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# TELEBIT CORPORATION
TRAILBLAZER PLUS PC
Card Type Modem (synchronous/asynchronous)
Processor Motorola 68000
Processor Speed Unidentified
Chipset Unidentified
Maximum Data Rate 18Kbps
Data Bus 8-bit ISA
Data Modulation Bell 103A/212A
ITU-T V.22, V.22bis
Telebit PEP
Error Correction/Compression MNP3
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| Line in | CN1 | Line out | CN2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-------------------------------------+-------+--------------|
| í Factory configured - do not alter | JP1 | Unidentified |
|-------------------------------------+-------+--------------|
| í Factory configured - do not alter | E25 | Unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT CONFIGURATION |
|------------------------------------------------------------|
| Address | IRQ | E22 | E23 | E24 |
|----------+------+----------------+------------+------------|
| 3F8h | IRQ4 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| (COM1:) | | closed | closed | closed |
|----------+------+----------------+------------+------------|
| 2F8h | IRQ3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 |
| (COM2:) | | closed | closed | closed |
|----------+------+----------------+------------+------------|
| 3E8h | IRQ4 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
| (COM3:) | | closed | closed | closed |
|----------+------+----------------+------------+------------|
| 2E8h | IRQ3 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| (COM4:) | | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SUPPORTED STANDARD COMMANDS |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| +++, ‘comma’, A/ |
|------------------------------------------------------------|
| A, C, E, F, H, M, O, V, X, Z |
|------------------------------------------------------------|
| &F, &T |
|------------------------------------------------------------|
| S-Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12 |
|------------------------------------------------------------|
| Note: See MHI documentation for complete information. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| ANSWER/ORIGINATE MODE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] <>n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem answers calls in |
| | answer or originate mode. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| í S100=0 | Modem answers calls in answer mode and |
| | originates calls in originate mode. |
|---------------+--------------------------------------------|
| S100=1 | Modem answers calls in originate mode and |
| | originates calls in answer mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AT PREFIX |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S63=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the AT prefix is required |
| | in command mode. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| S63=0 | AT prefix not required. All characters |
| | entered in command mode will be assumed to |
| | be commands. |
|---------------+--------------------------------------------|
| í S63=1 | AT prefix required for command mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-CONNECT |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S101=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will attempt to |
| | connect automatically when no carrier is |
| | detected even when no call has been made or |
| | received. |
|------------------------------------------------------------|
| Command | Function |
|----------------+-------------------------------------------|
| í S101=0 | Modem does not attempt to auto-connect. |
|----------------+-------------------------------------------|
| S101=1 | Modem attempts to connect in answer mode |
| | every 20 seconds. |
|----------------+-------------------------------------------|
| S101=2 | Modem attempts to connect in originate |
| | mode every 20 seconds. |
|----------------+-------------------------------------------|
| S101=3 | Modem attempts to connect in answer mode |
| | immediately after carrier is lost, then |
| | pauses 20 seconds before retrying. |
|----------------+-------------------------------------------|
| S101=4 | Modem attempts to connect in originate |
| | mode immediately after carrier is lost, |
| | then pauses 20 seconds before retrying. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BITS PER CHANNEL - TRANSMIT |
|------------------------------------------------------------|
| Type: | Read-only |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S71? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the number of bits assigned to |
| | each of the 511 transmit channels of a PEP |
| | mode connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BITS PER CHANNEL - RECEIVE |
|------------------------------------------------------------|
| Type: | Read-only |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S73? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the number of bits assigned to |
| | each of the 511 receive channels of a PEP |
| | mode connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK LENGTH |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S62=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 3 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | 50 mS |
|--------------+---------------------------------------------|
| Description: | Sets the length of transmitted break |
| | signals. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK TYPE |
|------------------------------------------------------------|
| Type: | Register |
|--------------------+---------------------------------------|
| Format: | AT [cmds] S54=n [cmds] |
|--------------------+---------------------------------------|
| Description: | Configures the modem’s reaction to a |
| | break signal. |
|------------------------------------------------------------|
| Command | Break from | Break from DTE | Break received |
| | DTE in | in PEP mode | from remote |
