COMPUTER PERIPHERALS, INC. VIVA 28.8 INTERNAL DATA/FAX Modem Type Data (asynchronous)/Fax Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus 8-bit ISA Fax Class Class I Data Modulation Protocol Bell 103A/212A ITU-T V.22, V.22bis, V.23, V.32, V.32bis, V.34 Rockwell V.FC Fax Modulation Protocol ITU-T V.17, V.21CH2, V.27ter, V.29 Error Correction/Compression MNP5, V.42, V.42bis [Image] CONNECTIONS Purpose Location Purpose Location Line out CN1 Line in CN2 BASE I/O ADDRESS SELECTION Port SW1/1 SW1/2 COM1: (3F8h) On On COM2: (2F8h) Off On COM3: (3E8h) On Off COM4: (2E8h) Off Off INTERRUPT SELECTION IRQ SW1/3 SW1/4 SW1/5 SW1/6 SW1/7 SW1/8 3 On Off Off Off Off Off 4 Off On Off Off Off Off 5 Off Off On Off Off Off 7 Off Off Off Off On Off Proprietary AT Command Set ACCEPT AUTO-RELIABLE MODE Type: Immediate Format: AT [cmds] \U [cmds] Description: Accepts remote modem’s request for reliable link AUTO FALL FORWARD/FALLBACK Type: Configuration Format: AT [cmds] %Gn [cmds] Description: Selects auto fallback Command Function » %G0 Fallback disabled %G1 Fallback enabled AUTO-RELIABLE FALLBACK CHARACTER Type: Configuration Format: AT [cmds] %An [cmds] Default: Unidentified Range: 0-127 Unit: ASCII Description: Sets the character used as the auto-reliable fallback character. %A0 will disable this function. 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 Data is discarded \C1 Data is buffered \C2 Data is discarded, sets to normal mode and sends auto-reliable character to serial port. AUTO-RETRAIN Type: Configuration Format: AT [cmds] %En [cmds] Description: Selects auto-retrain mode Command Function » %E0 Auto-retrain disable. %E1 Auto-retrain enabled BIT-MAPPED REGISTER S14 Format AT [cmds] S14? [cmds] Default: Read-only Range: 0-255 Unit: Bit-mapped Description: Displays echo, result codes, result code display, dial mode, and answer/originate mode. Bit Value Function 0 0 Not used 1 0 Command echo disabled 1 Command echo enabled 2 0 Result codes enabled 1 Result codes disabled 3 0 Display result codes in numeric format 1 Display result codes in verbose format 4 0 Not used 5 0 Tone dial enabled 1 Pulse dial enabled 6 0 Not used 7 0 Answer mode enabled 1 Originate mode enabled BIT-MAPPED REGISTER S21 Format AT [cmds] S21? [cmds] Default: Read-only Range: 0-255 Unit: Bit-mapped Description: Displays jack type, CTS signal, low DTR action, DCD signal, DSR signal, and the long space disconnect function. Bit Value Function 0 0 Selects RJ-11, RJ-41S, or RJ45S jack 1 Selects RJ-12 or RJ-13 jack 1 0 Not used 2 0 CTS follows RTS 1 CTS forced high 4, 3 00 DTR signal ignored 01 Modem goes to command mode on low DTR 10 Modem disconnects on low DTR. Auto-Answer is disabled 11 Modem is initialized on low DTR 5 0 DCD forced high 1 DCD normal 6 0 DSR forced high 1 DSR normal 7 0 Long space disconnect function disabled 1 Long space disconnect function enabled BIT-MAPPED REGISTER S22 Format AT [cmds] S22? [cmds] Default: Read-only Range: 0-255 Unit: Bit-mapped Description: Displays speaker volume and controls, limits results codes, and make/break pulse ratio. Bit Value Function 1, 0 01 On volume 10 Medium level volume 11 High level volume 3, 2 00 Speaker off 01 Speaker off on carrier 10 Speaker always on 11 Speaker on during handshake 6, 5, 4 000 Basic result codes only enabled 100 Basic and connection speed result codes enabled 101 Basic and connection speed result codes 110 and dialtone detection enabled 111 All result codes except dialtone detection enabled All result codes enabled 7 0 39/61ms at 10pps (North America) 1 33/67ms at 10pps (Europe) BIT-MAPPED REGISTER S23 Format AT [cmds] S23? [cmds] Default: Read-only Range: 0-255 Unit: Bit-mapped Description: Displays remote digital loopback, DTE rate and parity, and guard tone. Bit Value Function 0 0 Remote digital loopback denied 1 Remote digital loopback allowed 3, 2, 1 000 Sets serial port speed to 0-300bps 001 Sets serial port speed to 600bps 010 Sets serial port speed to 1200bps 011 Sets serial port speed to 2400bps 100 Sets serial port speed to 4800bps 101 Sets serial port speed to 9600bps 110 Sets serial port speed to 19200bps 111 Sets serial port speed to 38400bps 5,4 01 Space Parity/No Parity 7, 6 00 Guard tone disabled 01 Guard tone 550Hz enabled 10 Guard tone 1800Hz enabled BIT-MAPPED REGISTER S27 Format AT [cmds] S27? [cmds] Default: Read-only Range: 0-255 Unit: Bit-mapped Description: Displays synchronous/asynchronous mode, Line type, clock source, and ITU-T/Bell modes. Bit Value Function 3, 1, 0 000 Asynchronous mode, serial port speed follows connect speed 001 Asynchronous command mode and synchronous 010 connect mode 011 Asynchronous command mode and synchronous connect mode 100 Asynchronous command mode on low DTR, synchronous connect mode on high DTR Hayes AutoSync™ mode 2 