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# CREATIX POLYMEDIA
LC 144 VF
Card Type Modem
Chip Set Unidentified
I/O Options 25-pin serial port, power, microphone
in, speaker jack
Maximum Data Rate 56Kbps
Maximum Fax Rate 14.4Kbps
Fax Class Class I & II
Data Modulation Bell 103A/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis
Fax Modulation Protocol ITU-T V.17, V.21CH2, V.27ter, V.29
Error MNP5, V.42, V.42bis
Correction/Compression
Data Bus External
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| 25-pin serial port | CN1 | Speaker jack | CN3 |
|-------------------------+---------+-----------------+------|
| Power | CN2 | Microphone jack | CN4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+--------------+--------+-----------------------------|
| PWR | Unidentified | On | Power is on |
|------+--------------+--------+-----------------------------|
| PWR | Unidentified | Off | Power is off |
|------+--------------+--------+-----------------------------|
| ONLN | Unidentified | On | Modem is switched to the |
| | | | transmission line |
|------+--------------+--------+-----------------------------|
| ONLN | Unidentified | Off | Modem is not switched to |
| | | | the transmission line |
|------+--------------+--------+-----------------------------|
| DSR | Unidentified | On | Answer tone is detected |
|------+--------------+--------+-----------------------------|
| DSR | Unidentified | Off | Answer tone not detected |
|------+--------------+--------+-----------------------------|
| DCD | Unidentified | On | Carrier signal detected |
|------+--------------+--------+-----------------------------|
| DCD | Unidentified | Off | Carrier signal not detected |
|------+--------------+--------+-----------------------------|
| CTS | Unidentified | On | Modem is ready to transmit |
| | | | data |
|------+--------------+--------+-----------------------------|
| CTS | Unidentified | Off | Modem is not ready to |
| | | | transmit data |
|------+--------------+--------+-----------------------------|
| RTS | Unidentified | On | Transmission is being |
| | | | requested |
|------+--------------+--------+-----------------------------|
| RTS | Unidentified | Off | Transmission is not being |
| | | | requested |
|------+--------------+--------+-----------------------------|
| DTR | Unidentified | On | Computer is ready for |
| | | | operation |
|------+--------------+--------+-----------------------------|
| DTR | Unidentified | Off | Computer is not ready for |
| | | | operation |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, A/ |
|------------------------------------------------------------|
| A, B, E, M, P, Q, T, V, W, X, Y, Z |
|------------------------------------------------------------|
| &C, &F, &R, &T, &V, &W, &X, &Y, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \A, \G, \J, \K, \L, \N |
|------------------------------------------------------------|
| %C, %F |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S14, S16,S18, S24, S25, S26 |
|------------------------------------------------------------|
| S29, S30, S31, S32, S33, S38, S40, S95 |
|------------------------------------------------------------|
| V.25bis Commands |
|------------------------------------------------------------|
| CIC, CRI, CRN, CRS, DIC, PRI, PRN, RLN |
|------------------------------------------------------------|
| Note: See MHI Help File for full command documentation. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| 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. Handshake |
| | begins at line speed designated by the S37 |
| | register. If S37=0 handshake follows |
| | interface speed |
|--------------+---------------------------------------------|
| N1 | Auto-mode detection enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATIONS MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Mn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects communications mode |
|--------------+---------------------------------------------|
| Command | Mode |
|--------------+---------------------------------------------|
| &M0 | Asynchronous mode |
|--------------+---------------------------------------------|
| &M1 | Synchronous connect mode and asynchronous |
| | off-line command mode. |
|--------------+---------------------------------------------|
| &M2 | Synchronous connect mode and asynchronous |
| | off-line command mode and set DTR high. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATIONS MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects communications mode options |
|--------------+---------------------------------------------|
| Command | Mode |
|--------------+---------------------------------------------|
| &Q0 | Asynchronous mode |
|--------------+---------------------------------------------|
| &Q1 | Synchronous connect mode and asynchronous |
| | off-line command mode. |
|--------------+---------------------------------------------|
| &Q2 | Synchronous connect mode and asynchronous |
| | off-line command mode and set DTR high. |
|--------------+---------------------------------------------|
| &Q4 | Auto-synchronous mode |
|--------------+---------------------------------------------|
| &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 |
|--------------+---------------------------------------------|
| &S0 | DSR forced high |
|--------------+---------------------------------------------|
| &S1 | DSR high only while modem is handshaking or |
| | connected |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|--------------+---------------------------------------------|
| 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 1 second |
|--------------+---------------------------------------------|
| D! | Flash function initiated. Modem commanded |
