PRACTICAL PERIPHERALS, INC. PM144HC II (VER. 2) Card Type Modem (asynchronous) Chipset Unidentified Maximum Data Rate 14.4Kbps Maximum Fax Rate 14.4Kbps Data Bus 8-bit ISA Fax Class Class I & II Data Modulation Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis Fax Modulation V.17, V.27ter, V.29 Error Correction/Compression MNP5, V.42bis [Image] CONNECTIONS Function Label Function Label Line in/out CN1 Line in/out CN2 SERIAL PORT ADDRESS SELECTION Setting JP1 3F8h (COM1:) Pins 1 & 2, 7 & 8 closed 2F8h (COM2:) Pins 1 & 2, 8 & 9 closed 3E8h (COM3:) Pins 2 & 3, 7 & 8 closed 2E8h (COM4:) Pins 2 & 3, 8 & 9 closed INTERRUPT SELECTION Setting JP1 IRQ2 Pins 10 & 11 closed IRQ3 Pins 11 & 12 closed IRQ4 Pins 5 & 6 closed IRQ5 Pins 4 & 5 closed SUPPORTED STANDARD COMMANDS Basic AT Commands +++, ‘comma’, A/ A, D, E, H, L, M, N, Q, V, W, X, Y, Z &D, &F, &K, &V, &W, &Y, &Z S-Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S30, S36, S38, S46, S48, S82 S86, S95, S108, S109, S110 Note: See MHI documentation for complete information. UNIDENTIFIED COMMANDS Command Default S37 0 S43 0 Proprietary AT Command Set AUTO-ANSWER MODE Type: Configuration Format: AT [cmds] &An [cmds] Description: Sets the mode the modem will operate in on auto-answer. Command Function &A0 Modem auto-answers in answer mode. &A1 Modem auto-answers in originate mode. AUTO-RETRAIN Type: Configuration Format: AT [cmds] &Bn [cmds] Description: Selects whether the modem will automatically perform a retrain sequence when line conditions change. Command Function &B0 Auto-retrain disabled. &B1 Auto-retrain enabled. CD SIGNAL Type: Configuration Format: AT [cmds] &Cn [cmds] Description: Controls the behaviour of the CD signal. Command Function &C0 CD forced high. &C1 CD forced high after carrier signal is detected. &C2 CD forced high except during disconnect. COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Qn [cmds] Description: Selects the communications mode the modem will use. Command Mode &Q0 Asynchronous direct mode. &Q5 Asynchronous V.42 reliable mode. &Q6 Buffered asynchronous mode. &Q8 Asynchronous MNP reliable mode. &Q9 Asynchronous V.42bis only mode. DISPLAY INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested about the modem. Command Function I0 Displays product identification code. I1 Displays ROM checksum. I2 Tests and reports ROM checksum. I3 Displays firmware revision. I4 Displays feature bitmap. EXTENDED RING Type: Register Format: AT [cmds] S101=n [cmds] Default: 0 Range: 0-255 Unit: Bit-mapped Description: Selects which extended ring types the modem will respond to. Bit Value Function 0 0 Do not respond to ring type A. 1 Respond to ring type A. 1 0 Do not respond to ring type B. 1 Respond to ring type B. 2 0 Do not respond to ring type C. 1 Respond to ring type C. 3 0 Do not respond to ring type D. 1 Respond to ring type D. 4 0 Do not respond to ring type E. 1 Respond to ring type E. 5 0 Do not respond to ring type F. 1 Respond to ring type F. 6 0 Do not respond to ring type G. 1 Respond to ring type G. 7 0 Report RING for all ring types. 1 Report RING n where n is the ring type. ON-LINE Type: Immediate Format: AT [cmds] On Description: Instructs the modem to return to on-line state. Command Function O0 Return to on-line state. O1 Return to on-line state and initiate retrain sequence. O3 Return to on-line state and initiate renegotiation sequence. PROTOCOL Type: Configuration Format: AT [cmds] Bn [cmds] Description: Selects the communication protocol for low-speed data calls. Command Protocol B0 Modem will use ITU-T V.22 at 1200bps. B1 Modem will use Bell 212A at 1200bps. B2 Modem will use ITU-T V.23 at receive 1200/transmit 75bps. B3 Modem will use ITU-T V.23 at receive 75/transmit 1200bps. B15 Modem will use ITU-T V.21 at 300bps. B16 Modem will use Bell 103A at 300bps. TRELLIS CODING Type: Configuration Format: AT [cmds] &Un [cmds] Description: Selects whether the modem will use trellis coding. Command Function &U0 Trellis coding enabled. &U1 Trellis coding disabled.