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# MEGAHERTZ CORPORATION
A2144
Modem Type Data (synchronous/asynchronous)/Fax
Maximum Data Rate 14.4Kbps
Maximum Fax Rate 14.4Kbps
Data Bus PCMCIA Type II
Fax Class Class II
Data Modulation Bell 103A/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32b, V.32bis
Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29
Protocol
Error MNP10, MNP5, V.42, V.42bis
Correction/Compression
V1283
Proprietary AT Command Set
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S14 |
|------------------------------------------------------------|
| Format | AT [cmds] S14=n [cmds] |
|-----------------+------------------------------------------|
| Example: | ATS14=138<CR> |
|-----------------+------------------------------------------|
| Default: | 138 |
|-----------------+------------------------------------------|
| Range: | 0 - 174 |
|-----------------+------------------------------------------|
| Unit: | Bit-mapped |
|-----------------+------------------------------------------|
| Description: | Controls echo, result codes, result code |
| | display, dial mode, and answer/originate |
| | mode. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+------------+------------------------------------|
| 0 | 0 | Not used. |
|----------+------------+------------------------------------|
| 1 | 0 » 1 | Command echo disabled. |
| | | |
| | | Command echo enabled. |
|----------+------------+------------------------------------|
| 2 | » 0 1 | Result codes enabled. |
| | | |
| | | Result codes disabled. |
|----------+------------+------------------------------------|
| 3 | 0 » 1 | Display result codes in numeric |
| | | format. |
| | | |
| | | Display result codes in verbose |
| | | format. |
|----------+------------+------------------------------------|
| 4 | 0 | Not used. |
|----------+------------+------------------------------------|
| 5 | » 0 1 | Tone dial enabled. |
| | | |
| | | Pulse dial 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: | AT S21=169 <CR> |
|----------------+-------------------------------------------|
| Default: | 4 |
|----------------+-------------------------------------------|
| Range: | 0 - 253 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Controls 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 1 | DSR forced high. |
| | | |
| | | DSR normal. |
|----------+-------+-----------------------------------------|
| 7 | » 0 1 | Long Space Disconnect function |
| | | disabled. |
| | | |
| | | Long Space Disconnect function enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S22 |
|------------------------------------------------------------|
| Format | AT [cmds] S22=n [cmds] |
|----------------+-------------------------------------------|
| Example: | AT S22=89 <CR> |
|----------------+-------------------------------------------|
| Default: | 117 |
|----------------+-------------------------------------------|
| Range: | 0 - 127 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Controls speaker volume and controls, and |
| | result codes. |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+-------+----------------------------------------|
| 1, 0 | 00 » | Off volume. |
| | 01 10 | |
| | 11 | Low 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. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S23 |
|------------------------------------------------------------|
| Format | AT [cmds] S23=n [cmds] |
|------------------+-----------------------------------------|
| Example: | ATS23=152<CR> |
|------------------+-----------------------------------------|
| Default: | 183 |
|------------------+-----------------------------------------|
| 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 01 | Parity even. |
| | 10 » | |
| | 11 | Not used. |
| | | |
| | | Parity odd. |
| | | |
| | | No parity. |
|------------+--------+--------------------------------------|
| 7, 6 | 00 01 | Guard tone disabled. |
| | » 10 | |
| | | Guard tone disabled. |
| | | |
| | | Guard tone 1800Hz enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S27 |
|------------------------------------------------------------|
| Format | AT [cmds] S27=n [cmds] |
|----------------+-------------------------------------------|
| Example: | AT S27=8 <CR> |
|----------------+-------------------------------------------|
| Default: | 9 |
|----------------+-------------------------------------------|
| Range: | 0 - 127 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Controls connection mode, line type, |
| | internal clock, and protocols. |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+-------+----------------------------------------|
| 3, 1, 0 | 000 | Asynchronous mode, serial port speed |
| | 001 » | follows connect speed. |
| | 101 | |
| | 110 | Asynchronous off-line command mode and |
| | | synchronous connect mode. |
| | | |
| | | Error-correcting mode. |
| | | |
| | | Asynchronous mode, serial port speed |
| | | locked. |
|-----------+-------+----------------------------------------|