| | to go off-hook for specified time before |
| | returning on-hook. |
|--------------+---------------------------------------------|
| D^ | Calling tone disabled |
|--------------+---------------------------------------------|
| D; | Modem returned to idle state after dialing. |
| | The semicolon can only be placed at the end |
| | of the dial command. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | RTS/CTS & XON/XOFF flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|--------------+---------------------------------------------|
| &G0 | Guard tone disabled |
|--------------+---------------------------------------------|
| &G1 | Guard tone disabled |
|--------------+---------------------------------------------|
| &G2 | 1800Hz guard tone enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HOOK CONTROL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Hn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem is on-hook or |
| | off-hook |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| H0 | Modem commanded to go on-hook (hang-up) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MODULATION & SPEED |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Fn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects interface speed and modulation |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| F0 | Automatic speed negotiation |
|--------------+---------------------------------------------|
| F1 | V.21 or Bell 103 (ATB) |
|--------------+---------------------------------------------|
| F3 | V.23 75/1200bps |
|--------------+---------------------------------------------|
| F4 | V.22 at 1200bps |
|--------------+---------------------------------------------|
| F5 | V.22 at 2400bps; fallback to 1200bps |
|--------------+---------------------------------------------|
| F6 | V.32bis or V.32 at 4800bps |
|--------------+---------------------------------------------|
| F7 | V.32bis at 7200bps |
|--------------+---------------------------------------------|
| F8 | V32bis or V.32 at 9600bps |
|--------------+---------------------------------------------|
| F9 | V.32bis at 12.0Kbps |
|--------------+---------------------------------------------|
| F10 | V.32bis at 14.4Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON-LINE |
|------------------------------------------------------------|
| Type: | Immediate |
|---------------+--------------------------------------------|
| Format: | AT [cmds] On [cmds] |
|---------------+--------------------------------------------|
| Description: | Controls on-line command (data |
| | transmission) state options. |
|------------------------------------------------------------|
| Note: The O command must be placed at the end of the |
| command string. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| O0 | On-line command mode with no retraining |
| | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports product code |
|--------------+---------------------------------------------|
| I1 | Reports ROM checksum |
|--------------+---------------------------------------------|
| I2 | Tests and reports ROM checksum |
|--------------+---------------------------------------------|
| I3 | Reports firmware version |
|--------------+---------------------------------------------|
| I4 | Reports device name |
|--------------+---------------------------------------------|
| I5 | Reports country code |
|--------------+---------------------------------------------|
| I6 | Reports data pump model |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPEAKER VOLUME |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume. Hardware currently |
| | limits speaker settings to on/off |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í L0, L1 | Low volume setting |
|--------------+---------------------------------------------|
| L2 | Medium volume setting |
|--------------+---------------------------------------------|
| L3 | High volume setting |
+------------------------------------------------------------+
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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK SEND |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sends break to modem. Break signal is fixed |
| | at 300ms |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY CONFIGURATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Sn [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays current modem configuration |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY STORED NUMBERS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Fn [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays numbers stored with &Z |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.23 - SPLIT-SPEED |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Wn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls V.23 split-speed mode |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \W1 | V.23 split-speed mode enabled |
+------------------------------------------------------------+
SPECIAL COMMANDS
+------------------------------------------------------------+
| DISPLAY PASSWORDS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *L [cmds] |
|--------------+---------------------------------------------|
| Description: | Lists security passwords inserted into |
| | callback numbers (*P) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EXIT FROM REMOTE CONFIGURATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *E [cmds] |
|--------------+---------------------------------------------|
| Description: | Exits modem from remote setting. Valid only |
