(TXT) View Source
# MAGICXPRESS
MX33V - R
Card Type Modem/Fax card
Chip Set Unidentified
I/O Options Line out, phone in, microphone in,
speaker out
Maximum Modem Rate 33.6Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103A/212A
Protocol
ITU-T V34, V.32bis, V.32, V.22bis,
V.23, V.22, V.21, Rockwell V.FC
Fax Modulation ITU-T V.17, V.27ter, V.29, T.4, T.30
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
Fax Class Class I & II
Data Bus 8-bit ISA
Card Size Half-length
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| Line out | CN1 | Speaker out | CN3 |
|--------------------------+----------+---------------+------|
| Phone in | CN2 | Microphone in | CN4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT ADDRESS |
|------------------------------------------------------------|
| Setting | S1 | JP4 | JP5 | JP6 | JP8 |
|---------------+-----------+-------+-------+-------+--------|
| COM1 (3F8h) | 3 & 4, 7 | 1 & 2 | 1 & 2 | 1 & 2 | Open |
| | & 8 | | | | |
|---------------+-----------+-------+-------+-------+--------|
| COM2 (2F8h) | 3 & 4, 11 | 1 & 2 | 1 & 2 | 1 & 2 | Open |
| | & 12 | | | | |
|---------------+-----------+-------+-------+-------+--------|
| COM3 (3E8h) | 1 & 2, 7 | 1 & 2 | 1 & 2 | 1 & 2 | Open |
| | & 8 | | | | |
|---------------+-----------+-------+-------+-------+--------|
| COM4 (2E8h) | 1 & 2 11 | 1 & 2 | 1 & 2 | 1 & 2 | Open |
| | & 12 | | | | |
|---------------+-----------+-------+-------+-------+--------|
| Plug and play | N/A | 2 & 3 | 2 & 3 | 2 & 3 | Closed |
| enabled | | | | | |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IRQ INTERRUPT |
|------------------------------------------------------------|
| Setting | S1 |
|----------------------------+-------------------------------|
| IRQ3 | Pins 9 & 10 closed |
|----------------------------+-------------------------------|
| IRQ4 | Pins 5 & 6 closed |
|----------------------------+-------------------------------|
| IRQ5 | Pins 13 & 14 closed |
|----------------------------+-------------------------------|
| IRQ7 | Pins 15 & 16 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, ‘+++’, A/ |
|------------------------------------------------------------|
| A, B, C, E, H, M, O, P, Q, S, T, V, X, Y, Z |
|------------------------------------------------------------|
| &C &P, &R, &T, &V, &W, &Y, &V, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \A, \B, \G |
|------------------------------------------------------------|
| %C, %L, %Q |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S14, S16, S18, S21, S24, S25, S27 |
|------------------------------------------------------------|
| S29, S30, S31, S32, S33, S38, S40, S91, S92, S95 |
|------------------------------------------------------------|
| Special Commands |
|------------------------------------------------------------|
| +MS |
|------------------------------------------------------------|
| |
|------------------------------------------------------------|
| Note: See MHI Help File for full command documentation. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| 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 |
|--------------+---------------------------------------------|
| í DP | Pulse dialing enabled |
|--------------+---------------------------------------------|
| 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! | 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; | Modem returned to idle state after dialing. |
| | The semicolon can only be placed at the end |
| | of the dial command. |
|--------------+---------------------------------------------|
| D^ | Toggles calling tone enable/disable: |
| | Applicable to current dialing attempt only |
|--------------+---------------------------------------------|
| DJ | Perform MNP 10 link negotiation at 1200bps |
|--------------+---------------------------------------------|
| DK | Enable power level adjustment during MNP 10 |
| | link negotiation |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports four digit product code |
|--------------+---------------------------------------------|
| I1 | Reports ROM checksum |
|--------------+---------------------------------------------|
| I2 | Reports "ERROR" |
|--------------+---------------------------------------------|
| I3 | Reports firmware revision |
|--------------+---------------------------------------------|
| I4 | Reports OEM defined identifier string |
|--------------+---------------------------------------------|
| I5 | Reports country code parameter |
|--------------+---------------------------------------------|
| I6 | Reports modem data pump model and internal |
| | code revision |
|--------------+---------------------------------------------|
| I7 | Reports the DAA code |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPEAKER VOLUME |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| L0 | Low volume setting |
|--------------+---------------------------------------------|
| í L1 | Low volume setting |
|--------------+---------------------------------------------|
| L2 | Medium volume setting |
|--------------+---------------------------------------------|
| L3 | Highest volume setting |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-MODE DETECTION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects various options for the automatic |
| | detection and negotiation of protocols |