| 2 | » 0 1 | Dial up line. |
| | | |
| | | Leased line. |
|-----------+-------+----------------------------------------|
| 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 protocols. |
| | | |
| | | Bell protocols. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S28 |
|------------------------------------------------------------|
| Format | AT [cmds] S28=n [cmds] |
|----------------+-------------------------------------------|
| Example: | AT S28=8 <CR> |
|----------------+-------------------------------------------|
| Default: | 0 |
|----------------+-------------------------------------------|
| Range: | 0 - 31 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Controls V.23 split speed, V.23 split |
| | screen, V.23 half duplex, and pulse |
| | dialing. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 0 | » 0 1 | V.23 split speed operation disabled. |
| | | |
| | | V.23 split speed operation enabled. |
|----------+-------+-----------------------------------------|
| 1 | » 0 1 | Select 75bps transmit, 1200bps receive. |
| | | |
| | | Select 1200bps transmit, 75bps receive. |
|----------+-------+-----------------------------------------|
| 2 | » 0 1 | 1200bps transmit , 1200bps receive |
| | | disabled. |
| | | |
| | | 1200bps transmit , 1200bps receive |
| | | enabled. |
|----------+-------+-----------------------------------------|
| 4, 3 | » 00 | 39ms make/61ms break at 10pps. |
| | 01 10 | |
| | 11 | 33ms make/67ms break at 10pps. |
| | | |
| | | 39ms make/61ms break at 20pps. |
| | | |
| | | 33ms make/67ms break at 20pps. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S31 |
|------------------------------------------------------------|
| Format | AT [cmds] S31=n [cmds] |
|----------------+-------------------------------------------|
| Example: | AT S31=69 <CR> |
|----------------+-------------------------------------------|
| Default: | 0 |
|----------------+-------------------------------------------|
| Range: | 0 - 255 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Controls auto-baud function and result |
| | codes. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 0 | 0 | Not used. |
|----------+-------+-----------------------------------------|
| 1 | 0 » 1 | Auto-baud disabled. |
| | | |
| | | Auto-baud enabled. |
|----------+-------+-----------------------------------------|
| 2 | » 00 | DTE speed displayed in result codes. |
| | 01 10 | |
| | | Extended result codes enabled and DCE |
| | | speed displayed in result codes. |
| | | |
| | | DCE speed displayed in result codes. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S40 |
|------------------------------------------------------------|
| Format | AT [cmds] S40=n [cmds] |
|----------------+-------------------------------------------|
| Example: | AT S40=155 <CR> |
|----------------+-------------------------------------------|
| Default: | 105 |
|----------------+-------------------------------------------|
| Range: | 0 - 255 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Controls power level and break handling, |
| | MNP10, link negotiation, and block size. |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+-------+----------------------------------------|
| 0 | í0 | MNP10 disabled. |
| | | |
| | » 1 | MNP10 enabled. |
|-----------+-------+----------------------------------------|
| 1 | » 0 1 | Power level adjustment enabled. |
| | | |
| | | Power level adjustment disabled. |
|-----------+-------+----------------------------------------|
| 2 | » 0 1 | Link will be negotiated at highest |
| | | possible speed. |
| | | |
| | | Link will be negotiated at 1200bps. |
|-----------+-------+----------------------------------------|
| 5, 4, 3 | 000 | Selects \K0. |
| | 001 | |
| | 010 | Selects \K1. |
| | 011 | |
| | 100 » | Selects \K2. |
| | 101 | |
| | | Selects \K3. |
| | | |
| | | Selects \K4. |
| | | |
| | | Selects \K5. |
|-----------+-------+----------------------------------------|
| 7, 6 | 00 » | MNP block size is 64 characters. |
| | 01 10 | |
| | 11 | MNP block size is 128 characters. |
| | | |
| | | MNP block size is 192 characters. |
| | | |
| | | MNP block size is 256 characters. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S41 |
|------------------------------------------------------------|
| Format | AT [cmds] S41=n [cmds] |
|-----------------+------------------------------------------|
| Example: | AT S41=18 <CR> |
|-----------------+------------------------------------------|
| Default: | 3 |
|-----------------+------------------------------------------|
| Range: | 0 - 31 |
|-----------------+------------------------------------------|
| Unit: | Bit-mapped |
|-----------------+------------------------------------------|
| Description: | Selects compression, auto-retrain, flow |
| | control, and MNP mode. |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+-------------+----------------------------------|
| 1 - 0 | 00 01 10 » | Data compression disabled. |
| | 11 | |
| | | MNP5 enabled. |
| | | |
| | | V.42bis enabled. |
