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# PENRIL DATABILITY NETWORKS
DX144M
Modem Type Data (synchronous/asynchronous)/Fax
Maximum Data Rate 14.4Kbps
Maximum Fax Rate 14.4Kbps
Data Bus External
Fax Class Class I & II
Data Modulation Bell 103A/212A, 208A/B
Protocol
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis
Fax Modulation ITU-T V.17, V.27ter, V.29
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| Lease line out | CN1 | Diagnostic | CN4 |
| | | connector | |
|----------------+----------+---------------------+----------|
| Line in | CN2 | AC power | CN5 |
|----------------+----------+---------------------+----------|
| RS-232/422 | CN3 | Data/Voice | BT1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| A/A1 - MI/MIC CONTROL |
|------------------------------------------------------------|
| Control Type | JP3 | JP4 |
|------------------+--------------------+--------------------|
| » A/A1 control. | Pin 1 & 2 closed. | Pin 1 & 2 closed. |
|------------------+--------------------+--------------------|
| MI/MIC control. | Pin 2 & 3 closed. | Pin 2 & 3 closed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL/LEASE LINE |
|------------------------------------------------------------|
| Line Type | JP1 | JP2 |
|--------------------+-------------------+-------------------|
| » Dial line | Pin 1 & 2 closed. | Pin 1 & 2 closed. |
| connected. | | |
|--------------------+-------------------+-------------------|
| Lease line | Pin 2 & 3 closed. | Pin 2 & 3 closed. |
| connected. | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DTE CONNECTION - PIN 25 |
|------------------------------------------------------------|
| Function | JP6 |
|---------------------------------+--------------------------|
| Analog loopback (input). | Pin 1 & 2 closed. |
|---------------------------------+--------------------------|
| » Test mode indicator (output). | Pin 2 & 3 closed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED SETTINGS - DO NOT ALTER |
|------------------------------------------------------------|
| Jumper | Setting |
|----------------------------+-------------------------------|
| JP5 | Pin 2 & 3 closed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FRAME/SIGNAL GROUND |
|------------------------------------------------------------|
| Ground Type | JP7 |
|----------------------------------------+-------------------|
| Frame and signal ground connected. | Pin 1 & 2 closed. |
|----------------------------------------+-------------------|
| » Frame and signal ground not | Pin 2 & 3 closed. |
| connected. | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-----+-------+----------+-----------------------------------|
| HS | Red | On | Modem is operating at 7200bps or |
| | | | faster |
|-----+-------+----------+-----------------------------------|
| HS | Red | Off | Modem is operating at slower than |
| | | | 7200bps |
|-----+-------+----------+-----------------------------------|
| AA | Red | On | Auto-answer enabled |
|-----+-------+----------+-----------------------------------|
| AA | Red | Off | Auto-answer disabled |
|-----+-------+----------+-----------------------------------|
| AA | Red | Blinking | Phone is ringing |
|-----+-------+----------+-----------------------------------|
| CD | Red | On | Carrier signal detected |
|-----+-------+----------+-----------------------------------|
| CD | Red | Off | Carrier signal not detected |
|-----+-------+----------+-----------------------------------|
| OH | Red | On | Modem is off-hook |
|-----+-------+----------+-----------------------------------|
| OH | Red | Off | Modem is on-hook |
|-----+-------+----------+-----------------------------------|
| RD | Red | On | Modem is receiving data |
|-----+-------+----------+-----------------------------------|
| RD | Red | Off | Modem is not receiving data |
|-----+-------+----------+-----------------------------------|
| SD | Red | On | Modem is transmitting data |
|-----+-------+----------+-----------------------------------|
| SD | Red | Off | Modem is not transmitting data |
|-----+-------+----------+-----------------------------------|
| TR | Red | On | DTR signal is high |
|-----+-------+----------+-----------------------------------|
| TR | Red | Flashing | Voice mode |
|-----+-------+----------+-----------------------------------|
| MR | Red | On | Modem ready |
|-----+-------+----------+-----------------------------------|
| MR | Red | Off | Test mode enabled |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| ADMINISTRATIVE PASSWORD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] /A |
|--------------+---------------------------------------------|
| Example: | AT &Z=/ASECURITY<CR> |
|--------------+---------------------------------------------|
| Description: | Set administrative password; |
| | password-protects use of certain Hayes |
| | commands. |
|--------------+---------------------------------------------|
| Note | SECURITY is the modem’s default password. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-RETRAIN |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %En [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %E1 <CR> |
|--------------+---------------------------------------------|
| Description: | Selects auto-retrain mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %E0 | Auto-retrain disabled. |
|--------------+---------------------------------------------|
| » %E1 | Auto-retrain enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUFFER MODE/SPEED CONVERSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Bn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \B1 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Controls buffer mode/speed conversion |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \B0 | Speed conversion disabled. |
