(TXT) View Source
# IBM CORPORATION
Card Type Fax, Modem (asynchronous)
Chip Set Unidentified
Maximum Data Rate 14.4Kbps
Maximum Fax Rate 14.4Kbps
Data Bus 8-bit ISA
Fax Class Class I & II
Data Modulation Bell 103/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.32,
V.32bis
Fax Modulation ITU-T V.17, V.21, V.27ter, V.29
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| Line out | CN1 | Line in | CN2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT ADDRESS |
|------------------------------------------------------------|
| Setting | JP1/A | JP1/B | JP1/C | JP1/D |
|-------------+-----------+-----------+-----------+----------|
| COM1 (3F8h) | Closed | Open | Open | Open |
|-------------+-----------+-----------+-----------+----------|
| COM2 (2F8h) | Open | Closed | Open | Open |
|-------------+-----------+-----------+-----------+----------|
| COM3 (3E8h) | Open | Open | Closed | Open |
|-------------+-----------+-----------+-----------+----------|
| COM4 (2E8h) | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| Setting | JP1/E | JP1/F | JP1/G | JP1/H |
|------------+-----------+-----------+-----------+-----------|
| 3 | Closed | Open | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 4 | Open | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 5 | Open | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 7 | Open | Open | Open | Closed |
+------------------------------------------------------------+
Proprietary 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 |
|--------------+---------------------------------------------|
| %E0 | Auto-retrain disabled |
|--------------+---------------------------------------------|
| í %E1 | Auto-retrain enabled |
|--------------+---------------------------------------------|
| %E2 | Auto-fallback/fall-forward enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S14 |
|------------------------------------------------------------|
| Format: | AT [cmds] S14=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 138 |
|--------------+---------------------------------------------|
| Range: | 0-174 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls echo, result codes and display, |
| | dial mode, and answer/originate mode. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | í 0 | Not used |
|------+-------+---------------------------------------------|
| 1 | 0 | Command echo disabled |
| | | |
| | í 1 | Command echo enabled |
|------+-------+---------------------------------------------|
| 2 | í 0 | Result codes enabled |
| | | |
| | 1 | Result codes disabled |
|------+-------+---------------------------------------------|
| 3 | 0 | Display result codes in numeric format |
| | | |
| | í 1 | Display result codes in verbose format |
|------+-------+---------------------------------------------|
| 4 | í 0 | Not used |
|------+-------+---------------------------------------------|
| 5 | í 0 | Tone dial enabled |
| | | |
| | 1 | Pulse dial enabled |
|------+-------+---------------------------------------------|
| 6 | í 0 | Not used |
|------+-------+---------------------------------------------|
| 7 | 0 | Answer mode enabled |
| | | |
| | í 1 | Originate mode enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S21 |
|------------------------------------------------------------|
| Format | AT [cmds] S21=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 52 |
|--------------+---------------------------------------------|
| Range: | 0-253 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects jack type, CTS/DCD/DSR signals, low |
| | DTR action, and the long space disconnect |
| | function. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | í 0 | Selects RJ-11, RJ-41S, or RJ45S jack |
| | | |
| | 1 | Selects RJ-12 or RJ-13 jack |
|------+-------+---------------------------------------------|
| 1 | 0 | Not used |
|------+-------+---------------------------------------------|
| 2 | 0 | CTS follows RTS |
| | | |
| | í 1 | CTS forced high |
|------+-------+---------------------------------------------|
| 4, 3 | 00 | DTR signal ignored |
| | | |
| | 01 | Modem goes to command mode on low DTR |
| | | |
| | í 10 | Modem disconnects on low DTR; Auto-Answer |
| | | is disabled. |
| | 11 | |
| | | Modem is initialized on low DTR |
|------+-------+---------------------------------------------|
| 5 | 0 | DCD forced high |
| | | |
| | í 1 | DCD normal |
|------+-------+---------------------------------------------|
| 6 | í 0 | DSR forced high |
| | | |
| | 1 | DSR normal |
|------+-------+---------------------------------------------|
| 7 | í 0 | Long space disconnect function disabled |
| | | |
| | 1 | Long space disconnect function enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S22 |
|------------------------------------------------------------|
| Format | AT [cmds] S22=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 117 |
|--------------+---------------------------------------------|
| Range: | 0-127 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume and controls, and |
| | limits results codes. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 1, 0 | 00 | Off 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 |
| | | |
| | í 111 | All result codes except dialtone detection |
| | | enabled |
| | | |
| | | All result codes enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S23 |
|------------------------------------------------------------|
| Format | AT [cmds] S23=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| 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 |
| | | |
| | 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 |
|------+-------+---------------------------------------------|
| 5, 4 | 00 | Parity even |
| | | |
| | 01 | Not used |
| | | |
| | 10 | Parity odd |
| | | |
| | 11 | No Parity |
|------+-------+---------------------------------------------|
| 7, 6 | í 00 | Guard tone disabled |
| | | |
| | 01 | Guard tone disabled |
| | | |
| | 10 | Guard tone 1800Hz enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S27 |
