CARDINAL TECHNOLOGIES,INC. 2400V42 (INTERNAL), 2450V42 (INTERNAL) Card Type Modem (asynchronous) Chip Set Unidentified Maximum Data Rate 2400bps Data Bus 8-bit ISA Data Modulation Protocol Bell 103/212A ITU-T V.21, V.22, V.22bis Error Correction/Compression MNP5, V.42, V.42bis [Image] CONNECTIONS Function Label Function Label Line out/in CN1 Line in/out CN2 SERIAL PORT ADDRESS Setting IRQ SW1/A SW1/B SW1/C SW1/D COM1 (3F8h) 4 Closed Closed Closed Open COM2 (2F8h) 3 Open Closed Open Closed COM3 (3E8h) 4 Closed Open Closed Open COM4 (2E8h) 3 Open Open Open Closed INTERRUPT SELECTION Setting P3 2 Pins 2 & 3 closed 5 Pins 1 & 2 closed Disabled IRQ2 & IRQ5 Open SUPPORTED COMMAND SET Basic AT Commands AT, ‘+++’, ‘Comma’, A/ A, B, E, H, L, M, O, Q, S, V, X, Y, Z, &C, &D, &F, &G, &L, &P, &S, &T, &W, &Y, &Z Extended AT Commands \A, \B, \C, \G, \J, \L, \O, \U, \X, \Y, \Z S Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S25, S26, S37 Special Commands "H, "O Note: Please see MHI Help file for full command documentation. Proprietary AT Command Set 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 Note: AT%A0 will disable this function. BIT MAPPED REGISTERS Register Default S14 Unidentified S20 16 S21 Unidentified S22 Unidentified S23 Unidentified S27 Unidentified S100 Unidentified BREAK TYPE Type: Configuration Format: AT [cmds] \Kn [cmds] Description: Configures action of break signal Command Break from DTE Break from Break Modem DTE received receives \B Reliable/Normal from remote mode Direct mode modem \K0 Online command Online Buffers Break sent mode enabled, command mode cleared, to remote send no break enabled, break sent modem and to remote modem send break to DTE buffers to remote cleared modem immediately \K1 Break sent to Send break Buffers Break sent remote modem to remote cleared, to remote and buffers modem break sent modem and cleared immediately to DTE buffers cleared \K2 Online command Online Break sent Send break mode enabled, command mode immediately to remote send no break enabled, to DTE modem to remote modem send break immediately to remote modem immediately \K3 Send break to Send break Break sent Send break remote modem to remote immediately to remote immediately modem to DTE modem immediately immediately \K4 Online command Online Break sent Send break mode enabled, command mode with with send no break enabled, received transmitted to remote modem send break data to the data to remote DTE modem immediately \K5 Send break with Send break Break sent Send break transmitted to remote with with data modem received transmitted immediately data to the data DTE COMPRESSION Type: Configuration Format: AT [cmds] %Cn [cmds] Description: Selects MNP5 data compression Command Function %C0 MNP5 disabled %C1 MNP5 enabled CONNECT MODE Type: Configuration Format: AT [cmds] \Nn [cmds] Description: Controls the type of connection the modem will operate in Command Function \N0 Normal mode enabled \N1 Direct mode enabled \N2 MNP reliable mode enabled \N3 Auto-reliable mode enabled \N4 V.42 reliable mode enabled DIAL Type: Immediate Format: AT [cmds] D<#> [cmds] Description: Dials telephone number according to any modifiers included in the string Note: Any combination of modifiers can be used to produce the desired dial functions in sequence. Modifier Function P Pulse dialing enabled R Answer mode enabled, originate mode disabled following handshake initiation Sn Dial stored telephone number n T Tone dialing enabled W Dialing resumed following dial tone detection , Dialing paused for amount of time specified in S8 register ! Modem commanded to go off-hook for specified time before returning on-hook @ Wait for quiet answer ; Modem returned to command state after dialing DISPLAY CONFIGURATION Type: Immediate Format: AT [cmds] \S [cmds] Description: Displays current modem settings EXTENDED RESULT CODES Type: Configuration Format: AT [cmds] \Vn [cmds] Description: Select standard or extended result codes Command Function \V0 Standard result codes enabled \V1 Extended MNP result codes enabled \V2 Extended V.42 and MNP result codes 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 DCE 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. Note: AT\T0 will disable timer. LINE SPEED Type: Configuration Format: AT [cmds] %Nn [cmds] Description: Controls maximum DCE line speed Command Function %N0 Enable maximum DCE speed %N1 Maximum DCE speed set to 300bps %N2 Maximum DCE speed set to 300bps %N3 Maximum DCE speed set to 300bps %N5 Maximum DCE speed set to 1200bps %N6 Maximum DCE speed set to 2400bps REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports modem code I1 Reports ROM checksum I2 Tests and reports ROM checksum I3 Reports version information V.42/MNP - DETECTION PHASE Type: Configuration Format: AT [cmds] -Jn [cmds] Description: Controls V.42/MNP detection Command Function -J0 V.42 detection disabled -J1 V.42 detection enabled, then MNP detection -J2 MNP detection enabled, then LAPM detection V.42bis - DICTIONARY SIZE Type: Configuration Format: AT [cmds] "Nn [cmds] Default: Unidentified Range: 512-1024 Unit: Strings Description: Select V.42 dictionary size