| | non-PEP mode | | modem |
|-----------+--------------+----------------+----------------|
| í S54=0 | Online | Online command | Buffers |
| | command mode | mode enabled, | cleared, break |
| | enabled, | break not sent | sent to DTE. |
| | break not | to remote | |
| | sent to | modem. | |
| | remote | | |
| | modem. | | |
|-----------+--------------+----------------+----------------|
| S54=1 | Break sent | Break sent to | Buffers |
| | to remote | remote modem | cleared, break |
| | modem. | and buffers | sent to DTE. |
| | | cleared. | |
|-----------+--------------+----------------+----------------|
| S54=2 | Break sent | Break sent to | Buffers |
| | to remote | remote modem | cleared, break |
| | modem. | immediately. | sent to DTE. |
|-----------+--------------+----------------+----------------|
| S54=3 | Break sent | Modem sends | Buffers |
| | to remote | break in | cleared, break |
| | modem. | sequence when | sent to DTE. |
| | | in data mode, | |
| | | and | |
| | | immediately | |
| | | when in | |
| | | command mode. | |
|-----------+--------------+----------------+----------------|
| S54=4 | Break signal | Break signal | Buffers |
| | ignored. | ignored. | cleared, break |
| | | | sent to DTE. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMAND SET DISABLE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &B |
|--------------+---------------------------------------------|
| Description: | Disables the command set for local |
| | commands. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMPRESSION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S110=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will use data |
| | compression when connected in PEP mode. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| S110=0 | Compression disabled. |
|---------------+--------------------------------------------|
| S110=1 | Compression enabled if remote modem has |
| | compression enabled. |
|---------------+--------------------------------------------|
| í S110=255 | Compression enabled if remote modem has |
| | S110 set to 1. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT MODE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S95=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the type of non-PEP MNP mode |
| | connection that the modem will attempt to |
| | make. |
|------------------------------------------------------------|
| Command | Function |
|------------------+-----------------------------------------|
| í S95=0 | Normal mode connection only. |
|------------------+-----------------------------------------|
| S95=1 | MNP reliable mode connection only. |
|------------------+-----------------------------------------|
| S95=2 | MNP auto-reliable mode connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CTS SIGNAL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S67=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the behaviour of the CTS signal. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| í S67=0 | CTS is forced high. |
|---------------+--------------------------------------------|
| S67=1 | CTS forced high 200 mS after RTS and CD go |
| | high. If RTS or CD is low, CTS is forced |
| | low. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CURRENT RECEIVE RATE |
|------------------------------------------------------------|
| Type: | Read-only |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S72? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the number of bits per second that |
| | the data line is carrying from the remote |
| | modem at that moment. |
|--------------+---------------------------------------------|
| Note: | This command is only valid in PEP mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CURRENT TRANSMISSION RATE |
|------------------------------------------------------------|
| Type: | Read-only |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S70? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the number of bits per second that |
| | the data line is carrying to the remote |
| | modem at that moment. |
|--------------+---------------------------------------------|
| Note: | This command is only valid in PEP mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA FORMAT |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S60=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the format for the modem-to-DTE serial |
| | interface. |
|------------------------------------------------------------|
| Command | Function |
|----------------+-------------------------------------------|
| í S60=0 | Use 8 data bits, no parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=1 | Use 8 data bits, odd parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=2 | Use 8 data bits, even parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=3 | Use 8 data bits, no parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=4 | Use 8 data bits, odd parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=5 | Use 8 data bits, even parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=6 | Use 7 data bits, no parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=7 | Use 7 data bits, odd parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=8 | Use 7 data bits, even parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=9 | Use 7 data bits, no parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=10 | Use 7 data bits, odd parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=11 | Use 7 data bits, even parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=12 | Use 6 data bits, no parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=13 | Use 6 data bits, odd parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=14 | Use 6 data bits, even parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=15 | Use 6 data bits, no parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=16 | Use 6 data bits, odd parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=17 | Use 6 data bits, even parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=18 | Use 5 data bits, no parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=19 | Use 5 data bits, odd parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=20 | Use 5 data bits, even parity, and 1 stop |
