TEXT View Source
# ACER AMERICA CORPORATION
MODEM 2424
Modem Type Data (synchronous/asynchronous)
Maximum Data Rate 2400bps
Data Bus External
Data Modulation Protocol Bell 103A/212A, 201
ITU-T V.22, V.22bis
Error Correction/Compression MNP4
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------------+----------|
| Line out | CN1 | DC power | CN4 |
|-----------------+----------+--------------------+----------|
| Line in | CN2 | Power switch | SW6 |
|-----------------+----------+--------------------+----------|
| RS-232C | CN3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| OFF HOOK |
|------------------------------------------------------------|
| Status | SW4 |
|-------------------------------+----------------------------|
| » Talk mode | Off |
|-------------------------------+----------------------------|
| Data mode | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ANSWER MODE |
|------------------------------------------------------------|
| Status | SW3 |
|-------------------------------+----------------------------|
| » Originate | Off |
|-------------------------------+----------------------------|
| Answer | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MODEM SPEED |
|------------------------------------------------------------|
| Speed | SW2 |
|-------------------------------+----------------------------|
| » 2400bps | Off |
|-------------------------------+----------------------------|
| 1200bps | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO TEST |
|------------------------------------------------------------|
| Status | SW1 |
|-------------------------------+----------------------------|
| » Disabled | Off |
|-------------------------------+----------------------------|
| Enabled | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMAND SET DISABLE |
|------------------------------------------------------------|
| Status | SW5/1 |
|-------------------------------+----------------------------|
| AT command set disabled | On |
|-------------------------------+----------------------------|
| AT command set enabled | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE TYPE |
|------------------------------------------------------------|
| Status | SW5/2 |
|-------------------------------+----------------------------|
| Force leased line | On |
|-------------------------------+----------------------------|
| Normal operation | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ERROR CORRECTION |
|------------------------------------------------------------|
| Status | SW5/3 |
|-------------------------------+----------------------------|
| Disabled | On |
|-------------------------------+----------------------------|
| Enabled | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ECHO AND RESULT CODE |
|------------------------------------------------------------|
| Status | SW5/4 |
|-------------------------------+----------------------------|
| Disabled | On |
|-------------------------------+----------------------------|
| Normal operation | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO ANSWER |
|------------------------------------------------------------|
| Status | SW5/5 |
|-------------------------------+----------------------------|
| Set to one ring | On |
|-------------------------------+----------------------------|
| Normal operation | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYNCHRONOUS TRANSMIT CLOCK SOURCE |
|------------------------------------------------------------|
| Status | SW5/6 |
|-------------------------------+----------------------------|
| DTE generates clock | On |
|-------------------------------+----------------------------|
| Normal operation | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYNCRONOUS DATA MODE |
|------------------------------------------------------------|
| Status | SW5/7 |
|-------------------------------+----------------------------|
| Enabled | On |
|-------------------------------+----------------------------|
| Normal operation | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DSR AND CTS |
|------------------------------------------------------------|
| Status | SW5/8 |
|-------------------------------+----------------------------|
| Force high | On |
|-------------------------------+----------------------------|
| Normal operation | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Status | Condition |
|------+-----------+-----------------------------------------|
| EF | On | Error correction enabled |
|------+-----------+-----------------------------------------|
| EF | Off | Error correction disabled |
|------+-----------+-----------------------------------------|
| HS | On | Modem is operating at 2400bps |
|------+-----------+-----------------------------------------|
| HS | Off | Modem is operating at 1200bps or 300bps |
|------+-----------+-----------------------------------------|
| AA | On | Auto answer enabled |
|------+-----------+-----------------------------------------|
| AA | Off | Auto answer disabled |
|------+-----------+-----------------------------------------|
| CD | On | Carrier signal detected |
|------+-----------+-----------------------------------------|
| CD | Off | Carrier signal not detected |
|------+-----------+-----------------------------------------|
| OH | On | Modem is off-hook |
|------+-----------+-----------------------------------------|
| OH | Off | Modem is on-hook |
|------+-----------+-----------------------------------------|
| RD | On | Modem is receiving data |
|------+-----------+-----------------------------------------|
| RD | Off | Modem is not receiving data |
|------+-----------+-----------------------------------------|
| SD | On | Modem is transmitting data |
|------+-----------+-----------------------------------------|
