SUPRA DIAMOND
SUPRAEXPRESS 288
Modem Type | Data (synchronous/asynchronous)/Fax |
Maximum Data Rate | 28.8Kbps |
Maximum Fax Rate | 14.4Kbps |
Data Bus | External |
Fax Class | Class I |
Data Modulation Protocol | Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34 Rockwell V.FC |
Fax Modulation Protocol | ITU-T V.17, V.27ter, V.29 |
Error Correction/Compression | MNP5, V.42, V.42bis |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Line out | CN1 | RS-232/422 | CN3 |
Line in | CN2 | DC power | CN4 |
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
OH | Red | On | Modem is off-hook |
OH | Red | Off | Modem is on-hook |
RD | Red | Blinking | Modem is receiving data |
RD | Red | Off | Modem is not receiving data |
SD | Red | Blinking | Modem is transmitting data |
SD | Red | Off | Modem is not transmitting data |
PWR | Red | On | Power is on |
PWR | Red | Off | Power is off |
Proprietary AT Command Set
AUTO FALL FORWARD/FALLBACK | |
Type: | Configuration |
Format: | AT [cmds] %Gn [cmds] |
Example: | AT %G1 &W <CR> |
Description: | Selects auto fall forward/fallback. |
| Command | Function |
| %G1 | Fall forward/fallback disabled. |
| » %G0 | Fall forward/fallback enabled. |
COMPRESSION AND ERROR CORRECTION | |
Type: | Configuration |
Format: | AT %Cn |
Example: | AT %C0 *Y1 <CR> |
Description: | Selects data compression and error correction. |
| Command | Function |
| %C0 | Data compression disabled. |
| %C1 | Data compression enabled. |
| %C2 | Data correction enabled. |
| » %C3 | Data compression and correction 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. |
| \N4 | LAPM/MNP mode enabled. |
MODULATION SELECTION | |
Type: | Configuration |
Format: | AT [cmds] +MS=xx,y,zzz,aaa [cmds] |
Example: | AT +MS11,1,300,28800 &W <CR> |
Description: | Sets options for active protocol. The transfer rates specified by z and a must be valid for the protocol selected. |
| Command | Function |
| x=0 | V.21 |
| x=1 | V.22 |
| x=2 | V.22bis |
| x=3 | V.23 |
| x=9 | V.32 |
| x=10 | V.32bis |
| » x=11 | V.34 |
| x=64 | Bell 103 |
| x=69 | Bell 212A |
| x=74 | V.FC |
y =0 | Automode disabled. |
y =1 | Auto-detect highest speed enabled. |
z, a =300 | Set minimum or maximum transfer rate at 300bps, respectively. |
z, a =1200 | Set minimum or maximum transfer rate at 1200bps, respectively. |
z, a =2400 | Set minimum or maximum transfer rate at 2400bps, respectively. |
z, a =4800 | Set minimum or maximum transfer rate at 4800bps, respectively. |
z, a =7200 | Set minimum or maximum transfer rate at 7200bps, respectively. |
z, a =9600 | Set minimum or maximum transfer rate at 9600bps, respectively. |
z, a =12000 | Set minimum or maximum transfer rate at 12000bps, respectively. |
z, a =14400 | Set minimum or maximum transfer rate at 14400bps, respectively. |
z, a =16800 | Set minimum or maximum transfer rate at 16800bps, respectively. |
z, a =19200 | Set minimum or maximum transfer rate at 19200bps, respectively. |
z, a =24000 | Set minimum or maximum transfer rate at 24000bps, respectively. |
z, a =26400 | Set minimum or maximum transfer rate at 26400bps, respectively. |
z, a =28800 | Set minimum or maximum transfer rate at 28800bps, respectively. |
REPORT INFORMATION | |
Type: | Immediate |
Format: | AT [cmds] In [cmds] |
Example: | AT I1 O <CR> |
Description: | Displays modem properties. |
Command | Function |
I0 | Reports product code. |
I1 | Reports ROM checksum result. |
I2 | Reports ROM checksum OK or ERROR |
I3 | Reports firmware version. |
I4 | Reports current command settings. |
I5 | Reports copyright information. |
I7 | Reports configuration. |
I10 | Reports modem’s optional features |
RETRAIN | |
Type: | Configuration |
Format: | AT [cmds] %E1 [cmds] |
Example: | AT %E1 <CR> |
Description: | Requests a retrain. |
Command | Function |
| %E0 | Disabled |
| » %E1 | Enabled |