CREATIX POLYMEDIA
SG 2834
Card Type |
Modem |
Chip Set |
Unidentified |
I/O Options |
25-pin serial port, power, phone port (RJ-11) |
Maximum Data Rate |
115.2Kbps |
Maximum Fax Rate |
14.4Kbps |
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 |
Fax Class |
Class I & II |
Data Bus |
External |
CONNECTIONS | ||||||
Function |
Label |
Function |
Label | |||
25-pin serial port |
CN1 |
RJ-11 phone port |
CN3 | |||
Power |
CN2 |
DIAGNOSTIC LED(S) | |||
LED |
Color |
Status |
Condition |
PWR |
Unidentified |
On |
Power is on |
PWR |
Unidentified |
Off |
Power is off |
ONLN |
Unidentified |
On |
Modem is switched to the transmission line |
ONLN |
Unidentified |
Off |
Modem is not switched to the transmission line |
DSR |
Unidentified |
On |
Answer tone is detected |
DSR |
Unidentified |
Off |
Answer tone not detected |
DCD |
Unidentified |
On |
Carrier signal detected |
DCD |
Unidentified |
Off |
Carrier signal not detected |
CTS |
Unidentified |
On |
Modem is ready to transmit data |
CTS |
Unidentified |
Off |
Modem is not ready to transmit data |
RTS |
Unidentified |
On |
Transmission is being requested |
RTS |
Unidentified |
Off |
Transmission is not being requested |
DTR |
Unidentified |
On |
Computer is ready for operation |
DTR |
Unidentified |
Off |
Computer is not ready for operation |
SUPPORTED COMMAND SET |
Basic AT Commands |
AT, +++, A/ |
A, B, E, M, P, Q, T, V, W, X, Y, Z |
&C, &F, &P, &R, &T, &V, &Z |
Extended AT Commands |
\A, \B, \G,\K,\N |
%C |
Special Commands |
+MS, *H |
S Registers |
S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16,S18, S24, S25 |
S30, S31, S32, S33, S38, S40, S95 |
Note: See MHI Help File for full command documentation. |
Proprietary AT Command Set
AUTO-MODE DETECTION | |
Type: |
Configuration |
Format: |
AT [cmds] Nn [cmds] |
Description: |
Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed. |
Command |
Function |
N0 |
Auto-mode detection disabled. Handshake begins at line speed designated by the S37 register. If S37=0 handshake follows interface speed |
N1 |
Auto-mode detection enabled. |
COMMUNICATIONS MODE | |
Type: |
Configuration |
Format: |
AT [cmds] &Qn [cmds] |
Description: |
Selects communications mode options |
Command |
Mode |
&Q4 |
Auto-synchronous mode |
&Q5 |
Error correction mode |
&Q6 |
Buffered asynchronous mode |
DATA SET READY (DSR) | |
Type: |
Configuration |
Format: |
AT [cmds] &Sn [cmds] |
Description: |
Selects DSR options |
Command |
Function |
&S0 |
DSR forced high |
&S1 |
DSR high only while modem is handshaking or connected |
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. |
Command |
Function |
DP |
Pulse dialing enabled |
DS=n |
Dial stored telephone number n |
DT |
Tone dialing enabled/Pulse dialing disabled |
DW |
Dialing resumed following dial tone detection |
D, |
Dialing paused for 1 second |
D! |
Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook. |
D^ |
Calling tone disabled |
D; |
Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command. |
FLOW CONTROL | |
Type: |
Configuration |
Format: |
AT [cmds] &Kn [cmds] |
Description: |
Enables flow control options |
Command |
Function |
&K0 |
Flow control disabled |
&K3 |
RTS/CTS flow control enabled |
&K4 |
XON/XOFF flow control enabled |
&K5 |
Transparent XON/XOFF flow control enabled |
&K6 |
RTS/CTS & XON/XOFF flow control enabled |
GUARD TONE | |
Type: |
Configuration |
Format: |
AT [cmds] &Gn [cmds] |
Description: |
Commands the modem to transmit a guard tone in V.22/V.22bis |
