CARDINAL TECHNOLOGIES, INC. =========================== CONNECTA 33.6K INTERNAL FAX MODEM (2420) Card Type Modem (synchronous/asynchronous) Chip Set TI Maximum Modem Rate 33.6Kbps Maximum Fax Rate 14.4Kbps Data Modulation Bell 103A/212A, ITU-T V.21, V.22, Protocol V.22bis, V.23, V.32, V.32bis, V.34, Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29 Protocol Error MNP5, V.42, V.42bis Correction/Compression Fax Class Class I Data Bus 8-bit ISA Card Size Half-length, half-height card +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Label | Function | Label | |------------------------------------------------------------| | Line in | CN1 | Line out | CN2 | +------------------------------------------------------------+ +------------------------------------------------------------+ | PLUG & PLAY SELECTION | |------------------------------------------------------------| | Setting | JP1 | JP2 | JP3 | JP4 | JP5 | JP6 | JP7 | JP8 | |-----------+------+-----+-----+-----+-----+-----+-----+-----| |Plug & Play| Open |Open |Open |Open |Open |Open |Open |Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT ADDRESS | |------------------------------------------------------------| | Setting | JP1 | JP2 | JP3 | |---------------+--------------+--------------+--------------| | COM1 (3F8h) | Closed | Closed | Closed | |---------------+--------------+--------------+--------------| | COM2 (2F8h) | Open | Closed | Closed | |---------------+--------------+--------------+--------------| | COM3 (3E8h) | Closed | Open | Closed | |---------------+--------------+--------------+--------------| | COM4 (2E8h) | Open | Open | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT | |------------------------------------------------------------| | Setting | JP4 | JP5 | JP6 | JP7 | JP8 | |---------+----------+---------+---------+---------+---------| | 2 | Closed | Open | Open | Open | Open | |---------+----------+---------+---------+---------+---------| | 3 | Open | Closed | Open | Open | Open | |---------+----------+---------+---------+---------+---------| | 4 | Open | Open | Closed | Open | Open | |---------+----------+---------+---------+---------+---------| | 5 | Open | Open | Open | Closed | Open | |---------+----------+---------+---------+---------+---------| | 7 | Open | Open | Open | Open | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | MISCELLANEOUS TECHNICAL NOTES | |------------------------------------------------------------| | Note: The modem can be upgraded to 56Kbps via Flash ROM | | from Cardinal Technologies, Inc. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SUPPORTED COMMAND SET | |------------------------------------------------------------| | Basic AT Commands | |------------------------------------------------------------| | AT, +++, A/ | |------------------------------------------------------------| | A, B, E, F, H, M, O, P, T, V, X | |------------------------------------------------------------| | &G, &T, &W, &Z | |------------------------------------------------------------| | S Registers | |------------------------------------------------------------| | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, | | S18, S25, S38 | |------------------------------------------------------------| | | |------------------------------------------------------------| | Note: See MHI Help File for full command documentation. | +------------------------------------------------------------+ PROPRIETARY AT COMMAND SET +------------------------------------------------------------+ | ADDITIONAL RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &An [cmds] | |--------------+---------------------------------------------| | Description: | Enables or disables additional result code | | | subsets | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &A0 | ARQ result codes disabled | |--------------+---------------------------------------------| | i &A1 | ARQ result codes enabled | |--------------+---------------------------------------------| | &A2 | V.32 modulation indicator added | |--------------+---------------------------------------------| | &A3 | Protocol indicators added | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK HANDLING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Yn [cmds] | |--------------+---------------------------------------------| | Description: | Sets destructive/nondestructive break | | | handling | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &Y0 | Destructive break not sent | |--------------+---------------------------------------------| | &Y1 | Expedited, destructive break sent | |--------------+---------------------------------------------| | &Y2 | Expedited, non-destructive break sent | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA SET READY (DSR) | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Sn [cmds] | |--------------+---------------------------------------------| | Description: | Selects DSR options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &S0 | DSR forced high | |--------------+---------------------------------------------| | &S1 | DSR high only while modem is handshaking or | | | connected | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED LOWER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Un [cmds] | |--------------+---------------------------------------------| | Description: | Sets slowest allowed connection speed if &N | | | is set to 1 or higher. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &U0 | No minimum connect speed. | |--------------+---------------------------------------------| | &U1 | Set minimum connect speed to 300bps. | |--------------+---------------------------------------------| | &U2 | Set minimum connect speed to 1200bps. | |--------------+---------------------------------------------| | &U3 | Set minimum connect speed to 2400bps. | |--------------+---------------------------------------------| | &U4 | Set minimum connect speed to 4800bps. | |--------------+---------------------------------------------| | &U5 | Set minimum connect speed to 7200bps. | |--------------+---------------------------------------------| | &U6 | Set minimum connect speed to 9600bps. | |--------------+---------------------------------------------| | &U7 | Set minimum connect speed to 12Kbps. | |--------------+---------------------------------------------| | &U8 | Set minimum connect speed to 14.4Kbps. | |--------------+---------------------------------------------| | &U9 | Set minimum connect speed to 16.8Kbps. | |--------------+---------------------------------------------| | &U10 | Set minimum connect speed to 19.2Kbps. | |--------------+---------------------------------------------| | &U11 | Set minimum connect speed to 21.6Kbps. | |--------------+---------------------------------------------| | &U12 | Set minimum connect speed to 24Kbps. | |--------------+---------------------------------------------| | &U13 | Set minimum connect speed to 26.4Kbps. | |--------------+---------------------------------------------| | &U14 | Set minimum connect speed to 28.8Kbps. | |--------------+---------------------------------------------| | &U15 | Set minimum connect speed to 31.2Kbps. | |--------------+---------------------------------------------| | &U16 | Set minimum connect speed to 33.6Kbps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED UPPER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Nn [cmds] | |--------------+---------------------------------------------| | Description: | Sets required connection speed if &U is set | | | to 0; otherwise, sets fastest allowed | | | connection speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &N0 | No maximum connect speed. | |--------------+---------------------------------------------| | &N1 | Fixed link rate of 300bps. | |--------------+---------------------------------------------| | &N2 | Fixed link rate of 1200bps. | |--------------+---------------------------------------------| | &N3 | Fixed link rate of 2400bps. | |--------------+---------------------------------------------| | &N4 | Fixed link rate of 4800bps. | |--------------+---------------------------------------------| | &N5 | Fixed link rate of 7200bps. | |--------------+---------------------------------------------| | &N6 | Fixed link rate of 9600bps. | |--------------+---------------------------------------------| | &N7 | Fixed link rate of 12Kbps. | |--------------+---------------------------------------------| | &N8 | Fixed link rate of 14.4Kbps. | |--------------+---------------------------------------------| | &N9 | Fixed link rate of 16.8Kbps. | |--------------+---------------------------------------------| | &N10 | Fixed link rate of 19.2Kbps. | |--------------+---------------------------------------------| | &N11 | Fixed link rate of 21.6Kbps. | |--------------+---------------------------------------------| | &N12 | Fixed link rate of 24Kbps. | |--------------+---------------------------------------------| | &N13 | Fixed link rate of 26.4Kbps. | |--------------+---------------------------------------------| | &N14 | Fixed link rate of 28.8Kbps. | |--------------+---------------------------------------------| | &N15 | Fixed link rate of 31.2Kbps. | |--------------+---------------------------------------------| | &N16 | Fixed link rate of 33.6Kbps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA CARRIER DETECT (DCD) | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Cn [cmds] | |--------------+---------------------------------------------| | Description: | Selects whether the DCD option is enabled | | | or disabled | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &C0 | DCD override enabled | |--------------+---------------------------------------------| | &C1 | DCD enabled after carrier signal detected | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA TERMINAL READY (DTR) | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Dn [cmds] | |--------------+---------------------------------------------| | Description: | Selects modem response to DTR | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &D0 | DTR override | |--------------+---------------------------------------------| | &D1 | DTR toggle causes online command mode | |--------------+---------------------------------------------| | i &D2 | Normal DTR operations | |--------------+---------------------------------------------| | &D3 | Resets on receipt of DTR | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | DL | Re-dial last number | |--------------+---------------------------------------------| | DP | Pulse dialing enabled | |--------------+---------------------------------------------| | DR | Answer mode enabled; originate mode | | | disabled following handshake initiation. | |--------------+---------------------------------------------| | DS=n | Dial stored telephone number n | |--------------+---------------------------------------------| | DT | Tone dialing enabled/Pulse dialing disabled | |--------------+---------------------------------------------| | DW | Dialing resumed following dial tone | | | detection | |--------------+---------------------------------------------| | D, | Dialing paused for amount of time specified | | | in S8 register | |--------------+---------------------------------------------| | D"WXY" | Optional method of denoting telephone | | | numbers. Letters enclosed in quotes are | | | interpreted as numbers according to the | | | system found on a telephone keypad. | |--------------+---------------------------------------------| | D! | Flash function initiated. Modem commanded | | | to go off-hook for specified time before | | | returning on-hook. | |--------------+---------------------------------------------| | D@ | Wait for Quite 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/ | Delays 125 ms. Before proceeding with dial | | | string | |--------------+---------------------------------------------| | D^ | Calling tone enable/disable for current | | | call only | |--------------+---------------------------------------------| | D; | Modem returned to idle state after dialing. | | | The semicolon can only be placed at the end | | | of the dial command. | |--------------+---------------------------------------------| | D& | Waiting for AT&T "bong" tone | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISCONNECT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Yn [cmds] | |--------------+---------------------------------------------| | Description: | Commands disconnection configuration | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | Y0 | Profile 0 in NVRAM | |--------------+---------------------------------------------| | Y1 | Profile 1 in NVRAM | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERROR CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Mn [cmds] | |--------------+---------------------------------------------| | Description: | Sets error control for connections at | | | 1200bps and higher | |--------------+---------------------------------------------| | Command | Mode | |--------------+---------------------------------------------| | &M0 | Error control disabled | |--------------+---------------------------------------------| | &M1 | Automatic selection of error control and | | | non-error control | |--------------+---------------------------------------------| | &M2 | Enable error control link | |--------------+---------------------------------------------| | &M3 | Speaker on until modem connects | |--------------+---------------------------------------------| | i &M4 | Normal/ARQ mode. | |--------------+---------------------------------------------| | &M5 | ARQ mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | FACTORY DEFAULT PROFILE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &F [cmds] | |--------------+---------------------------------------------| | Description: | Sets values in active profile to values | | | found in the default profile | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &F0 | Standard factory configuration | |--------------+---------------------------------------------| | &F1 | Factory configuration1; hardware flow | | | control template | |--------------+---------------------------------------------| | &F2 | Factory configuration 2; software flow | | | control template | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Kn [cmds] | |--------------+---------------------------------------------| | Description: | Enables/disables flow control | |--------------+---------------------------------------------| | Command | Line Type | |--------------+---------------------------------------------| | &K0 | Flow control disabled | |--------------+---------------------------------------------| | &K1 | Hardware, RTS/CTS flow control enabled | |--------------+---------------------------------------------| | &K2 | Software, XON/XOFF flow control enabled | |--------------+---------------------------------------------| | i &K3 | Transparent software, XON/XOFF flow control | | | enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | HELP | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | n$ | |--------------+---------------------------------------------| | Description: | Displays help for commands. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $ | Display help screen for single letter AT | | | commands | |--------------+---------------------------------------------| | &$ | Display help screen for extended commands | |--------------+---------------------------------------------| | D$ | Display help screen for dial commands | |--------------+---------------------------------------------| | S$ | Display help screen for S-registers | +------------------------------------------------------------+ +------------------------------------------------------------+ | PULSE DIALING RATIO | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Pn [cmds] | |--------------+---------------------------------------------| | Description: | Selects pulse dial make/break ratio | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &P0 | 39/61ms at 10pps (North America) | |--------------+---------------------------------------------| | &P1 | 33/67ms at 10pps (Europe) | +------------------------------------------------------------+ +------------------------------------------------------------+ | RECEIVE DATA FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &In [cmds] | |--------------+---------------------------------------------| | Description: | Enables RD flow control options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i&I0 | Software flow control disabled | |--------------+---------------------------------------------| | &I1 | XON/XOFF signals passed through local modem | |--------------+---------------------------------------------| | &I2 | XON/XOFF signals trapped by local modem | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPEAT PREVIOUS COMMAND | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | A> | |--------------+---------------------------------------------| | Description: | Repeats previous command continuously. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT INFORMATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] In [cmds] | |--------------+---------------------------------------------| | Description: | Displays information requested | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | I0 | Reports four digit product code | |--------------+---------------------------------------------| | I1 | Reports firmware checksum | |--------------+---------------------------------------------| | I2 | Reports RAM checksum | |--------------+---------------------------------------------| | I3 | Reports ID string | |--------------+---------------------------------------------| | I4 | Reports current modem settings | |--------------+---------------------------------------------| | I5 | Reports NVRAM settings | |--------------+---------------------------------------------| | I6 | Reports data connection information | |--------------+---------------------------------------------| | I7 | Reports manufacturer and model information | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Qn [cmds] | |--------------+---------------------------------------------| | Description: | Enables modem to send result codes to the | | | DTE | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | iQ0 | Result code sending enabled | |--------------+---------------------------------------------| | Q1 | Result code sending disabled | |--------------+---------------------------------------------| | Q2 | Result code sending only in originate mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | RTS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Rn [cmds] | |--------------+---------------------------------------------| | Description: | Selects RTS/CTS options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &R0 | Reserved | |--------------+---------------------------------------------| | i &R1 | RTS ignored | |--------------+---------------------------------------------| | &R2 | Received data to computer only on RTS | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT RATE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Bn [cmds] | |--------------+---------------------------------------------| | Description: | Manages the serial port rate | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &B0 | Serial speed follows connect speed | |--------------+---------------------------------------------| | &B1 | Serial speed locked | |--------------+---------------------------------------------| | &B2 | Fixed in ARQ mode, variable in non-ARQ mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | SOFT RESET | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] Zn [cmds] | |--------------+---------------------------------------------| | Description: | Restores modem profiles previously saved in | | | non-volatile RAM using the &W command. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | Z0 | Restore setting to profile selected by ATY | | | command | |--------------+---------------------------------------------| | Z1 | Restore setting NVRAM profile 0 | |--------------+---------------------------------------------| | Z2 | Restore setting NVRAM profile 1 | |--------------+---------------------------------------------| | Z3 | Restores setting to factory default profile | | | 0 | |--------------+---------------------------------------------| | Z4 | Restores setting to factory default profile | | | 1 | |--------------+---------------------------------------------| | Z5 | Restores setting to factory default profile | | | 2 | +------------------------------------------------------------+ +------------------------------------------------------------+ | TRANSMIT DATA FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Hn [cmds] | |--------------+---------------------------------------------| | Description: | Enables TD flow control options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &H0 | Flow control disabled | |--------------+---------------------------------------------| | &H1 | CTS hardware flow control enabled | |--------------+---------------------------------------------| | &H2 | Software flow control enabled | |--------------+---------------------------------------------| | &H3 | Hardware and software flow control enabled | +------------------------------------------------------------+ S(STATUS) -REGISTERS +------------------------------------------------------------+ | BIT-MAPPED REGISTER S13 | |------------------------------------------------------------| | Format: | AT [cmds] S13=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-174 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls reset, dial mode | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | 0 | Unidentified | | | | | | | 1 | Resets when DTR drops | |------+-------+---------------------------------------------| | 1 | 0 | Unidentified | | | | | | | 1 | Resets non-MNP transmit buffer from 1.5K to | | | | 128bytes | |------+-------+---------------------------------------------| | 2 | 0 | Unidentified | | | | | | | 1 | Sets backspace key to delete | |------+-------+---------------------------------------------| | 3 | 0 | Unidentified | | | | | | | 1 | On DTR signal, auto dials number stared at | | | | NVRAM position 0 | |------+-------+---------------------------------------------| | 4 | 0 | Unidentified | | | | | | | 1 | At power on/reset, auto