| SD | Off | Modem is not transmitting data |
|------+-----------+-----------------------------------------|
| TR | On | DTR signal is high |
|------+-----------+-----------------------------------------|
| TR | Off | DTR signal is low |
|------+-----------+-----------------------------------------|
| MR | On | Power on |
|------+-----------+-----------------------------------------|
| MR | Off | Power off |
|------+-----------+-----------------------------------------|
| MR | Blinking | Modem is performing self-test |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| ACCEPT RELIABLE MODE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Un |
|--------------+---------------------------------------------|
| Example: | AT \U<CR> |
|--------------+---------------------------------------------|
| Description: | Accepts remote modem’s request for reliable |
| | link. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-RELIABLE TIME BUFFER CONFIGURATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Cn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \C1 &W<CR> |
|--------------+---------------------------------------------|
| Description: | Controls the handling of incoming data |
| | during auto-reliable time period. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \C0 | Data is discarded. |
|--------------+---------------------------------------------|
| \C1 | Data is buffered. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-RELIABLE FALLBACK CHARACTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S20=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS20=20<CR> |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-127 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used as the |
| | auto-reliable fallback character. S20=0 |
| | will disable this function. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-RETRAIN |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT %En |
|--------------+---------------------------------------------|
| Example: | AT %E1 <CR> |
|--------------+---------------------------------------------|
| Description: | Selects auto-retrain mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » %E0 | Auto-retrain disabled. |
|--------------+---------------------------------------------|
| %E1 | Auto-retrain enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT MAPPED REGISTER S14 |
|------------------------------------------------------------|
| Format | AT [cmds] S14=n [cmds] |
|---------------+--------------------------------------------|
| Example: | ATS14=40<CR> |
|---------------+--------------------------------------------|
| Default: | 170 |
|---------------+--------------------------------------------|
| Range: | 0 - 253 |
|---------------+--------------------------------------------|
| Unit: | Bit-mapped |
|---------------+--------------------------------------------|
| Description: | Controls CTS signal, command echo, result |
| | codes, command set, dialing mode, and |
| | answer/originate mode. |
|------------------------------------------------------------|
| Bit | Value | Function |
|---------+---------+----------------------------------------|
| 0 | » 0 1 | CTS normal. |
| | | |
| | | CTS forced high. |
|---------+---------+----------------------------------------|
| 1 | 0 » 1 | Command echo disabled. |
| | | |
| | | Command echo enabled. |
|---------+---------+----------------------------------------|
| 2 | » 0 1 | Result codes enabled. |
| | | |
| | | Result codes disabled. |
|---------+---------+----------------------------------------|
| 3 | 0 » 1 | Display numeric result codes. |
| | | |
| | | Display verbose result codes. |
|---------+---------+----------------------------------------|
| 4 | » 0 1 | AT command set enabled. |
| | | |
| | | AT command set disabled |
|---------+---------+----------------------------------------|
| 5 | 0 » 1 | Tone dialing enabled. |
| | | |
| | | Pulse dialing enabled. |
|---------+---------+----------------------------------------|
| 6 | 0 | Not used |
|---------+---------+----------------------------------------|
| 7 | 0 » 1 | Answer mode enabled. |
| | | |
| | | Originate mode enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S21 |
|------------------------------------------------------------|
| Format | AT [cmds] S21=n [cmds] |
|----------------+-------------------------------------------|
| Example: | ATS21=4<CR> |
|----------------+-------------------------------------------|
| Default: | 32 |
|----------------+-------------------------------------------|
| Range: | 0 - 253 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Selects jack type, CTS signal, low DTR |
| | action, DCD signal, DSR signal, and the |
| | Long Space Disconnect function. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 0 | » 0 1 | Selects RJ-11, RJ-41S, or RJ45S jack. |
| | | |
| | | Selects RJ-12 or RJ-13 jack. |
|----------+-------+-----------------------------------------|
| 1 | 0 | Not used. |
|----------+-------+-----------------------------------------|
| 2 | 0 » 1 | CTS follows RTS. |
| | | |
| | | CTS forced high. |
|----------+-------+-----------------------------------------|
| 4, 3 | » 00 | DTR signal ignored. |
| | 01 10 | |
| | 11 | Modem goes to command mode on low DTR. |
| | | |
| | | Modem disconnects on low DTR. |
| | | Auto-Answer is disabled. |
| | | |
| | | Modem is initialized on low DTR. |
|----------+-------+-----------------------------------------|
| 5 | 0 » 1 | DCD forced high. |
| | | |
| | | DCD normal. |
|----------+-------+-----------------------------------------|
| 6 | 0 | Not used. |
|----------+-------+-----------------------------------------|
| 7 | » 0 1 | Long Space Disconnect function |
| | | disabled. |
| | | |
| | | Long Space Disconnect function enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S22 |