Note: Used primarily for international data transmission | |
Command |
Function |
í &G0 |
Guard tone disabled |
&G1 |
Guard tone disabled |
&G2 |
1800Hz guard tone enabled |
HOOK CONTROL | |
Type: |
Immediate |
Format: |
AT [cmds] Hn [cmds] |
Description: |
Selects whether the modem is on-hook or off-hook |
Command |
Function |
H0 |
Modem commanded to go on-hook (hang-up) |
ON-LINE | |
Type: |
Immediate |
Format: |
AT [cmds] On [cmds] |
Description: |
Controls on-line command (data transmission) state options. |
Note: The O command must be placed at the end of the command string. | |
Command |
Function |
O0 |
On-line command mode with no retraining enabled |
REPORT INFORMATION | |
Type: |
Immediate |
Format: |
AT [cmds] In [cmds] |
Description: |
Displays information requested |
Command |
Function |
I0 |
Reports product code |
I1 |
Reports ROM checksum |
I2 |
Tests and reports ROM checksum |
I3 |
Reports firmware version |
I4 |
Reports device name |
I5 |
Reports country code |
I6 |
Reports data pump model |
I7 |
DAA Code of MCU request |
SPEAKER VOLUME | |
Type: |
Configuration |
Format: |
AT [cmds] Ln [cmds] |
Description: |
Controls speaker volume |
Command |
Function |
í L0 |
Low volume setting |
L1 |
Low volume setting |
L2 |
Medium volume setting |
L3 |
Highest volume setting |
EXTENDED 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 |
í %E0 |
Auto-retrain disabled |
%E1 |
Auto-retrain enabled |
SPECIAL COMMANDS
MNP - EXTENDED SERVICES | |
Type: |
Configuration |
Format: |
AT [cmds] -Kn [cmds] |
Description: |
Selects MNP extended services |
Command |
Function |
í -K1 |
MNP extended services enabled |
-K2 |
MNP extended services enabled without indicating MNP on the answer detection phase. |
S(status) REGISTERS
BIT-MAPPED REGISTER S19 | ||
Format |
AT [cmds] S19=n [cmds] | |
Range: |
0-255 | |
Unit: |
Bit-mapped | |
Description: |
Selects synchronous/asynchronous mode, line type, clock source, and ITU-T/Bell modes. | |
Bit |
Value |
Function |
0 |
0 |
Not used |
1 |
0 1 |
BSC HDLC |
2 |
0 1 |
Address detector authorized Address detector not authorized |
3 |
0 1 |
NRZ1 NRZ |
4 |
0 1 |
Mark idle Flag or sync idle |
5-7 |
0 |
Not Used |
BIT-MAPPED REGISTER S21 | ||
Format |
AT [cmds] S21=n [cmds] | |
Range: |
0-253 | |
Unit: |
Bit-mapped | |
Description: |
Selects CTS/DCD/DSR signals, low DTR action, and the long space disconnect function. | |
Bit |
Value |
Function |
0-1 |
0 |
Not used |
2 |
0 1 |
CTS forced high CTS follows RTS |
4, 3 |
0 |
Not used |
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] | |
Range: |
0-255 | |
Unit: |
Bit-mapped | |
Description: |
Controls speaker volume and controls, limits results codes, and pulse dial make/break ratio. | |
Bit |
Value |
Function |
1, 0 |
00 01 10 11 |
Low level volume Low level 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 - 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 |
7 |
0 |
Not used |
BIT-MAPPED REGISTER S23 | ||
Format |
AT [cmds] S23=n [cmds] | |
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 - 1 |
000 001 010 011 100 101 110 111 |
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 Sets serial port speed to 4800bps Sets serial port speed to 9600bps Sets serial port speed to 19200bps Sets serial port speed to >19200bps |
5, 4 |
00 01 10 11 |
Parity even Not used Parity odd Mark or No Parity |
7, 6 |
00 01 10 |
Guard tone disabled Guard tone disabled Guard tone 1800Hz enabled |
BIT-MAPPED REGISTER S27 | ||
Format |
AT [cmds] S27=n [cmds] | |