|------------------------------------------------------------|
| Format | AT [cmds] S27=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 64 |
|--------------+---------------------------------------------|
| Range: | 0-116 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects line type, clock source, and |
| | ITU-T/Bell modes. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 3, | 000 | Not used |
| 1, 0 | | |
|------+-------+---------------------------------------------|
| 2 | í 0 | Switched line |
| | | |
| | 1 | Leased line |
|------+-------+---------------------------------------------|
| 5, 4 | í 00 | Local modem generates transmit clock source |
| | | |
| | 01 | Local DTE generates transmit clock source |
| | | |
| | 10 | Remote DCE/DTE generates transmit clock |
| | | source |
|------+-------+---------------------------------------------|
| 6 | 0 | ITU/T mode |
| | | |
| | í 1 | Bell mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S28 |
|------------------------------------------------------------|
| Format | AT [cmds] S28=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-31 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls V.23 split speed, transmit/receive |
| | speed, half duplex, and pulse dialing. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | í 0 | V.23 split speed operation disabled |
| | | |
| | 1 | V.23 split speed operation enabled |
|------+-------+---------------------------------------------|
| 1 | í 0 | 75bps transmit, 1200bps receive enabled |
| | | |
| | 1 | 1200bps transmit, 75bps receive enabled |
|------+-------+---------------------------------------------|
| 2 | í 0 | V.23 half-duplex disabled |
| | | |
| | 1 | V.23 half-duplex enabled |
|------+-------+---------------------------------------------|
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S31 |
|------------------------------------------------------------|
| Format: | AT [cmds] S31=n [cmds] |
|----------------+-------------------------------------------|
| Default: | 2 |
|----------------+-------------------------------------------|
| Range: | 0-10 |
|----------------+-------------------------------------------|
| Description: | Select automode and extended result code |
| | format. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 0 | í 0 | Not used |
|----------+-------+-----------------------------------------|
| 1 | 0 | Auto-mode detection disabled |
| | | |
| | í 1 | In originate mode, handshake begins at |
| | | line speed designated by the S37 |
| | | register. Modem can shift to a slower |
| | | speed if necessary. |
| | | |
| | | In answer mode, handshake attempted |
| | | with the following protocols in order - |
| | | V.32bis, V.32, V.22bis, V.22 or Bell |
| | | 212, V.21, and Bell 103 |
|----------+-------+-----------------------------------------|
| 3, 2 | í 00 | Enables CONNECT result codes to report |
| | | DTE speed |
| | 01 | |
| | | Full reporting of CONNECT result codes |
| | 10 | |
| | | Enables CONNECT result codes to report |
| | | DCE speed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S40 |
|------------------------------------------------------------|
| Format | AT [cmds] S40=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 105 |
|--------------+---------------------------------------------|
| Range: | 0-239 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls power level and break handling, |
| | selects MNP extended services, link |
| | negotiation, and block size. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 0 | MNP disabled |
| | | |
| | í 1 | MNP enabled |
|------+-------+---------------------------------------------|
| 1 | í 0 | Power level adjustment enabled |
| | | |
| | 1 | Power level adjustment disabled |
|------+-------+---------------------------------------------|
| 2 | í 0 | Link will be negotiated at highest possible |
| | | speed |
| | 1 | |
| | | Link will be negotiated at 1200bps |
|------+-------+---------------------------------------------|
| 5, | 000 | \K0 |
| 4, 3 | | |
| | 001 | \K1 |
| | | |
| | 010 | \K2 |
| | | |
| | 011 | \K3 |
| | | |
| | 100 | \K4 |
| | | |
| | í 101 | \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] |
|--------------+---------------------------------------------|
| Default: | 7 |
|--------------+---------------------------------------------|
| 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 |
|------+-------+---------------------------------------------|
| 2 | 0 | Auto-retrain disabled |
| | | |
| | í 1 | Auto-retrain enabled |
|------+-------+---------------------------------------------|
| 3 | í 0 | Flow control disabled |
| | | |
| | 1 | Flow control enabled |
|------+-------+---------------------------------------------|
| 4 | í 0 | Stream mode for MNP |
| | | |
| | 1 | Block mode for MNP |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK SEND |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Bn [cmds] |
|--------------+---------------------------------------------|
| Default: | 3 |
|--------------+---------------------------------------------|
| Range: | 1-9 |
|--------------+---------------------------------------------|
| Unit: | .1 second |
|--------------+---------------------------------------------|
| Description: | Sends break to modem |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|---------------------+--------------------------------------|
| Format: | AT [cmds] \Kn [cmds] |
|---------------------+--------------------------------------|
| Description: | Configures action of break signal |
|------------------------------------------------------------|
| Command | Break from | Break from DTE | Break received |
| | DTE while in | while in | from remote |
| | Normal or | Direct mode | modem |
| | MNP mode | | |
|-----------+--------------+----------------+----------------|
| \K0 | On-line | On-line | Buffers |
| | command mode | command mode | cleared, break |
| | enabled, | enabled, send | sent to DTE |
| | send no | no break to | |