|--------------+---------------------------------------------|
| » \B1 | Speed conversion enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTION SPEED LOWER LIMIT |
|------------------------------------------------------------|
| Format | AT [cmds] S44=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT S44=14 <CR> |
|--------------+---------------------------------------------|
| Default: | 14 |
|--------------+---------------------------------------------|
| Range: | 4 - 14 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects minimum data rate. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| 4 | Select 19.2Kbps speed. |
|--------------+---------------------------------------------|
| 5 | Not used. |
|--------------+---------------------------------------------|
| 6 | Select 14.4Kbps speed. |
|--------------+---------------------------------------------|
| 7 | Select 12Kbps speed. |
|--------------+---------------------------------------------|
| 8 | Select 9600bps speed. |
|--------------+---------------------------------------------|
| 9 | Select 7200bps speed. |
|--------------+---------------------------------------------|
| 10 | Select 4800bps speed. |
|--------------+---------------------------------------------|
| 11 | Select 2400bps speed. |
|--------------+---------------------------------------------|
| 12 | Select 1200bps speed. |
|--------------+---------------------------------------------|
| » 14 | Select 0 - 300bps speed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTION SPEED UPPER LIMIT |
|------------------------------------------------------------|
| Format | AT [cmds] S43=n [cmds] |
|---------------------+--------------------------------------|
| Example: | AT S43=8 <CR> |
|---------------------+--------------------------------------|
| Default: | 6 |
|---------------------+--------------------------------------|
| Range: | 4 - 16 |
|---------------------+--------------------------------------|
| Unit: | Bit-mapped |
|---------------------+--------------------------------------|
| Description: | Selects maximum data rate. |
|------------------------------------------------------------|
| Note: DX V.32terbo M default setting is 4 for this |
| S-register. |
|------------------------------------------------------------|
| Command | Function |
|---------------------+--------------------------------------|
| 4 | Select 19.2Kbps speed. |
|---------------------+--------------------------------------|
| 5 | Select 16.8Kbps speed. |
|---------------------+--------------------------------------|
| 6 | Select 14.4Kbps speed. |
|---------------------+--------------------------------------|
| 7 | Select 12Kbps speed. |
|---------------------+--------------------------------------|
| » 8 | Select 9600bps speed. |
|---------------------+--------------------------------------|
| 9 | Select 7200bps speed. |
|---------------------+--------------------------------------|
| 10 | Select 4800bps speed. |
|---------------------+--------------------------------------|
| 11 | Select 2400bps speed. |
|---------------------+--------------------------------------|
| 12 | Select 1200bps speed. |
|---------------------+--------------------------------------|
| 14 | Select 0 - 300bps speed. |
|---------------------+--------------------------------------|
| 15 | Select 1200/75bps speed. |
|---------------------+--------------------------------------|
| 16 | Select EIA control. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] D<#> [; cmds] |
|--------------+---------------------------------------------|
| Example: | AT H1 DT 9W *70, 1(303) 555-1212<CR> |
|--------------+---------------------------------------------|
| Description: | Dials telephone number according to any |
| | modifiers included in the string. |
|--------------+---------------------------------------------|
| Modifier | Function |
|--------------+---------------------------------------------|
| DL | Links a stored phone number to another |
| | number as an alternate. |
|--------------+---------------------------------------------|
| DP | Pulse dialing enabled. |
|--------------+---------------------------------------------|
| DS=c | Number in memory location c dialed. |
|--------------+---------------------------------------------|
| DT | Tone dialing enabled. |
|--------------+---------------------------------------------|
| DW | Dialing resumed following dial tone |
| | detection. |
|--------------+---------------------------------------------|
| D: | Dialing resumed following dial tone |
| | detection. |
|--------------+---------------------------------------------|
| D/R | Modem is configured for Dial Line |
| | Auto-Recovery. |
|--------------+---------------------------------------------|
| D, | Dialing paused for amount of time specified |
| | in S8 register. |
|--------------+---------------------------------------------|
| D< | Dialing paused for amount of time specified |
| | in S8 register. |
|--------------+---------------------------------------------|
| D; | Modem returned to command mode after |
| | dialing. |
|--------------+---------------------------------------------|
| D& | Flash function initiated. Modem commanded |
| | to go on-hook for specified time. |
|--------------+---------------------------------------------|
| D! | Flash function initiated. Modem commanded |
| | to go on-hook for specified time. |
|--------------+---------------------------------------------|
| D@ | Modem waits for a ring-back signal followed |
| | by silence up to the time specified in S7 |
| | prior to executing the rest of the dial |
| | string. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIALING MESSAGE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Dn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \D0 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Controls dialing message. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \D0 | "Dialing" message disabled. |