|------------------------------------------------------------|
| Format | AT [cmds] S22=n [cmds] |
|----------------+-------------------------------------------|
| Example: | ATS22=117<CR> |
|----------------+-------------------------------------------|
| 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. |
| | 01 10 | |
| | 11 | On volume. |
| | | |
| | | Medium level volume. |
| | | |
| | | High level volume. |
|-----------+-------+----------------------------------------|
| 3, 2 | 00 » | Speaker off. |
| | 01 10 | |
| | 11 | Speaker off on carrier. |
| | | |
| | | Speaker always on. |
| | | |
| | | Speaker on during handshake. |
|-----------+-------+----------------------------------------|
| 6, 5, 4 | 000 | Basic result codes only enabled. |
| | 100 | |
| | 101 | Basic and connection speed result |
| | 110 » | codes enabled. |
| | 111 | |
| | | Basic and connection speed result |
| | | codes and dialtone detection enabled. |
| | | |
| | | All result codes except dialtone |
| | | detection enabled. |
| | | |
| | | All result codes enabled. |
|-----------+-------+----------------------------------------|
| 7 | » 0 1 | 39/61ms at 10pps (North America) |
| | | |
| | | 33/67ms at 10pps (Europe) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S23 |
|------------------------------------------------------------|
| Format | AT [cmds] S23=n [cmds] |
|------------------+-----------------------------------------|
| Example: | ATS23=177<CR> |
|------------------+-----------------------------------------|
| Default: | 5 |
|------------------+-----------------------------------------|
| Range: | 0-255 |
|------------------+-----------------------------------------|
| Unit: | Bit-mapped |
|------------------+-----------------------------------------|
| Description: | Grants/denies remote digital loopback, |
| | controls DTE rate and parity, and sets |
| | guard tone. |
|------------------------------------------------------------|
| Bit | Value | Function |
|------------+--------+--------------------------------------|
| 0 | 0 » 1 | Remote digital loopback denied. |
| | | |
| | | Remote digital loopback allowed. |
|------------+--------+--------------------------------------|
| 3, 2, 1 | 000 | Sets serial port speed to 0-300bps. |
| | 001 » | |
| | 010 | Sets serial port speed to 600bps. |
| | 011 | |
| | 100 | Sets serial port speed to 1200bps. |
| | 101 | |
| | 110 | Sets serial port speed to 2400bps. |
| | | |
| | | Sets serial port speed to 4800bps. |
| | | |
| | | Sets serial port speed to 9600bps. |
| | | |
| | | Sets serial port speed to 19200bps. |
|------------+--------+--------------------------------------|
| 5,4 | » 00 | Even parity. |
| | 01 10 | |
| | 11 | Space parity. |
| | | |
| | | Odd parity. |
| | | |
| | | Mark or no parity. |
|------------+--------+--------------------------------------|
| 7, 6 | » 00 | Guard tone disabled. |
| | 01 10 | |
| | | Guard tone disabled. |
| | | |
| | | Guard tone 1800Hz enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S27 |
|------------------------------------------------------------|
| Format | AT [cmds] S27=n [cmds] |
|----------------+-------------------------------------------|
| Example: | ATS27=192<CR> |
|----------------+-------------------------------------------|
| Default: | 9 |
|----------------+-------------------------------------------|
| Range: | 0 - 127 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Selects sync/async mode, line type, clock |
| | source, and ITU-T/Bell modes. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 1, 0 | 00 01 | Asynchronous command and data modes. |
| | » 10 | |
| | 11 | Asynchronous command, synchronous |
| | | connect mode. |
| | | |
| | | DTR dialing enabled, synchronous |
| | | connect mode. |
| | | |
| | | Manual dialing only, synchronous |
| | | connect mode. |
|----------+-------+-----------------------------------------|
| 2 | » 0 1 | Switched line. |
| | | |
| | | Leased line. |
|----------+-------+-----------------------------------------|
| 3 | 0 | Not used. |
|----------+-------+-----------------------------------------|
| 5, 4 | » 00 | Internal DTE transmit clock source. |
| | 01 10 | |
| | | External DTE transmit clock source. |
| | | |
| | | Slave DTE transmit clock source. |
|----------+-------+-----------------------------------------|
| 6 | » 0 1 | ITU-T mode enabled. |
| | | |
| | | Bell mode disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK SEND |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Bn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \B3 &W<CR> |
|--------------+---------------------------------------------|
| Range: | 1-9 |
|--------------+---------------------------------------------|
| Unit: | .1 second |
|--------------+---------------------------------------------|
| Description: | Sends break to modem. |
+------------------------------------------------------------+
+----------------------------------------------------------------+
| BREAK TYPE |
|----------------------------------------------------------------|
|Type: |Configuration |
|------------------+---------------------------------------------|
|Format: |AT [cmds] \Kn [cmds] |
|------------------+---------------------------------------------|
|Example: |AT \K1 <CR> |
|------------------+---------------------------------------------|
|Description: |Configures action of break signal. |
|----------------------------------------------------------------|
| Command |Break from DTE | Break from | Modem | Break from |
| | | DTE |receives \B |remote modem|
| |Reliable/Normal| | | |
| | mode |Direct mode | | |
|---------+---------------+------------+------------+------------|
|\K0 |Enter command |Send break |Buffers |Buffers |
| |mode, do not |to remote |cleared and |cleared and |