| | break to | remote modem | |
| | remote modem | | |
|-----------+--------------+----------------+----------------|
| \K1 | Break sent | On-line | Buffers |
| | to remote | command mode | cleared, break |
| | modem and | enabled, send | sent to DTE |
| | buffers | no break to | |
| | cleared | remote modem | |
|-----------+--------------+----------------+----------------|
| \K2 | On-line | Send break to | Break sent |
| | command mode | remote modem | immediately to |
| | enabled, | immediately | DTE |
| | send no | | |
| | break to | | |
| | remote modem | | |
|-----------+--------------+----------------+----------------|
| \K3 | Send break | On-line | Break sent |
| | to remote | command mode | immediately to |
| | modem | enabled, send | DTE |
| | immediately | no break to | |
| | | remote modem | |
|-----------+--------------+----------------+----------------|
| \K4 | On-line | Send break to | Break sent |
| | command mode | remote modem | with received |
| | enabled, | immediately | data to the |
| | send no | | DTE |
| | break to | | |
| | remote modem | | |
|-----------+--------------+----------------+----------------|
| î \K5 | Send break | Send break to | Break sent |
| | with | remote modem | with received |
| | transmitted | immediately | data to the |
| | data | | DTE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects data compression |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %C0 | Data compression disabled |
|--------------+---------------------------------------------|
| %C1 | Not used |
|--------------+---------------------------------------------|
| %C2 | V.42bis enabled |
|--------------+---------------------------------------------|
| í %C3 | MNP5 and V.42bis enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|--------------+---------------------------------------------|
| í \N1 | Direct mode enabled |
|--------------+---------------------------------------------|
| \N2 | Reliable mode enabled |
|--------------+---------------------------------------------|
| \N3 | Auto-reliable mode enabled |
|--------------+---------------------------------------------|
| \N4 | V.42 reliable mode enabled |
|--------------+---------------------------------------------|
| \N5 | MNP reliable mode enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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. |
|--------------+---------------------------------------------|
| Modifier | Function |
|--------------+---------------------------------------------|
| L | Re-dial last number |
|--------------+---------------------------------------------|
| í P | Pulse dialing enabled |
|--------------+---------------------------------------------|
| S=n | Dial stored telephone number n |
|--------------+---------------------------------------------|
| T | Tone dialing enabled |
|--------------+---------------------------------------------|
| W | Dialing resumed following dial tone |
| | detection |
|--------------+---------------------------------------------|
| , | Dialing paused for amount of time specified |
| | in S8 register |
|--------------+---------------------------------------------|
| ! | Flash function initiated |
|--------------+---------------------------------------------|
| @ | Wait for quiet answer enabled |
|--------------+---------------------------------------------|
| ; | Modem returned to command state after |
| | dialing |
|--------------+---------------------------------------------|
| ^ | Calling tone disabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Gn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects modem port flow control |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í \G0 | Flow control disabled |
|--------------+---------------------------------------------|
| \G1 | Flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S39? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the current flow control |
|--------------+---------------------------------------------|
| Value | Meaning |
|--------------+---------------------------------------------|
| 0 | Flow control disabled |
|--------------+---------------------------------------------|
| í 3 | RTS/CTS flow control enabled |
|--------------+---------------------------------------------|
| 4 | XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| 5 | Transparent XON/XOFF flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL CHARACTER - XOFF |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S33=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 19 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used to represent XOFF |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL CHARACTER - XON |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S32=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 17 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used to represent XON |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INACTIVITY TIMER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Tn [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-42 |
|--------------+---------------------------------------------|
| Unit: | 1 minute |
|--------------+---------------------------------------------|
| Description: | Sets the length of time that the modem does |
| | not receive information before it |
| | disconnects. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE SIGNAL LEVEL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %L [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 9-43 |
|--------------+---------------------------------------------|
| Unit: | -dBm |
|--------------+---------------------------------------------|
| Description: | Returns a value which indicates the |
| | received line signal level |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE SIGNAL QUALITY |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Q [cmds] |
|--------------+---------------------------------------------|
| Description: | Returns a value which indicates line signal |
| | quality |