|--------------+---------------------------------------------|
| \D1 | "Dialing" message enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DTE SPEED |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S61n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT S61=2 <CR> |
|--------------+---------------------------------------------|
| Description: | Selects the current DTE speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| 0 | Select 115.2Kbps speed. |
|--------------+---------------------------------------------|
| 1 | Select 57.6Kbps speed. |
|--------------+---------------------------------------------|
| » 2 | Select 38.4Kbps speed. |
|--------------+---------------------------------------------|
| 3 | Select 19.2Kbps speed. |
|--------------+---------------------------------------------|
| 4 | Select 9600bps speed. |
|--------------+---------------------------------------------|
| 5 | Select 7200bps speed. |
|--------------+---------------------------------------------|
| 6 | Select 4800bps speed. |
|--------------+---------------------------------------------|
| 7 | Select 2400bps speed. |
|--------------+---------------------------------------------|
| 8 | Select 1800bps speed. |
|--------------+---------------------------------------------|
| 9 | Select 1200bps speed. |
|--------------+---------------------------------------------|
| 10 | Select 600bps speed. |
|--------------+---------------------------------------------|
| 11 | Select 300bps speed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INACTIVITY TIMER |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \T=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \T=0 <CR> |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0 - 90 |
|--------------+---------------------------------------------|
| Unit: | 1 minutes |
|--------------+---------------------------------------------|
| Description: | Sets the length of time that the modem does |
| | not receive information before it |
| | disconnects. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MANUAL RESPONSE PASSWORD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] /P |
|--------------+---------------------------------------------|
| Example: | AT &Z22=/PBLUE<CR> or AT |
| | &Z42=5551212/PGREEN<CR> |
|--------------+---------------------------------------------|
| Description: | Sets password for Manual response password; |
| | with or without callback. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAXIMUM BLOCK SIZE FOR TRANSMISSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \An [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \A3 \B0 <CR> |
|--------------+---------------------------------------------|
| Description: | Sets the maximum transmittable block size. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \A0 | Maximum MNP block size is 64 characters. |
|--------------+---------------------------------------------|
| \A1 | Maximum MNP block size is 128 characters. |
|--------------+---------------------------------------------|
| \A2 | Maximum MNP block size is 192 characters. |
|--------------+---------------------------------------------|
| » \A3 | Maximum MNP block size is 256 characters. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP CLASS - LIMIT |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Cn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \C5 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Selects MNP class. |
|--------------+---------------------------------------------|
| Note: | This option is not in effect until modem |
| | goes off-line. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \C1 | MNP class 1. |
|--------------+---------------------------------------------|
| \C2 | MNP class 1 & 2. |
|--------------+---------------------------------------------|
| \C3 | MNP class 1 - 3. |
|--------------+---------------------------------------------|
| \C4 | MNP class 1 - 4. |
|--------------+---------------------------------------------|
| » \C5 | MNP class 1- 5. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PRODUCT CODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Example: | AT I0 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Selects product code or checksum. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Request product code. |
|--------------+---------------------------------------------|
| I1 | Request checksum for the ALX modem’s |
| | software. |
|--------------+---------------------------------------------|
| I2 | Request verification of software checksum. |
|--------------+---------------------------------------------|
| I3 | Request the following for each EPROM chip, |
| | part and revision number |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RECEIVE/TRANSMIT SPACE DISCONNECT |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Yn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT Y1 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Controls receive/transmit space disconnect. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| Y0 | Receive space connect and transmit space |
| | disconnect disabled. |
|--------------+---------------------------------------------|
| » Y1 | Receive space connect and transmit space |
| | disconnect enabled. |
|--------------+---------------------------------------------|
| Y2 | Transmit space disconnect enabled; receive |
| | space disconnect disabled. |
|--------------+---------------------------------------------|
| Y3 | Receive space disconnect enabled; transmit |
| | space disconnect disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMIT LEVEL - DIAL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -Ln [cmds] |
