UNIDENTIFIED ============ INTERNAL 1/2 CARD MODEM Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 9600bps Maximum Fax Rate 14.4Kbps Data Bus 8-bit ISA Fax Class Class 1 Data Modulation Bell 103 & 212A Protocol ITU-T V.21, V.22, V.22bis, V.32, V.32bis Fax Modulation ITU-T V.17, V27ter, V29 Protocol Error MNP 1 - 5, ITU-T V.42, V.42bis Correction/Compression +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |------------------+----------+-------------------+----------| | Line-in | CN1 | Line-out | CN2 | +------------------------------------------------------------+ +------------------------------------------------------------+ | ADDRESS SELECT | |------------------------------------------------------------| | COM/Address | SW1/1 | SW1/2 | |--------------------+-------------------+-------------------| | i COM2/2F8h | Off | On | |--------------------+-------------------+-------------------| | COM1/3F8h | Off | Off | |--------------------+-------------------+-------------------| | COM3/3E8h | On | Off | |--------------------+-------------------+-------------------| | COM4/2E8h | On | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT SELECT | |------------------------------------------------------------| | IRQ | SW1/3 | SW1/4 | |--------------------+-------------------+-------------------| | i IRQ3 | Off | On | |--------------------+-------------------+-------------------| | IRQ2 | On | On | |--------------------+-------------------+-------------------| | IRQ4 | Off | Off | |--------------------+-------------------+-------------------| | IRQ5 | On | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | %A - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] %An [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 %A3 | |-------------+----------------------------------------------| | Description | Sets the auto-reliable fall-back ASCII | | | character. The default is 13. | +------------------------------------------------------------+ +------------------------------------------------------------+ | %C - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] %Cn [cmds] | |-------------+----------------------------------------------| | Example: | AT &Z1 %C0 D5555555 | |-------------+----------------------------------------------| | Description | Enables/disables MNP 5 data compression. | |------------------------------------------------------------| | Command | Function | |------------------+-----------------------------------------| | i %C1 | MNP 5 data compression enabled. | |------------------+-----------------------------------------| | %C0 | MNP 5 data compression disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | %E - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] %En [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 %E0 D5555555 | |-------------+----------------------------------------------| | Description | Enables/disables the auto-retrain function | | | for V,22bis and V.32 protocols. | |------------------------------------------------------------| | Command | Function | |-------------------+----------------------------------------| | i %E1 | Auto-retrain function enabled. | |-------------------+----------------------------------------| | %E0 | Auto-retrain function disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | %G - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] %Gn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 %G0 D5555555 | |-------------+----------------------------------------------| | Description | Enables/disables the | | | auto-fall-back/fall-forward function for | | | V,22bis and V.32 protocols. | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | i %E0 | Auto-fall-back/fall-forward function | | | disabled. | |----------------+-------------------------------------------| | %E1 | Auto-fall-back/fall-forward function | | | enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \A - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \An [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \An D5555555 | |-------------+----------------------------------------------| | Description | Sets the limits for the character block | | | size. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \A - PROPRIETARY COMMAND | |------------------------------------------------------------| | Command | Function | |----------+-------------------------------------------------| | i \A3 | 256 characters. | |----------+-------------------------------------------------| | \A0 | 64 characters. | |----------+-------------------------------------------------| | \A1 | 128 characters. | |----------+-------------------------------------------------| | \A2 | 192 characters. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \B - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Bn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Bn D5555555 | |-------------+----------------------------------------------| | Description | Sets the transmit break length from 0 to 900 | | | in 100ms increments. The default is 0ms (n = | | | 0). | +------------------------------------------------------------+ +------------------------------------------------------------+ | \C - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Cn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Cn D5555555 | |-------------+----------------------------------------------| | Description | Sets the limits for the auto-reliable | | | buffer. | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \C0 | Auto-reliable buffer disabled. | |--------------+---------------------------------------------| | \C1 | Buffers characters for 4 seconds or until | | | 200 characters are in the buffer. | |--------------+---------------------------------------------| | \C2 | Auto-reliable buffer disabled. Modem goes | | | to normal mode if an auto-reliable | | | character is received. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \G - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Gn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Gn D5555555 | |-------------+----------------------------------------------| | Description | Enables/disables modem port flow control | |------------------------------------------------------------| | Command | Function | |-----------------+------------------------------------------| | i \G0 | Port flow control disabled. | |-----------------+------------------------------------------| | \G1 | XON/XOFF port flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \J - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Jn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Jn D5555555 | |-------------+----------------------------------------------| | Description | Enables/disables the serial port data | | | transfer rate adjustment feature. | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \J0 | Data transfer rate adjustment disabled | | | (serial port allowable data transfer rate | | | is constant). | |--------------+---------------------------------------------| | \J1 | Data transfer rate adjustment enabled | | | (serial port data transfer rate depends on | | | the data transfer rate established in the | | | connection). | +------------------------------------------------------------+ +------------------------------------------------------------+ | \K - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Kn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Kn D5555555 | |-------------+----------------------------------------------| | Description | Sets the remote modem's response to a break | | | issued by the local modem. | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \K5 | Local modem in connect state, reliable or | | | normal mode: | | \K0, \K2, | | | \K4 | Nondestructive/non-expedited handling of | | | buffered data. | | \K1 | | | | Remote modem goes into the command mode and | | \K3 | does not return the break signal. | | | | | | Destructive, expedited handling of buffered | | | data | | | | | | Non-destructive/expedited handling of | | | buffered data. | |--------------+---------------------------------------------| | i \K5, \K4 | Local modem in command state, reliable or | | | normal mode: | | \K0, \K1 | | | | Non-destructive/non-expedited handling of | | \K2, \K3 | buffered data. | | | | | | Destructive/expedited handling of buffered | | | data. | | | | | | Non-destructive/expedited handling of | | | buffered data. | |--------------+---------------------------------------------| | i \K5, \K1, | Local modem in connect state, direct mode: | | \K3 | | | | Remote modem immediately returns break. | | \K0, \K2, | | | \K4 | Remote modem immediately returns break, | | | then goes into the command state. | |--------------+---------------------------------------------| | | Local modem in connect state, normal mode, | | | break received at modem port, break sent to | | i \K5, \K4 | serial port: | | | | | \K0, \K1 | Non-destructive/non-expedited handling of | | | buffered data. | | \K2, \K3 | | | | Destructive/expedited handling of buffered | | | data. | | | | | | Non-destructive/expedited handling of | | | buffered data. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \N - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Nn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Nn D5555555 | |-------------+----------------------------------------------| | Description | Selects the error-correction mode. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | i \N3 | V.42 auto-reliable mode enabled. | |---------------+--------------------------------------------| | \N0 | Normal mode enabled. | |---------------+--------------------------------------------| | \N1 | Direct mode enabled. | |---------------+--------------------------------------------| | \N2 | MNP reliable mode enabled. | |---------------+--------------------------------------------| | \N4 | V.42 reliable mode enabled. | |---------------+--------------------------------------------| | \N5 | LAPM to normal mode enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \O - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Immediate | |-------------+----------------------------------------------| | Format: | AT [cmds] \O | |-------------+----------------------------------------------| | Example: | AT \O | |-------------+----------------------------------------------| | Description | Commands the modem to originate a RELIABLE | | | link. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \Q - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Qn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Qn D5555555 | |-------------+----------------------------------------------| | Description | Selects options for serial port flow | | | control. | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \Q3 | Bi-directional hardware flow control | | | enabled. | |--------------+---------------------------------------------| | \Q0 | Flow control disabled. | |--------------+---------------------------------------------| | \Q1 | Bi-directional XON/XOFF flow control | | | enabled. | |--------------+---------------------------------------------| | \Q2 | One-way hardware flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \T - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Tn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Tn D5555555 | |-------------+----------------------------------------------| | Description | Sets the limit for the inactivity time-out | | | function in minutes, | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \T0 | Inactivity time-out function disabled. | |--------------+---------------------------------------------| | \T(1 to 90) | Sets the time limit (in minutes) at which | | | the inactivity time-out function is | | | enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \U - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Immediate | |-------------+----------------------------------------------| | Format: | AT [cmds] \U | |-------------+----------------------------------------------| | Example: | AT \U | |-------------+----------------------------------------------| | Description | Commands the modem to grant an auto-reliable | | | link request. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \V - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Vn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Vn D5555555 | |-------------+----------------------------------------------| | Description | Enables/disables modified result codes. | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \V0 | Normal result code format. | |--------------+---------------------------------------------| | \V1 | Append "/ARQ" to verbose CONNECT result | | | codes during an error-control connection. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \X - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] \Xn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 \Xn D5555555 | |-------------+----------------------------------------------| | Description | Selects the XON/XOFF pass-through mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \X - PROPRIETARY COMMAND | |------------------------------------------------------------| | Command | Function | |---------+--------------------------------------------------| | i \X0 | Process flow control characters only. | |---------+--------------------------------------------------| | \X1 | Process flow control characters, then | | | pass-through to the local or remote modem. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \Y - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Immediate | |-------------+----------------------------------------------| | Format: | AT [cmds] \Y | |-------------+----------------------------------------------| | Example: | AT \Y | |-------------+----------------------------------------------| | Description | Commands the modem to go into the RELIABLE | | | mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | \Z - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Immediate | |-------------+----------------------------------------------| | Format: | AT [cmds] \Z | |-------------+----------------------------------------------| | Example: | AT \Z | |-------------+----------------------------------------------| | Description | Commands the modem to go into the NORMAL | | | mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | -C - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] -Cn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 -Cn D5555555 | |-------------+----------------------------------------------| | Description | Enables/disables calling tone in data mode. | |------------------------------------------------------------| | Command | Function | |-------------------------+----------------------------------| | i -C0 | Calling tone disabled. | |-------------------------+----------------------------------| | -C1 | Calling tone enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | -J - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] -Jn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 -Jn D5555555 | |-------------+----------------------------------------------| | Description | Enables/disables the V.42 detect phase. | |------------------------------------------------------------| | Command | Function | |--------------------+---------------------------------------| | i -J1 | V.42 detect phase enabled. | |--------------------+---------------------------------------| | -J0 | V.42 detect phase disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | -V - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Immediate | |-------------+----------------------------------------------| | Format: | AT [cmds] -V | |-------------+----------------------------------------------| | Example: | AT -V | |-------------+----------------------------------------------| | Description | Commands the modem to display the firmware | | | version. | +------------------------------------------------------------+ +------------------------------------------------------------+ | "H - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] "Hn [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 "Hn D5555555 | |-------------+----------------------------------------------| | Description | Selects options for V.42bis data | | | compression. | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i "H3 | V.42bis enabled for both transmission and | | | reception of data. | |--------------+---------------------------------------------| | "H0 | V.42bis disabled. | |--------------+---------------------------------------------| | "H1 | V.42bis enabled for transmission of data | | | only. | |--------------+---------------------------------------------| | "H2 | V.42bis enabled for reception of data only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | "O - PROPRIETARY COMMAND | |------------------------------------------------------------| | Type: | Configuration | |-------------+----------------------------------------------| | Format: | AT [cmds] "On [cmds] | |-------------+----------------------------------------------| | Example: | AT M3 "On D5555555 | |-------------+----------------------------------------------| | Description | Sets the limit to the number of characters | | | in the V.42bis character string. The limit | | | can include any number from 6 to 250 | | | characters. The default is 32. | +------------------------------------------------------------+ +------------------------------------------------------------+ | S14 - PROPRIETARY BIT-MAPPED REGISTER | |------------------------------------------------------------| | Value Range: | Bit-mapped | |---------------------+--------------------------------------| | Default: | 170 | |---------------------+--------------------------------------| | Type: | Read/Write | |---------------------+--------------------------------------| | In Stored Profile?: | Yes | |---------------------+--------------------------------------| | Description: | Bit-mapped configuration register. | |------------------------------------------------------------| | Bit | Value | Function | |-------------+---------+------------------------------------| | 0 | i 0 | Not used | |-------------+---------+------------------------------------| | 1 | i 1 | Off-line echo enabled (E1). | | | | | | | 0 | Off-line echo disabled (E0). | |-------------+---------+------------------------------------| | 2 | i 0 | Result codes enabled (Q0). | | | | | | | 1 | Result codes disabled (Q1). | |-------------+---------+------------------------------------| | 3 | i 1 | Verbose result codes enabled (V1). | | | | | | | 0 | Numeric result codes enabled (V0). | |-------------+---------+------------------------------------| | 4 | i 0 | Dumb mode disabled. | | | | | | | 1 | Dumb mode enabled. | |-------------+---------+------------------------------------| | 5 | i 1 | Pulse dialing enabled (P). | | | | | | | 0 | Tone dialing enabled (T). | |-------------+---------+------------------------------------| | 6 | i 0 | Not used. | |-------------+---------+------------------------------------| | 7 | i 1 | Originate mode enabled. | | | | | | | 0 | Answer enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | S21 - PROPRIETARY BIT-MAPPED REGISTER | |------------------------------------------------------------| | Value Range: | Bit-mapped | |-----------------+------------------------------------------| | Default: | 48 | |-----------------+------------------------------------------| | Type: | Read/Write | |-----------------+------------------------------------------| | In Stored | Yes | | Profile?: | | |-----------------+------------------------------------------| | Description: | Bit-mapped configuration register. | |------------------------------------------------------------| | Bit | Value | Function | |----------+--------+----------------------------------------| | 0 | i 0 | Not used. | |----------+--------+----------------------------------------| | 1 | i 0 | Not used. | |----------+--------+----------------------------------------| | 2 | i 0 | CTS signal follows RTS signal (&R0). | | | | | | | 1 | CTS signal follows DCD signal (&R1). | |----------+--------+----------------------------------------| | 4,3 | i 10 | Modem hangs up when a DTR signal is | | | | detected (&D2). | | | 00 | | | | | Modem ignores DTR signal (&D0). | | | 01 | | | | | Modem switches to command mode when a | | | 11 | DTR signal is detected (&D1). | | | | | | | | Modem resets to defaults when a DTR | | | | signal is detected (&D3). | |----------+--------+----------------------------------------| | 5 | i 1 | DCD enabled when a carrier signal is | | | | detected, disabled when carrier signal | | | 0 | is lost (&C1). | | | | | | | | DCD enabled (&C0). | |----------+--------+----------------------------------------| | 6 | i 0 | DSR enabled (&S0). | | | | | | | 1 | DSR enabled at handshake initiation | | | | and disabled at hang-up initiation | | | | (&S1). | |----------+--------+----------------------------------------| | 7 | i 0 | Long-space disconnect function | | | | disabled (Y0). | | | 1 | | | | | Long-space disconnect function enabled | | | | (Y1). | +------------------------------------------------------------+ +------------------------------------------------------------+ | S22 - PROPRIETARY BIT-MAPPED REGISTER | |------------------------------------------------------------| | Value Range: | Bit-mapped | |-----------------+------------------------------------------| | Default: | 118 | |-----------------+------------------------------------------| | Type: | Read/Write | |-----------------+------------------------------------------| | In Stored | Yes | | Profile?: | | |-----------------+------------------------------------------| | Description: | Bit-mapped configuration register. | |------------------------------------------------------------| | Bit | Value | Function | |----------+---------+---------------------------------------| | 1,0 | i 10 | Speaker set to medium volume (L2). | | | | | | | 00 | Not used. | | | | | | | 01 | Speaker set to low volume (L1 or L0). | | | | | | | 11 | Speaker set to high volume (L3). | +------------------------------------------------------------+ +------------------------------------------------------------+ | S22 - PROPRIETARY BIT-MAPPED REGISTER | |------------------------------------------------------------| | Bit | Value | Function | |-------+-------+--------------------------------------------| | 3,2 | i 01 | Speaker enabled while dialing, enabled | | | | until carrier signal is detected, then | | | 00 | disabled (M1). | | | | | | | 10 | Speaker disabled (M0). | | | | | | | 11 | Speaker enabled (M2). | | | | | | | | Speaker disabled while dialing, enabled | | | | until carrier signal is detected, then | | | | disabled (M3). | |-------+-------+--------------------------------------------| | 6,5,4 | i | Full result codes, dial tone wait, and | | | 111 | busy tone detect enabled (X4). | | | | | | | 000 | Basic result codes enabled, blind dialing | | | | only (X0). | | | 001 | | | | | Not used. | | | 010 | | | | | Not used. | | | 011 | | | | | Not used. | | | 100 | | | | | Full result codes enabled, blind dialing | | | 101 | only (X1). | | | | | | | 110 | Full result codes and dial tone wait | | | | enabled (X2). | | | | | | | | Full result codes enabled, blind dialing | | | | only, busy tone detect enabled (X3). | |-------+-------+--------------------------------------------| | 7 | i 0 | 39/61 make/break ratio enabled (&P0). | | | | | | | 1 | 33/67 make/break ratio enabled (&P1). | +------------------------------------------------------------+ +------------------------------------------------------------+ | S23 - PROPRIETARY BIT-MAPPED REGISTER | |------------------------------------------------------------| | Value Range: | Bit-mapped | |-----------------+------------------------------------------| | Default: | 15 | |-----------------+------------------------------------------| | Type: | Read/Write | |-----------------+------------------------------------------| | In Stored | Yes | | Profile?: | | |-----------------+------------------------------------------| | Description: | Bit-mapped configuration register. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+--------+---------------------------------------| | 0 | i 1 | Grant remote loopback request (&T4). | | | | | | | 0 | Ignore remote loopback request (&T5). | |-----------+--------+---------------------------------------| | 3,2,1 | i 111 | 38.4Kbps or 57.6Kbps data rate | | | | enabled. | | | 000 | | | | | 0 - 600bps data rate enabled. | | | 010 | | | | | 2400bps data rate enabled. | | | 011 | | | | | 4800bps data rate enabled. | | | 100 | | | | | 7200bps data rate enabled. | | | 101 | | | | | 9600bps or 14.4Kbps data rate | | | 110 | enabled. | | | | | | | | 19.2Kbps data rate enabled. | |-----------+--------+---------------------------------------| | 5,4 | i 00 | Even parity enabled. | | | | | | | 01 | Space parity enabled. | | | | | | | 10 | Odd parity enabled. | | | | | | | 11 | Parity disabled. | |-----------+--------+---------------------------------------| | 7,6 | i 00 | Guard tone disabled (&G0). | | | | | | | 01 | 550Hz guard tone enabled (&G1). | | | | | | | 10 | 1800Hz guard tone enabled (&G2). | | | | | | | 11 | Not used. | +------------------------------------------------------------+ +------------------------------------------------------------+ | S27 - PROPRIETARY BIT-MAPPED REGISTER | |------------------------------------------------------------| | Value Range: | Bit-mapped | |-----------------+------------------------------------------| | Default: | 0 | |-----------------+------------------------------------------| | Type: | Read/Write | |-----------------+------------------------------------------| | In Stored | Yes | | Profile?: | | |-----------------+------------------------------------------| | Description: | Bit-mapped configuration register. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 1,0 | i 00 | Asynchronous mode enabled (&Q0). | | | | | | | 01 | Synchronous connect mode and | | | | asynchronous off-line command mode | | | 10 | enabled (&Q1). | | | | | | | 11 | Synchronous connect mode and | | | | asynchronous off-line command mode | | | | enabled (&Q1). | | | | | | | | Synchronous mode enabled. | |----------+-------+-----------------------------------------| | 2 | i 0 | Switched network line mode enabled | | | | (&L0). | | | 1 | | | | | Leased-line mode enabled (&L1). | |----------+-------+-----------------------------------------| | 3 | i 0 | Not used. | |----------+-------+-----------------------------------------| | 5,4 | i 00 | Transmit clock generated by the modem | | | | (&X0). | | | 01 | | | | | DTE generates clock (&X1). | | | 10 | | | | | Modem generates clock from the receive | | | 11 | carrier signal (&X2). | | | | | | | | Not used. | |----------+-------+-----------------------------------------| | 6 | i 0 | CCITT V.22 protocol enabled (B0). | | | | | | | 1 | Bell 212A protocol enabled (B1). | |----------+-------+-----------------------------------------| | 7 | i 0 | Not used. | +------------------------------------------------------------+