Range: |
0-111 | |
Unit: |
Bit-mapped | |
Description: |
Selects CCITT/Bell mode | |
Bit |
Value |
Function |
0-5 |
0 |
Not Used |
6 |
0 1 |
ITU/T mode Bell mode |
7 |
0 |
Not Used |
BIT-MAPPED REGISTER S28 | ||
Format |
AT [cmds] S28=n [cmds] | |
Range: |
0-31 | |
Unit: |
Bit-mapped | |
Description: |
Controls MNP connect speed | |
Bit |
Value |
Function |
0-5 |
0 |
Not Used |
6-7 |
00 01 10 |
Handshake at maximum possible speed Handshake at 1200bps Handshake at 4800bps |
BIT-MAPPED REGISTER S41 | ||
Format |
AT [cmds] S41=n [cmds] | |
Range: |
0-31 | |
Unit: |
Bit-mapped | |
Description: |
Selects compression, auto-retrain, flow control, and MNP mode. | |
Bit |
Value |
Function |
1 - 0 |
00 01 10 11 |
Data compression disabled MNP5 enabled V.42bis enabled MNP5 and V.42bis enabled |
2 |
0 1 |
Automatic retrain enabled Automatic retrain disabled |
3 |
0 1 |
Flow control disabled Flow control enabled |
4 |
0 1 |
Stream mode for MNP Block mode for MNP |
5-7 |
0 |
Not Used |
CONNECTION FAILURE CODES | |
Type: |
Register |
Format |
AT [cmds] S86? [cmds] |
Description: |
Reports codes which correspond to the possible causes of a connection failure |
Value |
Meaning |
0 |
Normal hang up |
4 |
Carrier signal lost |
5 |
No error-control detected for remote modem during feature negotiation |
9 |
No common protocol found |
12 |
No failure - remote modem disconnected normally |
13 |
Remote modem failed to respond after 10 re-transmissions same message |
14 |
Violation of negotiated protocol caused failure |
DCE LINE SPEED | |
Type: |
Register |
Format |
AT [cmds] S37=n [cmds] |
Description: |
Sets the maximum allowable data exchange rate attempted during handshake process. |
Command |
Function |
í S37=0 |
Automatic speed recognition |
S37=1 |
300bps |
S37=2 |
300bps |
S37=3 |
300bps |
S37=5 |
1200bps |
S37=6 |
2400bps |
S37=7 |
V.23 |
S37=8 |
4800bps |
S37=9 |
9600bps |
S37=10 |
12.0Kbps |
S37=11 |
14.4Kbps |
S37=12 |
7200bps |
ERROR CORRECTION NEGOTIATION | |
Type: |
Register |
Format |
AT [cmds] S36=n [cmds] |
Description: |
Selects the action of the modem if it fails to connect with the error-correction protocol set in &Q. |
Command |
Function |
S36=0 |
Hang up |
S36=1 |
Attempt a direct connection |
S36=3 |
Attempt a buffered connection |
S36=4 |
Attempt a connection at MNP2-4; if that fails, hang up. |
S36=5 |
Attempt a connection at MNP2-4; if that fails, attempt a direct connection. |
S36=7 |
Attempt a connection at MNP2-4; if that fails, attempt a buffered connection. |
ERROR CORRECTION/COMPRESSION | |||
Type: |
Register | ||
Format: |
AT [cmds] S46=n [cmds] | ||
Description: |
Selects active error correction and compression protocols | ||
Command |
Function | ||
S46=136 |
LAP-M only, no compression | ||
S46=138 |
LAP-M with V.42bis data compression |
FEATURE NEGOTIATION OPTIONS | |||
Type: |
Register | ||
Format: |
AT [cmds] S48=n [cmds] | ||
Description: |
Selects active error correction and compression protocols | ||
Command |
Function | ||
S48=0 |
Detection negotiation disabled, XID negotiation disabled | ||
S48=7 |
Detection negotiation and XID negotiation enabled | ||
S48=128 |
Fall-back to options set in S36 |
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 |
6 |
RTS/CTS & XON/XOFF flow control enabled |
HDLC ADDRESS/BSC SYNCHRONOUS CHARACTER | |
Type: |
Register |
Format |
AT [cmds] S20=n [cmds] |
Default: |
0 |
Range: |
0-255 |
Unit: |
Unidentified |
Description: |
Sets the HDLC address/BSC sychronous character |