| | during the handshake process if the modem |
| | is communicating with a remote modem of |
| | dissimilar speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| N0 | Auto-mode detection disabled |
|--------------+---------------------------------------------|
| í N1 | Auto-mode detection enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NEGOTIATION PROGRESS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Wn [cmds] |
|--------------+---------------------------------------------|
| Description: | Reports error correction call progress |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| W0 | Error correction call progress reported. |
|--------------+---------------------------------------------|
| W1 | Error correction call progress not |
| | reported. |
|--------------+---------------------------------------------|
| W2 | Error correction call progress not |
| | reported. Enables CONNECT result codes to |
| | report DCE speed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA TERMINAL READY (DTR) |
|------------------------------------------------------------|
| Type: | Configuration |
|---------------+--------------------------------------------|
| Format: | AT [cmds] &Dn [cmds] |
|---------------+--------------------------------------------|
| Description: | Selects modem response to DTR |
|------------------------------------------------------------|
| Note: The action each variant of &D causes depends on |
| the setting of &Q |
|------------------------------------------------------------|
| &Q Setting | &D0 | &D1 | &D2 | &D3 |
|------------------+----------+----------+---------+---------|
| &Q0, &Q5, &Q6, | NONE | Command | Command | Command |
| | | 2 | 3 | 4 |
|------------------+----------+----------+---------+---------|
| &Q1, &Q4 | Command | Command | Command | Command |
| | 1 | 2 | 3 | 4 |
|------------------+----------+----------+---------+---------|
| &Q2, &Q3 | Command | Command | Command | Command |
| | 3 | 3 | 3 | 3 |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| Command 1 | Modem goes to command mode after DTR goes |
| | is off |
|---------------+--------------------------------------------|
| Command 2 | Modem goes to command mode and disconnects |
| | (hangs up) after DTR goes off; Auto-Answer |
| | is disabled. |
|---------------+--------------------------------------------|
| Command 3 | Modem is initialized after DTR goes off |
|---------------+--------------------------------------------|
| Command 4 | Modem performs a warm start. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|--------------+---------------------------------------------|
| í &F0 | Sets values to factory configuration 0 |
|--------------+---------------------------------------------|
| &F1 | Sets values to factory configuration 1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GUARD TONE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Gn [cmds] |
|--------------+---------------------------------------------|
| Description: | Commands the modem to transmit a guard tone |
| | in V.22/V.22bis |
|------------------------------------------------------------|
| Note: Used primarily for international data |
| transmission |
|------------------------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &G0, &G1 | Guard tone disabled |
|--------------+---------------------------------------------|
| &G2 | 1800Hz guard tone enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables flow control options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &K0 | Flow control disabled |
|--------------+---------------------------------------------|
| &K3 | RTS/CTS flow control enabled |
|--------------+---------------------------------------------|
| &K4 | XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| &K5 | Transparent XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| &K6 | Hardware and software flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATIONS MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects communications mode options |
|--------------+---------------------------------------------|
| Command | Mode |
|--------------+---------------------------------------------|
| &Q0 | Asynchronous mode, serial port speed |
| | follows connect speed. |
|--------------+---------------------------------------------|
| &Q1 | Asynchronous off-line command mode and |
| | synchronous connect mode. |
|--------------+---------------------------------------------|
| &Q2 | Asynchronous off-line command mode - modem |
| | autodials first number in directory, then |
| | synchronous connect mode. |
|--------------+---------------------------------------------|
| &Q3 | Asynchronous off-line command mode on low |
| | DTR, synchronous connect mode on high DTR. |
|--------------+---------------------------------------------|
| &Q5 | Error correction mode |
|--------------+---------------------------------------------|
| &Q6 | Buffered asynchronous mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SET READY (DSR) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Sn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects DSR options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &S0 | DSR forced high |
|--------------+---------------------------------------------|
| &S1 | DSR high only while modem is handshaking or |