| | bit. |
|----------------+-------------------------------------------|
| S60=21 | Use 5 data bits, no parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=22 | Use 5 data bits, odd parity, and 2 stop |
| | bits. |
|----------------+-------------------------------------------|
| S60=23 | Use 5 data bits, even parity, and 2 stop |
| | bits. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DCD AND DSR SIGNALS |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S53=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the behaviour of the DSR and CD |
| | signals. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| S53=0 | DSR forced high when modem is idle, CD |
| | forced high. |
|---------------+--------------------------------------------|
| í S53=1 | DSR forced high when modem is idle, CD is |
| | normal. |
|---------------+--------------------------------------------|
| S53=2 | DSR follows CD, CD normal. |
|---------------+--------------------------------------------|
| S53=3 | DSR and CD normal. |
|---------------+--------------------------------------------|
| S53=4 | DSR forced high when idle and forced low |
| | on disconnect, CD normal. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] D<#> [cmds] |
|--------------+---------------------------------------------|
| Description: | Dials the telephone number indicated |
| | according to any modifiers included in the |
| | string. |
|--------------+---------------------------------------------|
| Note: | Any combination of modifiers can be used to |
| | produce the desired dial functions in |
| | sequence. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| DP | Pulse dialing enabled. |
|--------------+---------------------------------------------|
| DR | Answer mode enabled; originate mode |
| | disabled following handshake initiation. |
|--------------+---------------------------------------------|
| DNn | Dial stored telephone number n. |
|--------------+---------------------------------------------|
| DT | Tone dialing enabled. |
|--------------+---------------------------------------------|
| DW | Dialing resumed following dial tone |
| | detection. |
|--------------+---------------------------------------------|
| D, | Dialing paused for amount of time specified |
| | in S8 register. |
|--------------+---------------------------------------------|
| D! | Flash function initiated. Modem commanded |
| | to go off-hook for specified time before |
| | returning on-hook. |
|--------------+---------------------------------------------|
| D; | Modem returned to idle state after dialing. |
| | The semicolon can only be placed at the end |
| | of the dial command. |
|--------------+---------------------------------------------|
| D\x\ | Dials the stored telephone number with |
| | description x. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL INTERRUPT |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S64=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will abort a |
| | dial, answer, or connect sequence if |
| | characters are received from the DTE. |
|------------------------------------------------------------|
| Command | Function |
|-----------------------+------------------------------------|
| í S64=0 | Sequence aborted. |
|-----------------------+------------------------------------|
| S64=1 | Sequence not aborted. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY CONFIGURATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the configuration stored in |
| | non-volatile RAM. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DSR DELAY ON DISCONNECT |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S47=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 4 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | 50 mS |
|--------------+---------------------------------------------|
| Description: | Sets the time that DSR is forced low after |
| | disconnect. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DTR DIALING |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S104=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will auto-dial |
| | the first stored number on DTR signal |
| | changes. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| í S104=0 | DTR dialing disabled. |
|---------------+--------------------------------------------|
| S104=1 | Modem auto-dials first stored number on |
| | low-to-high DTR change. |
|---------------+--------------------------------------------|
| S104=2 | Automatically dial first stored number |
| | whenever no call is connected and DTR |
| | signal is high. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DTR SIGNAL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S52=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the modem’s response to the DTR |
| | signal. |
|------------------------------------------------------------|
| Command | Function |
|------------------+-----------------------------------------|
| S52=0 | Modem assumes DTR is forced high. |
|------------------+-----------------------------------------|
| í S52=1 | Modem goes idle on low DTR. |
|------------------+-----------------------------------------|
| S52=2 | Modem is reset on low DTR. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ECHO SUPPRESSOR COMPENSATION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S121=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will compensate |
| | for echo suppressors. |
|--------------+---------------------------------------------|
| Note: | Enabling the echo suppressor compensator |
| | reduces throughput by about five percent. |
|------------------------------------------------------------|
| Command | Function |
|-----------------+------------------------------------------|