| |send break to |modem |break sent |break sent |
| |remote modem. |immediately,|to remote |to DTE. |
| | |then enter |modem. | |
| | |command | | |
| | |mode. | | |
|---------+---------------+------------+------------+------------|
|\K1 |Buffers cleared|Send break |Buffers |Buffers |
| |and break sent |to remote |cleared and |cleared and |
| |to remote |modem |break sent |break sent |
| |modem. |immediately.|to remote |to DTE. |
| | | |modem. | |
|---------+---------------+------------+------------+------------|
|\K2 |Enter command |Send break |Send break |Send break |
| |mode, do not |to remote |to remote |to DTE |
| |send break to |modem |modem |immediately.|
| |remote modem. |immediately,|immediately.| |
| | |then enter | | |
| | |command | | |
| | |mode. | | |
|---------+---------------+------------+------------+------------|
|\K3 |Send break to |Send break |Send break |Send break |
| |remote modem |to remote |to remote |to DTE |
| |immediately. |modem |modem |immediately.|
| | |immediately.|immediately.| |
|---------+---------------+------------+------------+------------|
|\K4 |Enter command |Send break |Send break |Break sent |
| |mode, do not |to remote |to remote |with |
| |send break to |modem |modem with |received |
| |remote modem. |immediately,|transmitted |data to the |
| | |then enter |data. |DTE. |
| | |command | | |
| | |mode. | | |
|---------+---------------+------------+------------+------------|
|» \K5 |Send break with|Send break |Send break |Break sent |
| |transmitted |to remote |to remote |with |
| |data. |modem |modem with |received |
| | |immediately.|transmitted |data to the |
| | | |data. |DTE. |
+----------------------------------------------------------------+
+------------------------------------------------------------+
| CHANGE FUNCTION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Z<cmds> |
|--------------+---------------------------------------------|
| Example: | AT %Z DP(303)443-3388<CR> |
|--------------+---------------------------------------------|
| Description: | Changes the function of SW1 to execute the |
| | commands given as a parameter. If no |
| | commands are given, it restores default |
| | setting of self-test. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Nn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \N1 DT555-1212<CR> |
|--------------+---------------------------------------------|
| Description: | Sets connect mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \N0 | Normal mode. |
|--------------+---------------------------------------------|
| » \N1 | Direct mode. |
|--------------+---------------------------------------------|
| \N2 | Reliable mode. |
|--------------+---------------------------------------------|
| \N3 | Auto-reliable mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTION SPEED UPPER LIMIT |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Bn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %L3 %B14 \J0<CR> |
|--------------+---------------------------------------------|
| Description: | Sets fastest allowed connection speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %B300 | Select 300bps maximum speed. |
|--------------+---------------------------------------------|
| %B600 | Select 600bps maximum speed. |
|--------------+---------------------------------------------|
| %B1200 | Select 1200bps maximum speed. |
|--------------+---------------------------------------------|
| » %B2400 | Select 2400bps maximum speed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONVERT TO RELIABLE MODE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Y [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \Y<CR> |
|--------------+---------------------------------------------|
| Description: | Initiates reliable mode link. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CTS SIGNAL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Dn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \D0<CR> |
|--------------+---------------------------------------------|
| Description: | Controls action of Clear To Send signal. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \D0 | CTS forced high. |
|--------------+---------------------------------------------|
| \D1 | CTS normal. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] D[phone# & modifiers] [;cmds] |
|--------------+---------------------------------------------|
| Example: | AT H1 DF 9W *70, 1(303) 555-1212 <CR> |
|--------------+---------------------------------------------|
| 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 |
|--------------+---------------------------------------------|
| DF | Fast pulse dial, sends 20 pulses per |
| | second. |
|--------------+---------------------------------------------|
| DX | Dial second stored telephone number |
|--------------+---------------------------------------------|
| D\n | Auto redial n times |
|--------------+---------------------------------------------|
| DM | Set AT\N3, AT\V1, AT\Q1, AT\J0 until modem |
| | returns to on-hook. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY STORED PHONE NUMBERS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \F [cmds] |
|--------------+---------------------------------------------|
| Example: | AT &Z2=9W1-303-555-1212 \F<CR> |
|--------------+---------------------------------------------|
| Description: | Displays all stored phone numbers. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ECHO DATA |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \En [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \E0<CR> |
|--------------+---------------------------------------------|
| Description: | Displays data sent from DTR to modem |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \E0 | Disabled |