| | connected |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|---------------------+--------------------------------------|
| Format: | AT [cmds] \Kn [cmds] |
|---------------------+--------------------------------------|
| Description: | Configures action of break signal |
|------------------------------------------------------------|
| Command | Break from | Break from DTE | Break received |
| | DTE during | during direct | from remote |
| | normal or | mode | modem |
| | MNP mode | | |
|-----------+--------------+----------------+----------------|
| \K0 | Online | Send break to | Buffers |
| | command mode | remote modem | cleared, break |
| | enabled, | | sent to DTE |
| | send no | | |
| | break to | | |
| | remote modem | | |
|-----------+--------------+----------------+----------------|
| \K1 | Break sent | Send break to | Buffers |
| | to remote | remote modem | cleared, break |
| | modem and | | sent to DTE |
| | buffered | | |
| | cleared | | |
|-----------+--------------+----------------+----------------|
| \K2 | Online | Send break to | Break sent |
| | command mode | remote modem | immediately to |
| | enabled, | | DTE |
| | send no | | |
| | break to | | |
| | remote modem | | |
|-----------+--------------+----------------+----------------|
| \K3 | Send break | Send break to | Break sent |
| | to remote | remote modem | immediately to |
| | modem | | DTE |
| | immediately | | |
|-----------+--------------+----------------+----------------|
| \K4 | Online | Send break to | Break sent |
| | command mode | remote modem | with received |
| | enabled, | | data to the |
| | send no | | DTE |
| | break to | | |
| | remote modem | | |
|-----------+--------------+----------------+----------------|
| \K5 | Send break | Send break to | Break sent |
| | with | remote modem | with received |
| | transmitted | | data to the |
| | data | | DTE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the type of connection the modem |
| | will operate in |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \N0 | Normal mode enabled |
|--------------+---------------------------------------------|
| \N1 | Direct mode enabled |
|--------------+---------------------------------------------|
| \N2 | Reliable mode enabled |
|--------------+---------------------------------------------|
| \N3 | Auto-reliable mode enabled |
|--------------+---------------------------------------------|
| \N4 | LAPM reliable mode enabled |
|--------------+---------------------------------------------|
| \N5 | MNP reliable mode enabled |
+------------------------------------------------------------+
EXTENDED AT COMMAND SET
+------------------------------------------------------------+
| AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %En [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls auto-retrain mode and |
| | fallback/fall-forward |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í %E0 | Auto-retrain disabled |
|--------------+---------------------------------------------|
| %E1 | Auto-retrain enabled |
|--------------+---------------------------------------------|
| %E2 | Auto-fallback/fall-forward enabled |
|--------------+---------------------------------------------|
| %E3 | Auto-fallback/fall-forward enabled. Fast |
| | hang-up. |
+------------------------------------------------------------+
S(STATUS) -REGISTERS
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S19 |
|------------------------------------------------------------|
| Format: | AT [cmds] S19=n [cmds] |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Defines the options for AutoSync |
| | operations. S19 must be set to desired |
| | value before &Q4 is issued |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 0 | Reserved |
|------+-------+---------------------------------------------|
| 1 | í 0 | Enable BCS |
| | | |
| | 1 | Enable HDLC |
|------+-------+---------------------------------------------|
| 2 | í 0 | Disable address detection |
| | | |
| | 1 | Enable address detection |
|------+-------+---------------------------------------------|
| 3 | í 0 | NRZI coding select |
| | | |
| | 1 | NZI coding select |
|------+-------+---------------------------------------------|
| 4 | í 0 | Mark idle |
| | | |
| | 1 | Flag or sync idle |
|------+-------+---------------------------------------------|
| 5-7 | 0 | Reserved |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HDLC ADDRESS/BSC SYNC CHARACTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S20=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Description: | Defines the HDLC address or BSC sync |
| | character for AutoSync operation. S20 must |
| | be set to desired value before &Q4 is |
| | issued. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S22 |
|------------------------------------------------------------|
| Format | AT [cmds] S22=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume and controls, |
| | limits results codes, and pulse dial |
| | make/break ratio. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 1, 0 | 00 | Low volume |
| | | |
| | í 01 | Low level volume |
| | | |
| | 10 | Medium level volume |
| | | |
| | 11 | High level volume |
|------+-------+---------------------------------------------|
| 3, 2 | 00 | Speaker off |
| | | |
| | í 01 | Speaker off on carrier |
| | | |
| | 10 | Speaker always on |
| | | |
| | 11 | Speaker on during handshake |
