off | Modem is on-hook |
CD | Red | On | Carrier signal detected |
CD | Red | Off | Carrier signal not detected |
AA | Red | On | Auto-answer enabled |
AA | Red | Off | Auto-answer disabled |
AA | Red | Blinking | Phone is ringing |
HS | Red | Blinking | Modem is in test mode or detected an error |
HS | Red | On | Modem is operating at 9600bps or faster |
HS | Red | Off | Modem is not operating faster than 9600bps |
Proprietary AT Command Set
ACCEPT RELIABLE MODE | |
Type: | Immediate |
Format: | AT [cmds] \U [cmds] |
Example: | AT \U B1 <CR> |
Description: | Accepts remote modem’s request for reliable link. |
AUTO-RETRAIN | |
Type: | Configuration |
Format: | AT %En |
Example: | AT %E1 <CR> |
Description: | Selects auto-retrain mode. |
Command | Function |
» %E0 | Auto-retrain disabled. |
%E1 | Auto-retrain enabled. |
BTI-MAPPED REGISTERS | |
Register | Default |
S14 | Unidentified |
S21 | Unidentified |
S22 | Unidentified |
S23 | Unidentified |
S27 | Unidentified |
S40 | 57 |
S41 | 1 |
BREAK SEND | |
Type: | Configuration |
Format: | AT [cmds] \Bn [cmds] |
Example: | AT \B3 &W <CR> |
Default: | 3 |
Range: | 1-9 |
Unit: | .1 second |
Description: | Sends break to modem. |
BREAK TYPE | |
Type: | Configuration |
Format: | AT [cmds] \Kn [cmds] |
Example: | AT \K5 <CR> |
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. |
\K3 | Send break to remote modem immediately. |
» \K5 | Send break with transmitted data. |
COMPRESSION | |
Type: | Configuration |
Format: | AT [cmds] %Cn [cmds] |
Example: | AT %C1 <CR> |
Description: | Selects data compression. |
Command | Function |
%C0 | Data compression disabled. |
» %C1 | Data compression enabled. |
COMPRESSION | |
Type: | Configuration |
Format: | AT [cmds] %Mn [cmds] |
Example: | AT %M3 <CR> |
Description: | Selects data compression. |
Command | Function |
%M0 | Data compression disabled. |
%M1 | Data compression enabled on transmit only. |
%M2 | Data compression enabled on receive only. |
» %M3 | Data compression enabled. |
CONNECT MODE | |
Type: | Configuration |
Format: | AT [cmds] \Nn [cmds] |
Example: | AT \N1 DT555-1212 <CR> |
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 <CR> |
Description: | Initiates reliable mode link. |
ECHO OPTIMIZATION | |
Type: | Immediate |
Format: | AT [cmds] \En [cmds] |
Example: | AT \E1 <CR> |
Description: | Enables modem echo optimization. |
Command | Function |
\E1 | One shot optimization enabled. |
FLOW CONTROL | |
Type: | Configuration |
Format: | AT [cmds] \Gn [cmds] |
Example: | AT \G0 &K3 <CR> |
Description: | Selects modem port flow control. |
Command | Function |
» \G0 | Flow control disabled. |
\G1 | Flow control enabled. |
INACTIVITY TIMER | |
Type: | Configuration |
Format: | AT [cmds] \Tn [cmds] |
Example: | AT\T0 <CR> |
Default: | 0 |
Range: | 0-90 |
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] |
Example: | AT %L &W <CR> |
Description: | Returns recieved line signal level. |
MAXIMUM BLOCK SIZE FOR TRANSMISSION | |
Type: | Configuration |
Format: | AT [cmds] \An [cmds] |
Example: | AT \A2 &MB28800 <CR> |
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. |
MNP STREAM/BLOCK MODE | |
Type: | Configuration |
Format: | AT [cmds] \Ln [cmds] |
Example: | AT \L1 DT555-1212 <CR> |
Description: | Selects the transfer mode for MNP. |
Command | Function |
\L0 | Stream mode for MNP enabled. |
» \L1 | Block mode for MNP enabled. |
ON-LINE IN RELIABLE MODE | |
Type: | Immediate |
Format: | AT [cmds] \O |
Example: | AT \O <CR> |
Description: | Returns to on-line and requests reliable mode connection. |
REPORT SIGNAL QUALITY | |
Type: | Immediate |
Format: | AT [cmds] %Q [cmds] |
Example: | AT %Q &W <CR> |
Description: | Reports signal quality. |
SWITCH TO MNP MODE | |
Type: | Immediate |
Format: | AT [cmds] \Z [cmds] |
Example: | AT \Z &W <CR> |
Description: | Switches to normal mode from MNP mode. |
TEST MODES | |||
Format | AT [cmds] S16=n [cmds] | ||
Example: | ATS16=0 <CR> | ||
Default: | 0 | ||
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. |
V.42bis DICTIONARY CLEAR | |
Type: | Immediate |
Format: | AT [cmds] %P [cmds] |
Example: | AT %P &W <CR> |
Description: | Clears V.42bis dictionary. |
V.42bis DICTIONARY SIZE | |
Type: | Configuration |
Format: | AT [cmds] %Dn [cmds] |
Example: | AT %D2 &W <CR> |
Description: | Controls V.42bis dictionary size. |
Command | Function |
%D0 | 512 bytes. |
%D1 | 1024 bytes. |
» %D2 | 2048 bytes |
%D3 | 4096 bytes (one way compression only) |
V.42bis MAXIMUM STRING LENGTH | |
Type: | Configuration |
Format: | AT [cmds] %Sn [cmds] |
Example: | AT %S32 <CR> |
Default: | 32 |
Range: | 6 - 64 |
Unit: | Unidentified |
Description: | Selects string size for V.42bis compression. |