0 Dial up line 1 Leased line 5, 4 00 Internal transmit clock source 01 External transmit clock source 10 Remote transmit clock source 6 0 CCITT mode 1 Bell mode BREAK SEND Type: Configuration Format: AT [cmds] \Bn [cmds] Default: Unidentified Range: 0-9 Unit: .1 second Description: Sends break to modem BREAK TYPE Type: Configuration Format: AT [cmds] \Kn [cmds] Description: Configures action of break signal Command Break from DTE Modem receives Break received \B from remote modem \K0 Online command Break sent to Buffers cleared, mode enabled, remote modem and break sent to send no break to buffered cleared DTE remote modem \K1 Break sent to Break sent to Buffers cleared, remote modem and remote modem and break sent to buffered cleared buffered cleared DTE \K2 Online command Send break to Break sent mode enabled, remote modem immediately to send no break to immediately DTE remote modem \K3 Send break to Send break to Break sent remote modem remote modem immediately to immediately immediately DTE \K4 Online command Send break with Break sent with mode enabled, transmitted data received data to send no break to the DTE remote modem » \K5 Send break with Send break with Break sent with transmitted data transmitted data received data to the DTE CALLING TONE Type: Configuration Format: AT [cmds] -Cn [cmds] Description: Controls whether the DTE will allow the modem to send a 1300Hz calling tone when originating. Command Function » -C0 Disable calling tone -C1 Enable calling tone 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 Reliable mode enabled » \N3 Auto-reliable mode enabled \N4 LAPM mode enabled \N5 MNP mode enabled CONVERT TO RELIABLE MODE Type: Immediate Format: AT [cmds] \Y [cmds] Description: Initiates reliable mode link EXTENDED RESULT CODES Type: Configuration Format: AT [cmds] \Vn [cmds] Description: Selects extended result codes Command Function \V0 Extended result codes disabled \V1 MNP extended result codes enabled \V2 V.42 extended result codes 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 to DTE enabled » \Q3 RTS/CTS 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. INACTIVITY TIMER Type: Register Format: AT [cmds] S90=n [cmds] Default: 0 Range: 0-255 Unit: 1 minute Description: Sets the length of time that the modem does not receive information before it disconnects. S90=0 will disable. LINE SIGNAL QUALITY Type: Configuration Format: AT [cmds] %Qn [cmds] Default: Unidentified Range: 0-255 Description: Sets the line quality at which the modem will retrain. If the line quality drops below n, the modem will retrain. 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 MODULATION SELECTION Type: Configuration Format: AT [cmds] +MS=xx,y,zzz,aaa [cmds] Example: AT+MS10,0,4800,26400 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 1200/75 x=8 V.32 x=9 V.32bis » x=10 V.34 x=13 V.23 75/1200 x=64 Bell 103A x=69 Bell 212A x=74 V.FC y=0 Automode disabled y=1 Auto-detect highest speed enabled without V.8 (except for V.34) » y=2 Auto-detect highest speed enabled with V.8 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=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=21600 Set minimum or maximum transfer rate at 21600bps, 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. MODULATION SELECTION DISPLAY Type: Immediate Format: AT [cmds] +MS? [cmds] Description: Displays modulation, automode, minimum rate and maximum rate settings 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 ON-LINE IN RELIABLE MODE Type: Immediate Format: AT [cmds] \O [cmds] Description: Returns to on-line and requests reliable mode connection SWITCH TO NORMAL MODE Type: Immediate Format: AT [cmds] \Z [cmds] Description: Switches to normal mode from MNP mode TEST MODES Format AT [cmds] S16? [cmds] Default: Read-only Range: 0-255 Unit: Bit-mapped Description: Displays loopback tests, analog, digital, remote digital, and self tests. Bit Value Function 0 0 Local analog loopback not in progress 1 Local analog loopback in progress 1 0 Not used 2 0 Local digital loopback not in progress 1 Local digital loopback in progress 3 0 Modem not in remote digital loopback 1 Remote digital loopback in progress 4 0 Remote digital loopback not requested 1 Remote digital loopback requested 5 0 Remote digital loopback w/ self-test not in progress 1 Remote digital loopback w/ self-test in progress 6 0 Local analog loopback w/ self-test not in progress 1 Local analog loopback w/ self-test in progress 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 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 MAXIMUM STRING LENGTH Type: Configuration Format: AT [cmds] "O=n [cmds] Default: 16 Range: 6-250 Unit: 1 ASCII character Description: Selects string size for V.42bis compression 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