|--------------+---------------------------------------------|
| Example: | AT -L1 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Controls transmit level. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| -L0 | Permissive transmit level enabled. |
|--------------+---------------------------------------------|
| » -L1 | Programmable transmit level enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER-DEFINED TEXT STRING |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] /U |
|--------------+---------------------------------------------|
| Example: | AT &Z0=/UGORDO<CR> |
|--------------+---------------------------------------------|
| Description: | Sends a response to remote terminal user |
| | after valid password is received. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.25bis MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Vn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %V2 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Selects V.25bis mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %V0 | Hayes mode disabled, V.25bis mode |
| | asynchronous enabled. |
|--------------+---------------------------------------------|
| %V1 | V.25bis mode, sync bit oriented (HDLC) |
| | enabled. |
|--------------+---------------------------------------------|
| %V2 | V.25bis mode, synchronous character |
| | oriented enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.32 MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -Cn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT -C1 &W<CR> |
|--------------+---------------------------------------------|
| Description: | Selects either V.32 extended or V.32bis |
| | mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| -C0 | V.32 extended mode enabled. |
|--------------+---------------------------------------------|
| » -C1 | V.32bis mode enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42 BREAK HANDLING |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Kn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \K3 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Selects the type of break in V.42. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \K0 | Normal break handling enabled. |
|--------------+---------------------------------------------|
| \K1 | Destructive/expedited break handling |
| | enabled. |
|--------------+---------------------------------------------|
| \K2 | Non-destructive/expedited break handling |
| | enabled. |
|--------------+---------------------------------------------|
| » \K3 | Non-Destructive/non-expedited break |
| | handling enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42 DETECTION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \En [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \E1 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Controls V.42 detection. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \E0 | V.42 detection disabled. |
|--------------+---------------------------------------------|
| » \E1 | V.42 detection enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42 FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Qn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \Q3 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Sets V.42 flow control. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \Q0 | Flow control disabled. |
|--------------+---------------------------------------------|
| \Q1 | RTS/CTS flow control enabled. |
|--------------+---------------------------------------------|
| \Q2 | DC1/DC2 flow control enabled. |
|--------------+---------------------------------------------|
| » \Q3 | DC1/DC3 flow control enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42 MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Nn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \N3 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Controls V.42 mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \N0 | Error correction disabled. |
|--------------+---------------------------------------------|
| \N1 | Mandatory mode for error correction |
| | enabled. |
|--------------+---------------------------------------------|
| \N2 | V.42 error correction enabled. |
|--------------+---------------------------------------------|
| » \N3 | Automatic mode for error correction |
| | enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42 PASS-THROUGH FLOW CONRTOL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Xn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \X7 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Controls both DTE and DCE pass-through flow |
| | control. |
|------------------------------------------------------------|
| Command | DTE pass-through | DCE pass-through |
|----------------+----------------------+--------------------|
| » \X0 | DTE and DCE | DTE and DCE |
| | pass-through flow | pass-through flow |
| | disabled. | disabled. |
|----------------+----------------------+--------------------|
| \X1 | DTE and DCE | DTE and DCE |
| | pass-through flow | pass-through flow |
| | enabled. | Enabled. |
|----------------+----------------------+--------------------|
| \X1, 0 | DTE pass-through | DCE pass-through |
| | flow enabled. | flow disabled. |
|----------------+----------------------+--------------------|
| \X0, 1 | DTE pass-through | DCE pass-through |
| | flow disabled. | flow enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42 PROTOCOL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Pn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \P2 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Selects V.42 protocol. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \P0 | LAPM protocol enabled. |
|--------------+---------------------------------------------|
| \P1 | MNP protocol enabled. |
|--------------+---------------------------------------------|
