MOTOROLA, INC. MODEMSURFR 28800 INTERNAL Card Type Modem (asynchronous)/Fax Chip Set Unidentified Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus 8-bit ISA 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, V.34 Fax Modulation Protocol ITU-T V.17, V.21CH2, V.27ter, V.29 Error Correction/Compression MNP5, V.42, V.42bis [Image] CONNECTIONS Function Label Function Label Line out CN1 Line in CN2 SERIAL PORT ADDRESS Setting J1/A J1/B COM1 (3F8h) Closed Closed COM2 (2F8h) Closed Open COM3 (3E8h) Open Closed COM4 (2E8h) Open Open INTERRUPT Setting J1/C J1/D J1/E J1/F 2 Closed Open Open Open 3 Open Open Closed Open 4 Open Open Open Closed 5 Open Closed Open Open PLUG AND PLAY Setting J2/A J2/B J2/C J2/D Disabled Closed Closed Open Open Enabled Open Open Closed Closed Proprietary AT Command Set AUTO-RELIABLE FALLBACK CHARACTER Type: Configuration Format: AT [cmds] %An [cmds] Default: Unidentified Range: 1-127 Unit: ASCII Description: Sets the character used as the auto-reliable fallback character Note: %A0 Auto-reliable fallback character disabled AUTO-RELIABLE TIME BUFFER CONFIGURATION Type: Configuration Format: AT [cmds] \Cn [cmds] Description: Controls the handling of incoming data during auto-reliable time period Command Function \CO Disabled auto-reliable buffer \C1 Data is buffered for 4 seconds or 200 characters \C2 Switch to normal mode and sends auto-reliable character to serial port AUTO FALL FORWARD/FALLBACK Type: Configuration Format: AT [cmds] %Gn [cmds] Description: Selects auto fallback/fall forward Command Function %G0 Fallback/fall forward disabled %G1 Fallback/fall forward enabled AUTO FALLBACK CHARACTER Type: Register Format: AT [cmds] S43=n [cmds] Default: 13 Range: 0-127 Unit: ASCII Description: Set auto fallback character during MNP negotiation Note: S43=0 disabled S43=(1-127) enabled COMPRESSION Type: Configuration Format: AT [cmds] %Cn [cmds] Description: Selects data compression Command Function %C0 Data compression disabled %C1 Data compression enabled CONNECT MODE Type: Configuration Format: AT [cmds] \Nn [cmds] Description: Sets connect mode Command Function \N0 Normal mode enabled \N1 Direct mode enabled \N2 MNP reliable mode enabled \N3 LAPM, MNP, or normal mode enabled \N4 LAPM or MNP mode enabled DISPLAY CONNECT MESSAGE Type Register Format AT [cmds] S41? [cmds] Description Displays connect message Command Function S41=0 CONNECT/DTE to modem speed enabled S41=1 CONNECT/carrier, protocol, and compression enabled S41=2 CONNECT/modem to modem speed enabled FLOW CONTROL Type: Configuration Format: AT [cmds] \Gn [cmds] Description: Selects modem port flow control Command Function \G0 Flow control disabled \G1 Flow control enabled FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] \Qn [cmds] Description: Sets type of flow control used by modem Command Function \Q0 Flow control disabled \Q1 XON/XOFF flow control enabled \Q2 CTS flow control by DTE enabled \Q3 CTS/RTS flow control enabled INACTIVITY TIMER Type: Configuration Format: AT [cmds] \Tn [cmds] Default: 0 Range: 0-90 Unit: 1 minute Description: Sets the length of time that the modem does not receive information before it disconnects LOCK SERIAL PORT Type: Configuration Format: AT [cmds] \Jn [cmds] Description: Sets operation of serial port speed Command Function \J0 Serial speed locked \J1 Serial speed follows connect speed MAXIMUM BLOCK SIZE FOR TRANSMISSION Type: Configuration Format: AT [cmds] \An [cmds] Description: Sets the maximum transmittable block size Command Function \A0 MNP block size is 64 characters \A1 MNP block size is 128 characters \A2 MNP block size is 192 characters \A3 MNP block size is 256 characters EXTENDED RESULT CODES Type: Configuration Format: AT [cmds] \Vn [cmds] Description: Selects extended result codes Command Function \V0 Extended result codes disabled \V1 Extended result codes enabled V.32 RETRAIN Type: Register Format: AT [cmds] S42=n [cmds] Description: Selects action the modem will take during bad line quality on V.32/32bis connection Command Function S42=0 Auto-retrain disabled, hang up S42=1 Auto-retrain on line quality problem enabled S42=2 Modem ignores line quality problems S42=3 Unidentified V.42 DETECTION PHASE Type: Configuration Format: AT [cmds] -Jn [cmds] Description: Controls V.42 detection Command Function -J0 V.42 detection disabled -J1 V.42 detection enabled V.42bis COMPRESSION CONTROL Type: Configuration Format: AT [cmds] "Hn [cmds] Description: Controls V.42bis data compression Command Function "H0 V.42bis disabled "H1 V.42bis when transmitting enabled "H2 V.42bis when receiving enabled "H3 V.42bis when transmitting/receiving enabled XON/XOFF PASS-THROUGH Type: Configuration Format: AT [cmds] \Xn [cmds] Description: Selects whether XON/XOFF signals are sent to remote modem Command Function \X0 XON/XOFF signals trapped by local modem \X1 XON/XOFF passed through local modem