|--------------+---------------------------------------------|
| \E1 | Enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EXTENDED RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Vn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \V1 %C1<CR> |
|--------------+---------------------------------------------|
| Description: | Selects MNP result codes. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \V0 | MNP result codes disabled. |
|--------------+---------------------------------------------|
| \V1 | MNP result codes enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Qn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \Q5<CR> |
|--------------+---------------------------------------------|
| Description: | Sets type of flow control used by modem. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \Q0 | Flow control disabled. |
|--------------+---------------------------------------------|
| » \Q1 | Bidirectional XON/XOFF flow control |
| | enabled. |
|--------------+---------------------------------------------|
| \Q2 | CTS flow control by DCE enabled. |
|--------------+---------------------------------------------|
| \Q3 | Bidirectional CTS/RTS flow control enabled. |
|--------------+---------------------------------------------|
| \Q4 | Flow control by DCE disabled. |
|--------------+---------------------------------------------|
| » \Q5 | XON/XOFF flow control by DCE enabled. |
|--------------+---------------------------------------------|
| \Q6 | RTS flow control by DCE enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HELP SCREENS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] ?n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT ?1<CR> |
|--------------+---------------------------------------------|
| Description: | Displays help menus. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » ?1 | Displays standard AT command set |
|--------------+---------------------------------------------|
| ?2 | Displays proprietary & command set |
|--------------+---------------------------------------------|
| ?3 | Displays dial modifier commands |
|--------------+---------------------------------------------|
| ?4 | Displays S register contents. |
|--------------+---------------------------------------------|
| ?5 | Displays proprietary \ command set |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INACTIVITY TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S24=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS24=20<CR> |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-90 |
|--------------+---------------------------------------------|
| Unit: | 1 minute |
|--------------+---------------------------------------------|
| Description: | Sets the length of time that the modem does |
| | not receive information before it |
| | disconnects. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INACTIVITY TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Tn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT\T20<CR> |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | 1 second |
|--------------+---------------------------------------------|
| Description: | Sets the length of time that the modem does |
| | not receive information before it |
| | disconnects. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERFACE PROTOCOL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \In [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \I0<CR> |
|--------------+---------------------------------------------|
| Description: | Controls data exchange between applications |
| | and modem. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \I0 | Disabled. |
|--------------+---------------------------------------------|
| \I1 | Enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Gn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT G1 &M0<CR> |
|--------------+---------------------------------------------|
| Description: | Selects modem port flow control. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \G0 | Flow control disabled. |
|--------------+---------------------------------------------|
| \G1 | Flow control enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCK SERIAL PORT |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Jn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %L3 %B14 \J0<CR> |
|--------------+---------------------------------------------|
| Description: | Sets operation of serial port speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \J0 | Serial speed locked. |
|--------------+---------------------------------------------|
| » \J1 | Serial speed follows connect speed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAXIMUM BLOCK SIZE FOR TRANSMISSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \An [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \A3 %C1<CR> |
|--------------+---------------------------------------------|
| Description: | Sets the maximum transmittable block size. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \A0 | MNP block size is 64 characters. |
|--------------+---------------------------------------------|
| \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] |
|--------------+---------------------------------------------|
| Example: | AT \L1 DT555-1212<CR> |
|--------------+---------------------------------------------|
| Description: | Selects the transfer mode for MNP. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \L0 | Stream mode for MNP enabled. |
|--------------+---------------------------------------------|
| \L1 | Block mode after four second delayfor MNP |
| | enabled. |
|--------------+---------------------------------------------|
| \L2 | Block mode for MNP enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON-LINE IN RELIABLE MODE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \On |