| í S121=0 | Echo suppressor compensator disabled. |
|-----------------+------------------------------------------|
| S121=1 | Echo suppressor compensator enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EIGHTH BIT FILTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S48=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the high bit of a character |
| | is cleared before detection of XON, XOFF |
| | and escape characters. |
|------------------------------------------------------------|
| Command | Function |
|-----------------------+------------------------------------|
| í S48=0 | Eighth bit is cleared. |
|-----------------------+------------------------------------|
| S48=1 | Eighth bit is not cleared. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ESCAPE SEQUENCE RESPONSE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S55=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Configures the modem’s reaction to an |
| | escape sequence. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| í S55=0 | Modem returns to command mode after set |
| | guard time has passed and escape |
| | characters sent to remote modem. |
|---------------+--------------------------------------------|
| S55=1 | Buffers are cleared and escape characters |
| | sent to remote modem. |
|---------------+--------------------------------------------|
| S55=2 | Escape characters sent to remote modem |
| | immediately. |
|---------------+--------------------------------------------|
| S55=3 | Escape characters sent with transmitted |
| | data. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL CHARACTER - XOFF |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S57=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 19 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used to represent the |
| | XOFF character. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL CHARACTER - XON |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S56=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 17 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used to represent the |
| | XON character. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL TYPE - DCE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S68=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets type of flow control used by the |
| | modem. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| S68=0 | Flow control disabled. |
|--------------+---------------------------------------------|
| S68=2 | Unidirectional RTS flow control enabled. |
|--------------+---------------------------------------------|
| í S68=3 | Bidirectional XON/XOFF flow control |
| | enabled. |
|--------------+---------------------------------------------|
| S68=4 | Bidirectional XON/XOFF and RTS/CTS enabled. |
|--------------+---------------------------------------------|
| S68=5 | Bidirectional ENQ/ACK flow control enabled. |
|--------------+---------------------------------------------|
| S68=6 | Bidirectional XON/XOFF and ENQ/ACK flow |
| | control enabled. |
|--------------+---------------------------------------------|
| S68=255 | Flow control specified in S58 is used. If |
| | S58 is set to 1, then DCE flow control is |
| | disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL TYPE - DTE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S58=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets type of flow control used by the DTE. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| S58=0 | Flow control disabled. |
|--------------+---------------------------------------------|
| S58=1 | Bidirectional RTS/CTS flow control enabled. |
|--------------+---------------------------------------------|
| S58=2 | Unidirectional RTS flow control enabled. |
|--------------+---------------------------------------------|
| í S58=3 | Bidirectional XON/XOFF flow control |
| | enabled. |
|--------------+---------------------------------------------|
| S58=4 | Bidirectional XON/XOFF and RTS/CTS enabled. |
|--------------+---------------------------------------------|
| S58=5 | Bidirectional ENQ/ACK flow control enabled. |
|--------------+---------------------------------------------|
| S58=6 | Bidirectional XON/XOFF and ENQ/ACK flow |
| | control enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FREQUENCY OFFSET |
|------------------------------------------------------------|
| Type: | Read-only |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S77? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the frequency offset for the |
| | current connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GUARD TONE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S91=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Commands the modem to transmit a guard tone |
| | in V.22/V.22bis mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í S91=0 | Guard tone disabled. |
|--------------+---------------------------------------------|
| S91=1 | 1800Hz guard tone enabled. |
|--------------+---------------------------------------------|
| S91=2 | 550Hz guard tone enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| KERMIT MARK CHARACTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S112=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 1 |
|--------------+---------------------------------------------|
| Range: | 0 - 127 |
|--------------+---------------------------------------------|
| Unit: | 1 ASCII character |
|--------------+---------------------------------------------|
| Description: | Sets the character that will be used as the |
| | beginning of packet marker when in Kermit |
| | protocol mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE NOISE |
|------------------------------------------------------------|
| Type: | Read-only |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S76? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the line noise level for each of |
| | the 511 channels of a PEP mode connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE QUALITY |