|------------------------------------------------------------|
| Value | Meaning |
|-------------------------+----------------------------------|
| 0 - 7 | Auto-retrain disabled |
|-------------------------+----------------------------------|
| 8 - 255 | Auto-retrain enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAXIMUM BLOCK SIZE FOR TRANSMISSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \An [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the maximum transmittable block size |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \A0 | MNP block size is 64 characters |
|--------------+---------------------------------------------|
| í \A1 | MNP block size is 128 characters |
|--------------+---------------------------------------------|
| \A2 | MNP block size is 192 characters |
|--------------+---------------------------------------------|
| \A3 | MNP block size is 256 characters |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP - STREAM/BLOCK MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the transfer mode for MNP link |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í \L0 | Stream mode for MNP enabled |
|--------------+---------------------------------------------|
| \L1 | Block mode for MNP enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP - LINK NEGOTIATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Hn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the speed at which an MNP link |
| | negotiation will occur |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í *H0 | Link will be negotiated at highest possible |
| | speed |
|--------------+---------------------------------------------|
| *H1 | Link will be negotiated at 1200bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports product identification code |
|--------------+---------------------------------------------|
| I1 | Reports ROM checksum as OK or ERROR |
|--------------+---------------------------------------------|
| I2 | Tests and reports ROM checksum |
|--------------+---------------------------------------------|
| I3 | Reports firmware revision level |
|--------------+---------------------------------------------|
| I4 | Reports OEM-defined identifier string |
|--------------+---------------------------------------------|
| I5 | Reports country code |
|--------------+---------------------------------------------|
| I6 | Reports Modem data pump model |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SLEEP TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S24=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | 1 second |
|--------------+---------------------------------------------|
| Description: | Maximum duration of DTE and DCE inactivity |
| | allowed prior to initiating low-power sleep |
| | mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPLIT-SPEED CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Wn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls split-speed mode |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í \W0 | V.23 split-speed mode disabled |
|--------------+---------------------------------------------|
| \W1 | V.23 split-speed mode enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPLIT-SPEED MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Fn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls split-speed direction |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| %F0 | Not used |
|---------------+--------------------------------------------|
| %F1 | 75bps transmit, 1200bps receive |
|---------------+--------------------------------------------|
| í %F2 | 1200bps transmit, 75bps receive; when |
| | AT\W1 is set. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SWITCH TO NORMAL MODE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Z [cmds] |
|--------------+---------------------------------------------|
| Description: | Switches to normal mode from MNP mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S16=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-125 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls loopback tests: analog, digital, |
| | remote digital, and self tests. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | í 0 | Local analog loopback not in progress |
| | | |
| | 1 | Local analog loopback in progress |
|------+-------+---------------------------------------------|
| 1 | í 0 | Not used |
|------+-------+---------------------------------------------|
| 2 | í 0 | Local digital loopback not in progress |
| | | |
| | 1 | Local digital loopback in progress |
|------+-------+---------------------------------------------|
| 3 | í 0 | Modem not in remote digital loopback |
| | | |
| | 1 | Remote digital loopback in progress |
|------+-------+---------------------------------------------|
| 4 | í 0 | Remote digital loopback not requested |
| | | |
| | 1 | Remote digital loopback requested |
|------+-------+---------------------------------------------|
| 5 | í 0 | Remote digital loopback w/ error count not |
| | | in progress |
| | 1 | |
| | | Remote digital loopback w/ error count in |
| | | progress |
|------+-------+---------------------------------------------|
| 6 | í 0 | Local analog loopback w/ self-test not in |
| | | progress |
| | 1 | |
| | | Local analog loopback w/ self-test in |
| | | progress |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMISSION LEVEL - PSTN |
|------------------------------------------------------------|
| Type | Register |
|-------------+----------------------------------------------|
| Format | AT [cmds] S91=n [cmds] |
|-------------+----------------------------------------------|
| Default | 10 |
|-------------+----------------------------------------------|
| Range | 0-15 |
|-------------+----------------------------------------------|
| Unit | -1 dBm |
|-------------+----------------------------------------------|
| Description | Sets the signal level for transmission over |
| | switched phone lines |
+------------------------------------------------------------+