dials number stared | | | | at NVRAM position 0 | |------+-------+---------------------------------------------| | 5 | 0 | Enables V.32bis ASL mode | | | | | | | 1 | Disables V.31bis ASL mode | |------+-------+---------------------------------------------| | 6 | 0 | Enables quick retrains | | | | | | | 1 | Disables quick retrains | |------+-------+---------------------------------------------| | 7 | 0 1 | Unidentified | | | | | | | | Disconnect on escape code | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S15 | |------------------------------------------------------------| | Format: | AT [cmds] S15=n [cmds] | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Disable/Enable MNP | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | 0 | Enable ARQ/MNP for V.22 | | | | | | | 1 | Disable ARQ/MNP for V.22 | |------+-------+---------------------------------------------| | 1 | 0 | Enable ARQ/MNP for V.22bis | | | | | | | 1 | Disable ARQ/MNP for V.22bis | |------+-------+---------------------------------------------| | 2 | 0 | Enable ARQ/MNP for V.32/V.32bis/V.32terbo | | | | | | | 1 | Enable ARQ/MNP for V.32/V.32bis/V.32terbo | |------+-------+---------------------------------------------| | 3 | 0 | Enable MNP handshake | | | | | | | 1 | Disable MNP handshake | |------+-------+---------------------------------------------| | 4 | 0 | Enable MNP level 4 | | | | | | | 1 | Disable MNP level 4 | |------+-------+---------------------------------------------| | 5 | 0 | Enable MNP level 3 | | | | | | | 1 | Disable MNP level 3 | |------+-------+---------------------------------------------| | 6 | 0 | MNP compatibility | | | | | | | 1 | MNP incompatibility | |------+-------+---------------------------------------------| | 7 | 0 1 | Enable V.42 operation | | | | | | | | Disable V.42 operation | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST MODES | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S16=n [cmds] | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls touch tone dialing test. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | 0 | Reserved | |------+-------+---------------------------------------------| | 1 | 0 | Touch tone dialing test not in progress | | | | | | | 1 | Touch tone dialing test in progress | |------+-------+---------------------------------------------| | 2 | 0 | Test pattern generation not in progress | | | | | | | 1 | Test pattern generation in progress | |------+-------+---------------------------------------------| | 3-7 | 0 | Reserved | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S19=n [cmds] | |--------------+---------------------------------------------| | Unit: | 10 seconds | |--------------+---------------------------------------------| | Description: | Maximum duration of DTE and DCE inactivity | | | allowed prior to initiating hang-up | | | process. | |------------------------------------------------------------| | Note: S19=0 disables the timer and allows indefinite | | inactivity. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK LENGTH | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S21=n [cmds] | |--------------+---------------------------------------------| | Unit: | 10ms | |--------------+---------------------------------------------| | Description: | Sets duration of breaks sent from the modem | | | to the computer | |------------------------------------------------------------| | Note: Applies to MNP or V.42 mode only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XON | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S22=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used to represent XON | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XOFF | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S23=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used to represent XOFF | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format | AT [cmds] S27=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Enables/disables modulation protocols | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | 0 | Disable ITU-T modulation at 300bps for | | | | overseas calls: in V.21 mode, the modem | | | 1 | answers both overseas and domestic calls, | | | | but only originates V.21 calls | | | | | | | | Enable ITU-T modulation at 300bps for | | | | overseas calls: in V.21 mode, the modem | | | | answers both overseas and domestic calls, | | | | but only originates V.21 calls | |------+-------+---------------------------------------------| | 1 | 0 | Disable unencoded modulation in V.32 mode | | | | | | | 1 | Enable unencoded modulation in V.32 mode | |------+-------+---------------------------------------------| | 2 | 0 | Enable V.32 modulation | | | | | | | 1 | Disable V.32 modulation | |------+-------+---------------------------------------------| | 3 | 0 | Enable 2100Hz answer tone | | | | | | | 1 | Disable 2100Hz answer tone | |------+-------+---------------------------------------------| | 4 | 0 | Disable V.23 fallback mode | | | | | | | 1 | Enable V.23 fallback mode | |------+-------+---------------------------------------------| | 5 | 0 | Enable V.32bis mode | | | | | | | 1 | Disable V.32bis mode | |------+-------+---------------------------------------------| | 6 | 0 | Reserved | |------+-------+---------------------------------------------| | 7 | 0 1 | Enable codes | | | | | | | | Disable codes and enters software | | | | compatibility mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION TIME | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S28=n [cmds] | |--------------+---------------------------------------------| | Unit: | .1 second | |--------------+---------------------------------------------| | Description: | Sets V.32 duration | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S28=0 | Eliminates the V.32 answer tone for a | | | faster connection | |--------------+---------------------------------------------| | S28=8 | Times are in .1 second | |--------------+---------------------------------------------| | S28=255 | Disable connections except V.32 at 9600bps | +------------------------------------------------------------+ +------------------------------------------------------------+ | FALLBACK TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S29=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | .01 second | |--------------+---------------------------------------------| | Description: | Sets the duration of the V.21 answer mode | | | fallback timer | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S32 | |------------------------------------------------------------| | Format: | AT [cmds] S32=n [cmds] | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Description: | Select setup for 28.8 and higher speed | | | modems | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------------+----------------------------------| | 0 | 0 | Disable V.8 call indicate | | | | | | | 1 | Enable V.8 call indicate | |-----------+-------------+----------------------------------| | 1 | 0 | Disable V.8 mode | | | | | | | 1 | Enable V.8 mode | |-----------+-------------+----------------------------------| | 2 | 0 | Enable V.FC modulation | | | | | | | 1 | Disable V.FC modulation | |-----------+-------------+----------------------------------| | 3 | 0 | Enable V.34 modulation | | | | | | | 1 | Disable V.34 modulation | |-----------+-------------+----------------------------------| | 4 | 0 | Enable V.34+ modulation | | | | | | | 1 | Disable V.34+ modulation | |-----------+-------------+----------------------------------| | 5-7 | 0 | Reserved | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S33 | |------------------------------------------------------------| | Format: | AT [cmds] S33=n [cmds] | |----------------+-------------------------------------------| | Range: | 0-255 | |----------------+-------------------------------------------| | Description: | Disable/enable data rates | |------------------------------------------------------------| | Bit | Value | Function | |----------+--------+----------------------------------------| | 0 | 0 | Enable 2400 symbol rate | | | | | | | 1 | Disable 2400 symbol rate | |----------+--------+----------------------------------------| | 1 | 0 | Enable 2743 symbol rate | | | | | | | 1 | Disable 2743 symbol rate | |----------+--------+----------------------------------------| | 2 | 0 | Enable 2800 symbol rate | | | | | | | 1 | Disable 2800 symbol rate | |----------+--------+----------------------------------------| | 3 | 0 | Enable 3000 symbol rate | | | | | | | 1 | Disable 3000 symbol rate | |----------+--------+----------------------------------------| | 4 | 0 | Enable 3200 symbol rate | | | | | | | 1 | Disable 3200 symbol rate | |----------+--------+----------------------------------------| | 5 | 0 | Enable 3429 symbol rate | | | | | | | 1 | Disable 3429 symbol rate | |----------+--------+----------------------------------------| | 6 | 0 | Reserved | |----------+--------+----------------------------------------| | 7 | 0 | Enable shaping | | | | | | | 1 | Disable shaping | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S34 | |------------------------------------------------------------| | Format: | AT [cmds] S34=n [cmds] | |----------------+-------------------------------------------| | Range: | 0-255 | |----------------+-------------------------------------------| | Description: | Disable/enable trellis encoding | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 0 | 0 | Enable 8S-2D trellis encoding | | | | | | | 1 | Disable 8S-2D trellis encoding | |----------+-------+-----------------------------------------| | 1 | 0 | Enable 16S-4D trellis encoding | | | | | | | 1 | Disable 16S-4D trellis encoding | |----------+-------+-----------------------------------------| | 2 | 0 | Enable 32S-2D trellis encoding | | | | | | | 1 | Disable 32S-2D trellis encoding | |----------+-------+-----------------------------------------| | 3 | 0 | Enable 64S-4D trellis encoding | | | | | | | 1 | Disable 64S-4D trellis encoding | |----------+-------+-----------------------------------------| | 4 | 0 | Reserved | |----------+-------+-----------------------------------------| | 5 | 0 | Enable TX level deviation | | | | | | | 1 | Disable TX level deviation | |----------+-------+-----------------------------------------| | 6 | 0 | Enable pre-emphasis | | | | | | | 1 | Disable pre-emphasis | |----------+-------+-----------------------------------------| | 7 | 0 | Enable pre-coding | | | | | | | 1 | Disable pre-coding | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S41 | |------------------------------------------------------------| | Format: | AT [cmds] S41=n [cmds] | |----------------+-------------------------------------------| | Range: | 0-255 | |----------------+-------------------------------------------| | Description: | Enable/disable distinctive ring | |------------------------------------------------------------| | Bit | Value | Function | |----------+----------+--------------------------------------| | 0 | 0 | Disable distinctive ring | | | | | | | 1 | Enable distinctive ring | |----------+----------+--------------------------------------| | 1-7 | 0 | Reserved | +------------------------------------------------------------+