|------------------------------------------------------------|
| Type: | Read-only |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S78? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the line quality of the current |
| | connection. |
|--------------+---------------------------------------------|
| Note: | This command is not valid in PEP mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL SERIAL PORT SPEED |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S51=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the speed at which the modem |
| | communicates with the host computer. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| S51=0 | Set speed to 300bps. |
|---------------+--------------------------------------------|
| S51=1 | Set speed to 1200bps. |
|---------------+--------------------------------------------|
| S51=2 | Set speed to 2400bps. |
|---------------+--------------------------------------------|
| S51=3 | Set speed to 4800bps. |
|---------------+--------------------------------------------|
| í S51=4 | Set speed to 9600bps. |
|---------------+--------------------------------------------|
| S51=5 | Set speed to 19.2Kbps. |
|---------------+--------------------------------------------|
| S51=255 | Auto-detect speed from received "A" or "a" |
| | character. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCK SERIAL PORT |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S66=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets operation of serial port speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í S66=0 | Serial speed follows connect speed. |
|--------------+---------------------------------------------|
| S66=1 | Serial speed locked. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PACKETS ACCEPTED |
|------------------------------------------------------------|
| Type: | Read-only |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S75? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the number of packets that the |
| | modem has accepted without errors. |
|--------------+---------------------------------------------|
| Note: | This command is only valid in PEP mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PACKETS RETRANSMITTED |
|------------------------------------------------------------|
| Type: | Read-only |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S74? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the number of packets that the |
| | modem has requested a retransmit for due to |
| | errors. |
|--------------+---------------------------------------------|
| Note: | This command is only valid in PEP mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PEP NEGOTIATION TONES |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S92=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects when in the protocol negotiation |
| | sequence the PEP tones are sent. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| í S92=0 | Send PEP tones at beginning of negotiation |
| | sequence. |
|---------------+--------------------------------------------|
| S92=1 | Send PEP tones at end of negotiation |
| | sequence. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PRODUCT ID NUMBER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S49=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects what the modem will report as its |
| | product ID number. |
|------------------------------------------------------------|
| Command | Function |
|-----------------+------------------------------------------|
| í S49=0 | Modem reports normal ID number. |
|-----------------+------------------------------------------|
| S49=1 | Modem reports 123 as its ID number. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PROMPT CHARACTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S59=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | 1 ASCII character |
|--------------+---------------------------------------------|
| Description: | Sets what character will be used as a |
| | prompt when in command mode. If S59 is set |
| | to 0 then no prompt will be given. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PROTOCOL SELECTION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S90=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects which protocol will be used when |
| | making 1200bps connections. |
|------------------------------------------------------------|
| Command | Function |
|----------------------------+-------------------------------|
| í S90=0 | Use Bell 212A. |
|----------------------------+-------------------------------|
| S90=1 | Use V.22. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PROTOCOL/SPEED |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S50=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the protocol used for |
| | communications. |
|------------------------------------------------------------|
| Command | Function |
|-----------------+------------------------------------------|
| í S50=0 | Auto-detect fastest common protocol. |
|-----------------+------------------------------------------|
| S50=1 | Use Bell 103. |
|-----------------+------------------------------------------|
| S50=2 | Use Bell 212A or V.22. |
|-----------------+------------------------------------------|
| S50=3 | Use V.22bis. |
|-----------------+------------------------------------------|
| S50=255 | Use PEP. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REMOTE CONFIGURATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %cmds |
|--------------+---------------------------------------------|
| Description: | Attempts to execute the command string |
| | following the percent sign on the remote |
| | modem. If remote configuration is disabled, |
| | the modem will give no response; otherwise, |
| | it will respond OK. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REMOTE CONFIGURATION ENABLE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S45=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will respond to |
