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 [Image] 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 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 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 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 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 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 Description: Requests a retrain. Command Function %E0 Disabled » %E1 Enabled