|------+-------+---------------------------------------------|
| 6 - | 000 | Basic result codes only enabled |
| 4 | | |
| | 100 | Basic and connection speed result codes |
| | | enabled |
| | 101 | |
| | | Basic and connection speed result codes and |
| | 110 | dialtone detection enabled |
| | | |
| | 111 | All result codes except dialtone detection |
| | | enabled |
| | | |
| | | All result codes enabled |
|------+-------+---------------------------------------------|
| 7 | 0 | Reserved |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S23 |
|------------------------------------------------------------|
| Format | AT [cmds] S23=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-189 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Grants/denies remote digital loopback, |
| | controls DTE rate and parity, and sets |
| | guard tone. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 0 | Remote digital loopback denied |
| | | |
| | í 1 | Remote digital loopback allowed |
|------+-------+---------------------------------------------|
| 3 - | 000 | Sets serial port speed to 0-300bps |
| 1 | | |
| | 001 | Sets serial port speed to 600bps |
| | | |
| | 010 | Sets serial port speed to 1200bps |
| | | |
| | í 011 | Sets serial port speed to 2400bps |
| | | |
| | 100 | Sets serial port speed to 4800bps |
| | | |
| | 101 | Sets serial port speed to 9600bps |
| | | |
| | 110 | Sets serial port speed to 19200bps |
| | | |
| | 111 | Sets serial port speed to 38400bps or |
| | | higher |
|------+-------+---------------------------------------------|
| 5, 4 | 00 | Parity even |
| | | |
| | 01 | Not used |
| | | |
| | 10 | Parity odd |
| | | |
| | í 11 | Mark or No Parity |
|------+-------+---------------------------------------------|
| 7, 6 | í 00 | Guard tone disabled |
| | | |
| | 01 | Guard tone disabled |
| | | |
| | 10 | Guard tone 1800Hz enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S28 |
|------------------------------------------------------------|
| Format | AT [cmds] S28=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-31 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls V.23 split speed, transmit/receive |
| | speed, half duplex; and pulse dialing. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0-2 | 0 | Reserved |
|------+-------+---------------------------------------------|
| 4, 3 | í 00 | 39ms make/61ms break at 10pps |
| | | |
| | 01 | 33ms make/67ms break at 10pps |
| | | |
| | 10 | 39ms make/61ms break at 20pps |
| | | |
| | 11 | 33ms make/67ms break at 20pps |
|------+-------+---------------------------------------------|
| 5 | 0 | Reserved |
|------+-------+---------------------------------------------|
| 6-7 | í 0 | Link will be negotiated at highest possible |
| | | speed |
| | 01 | |
| | | Link will be negotiated at 1200bps |
| | 10 | |
| | | Link will be negotiated at 4800bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S36 |
|------------------------------------------------------------|
| Format | AT [cmds] S36=n [cmds] |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | This register is read when S48 contains the |
| | value 128 or if an attempted link |
| | correction fails. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0-2 | 000 | Modem disconnect |
| | | |
| | 001 | Modem stays on-line and direct mode |
| | | connection is established |
| | 010 | |
| | | Not used |
| | 011 | |
| | | Modem stays online and a normal mode |
| | 100 | connection is established |
| | | |
| | 101 | An MNP connection is attempted. If it |
| | | fails, the modem disconnects |
| | 110 | |
| | | An MNP connection is attempted. If it |
| | í 111 | fails, a direct mode connection is |
| | | established |
| | | |
| | | Reserved |
| | | |
| | | An MNP connection is attempted. If it |
| | | fails, a normal mode connection is |
| | | established |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DCE LINE SPEED |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S37=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the maximum allowable data exchange |
| | rate attempted during handshake process. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| S37=0 | Speed of last connection |
|--------------+---------------------------------------------|
| S37=1 | 300bps |
|--------------+---------------------------------------------|
| S37=2 | 300bps |
|--------------+---------------------------------------------|
| S37=3 | 300bps |
|--------------+---------------------------------------------|
| S37=4 | Reserved |
|--------------+---------------------------------------------|
| S37=5 | V.22 at 1200bps |
|--------------+---------------------------------------------|
| S37=6 | V.22bis 2400bps |
|--------------+---------------------------------------------|
| S37=7 | V.23 |
|--------------+---------------------------------------------|
| S37=8 | V.32/V.32bis at 4800bps |
|--------------+---------------------------------------------|
| S37=9 | V.32/V.32bis at 9600bps |
|--------------+---------------------------------------------|
| S37=10 | V.32bis at 12.0Kbps |
|--------------+---------------------------------------------|
| S37=11 | V.32bis at 14.4Kbps |
|--------------+---------------------------------------------|
| S37=12 | V.32bis at 7200bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S39 |
|------------------------------------------------------------|