| | when modem is in remote setting (*R) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP - EXTENDED SERVICES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects MNP extended services |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| -K1 | MNP extended services enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP10 - LINK NEGOTIATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Hn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the speed at which MNP10 link |
| | negotiation will occur |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| *H0 | Link will be negotiated at highest possible |
| | speed |
|--------------+---------------------------------------------|
| *H1 | Link will be negotiated at 1200bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PASSWORDS FOR AUTOMATIC CALLBACK |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Pn [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-19 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Stores passwords with their related |
| | telephone numbers. Password is a 6-12 digit |
| | string. Telephone number can be up to 40 |
| | characters. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REMOTE SECURITY CODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *C [cmds] |
|--------------+---------------------------------------------|
| Description: | Executes security code feature of remote |
| | setting. Password is a 6-12 digit string. |
| | Default password is QWERTY |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REMOTE SETTING |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *R [cmds] |
|--------------+---------------------------------------------|
| Description: | Remote setting is available if the function |
| | is enabled and MNP connection is enabled |
+------------------------------------------------------------+
S(status) REGISTERS
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S19 |
|------------------------------------------------------------|
| Format | AT [cmds] S19=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects synchronous/asynchronous mode, line |
| | type, clock source, and ITU-T/Bell modes. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 0 | Not used |
|------+-------+---------------------------------------------|
| 1 | 0 | BSC |
| | | |
| | 1 | HDLC |
|------+-------+---------------------------------------------|
| 2 | 0 | Address detector authorized |
| | | |
| | 1 | Address detector not authorized |
|------+-------+---------------------------------------------|
| 3 | 0 | NRZ1 |
| | | |
| | 1 | NRZ |
|------+-------+---------------------------------------------|
| 4 | 0 | Mark idle |
| | | |
| | 1 | Flag or sync idle |
|------+-------+---------------------------------------------|
| 5-7 | 0 | Not Used |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S21 |
|------------------------------------------------------------|
| Format | AT [cmds] S21=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-253 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects CTS/DCD/DSR signals, low DTR |
| | action, and the long space disconnect |
| | function. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0-1 | 0 | Not used |
|------+-------+---------------------------------------------|
| 2 | 0 | CTS forced high |
| | | |
| | 1 | CTS follows RTS |
|------+-------+---------------------------------------------|
| 4, 3 | 0 | Not used |
|------+-------+---------------------------------------------|
| 5 | 0 | DCD forced high |
| | | |
| | 1 | DCD normal |
|------+-------+---------------------------------------------|
| 6 | 0 | DSR forced high |
| | | |
| | 1 | DSR normal |
|------+-------+---------------------------------------------|
| 7 | 0 | Long space disconnect function disabled |
| | | |
| | 1 | Long space disconnect function enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 level volume |
| | | |
| | 01 | Low level volume |
| | | |
| | 10 | Medium level volume |
| | | |
| | 11 | High level volume |
|------+-------+---------------------------------------------|
| 3, 2 | 00 | Speaker off |
| | | |
| | 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 | Not used |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
| | | |
| | 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 |
| | | |
| | 111 | Sets serial port speed to >19200bps |
|------+-------+---------------------------------------------|
| 5, 4 | 00 | Parity even |
| | | |
| | 01 | Not used |
| | | |
| | 10 | Parity odd |
| | | |
| | 11 | Mark or No Parity |
|------+-------+---------------------------------------------|
| 7, 6 | 00 | Guard tone disabled |
| | | |
| | 01 | Guard tone disabled |
| | | |
| | 10 | Guard tone 1800Hz enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S27 |
|------------------------------------------------------------|
| Format | AT [cmds] S27=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-111 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects synchronous/asynchronous mode, line |
| | type, clock source, and ITU-T/Bell modes. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 1, | 00 | Asynchronous mode, serial port speed |
| 0, 3 | | follows connect speed |
| | 01 | |
| | | Asynchronous off-line command mode and |
| | 10 | synchronous connect mode |
| | | |
| | 11 | Asynchronous off-line command mode; modem |
| | | autodials first number in directory, then |
| | | synchronous connect mode |
| | | |
| | | Asynchronous off-line command mode on low |
| | | DTR, synchronous connect mode on high DTR |
|------+-------+---------------------------------------------|
| 2 | 0 | Not Used |
|------+-------+---------------------------------------------|
| 5, 4 | 00 | Local modem generates transmit clock source |
| | | |
| | 01 | Local DTE generates transmit clock source |
| | | |
| | 10 | Impulse loop |
|------+-------+---------------------------------------------|
| 6 | 0 | ITU/T mode |
| | | |
| | 1 | Bell mode |
|------+-------+---------------------------------------------|