| | remote configuration commands. |
|------------------------------------------------------------|
| Command | Function |
|--------------------+---------------------------------------|
| í S45=0 | Remote configuration disabled. |
|--------------------+---------------------------------------|
| S45=255 | Remote configuration enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports modem model and revision. |
|--------------+---------------------------------------------|
| I1 | Reports error code for the last executed |
| | test. |
|--------------+---------------------------------------------|
| I2 | Reports the current connect mode. |
|--------------+---------------------------------------------|
| I3 | Reports firmware revision. |
|--------------+---------------------------------------------|
| I4 | Reports current connection statistics. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects when result codes will be reported. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| í Q0 | All result codes will be reported. |
|---------------+--------------------------------------------|
| Q1 | Only remote result codes will be reported. |
|---------------+--------------------------------------------|
| Q2 | Only local result codes will be reported. |
|---------------+--------------------------------------------|
| Q3 | No result codes will be reported. |
|---------------+--------------------------------------------|
| Q4 | All remote result codes will be reported; |
| | local result codes will only be reported |
| | if an ATD or ATA command was entered. |
|---------------+--------------------------------------------|
| Q5 | Local result codes will only be reported |
| | if an ATD or ATA command was entered. |
|---------------+--------------------------------------------|
| Q6 | All remote result codes will be reported; |
| | local result codes will only be reported |
| | if the local modem Is originating. |
|---------------+--------------------------------------------|
| Q7 | Local result codes will only be reported |
| | if the local modem Is originating. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RETRAIN |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Rn [cmds] |
|--------------+---------------------------------------------|
| Description: | Initiates a retrain or a re-negotiation of |
| | features. |
|------------------------------------------------------------|
| Command | Function |
|-------------------+----------------------------------------|
| &R0 | Force retrain. |
|-------------------+----------------------------------------|
| &R1 | Force re-negotiation of features. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SOFT RESET |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &En [cmds] |
|--------------+---------------------------------------------|
| Description: | Restores modem profiles previously saved in |
| | non-volatile RAM using the &W command. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| STORE TELEPHONE NUMBER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Nn=<#>\xxxx\ [cmds] |
|--------------+---------------------------------------------|
| Description: | Stores the indicated telephone number at |
| | memory location n. The string xxxx between |
| | the backslashes sets an optional name for |
| | that stored number. |
|--------------+---------------------------------------------|
| Note: | If additional commands are to be given |
| | after this command, the backslashes must be |
| | used even if there is no string between |
| | them. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSFER PROTOCOL SELECTION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S111=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects which transfer protocol the should |
| | use. |
|------------------------------------------------------------|
| Command | Function |
|----------------+-------------------------------------------|
| S111=0 | No protocol will be used. |
|----------------+-------------------------------------------|
| S111=10 | Kermit with no parity enabled. |
|----------------+-------------------------------------------|
| S111=11 | Kermit with odd parity enabled. |
|----------------+-------------------------------------------|
| S111=12 | Kermit with even parity enabled. |
|----------------+-------------------------------------------|
| S111=13 | Kermit with MARK parity enabled. |
|----------------+-------------------------------------------|
| S111=14 | Kermit with SPACE parity enabled. |
|----------------+-------------------------------------------|
| S111=20 | XModem and YModem enabled. |
|----------------+-------------------------------------------|
| S111=30 | UUCP G protocol enabled. |
|----------------+-------------------------------------------|
| í S111=255 | Use protocol specified by remote modem. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE MODE |
|------------------------------------------------------------|
| Type: | Immdeiate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] G [cmds] |
|--------------+---------------------------------------------|
| Description: | Commands the modem to break the data |
| | connection and go on-hook so that the line |
| | may be used for voice mode. If the |
| | telephone’s handset is picked up, the call |
| | will not be disconnected. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| XOFF REISSUE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S65=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will reissue XOFF |
| | characters if the DTE continues to transmit |
| | after an XOFF. |
|------------------------------------------------------------|
| Command | Function |
|----------------+-------------------------------------------|
| í S65=0 | Modem will not reissue XOFF characters. |
|----------------+-------------------------------------------|
| S65=1 | Modem will reissue XOFF characters. |
+------------------------------------------------------------+