| | | |
| | | MNP5 and V.42bis enabled. |
|-----------+-------------+----------------------------------|
| 2 | » 0 1 | Auto-retrain disabled. |
| | | |
| | | Auto-retrain enabled. |
|-----------+-------------+----------------------------------|
| 3 | » 0 1 | Flow control disabled. |
| | | |
| | | Flow control enabled. |
|-----------+-------------+----------------------------------|
| 4 | » 0 1 | Stream mode for MNP. |
| | | |
| | | Block mode for MNP. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S80 |
|------------------------------------------------------------|
| Format | AT [cmds] S80=n [cmds] |
|-----------------+------------------------------------------|
| Example: | AT S80=223< CR> |
|-----------------+------------------------------------------|
| Default: | 0 |
|-----------------+------------------------------------------|
| Range: | 0 - 224 |
|-----------------+------------------------------------------|
| Unit: | Bit-mapped |
|-----------------+------------------------------------------|
| Description: | Controls command sets, remote |
| | configuration, and call back security. |
| | Also accesses EPROM data lines. |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+----------+-------------------------------------|
| 0 - 4 | N/A | EPROM data lines. |
|-----------+----------+-------------------------------------|
| 5 | » 0 1 | AT command set enabled. |
| | | |
| | | V.25bis command set enabled. |
|-----------+----------+-------------------------------------|
| 6 | » 0 1 | Remote configuration disabled. |
| | | |
| | | Remote configuration enabled. |
|-----------+----------+-------------------------------------|
| 7 | » 0 1 | Call back security disabled. |
| | | |
| | | Call back security enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | Modem | Break |
| | DTE | receives \B | received |
| | | | from remote |
| | | | modem |
|---------------+---------------+--------------+-------------|
| \K0 | Online | Break sent | Buffers |
| | command mode | to remote | cleared, |
| | enabled, send | modem and | break sent |
| | no break to | buffered | to DTE. |
| | remote modem. | cleared. | |
|---------------+---------------+--------------+-------------|
| \K1 | Break sent to | Break sent | Buffers |
| | remote modem | to remote | cleared, |
| | and buffered | modem and | break sent |
| | cleared. | buffered | to DTE. |
| | | cleared. | |
|---------------+---------------+--------------+-------------|
| \K2 | Online | Send break | Break sent |
| | command mode | to remote | immediately |
| | enabled, send | modem | to DTE. |
| | no break to | immediately. | |
| | remote modem. | | |
|---------------+---------------+--------------+-------------|
| \K3 | Send break to | Send break | Break sent |
| | remote modem | to remote | immediately |
| | immediately. | modem | to DTE. |
| | | immediately. | |
|---------------+---------------+--------------+-------------|
| \K4 | Online | Send break | Break sent |
| | command mode | with | with |
| | enabled, send | transmitted | received |
| | no break to | data. | data to the |
| | remote modem. | | DTE. |
|---------------+---------------+--------------+-------------|
| \K5 | Send break | Send break | Break sent |
| | with | with | with |
| | transmitted | transmitted | received |
| | data. | data. | data to the |
| | | | DTE. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONFIGURATION PROFILES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Sn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT\S0 <CR> |
|--------------+---------------------------------------------|
| Description: | Displays active configuration profiles. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Nn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \N3 DT555-1212<CR> |
|--------------+---------------------------------------------|
| Description: | Sets connect mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \N0 | Normal mode enabled. |
|--------------+---------------------------------------------|
| \N2 | Reliable mode enabled. |
|--------------+---------------------------------------------|
| \N3 | Auto-reliable mode enabled. |
|--------------+---------------------------------------------|
| \N4 | LAPM mode enabled. |
|--------------+---------------------------------------------|
| \N5 | MNP mode enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY STORED NUMBERS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Fn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \F2=9W1-303-555-1212 \F?<CR> |
|--------------+---------------------------------------------|
| Description: | Displays all stored phone numbers. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ERROR CORRECTION REJECTION |
|------------------------------------------------------------|
| Format | AT [cmds] S36=n [cmds] |
|-----------------+------------------------------------------|
| Example: | AT S36=3 <CR> |
|-----------------+------------------------------------------|
| Default: | 7 |
