RACAL-DATACOM ============= RMD 3222 Card Type Modem (synchronous/asynchronous) Chipset Unidentified Maximum Data Rate 14.4Kbps Data Modulation Bell 103A, 208, 212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.33 Error MNP5, V.42, V.42bis Correction/Compression Data Bus Serial +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Label | Function | Label | |-------------------+-------+------------------------+-------| | PREVIOUS button | BT1 | Leased telephone line | CN2 | | | | out | | |-------------------+-------+------------------------+-------| | 1 button | BT2 | Switched telephone | CN3 | | | | line out | | |-------------------+-------+------------------------+-------| | 2 button | BT3 | AC power in | CN4 | |-------------------+-------+------------------------+-------| | 3 button | BT4 | Diagnostic connector | CN5 | |-------------------+-------+------------------------+-------| | NEXT button | BT5 | Serial port | CN6 | |-------------------+-------+------------------------+-------| | ENTER button | BT6 | LCD display | LCD | |-------------------+-------+------------------------+-------| | Telephone line in | CN1 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | MISCELLANEOUS TECHNICAL NOTES | |------------------------------------------------------------| | There are several jumpers on this board. Their exact | | locations and functions are unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SUPPORTED STANDARD COMMANDS | |------------------------------------------------------------| | Basic AT Commands | |------------------------------------------------------------| | +++, 'comma', A/ | |------------------------------------------------------------| | A, B, E, H, L, M, N, O, P, T, V, X, Y, Z | |------------------------------------------------------------| | &C, &D, &F, &G, &K, &M, &Q, &S, &T, &W, &Y, &Z | |------------------------------------------------------------| | Extended AT Commands | |------------------------------------------------------------| | \T, \V, \X | |------------------------------------------------------------| | S-Registers | |------------------------------------------------------------| | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, | | S18, S25, S26 | |------------------------------------------------------------| | V.25bis Commands | |------------------------------------------------------------| | CIC, CRN, CRS, DIC, PRN | |------------------------------------------------------------| | Note: See MHI help file for complete information. | +------------------------------------------------------------+ +------------------------------------------------------------+ | UNIDENTIFIED COMMANDS | |------------------------------------------------------------| | Command | Default | |------------------------------+-----------------------------| | | | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | BREAK TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Kn [cmds] | |--------------+---------------------------------------------| | Description: | Configures the modem's reaction to | | | receiving a break signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \K0 | Modem ignores received break signal. | |--------------+---------------------------------------------| | \K1 | Buffers are cleared, break is transmitted | | | immediately. | |--------------+---------------------------------------------| | \K2 | Buffers are not cleared, break is | | | transmitted immediately. | |--------------+---------------------------------------------| | i \K3 | Buffers are not cleared, break is | | | transmitted in sequence with data. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CARRIAGE RETURN DELAY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Fn [cmds] | |--------------+---------------------------------------------| | Description: | Selects whether the modem will insert a | | | delay the length of five characters after | | | sending any character that would cause a | | | printer or teletype's carriage to return. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \F0 | Carriage return delay enabled. | |--------------+---------------------------------------------| | i \F1 | Carriage return delay disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Nn [cmds] | |--------------+---------------------------------------------| | Description: | Controls the type of connection the modem | | | will make. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \N0 | Normal mode enabled. | |--------------+---------------------------------------------| | \N1 | Reliable mode enabled. | |--------------+---------------------------------------------| | \N2 | Normal mode enabled. | |--------------+---------------------------------------------| | i \N3 | Auto-reliable mode enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CTS AND RTS SIGNALS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Rn [cmds] | |--------------+---------------------------------------------| | Description: | Controls the behaviour of the CTS and RTS | | | signals. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &R0 | CTS follows RTS. | |--------------+---------------------------------------------| | &R1 | CTS follows DTR. | |--------------+---------------------------------------------| | &R2 | CTS normal. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] D<#>;[cmds] | |--------------+---------------------------------------------| | Description: | Dials the telephone number indicated | | | according to any modifiers included in the | | | string. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | DLn | If connection is not successful, modem will | | | dial the number stored in memory location | | | n. | |--------------+---------------------------------------------| | DP | Pulse dialing enabled. | |--------------+---------------------------------------------| | DR | Answer mode enabled; originate mode | | | disabled following handshake initiation. | | | This must be the last modifier except for a | | | semicolon. | |--------------+---------------------------------------------| | DS=n | Dial stored telephone number n. | |--------------+---------------------------------------------| | DT | Tone dialing enabled. | |--------------+---------------------------------------------| | DW | Dialing resumed following dial tone | | | detection. | |--------------+---------------------------------------------| | D, | Dialing paused for amount of time specified | | | in S8 register. | |--------------+---------------------------------------------| | D! | Flash function initiated. Modem commanded | | | to go off-hook for specified time before | | | returning on-hook. | |--------------+---------------------------------------------| | D@ | Wait for Quiet Answer function enabled. | | | Modem waits until a "quiet answer," a | | | ring-back signal followed by silence up to | | | the time specified in S7, is received prior | | | to executing the rest of the dial string. | |--------------+---------------------------------------------| | D; | Modem returned to idle state after dialing. | | | The semicolon can only be placed at the end | | | of the dial command. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY CONFIGURATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] &Vn [cmds] | |--------------+---------------------------------------------| | Description: | Displays the indicated part of the modem's | | | configuration. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &V0 | Displays the command settings, stored | | | profiles, and stored telephone numbers 0 | | | through 5. | |--------------+---------------------------------------------| | &V1 | Displays all stored telephone numbers. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY CONFIGURATION - MNP | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \S [cmds] | |--------------+---------------------------------------------| | Description: | Displays the settings of the modem's | | | MNP-related commands. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 displays ROM checksum result. | |--------------+---------------------------------------------| | I3 | Displays firmware revision. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERROR CORRECTION TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Pn [cmds] | |--------------+---------------------------------------------| | Description: | Selects which types of error correction the | | | modem will attempt to use. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \P0 | Modem will use V.42 error correction only. | |--------------+---------------------------------------------| | \P1 | Modem will use MNP error correction only. | |--------------+---------------------------------------------| | i \P2 | Modem will use V.42 or MNP error | | | correction. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Qm,n [cmds] | |--------------+---------------------------------------------| | Description: | Selects the type or types of flow control | | | the modem will use. | |--------------+---------------------------------------------| | Note: | Two types of flow control may be active at | | | any time. There is no difference between | | | the values of m and n. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \Q0 | Flow control disabled. | |--------------+---------------------------------------------| | \Q1 | CTS/RTS flow control enabled. | |--------------+---------------------------------------------| | \Q2 | DC1/DC2 flow control enabled. | |--------------+---------------------------------------------| | i \Q3 | DC1/DC3 flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCK SERIAL PORT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Bn [cmds] | |--------------+---------------------------------------------| | Description: | Sets operation of serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \B0 | Serial port speed follows connect speed. | |--------------+---------------------------------------------| | i \B1 | Serial port speed locked. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Cn [cmds] | |--------------+---------------------------------------------| | Description: | Selects which classes of MNP the modem will | | | attempt to use. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \C1 | Modem may use MNP class 1 only. | |--------------+---------------------------------------------| | \C2 | Modem may use MNP class 2 or 1. | |--------------+---------------------------------------------| | \C3 | Modem may use MNP class 3 and below. | |--------------+---------------------------------------------| | \C4 | Modem may use MNP class 4 and below. | |--------------+---------------------------------------------| | i \C5 | Modem may use all MNP classes (5 and | | | below). | +------------------------------------------------------------+ +------------------------------------------------------------+ | PROTOCOL/SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Fn [cmds] | |--------------+---------------------------------------------| | Description: | Selects the modulation protocol and line | | | speed the modem will attempt to connect | | | with. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i F0 | Auto-detect fastest common protocol. | |--------------+---------------------------------------------| | F1 | Attempt to connect with V.21 at 300bps. | |--------------+---------------------------------------------| | F2 | Attempt to connect with V.22 at 600bps. | |--------------+---------------------------------------------| | F3 | Attempt to connect with V.23 at 1200/75bps. | |--------------+---------------------------------------------| | F4 | Attempt to connect with V.22 at 1200bps. | |--------------+---------------------------------------------| | F5 | Attempt to connect with V.22bis at 2400bps. | |--------------+---------------------------------------------| | F6 | Attempt to connect with V.32 at 9600bps. | |--------------+---------------------------------------------| | F7 | Attempt to connect with V.32 at 14.4Kbps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODE - DIALING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Dn [cmds] | |--------------+---------------------------------------------| | Description: | Selects whether the modem will display | | | DIALING when it goes off hook to dial a | | | telephone number. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \D0 | DIALING result code disabled. | |--------------+---------------------------------------------| | \D1 | DIALING result code enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Qn [cmds] | |--------------+---------------------------------------------| | Description: | Enables modem to send result codes to the | | | DTE. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i Q0 | Result codes enabled. | |--------------+---------------------------------------------| | Q1 | Result codes disabled. | |--------------+---------------------------------------------| | Q2 | Result codes enabled in originate mode | | | only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Mn [cmds] | |--------------+---------------------------------------------| | Description: | Selects whether the modem will attempt to | | | connect with V.42bis data compression. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \M0 | V.42bis data compression enabled. | |--------------+---------------------------------------------| | \M1 | V.42bis data compression disabled. | +------------------------------------------------------------+ Proprietary V.25bis Command Set +------------------------------------------------------------+ | COMMAND SET - AT | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | RHA | |--------------+---------------------------------------------| | Description: | Resets the modem to AT command mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REQUEST LISTED NUMBERS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | RLN | |--------------+---------------------------------------------| | Description: | Requests the modem to return the list of | | | stored numbers. | +------------------------------------------------------------+