DIAMOND MULTIMEDIA SYSTEMS, INC.
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 |
SUPPORTED COMMAND SET |
Basic AT Commands |
AT, ‘+++’, ‘comma’, A/ |
A, B, C, D, E, F, H, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z |
&A, &B, &C, &D, &F, &G, &J, &K, &L, &M, &P, &Q, &R, &S, &T, &V, &W, &X, &Y, &Z |
Extended AT Commands |
\A, \B, \C, \E, \G, \J, \K, \L, \O, \Q, \T, \U, \V, \W, \X, \Y, \Z |
%A, %L, %Q, %TT |
S Registers |
S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S24, S25, S26, S29, |
S38, S39, S46, S48, S82, S86, S90, S91, S92, S95, S99, S108, S109, S110, 201 |
Special Commands |
*H, "H, "N, "O,-J, -K, -Q, )M, @M, :E, #CID, +MS? |
Note: See MHI Help File for full command documentation. |
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 |