|-----------------+------------------------------------------|
| Range: | 0 - 7 |
|-----------------+------------------------------------------|
| Unit: | Bit-mapped |
|-----------------+------------------------------------------|
| Description: | Configures the modem’s behavior if an |
| | error-correcting connection cannot be |
| | made. |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+--------+---------------------------------------|
| 0 - 2 | 000 | Modem disconnects. |
| | 001 | |
| | 011 | Modem attempts direct connection. |
| | 100 | |
| | 101 » | Modem attempts normal connection. |
| | 111 | |
| | | Modem attempts MNP connection. |
| | | |
| | | Modem attempts MNP connection. If it |
| | | fails, modem attempts direct |
| | | connection. |
| | | |
| | | Modem attempts MNP connection. If it |
| | | fails, modem attempts normal |
| | | connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLASH DIAL MODIFIER TIME |
|------------------------------------------------------------|
| Format | AT [cmds] S29=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT S29=26 <CR> |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | 10 ms |
|--------------+---------------------------------------------|
| Description: | Time the modem will go on-hook upon |
| | receiving the ! dial modifier in dial |
| | string. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Gn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT G1 &K3<CR> |
|--------------+---------------------------------------------|
| Description: | Selects modem port flow control. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \G0 | Flow control disabled. |
|--------------+---------------------------------------------|
| \G1 | Flow control enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL CHARACTER - XOFF |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S33=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS33=34 <CR> |
|--------------+---------------------------------------------|
| Default: | 19 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used to represent XOFF. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL CHARACTER - XON |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S32=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS32=86 <CR> |
|--------------+---------------------------------------------|
| Default: | 17 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used to represent XON. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HANDSHAKE OPTIONS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S48=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT S48=7 <CR> |
|--------------+---------------------------------------------|
| Default: | 7 |
|--------------+---------------------------------------------|
| Range: | 0, 7, or 128 |
|--------------+---------------------------------------------|
| Description: | Controls the V.42 handshake sequence. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| S48=0 | V.42 negotiation disabled. |
|--------------+---------------------------------------------|
| S48=7 | V.42 negotiation enabled. |
|--------------+---------------------------------------------|
| S48=128 | V.42 disabled; fallback according to S36. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LEASED LINE TRANSMISSION LEVEL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S99=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT S99=8 <CR> |
|--------------+---------------------------------------------|
| Default: | 10 |
|--------------+---------------------------------------------|
| Range: | 0 - 15 |
|--------------+---------------------------------------------|
| Unit: | -1 dBm |
|--------------+---------------------------------------------|
| Description: | Sets the signal level for transmission when |
| | in leased-line mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Mn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %M0 H1 DT555-1212<CR> |
|--------------+---------------------------------------------|
| Description: | Selects line type. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %M0 | Switched line. |
|--------------+---------------------------------------------|
| %M1 | Leased line. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAXIMUM BLOCK SIZE FOR TRANSMISSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \An [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \A3 &MB28800<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 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 for MNP enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP10 COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -Kn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %C1 -K1 -Q0 <CR> |
|--------------+---------------------------------------------|
| Description: | Selects MNP10 data compression. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| -K0 | MNP10 disabled. |
|--------------+---------------------------------------------|
| -K1 | MNP10 enabled. |
|--------------+---------------------------------------------|