| Format | AT [cmds] S39=n [cmds] |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Displays the current flow control |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0-2 | 000 | Flow control disabled |
| | | |
| | í 011 | RTS to CTS flow control disabled |
| | | |
| | 100 | XON/XOFF flow control enabled |
| | | |
| | 101 | Transparent XON/XOFF flow control enabled |
| | | |
| | 110 | UnidirectionalXON/XOFF flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S40 |
|------------------------------------------------------------|
| Format | AT [cmds] S40=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls power level and break handling; |
| | selects MNP extended services, link |
| | negotiation, and block size. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0-1 | 000 | MNP Extended Services disabled |
| | | |
| | í 001 | MNP Extended Services enabled |
| | | |
| | 010 | MNP Extended Services enabled |
|------+-------+---------------------------------------------|
| 1 | í 0 | Auto adjustment enabled |
| | | |
| | 1 | Forced adjustment disabled |
|------+-------+---------------------------------------------|
| 5, | 000 | AT\K0 |
| 4, 3 | | |
| | 001 | AT\K1 |
| | | |
| | 010 | AT\K2 |
| | | |
| | 011 | AT\K3 |
| | | |
| | 100 | AT\K4 |
| | | |
| | í 101 | AT\K5 |
|------+-------+---------------------------------------------|
| 7, 6 | 00 | MNP block size is 64 characters |
| | | |
| | í 01 | MNP block size is 128 characters |
| | | |
| | 10 | MNP block size is 192 characters |
| | | |
| | 11 | MNP block size is 256 characters |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S41 |
|------------------------------------------------------------|
| Format | AT [cmds] S41=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-31 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects compression, auto-retrain, flow |
| | control, and MNP mode. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 1 - | 00 | Data compression disabled |
| 0 | | |
| | 01 | MNP5 enabled |
| | | |
| | 10 | V.42bis enabled |
| | | |
| | í 11 | MNP5 and V.42bis enabled |
|------+-------+---------------------------------------------|
| 6,2 | í 00 | Auto-retrain disabled |
| | | |
| | 01 | Auto-retrain enabled |
| | | |
| | 10 | Fallback/fall forward enabled |
|------+-------+---------------------------------------------|
| 3 | í 0 | Flow control disabled |
| | | |
| | 1 | Flow control enabled |
|------+-------+---------------------------------------------|
| 4 | í 0 | Stream mode for MNP |
| | | |
| | 1 | Block mode for MNP |
|------+-------+---------------------------------------------|
| 5 | 0 | Reserved |
|------+-------+---------------------------------------------|
| 7 | 0 | Fallback to V.22bis/V22 disabled |
| | | |
| | í 1 | Fallback to V.22bis/V22 enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ERROR CORRECTION/COMPRESSION |
|------------------------------------------------------------|
| Type: | Register |
|------------------------------------------------------------|
| Format: | AT [cmds] S46=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects active error correction and |
| | compression protocols |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| S46=136 | LAP-M only, no compression |
|---------------+--------------------------------------------|
| í S46=138 | LAP-M with V.42bis data compression |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FEATURE NEGOTIATION OPTIONS |
|------------------------------------------------------------|
| Type: | Register |
|------------------------------------------------------------|
| Format: | AT [cmds] S48=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects active error correction and |
| | compression protocols |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| S48=0 | Detection negotiation disabled, XID |
| | negotiation disabled |
|---------------+--------------------------------------------|
| S48=7 | Detection negotiation and XID negotiation |
| | enabled |
|---------------+--------------------------------------------|
| S48=128 | Fall-back to options set in S36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTION FAILURE CODES |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S86? [cmds] |
|--------------+---------------------------------------------|
| Description: | Reports codes which correspond to the |
| | possible causes of a connection failure |
|--------------+---------------------------------------------|
| Value | Meaning |
|--------------+---------------------------------------------|
| 0 | Normal hang up |
|--------------+---------------------------------------------|
| 4 | Carrier signal lost |
|--------------+---------------------------------------------|
| 5 | No error-control detected for remote modem |
| | during feature negotiation |
|--------------+---------------------------------------------|
| 9 | No common protocol found |
|--------------+---------------------------------------------|
| 12 | No failure - remote modem disconnected |
| | normally |
|--------------+---------------------------------------------|
| 13 | Remote modem failed to respond after 10 |
| | re-transmissions same message |
|--------------+---------------------------------------------|
| 14 | Violation of negotiated protocol caused |
| | failure |
+------------------------------------------------------------+