|--------------+---------------------------------------------|
| Example: | AT \O<CR> |
|--------------+---------------------------------------------|
| Description: | Returns to on-line and requests reliable |
| | mode connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT CONFIGURATION PROFILES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Sn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \S0<CR> |
|--------------+---------------------------------------------|
| Description: | Reports active configuration profiles. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT CONFIGURATION SWITCH SETTINGS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %S [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %S<CR> |
|--------------+---------------------------------------------|
| Description: | Displays SW5 settings |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT NORMAL/TEST STATUS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %F [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %F<CR> |
|--------------+---------------------------------------------|
| Description: | Displays current setting of SW1 |
| | (Normal/Test) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT PRODUCT VERSION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %V [cmds] |
|--------------+---------------------------------------------|
| Example: | AT I3 &V1 %V<CR> |
|--------------+---------------------------------------------|
| Description: | Reports product version. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RETURN TO RELIABLE MODE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Z [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \Z <CR> |
|--------------+---------------------------------------------|
| Description: | Ends reliable mode link, initiate return to |
| | normal mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RI SIGNAL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Rn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \R0 Q0<CR> |
|--------------+---------------------------------------------|
| Description: | Controls the behavior of the Ring Indicator |
| | signal. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \R0 | RI signal high during rings, and forced |
| | high for duration of call. |
|--------------+---------------------------------------------|
| » \R1 | RI signal high during rings only. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| STORE SECOND PHONE NUMBER IN NVRAM |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Pn [dialstring] |
|--------------+---------------------------------------------|
| Example: | AT\P<CR> |
|--------------+---------------------------------------------|
| Description: | Stores a second phone number in the modem’s |
| | memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REDIAL DELAY |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S19=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT S19=60<CR> |
|--------------+---------------------------------------------|
| Default: | 45 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | 1 second |
|--------------+---------------------------------------------|
| Description: | Configures how long the modem will wait to |
| | redial a number after a dial attempt has |
| | failed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Format | AT [cmds] S16=n [cmds] |
|---------------+--------------------------------------------|
| Example: | ATS16=40<CR> |
|---------------+--------------------------------------------|
| Default: | 0 |
|---------------+--------------------------------------------|
| Range: | 0-125 |
|---------------+--------------------------------------------|
| Unit: | Bit-mapped |
|---------------+--------------------------------------------|
| Description: | Controls loopback tests, analog, digital, |
| | remote digital, and self tests. |
|------------------------------------------------------------|
| Bit | Value | Function |
|---------+-------+------------------------------------------|
| 0 | 0 | Local analog loopback not in progress. |
| | | |
| | 1 | Local analog loopback in progress. |
|---------+-------+------------------------------------------|
| 1 | 0 | Not used. |
|---------+-------+------------------------------------------|
| 2 | 0 | Local digital loopback not in progress. |
| | | |
| | 1 | Local digital loopback in progress. |
|---------+-------+------------------------------------------|
| 3 | 0 | Remote digital loopback not in progress. |
| | | |
| | 1 | Remote digital loopback in progress. |
|---------+-------+------------------------------------------|
| 4 | 0 | Remote digital loopback not requested. |
| | | |
| | 1 | Remote digital loopback requested. |
|---------+-------+------------------------------------------|
| 5 | 0 | Remote digital loopback with self-test |
| | | not in progress. |
| | 1 | |
| | | Remote digital loopback with self-test |
| | | in progress. |
|---------+-------+------------------------------------------|
| 6 | 0 | Local analog loopback with self-test not |
| | | in progress. |
| | 1 | |
| | | Local analog loopback with self-test in |
| | | progress. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| XON/XOFF PASS-THROUGH |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Xn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \X0 O<CR> |
|--------------+---------------------------------------------|
| Description: | Selects whether XON/XOFF signals are sent |
| | to remote modem. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \X0 | XON/XOFF signals trapped by local modem. |
|--------------+---------------------------------------------|
| \X1 | XON/XOFF passed through local modem. |
+------------------------------------------------------------+