| -K2 | MNP10 enabled on originate mode only. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PROTOCOL/SPEED |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Fn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT F0 A<CR> |
|--------------+---------------------------------------------|
| Description: | Selects the current protocol and speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| F0 | Auto-select fastest common protocol. |
|--------------+---------------------------------------------|
| F1 | V.21/Bell 103A 300bps. |
|--------------+---------------------------------------------|
| F3 | V.23 1200/75bps. |
|--------------+---------------------------------------------|
| F4 | V.22/Bell 212A 1200bps. |
|--------------+---------------------------------------------|
| F5 | V.22bis. |
|--------------+---------------------------------------------|
| F6 | V.32bis/V.32 4800bps. |
|--------------+---------------------------------------------|
| F7 | V.32bis 7200bps. |
|--------------+---------------------------------------------|
| F8 | V.32 9600bps |
|--------------+---------------------------------------------|
| F9 | V.32bis 12Kbps |
|--------------+---------------------------------------------|
| F10 | V.32bis 14.4Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PROTOCOL/SPEED |
|------------------------------------------------------------|
| Format | AT [cmds] S37=n [cmds] |
|------------------+-----------------------------------------|
| Example: | AT S37=0 <CR> |
|------------------+-----------------------------------------|
| Default: | 0 |
|------------------+-----------------------------------------|
| Range: | 0 - 15 |
|------------------+-----------------------------------------|
| Unit: | Bit-mapped |
|------------------+-----------------------------------------|
| Description: | Selects the current protocol and speed. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+----------+--------------------------------------|
| 3 - 0 | » 0000 | Auto-select fastest common protocol. |
| | 0001 | |
| | 0010 | V.21/Bell 103A 300bps. |
| | 0011 | |
| | 0100 | V.21/Bell 103A 300bps. |
| | 0101 | |
| | 0110 | V.21/Bell 103A 300bps. |
| | 0111 | |
| | 1000 | Not used. |
| | 1001 | |
| | 1010 | V.22. |
| | 1011 | |
| | 1100 | V.22bis. |
| | | |
| | | V.23 1200/75bps. |
| | | |
| | | V.32bis/V.32 4800bps. |
| | | |
| | | V.32 9600bps. |
| | | |
| | | V.32bis 12Kbps. |
| | | |
| | | V.32bis 14.4Kbps. |
| | | |
| | | V.32bis 7200bps. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SLEEP TIMER |
|------------------------------------------------------------|
| Format | AT [cmds] S24=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT S24=40 <CR> |
|--------------+---------------------------------------------|
| Default: | 1 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | 10 ms |
|--------------+---------------------------------------------|
| Description: | Maximum duration of DTE and DCE inactivity |
| | allowed prior to initiating low-power sleep |
| | mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Format | AT [cmds] S16=n [cmds] |
|---------------+--------------------------------------------|
| Example: | AT S16=113<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 | Modem not in remote digital loopback. |
| | | |
| | 1 | Remote digital loopback in progress. |
|---------+-------+------------------------------------------|
| 4 | 0 | Remote digital loopback not requested. |
| | | |
| | 1 | Remote digital loopback requested. |
|---------+-------+------------------------------------------|
| 5 | 0 | Remote digital loopback w/ self-test not |
| | | in progress. |
| | 1 | |
| | | Remote digital loopback w/ self-test in |
| | | progress. |
|---------+-------+------------------------------------------|
| 6 | 0 | Local analog loopback w/ self-test not |
| | | in progress. |
| | 1 | |
| | | Local analog loopback w/ self-test in |
| | | progress. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODE - PTT |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %TT [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %TT &W<CR> |
|--------------+---------------------------------------------|
| Description: | Send PTT test signals for European line |
| | test. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.23 SPLIT BAUD MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Wn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \W1 <CR> |
|--------------+---------------------------------------------|
| Description: | Controls V.23 split baud mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \W0 | V.23 split baud mode disabled. |
|--------------+---------------------------------------------|
| \W2 | V.23 split baud mode enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| WRITE TO LAST STATUS REGISTER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT S=6 <CR> |
|--------------+---------------------------------------------|
| Description: | Set value of last accessed S-register. |