| » \P2 | LAPM/MNP protocol enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42 RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Vn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \V1 %C1 <CR> |
|--------------+---------------------------------------------|
| Description: | Selects V.42 result codes. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \V0 | Regular V.42 result codes disabled. |
|--------------+---------------------------------------------|
| » \V1 | Extended V.42 result codes enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42bis OPERATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Mn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \M0 &W <CR> |
|--------------+---------------------------------------------|
| Description: | Controls V.42bis operation. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \M0 | V.42bis enabled. |
|--------------+---------------------------------------------|
| \M1 | V.42bis disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42bis STRING LENGTH |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \H=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \H=13 <CR> |
|--------------+---------------------------------------------|
| Default: | 16 |
|--------------+---------------------------------------------|
| Range: | 6 - 250 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the string length in V.42bis. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIEW V.42-RELATED CONFIGURATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Sn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \S &W <CR> |
|--------------+---------------------------------------------|
| Description: | Shows the status of V.42 configuration. |
+------------------------------------------------------------+
Proprietary V.25bis Command Set
+------------------------------------------------------------+
| CALL FAILURE INDICATOR |
|------------------------------------------------------------|
| Type: | Response |
|--------------+---------------------------------------------|
| Format: | CFIxx |
|--------------+---------------------------------------------|
| Description: | Indicates that the attempt to connect |
| | failed. |
|------------------------------------------------------------|
| Response | Name | Description: |
|---------------+---------+----------------------------------|
| CFIAB | Abort | The call was aborted because |
| | | either no dialtone was detected |
| | | or a character was received from |
| | | the host computer. |
|---------------+---------+----------------------------------|
| CFICB | DCE | An incoming call was detected |
| | Busy | after the dialing command was |
| | | issued. |
|---------------+---------+----------------------------------|
| CFIET | Engaged | A busy signal was detected. |
| | Tone | |
|---------------+---------+----------------------------------|
| CFIND | No Dial | Modem didn’t detect a dailtone. |
|---------------+---------+----------------------------------|
| CFINS | Not | The memory address given did not |
| | Stored | contain a valid telephone |
| | | number. |
|---------------+---------+----------------------------------|
| CFINT | No Tone | The remote party did not issue a |
| | | response tone. |
|---------------+---------+----------------------------------|
| CFIRT | Ring | A responding tone was detected, |
| | Tone | but the call timed out before it |
| | | was completed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMAND SET - AT |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | RHA |
|--------------+---------------------------------------------|
| Example: | RHA<CR> |
|--------------+---------------------------------------------|
| Description: | Switch to AT command set. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTION |
|------------------------------------------------------------|
| Type: | Response |
|--------------+---------------------------------------------|
| Format: | CNX |
|--------------+---------------------------------------------|
| Description: | A connection has been successfully |
| | established. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INVALID |
|------------------------------------------------------------|
| Type: | Response |
|--------------+---------------------------------------------|
| Format: | INVxx |
|--------------+---------------------------------------------|
| Example: | INVCU |
|--------------+---------------------------------------------|
| Description: | The modem was issued an improper command. |
| | The two letters following indicate the |
| | error. |
|--------------+---------------------------------------------|
| Code | Meaning |
|--------------+---------------------------------------------|
| INVCU | An error occurred in transmission. |
|--------------+---------------------------------------------|
| INVMS | The command was too long or was followed by |
| | a semicolon. |
|--------------+---------------------------------------------|
| INVPS | An improper number parameters were issued. |
|--------------+---------------------------------------------|
| INVPV | The parameters were ignored or invalid. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| STORED NUMBERS LIST |
|------------------------------------------------------------|
| Type: | Result code |
|--------------+---------------------------------------------|
| Format: | LSNxxxx |
|--------------+---------------------------------------------|
| Example: | LSN 443-3388 |
|--------------+---------------------------------------------|
| Description: | Displays stored numbers. xxxx may specify a |
| | memory location, phone number, or status. |
| | If no code was specified with RLN, all |
| | stored numbers are displayed. |
+------------------------------------------------------------+