| 7 | 0 | Not Used |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | 0 | V.23 split speed operation disabled |
| | | |
| | 1 | V.23 split speed operation enabled |
|------+-------+---------------------------------------------|
| 1 | 0 | 75bps transmit, 1200bps receive enabled |
| | | |
| | 1 | 1200bps transmit, 75bps receive enabled |
|------+-------+---------------------------------------------|
| 2 | 0 | V.23 half-duplex disabled |
| | | |
| | 1 | 1200bps transmit, 1200bps receive enabled |
|------+-------+---------------------------------------------|
| 3-7 | 0 | Not used |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
| | | |
| | 11 | MNP5 and V.42bis enabled |
|------+-------+---------------------------------------------|
| 2 | 0 | Automatic retrain enabled |
| | | |
| | 1 | Automatic retrain disabled |
|------+-------+---------------------------------------------|
| 3 | 0 | Flow control disabled |
| | | |
| | 1 | Flow control enabled |
|------+-------+---------------------------------------------|
| 4 | 0 | Stream mode for MNP |
| | | |
| | 1 | Block mode for MNP |
|------+-------+---------------------------------------------|
| 5-7 | 0 | Not Used |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S80 |
|------------------------------------------------------------|
| Format | AT [cmds] S80=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects password protect, command switch |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0-4 | 0 | Not used |
|------+-------+---------------------------------------------|
| 5 | 0 | AT command set |
| | | |
| | 1 | V.25bis command set |
|------+-------+---------------------------------------------|
| 6 | 0 | Remote configuration enabled |
| | | |
| | 1 | Remote configuration disabled |
|------+-------+---------------------------------------------|
| 7 | 0 | Automatic callback not protected by |
| | | password |
| | 1 | |
| | | Automatic callback protected by password |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK OPTIONS |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S82=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the method for break transmission |
| | during error-control and ASB connections. |
|------------------------------------------------------------|
| Command | Function |
|------------+-----------------------------------------------|
| S82=3 | Expedited signaling, immediately send timed |
| | break |
|------------+-----------------------------------------------|
| S82=7 | Destructive signaling, buffers cleared, |
| | immediately send timed break |
|------------+-----------------------------------------------|
| S82=128 | In-sequence signaling, timed break sent in |
| | sequence with transmitted data |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | Automatic speed recognition |
|--------------+---------------------------------------------|
| S37=1 | 300bps |
|--------------+---------------------------------------------|
| S37=2 | 300bps |
|--------------+---------------------------------------------|
| S37=3 | 300bps |
|--------------+---------------------------------------------|
| S37=5 | 1200bps |
|--------------+---------------------------------------------|
| S37=6 | 2400bps |
|--------------+---------------------------------------------|
| S37=7 | V.23 |
|--------------+---------------------------------------------|
| S37=8 | 4800bps |
|--------------+---------------------------------------------|
| S37=9 | 9600bps |
|--------------+---------------------------------------------|
| S37=10 | 12.0Kbps |
|--------------+---------------------------------------------|
| S37=11 | 14.4Kbps |
|--------------+---------------------------------------------|
| S37=12 | 7200bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ERROR CORRECTION NEGOTIATION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S36=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the action of the modem if it fails |
| | to connect with the error-correction |
| | protocol set in &Q. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| S36=0 | Hang up |
|--------------+---------------------------------------------|
| S36=1 | Attempt a direct connection |
|--------------+---------------------------------------------|
| S36=3 | Attempt a buffered connection |
|--------------+---------------------------------------------|
| S36=4 | Attempt a connection at MNP2-4; if that |
| | fails, hang up. |
|--------------+---------------------------------------------|
| S36=5 | Attempt a connection at MNP2-4; if that |
| | fails, attempt a direct connection. |
|--------------+---------------------------------------------|
| S36=7 | Attempt a connection at MNP2-4; if that |
| | fails, attempt a buffered connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|---------------+--------------------------------------------|
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S39? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the current flow control |
|--------------+---------------------------------------------|
| Value | Meaning |
|--------------+---------------------------------------------|
| 0 | Flow control disabled |
|--------------+---------------------------------------------|
| 3 | RTS/CTS flow control enabled |
|--------------+---------------------------------------------|
| 4 | XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| 5 | Transparent XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| 6 | RTS/CTS & XON/XOFF flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HDLC ADDRESS/BSC SYNCHRONOUS CHARACTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S20=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Sets the HDLC address/BSC sychronous |
| | character |
+------------------------------------------------------------+