Card Type	Modem(synchronous/asynchronous)
Chip Set	Unidentified
Maximum Data Rate	14.4Kbps
Maximum Fax Rate	14.4Kbps
Data Bus	External
Fax Class	Class I & II
Data Modulation Protocol	Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis
Fax Modulation Protocol	ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression	MNP5, V.42, V.42bis

CONNECTIONS
Function	Label		Function		Label
Line in		CN1		DC power		CN4
Line out		CN2		Power switch		SW1
RS-232/422		CN3

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
TST	Red	On	Normal operation
TST	Red	Blinking	Error detected and corrected
HS	Red	On	Modem is operating at 4800bps or faster
HS	Red	Off	Modem is operating at slower than 4800bps
AA	Red	On	Auto-answer enabled
AA	Red	Off	Auto-answer disabled
AA	Red	Blinking	Phone is ringing
CD	Red	On	Carrier signal detected
CD	Red	Off	Carrier signal not detected
OH	Red	On	Modem is off-hook
OH	Red	Off	Modem is on-hook
RD	Red	On	Modem is receiving data
RD	Red	Off	Modem is not receiving data
SD	Red	On	Modem is transmitting data
SD	Red	Off	Modem is not transmitting data
TR	Red	On	DTR signal is high
TR	Red	Off	DTR signal is low
MR	Red	On	Power is on
MR	Red	Off	Power is off

ACCEPT RELIABLE MODE
Type:	Immediate
Format:	AT [cmds] \Un
Description:	Accepts remote modem’s request for reliable link

AUTO CONNECT
Type:	Configuration
Format:	AT [cmds] %Pn [cmds]
Description:	Modem automatically dials number stored by &Z0 on power up
Command	Function
%P0	Auto connect disabled
%P1	Auto connect enabled

AUTO-RETRAIN
Type:	Configuration
Format:	AT %En
Description:	Selects auto-retrain mode.
Command	Function
%E0	Auto-retrain disabled.
í %E1	Auto-retrain enabled.

AUTO-RELIABLE TIME BUFFER CONFIGURATION
Type:		Configuration
Format:		AT [cmds] \Cn [cmds]
Description:		Controls the handling of incoming data during auto-reliable time period.
Command	Function
\CO	Data is discarded
í \C1	Data is buffered
\C2	Data is discarded, sets to normal mode

AUTO-RELIABLE FALLBACK CHARACTER
Type:	Configuration
Format:	AT [cmds] %An [cmds]
Default:	Unidentified
Range:	0-127
Unit:	ASCII
Description:	Sets the character used as the auto-reliable fallback character

BIT-MAPPED REGISTER S14
Format		AT [cmds] S14=n [cmds]
Default:		154
Range:		0 - 190
Unit:		Bit-mapped
Description:		Controls command echo, result codes, dialing mode, and answer/originate mode
Bit	Value	Function
0	0	Not used
1	0 í 1	Command echo off Command echo on
2	í 0 1	Result codes enabled Result codes disabled
3	0 í 1	Numeric result codes Verbose result codes
4	í 1 1	Dumb mode disabled Dumb mode enabled
5	í 0 1	Tone dialing selected Pulse dialing selected
6	0	Not used
7	0 í 1	Answer mode selected Originate mode selected

BIT-MAPPED REGISTER S21
Format		AT [cmds] S21=n [cmds]
Default:		Unidentified
Range:		0 - 255
Unit:		Bit-mapped
Description:		Selects originate only, switched/leased line, CTS signal, low DTR action, DCD signal, DSR signal, and long space disconnect
Bit	Value	Function
0	í 0 1	Originate only disabled Originate only enabled
1	0 1	Switched line Leased line
2	0 1	CTS follows RTS CTS forced high
4, 3	00 01 í 10 11	DTR signal ignored 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 í 1	DCD forced high DCD normal
6	í 0 1	DSR forced high DSR normal
7	í 0 1	Long Space Disconnect function disabled Long Space Disconnect function enabled

BIT-MAPPED REGISTER S22
Format		AT [cmds] S22=n [cmds]
Default:		118
Range:		0 - 255
Unit:		Bit-mapped.
Description:		Controls volume and speaker settings, result codes, and make/break pulse ratio
Bit	Value	Function
1, 0	00 01 í 10 11	Not used Low volume setting Medium volume setting Highest volume setting
3, 2	00 í 01 10 11	Speaker disabled Speaker enabled until carrier signal detected Speaker enabled Speaker off during dialing
6, 5 ,4	000 001 010 011 100 101 110 í 111	Busy and dialtone detection disabled, result codes 0-4 enabled Not used Not used Not used Busy and dialtone detection disabled, result codes 0-5, 10 enabled Busy tone detection disabled, dialtone detection enabled, result codes 0-6, 10 enabled Busy tone detection enabled, dialtone detection disabled, result codes 0-5, 7, 10 enabled Busy and dialtone detection enabled, all result codes enabled
7	í 0 1	39/61ms at 10pps (North America) 33/67ms at 10pps (Europe)

BIT-MAPPED REGISTER S23
Format		AT [cmds] S23=n [cmds]
Default:		5
Range:		0-255
Unit:		Bit-mapped.
Description:		Controls DTE rate and parity, and sets guard tone
Bit	Value	Function
3, 2, 1, 0	0000 0001 0010 0011 0100 í 0101 0110 0111 1000 1001 1010	Sets serial port speed to 300bps Not used Sets serial port speed to 1200bps Sets serial port speed to 2400bps Sets serial port speed to 4800bps Sets serial port speed to 9600bps Sets serial port speed to 14.4Kbps Sets serial port speed to 19.2Kbps Sets serial port speed to 38.4Kbps Sets serial port speed to 57.6Kbps Sets serial port speed to 115.2Kbps
5,4	í 00 01 10 11	Parity even Space parity Parity odd Mark or no parity
7, 6	00 01 10	550Hz guard tone enabled 1800Hz guard tone enabled Not used

BIT-MAPPED REGISTER S27
Format		AT [cmds] S27=n [cmds]
Default:		Unidentified
Range:		0-251
Unit:		Bit-mapped
Description:		Selects sync/async mode, clock source and speed
Bit	Value	Function
1, 0	00 01 í 10 11	Asynchronous operation Synchronous connect mode Synchronous operation Synchronous on high DTR
3, 2	00 01 10 11	Internal DTE transmit clock source External DTE transmit clock source Slave DTE transmit clock source Not used
7, 6, 5, 4	0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111	Connect at 300bps Connect at 1200bps Connect at 2400bps Not used Connect at 4800bps Connect at 9600bps Not used Not used Not used Not used Not used Not used Connect at 7200bps Connect at 1200 bps Connect at 14.4Kbps Not used

BIT-MAPPED REGISTER S28
Format:			AT [cmds] S28=n [cmds]
Default:			16
Range:			147
Description:			Auto connect, callback, Bell/ITU-T protocol
Bit	Value			Function
0	í 0 1			Power on auto connect disabled Power on auto connect enabled
2, 1		í 00 01 10 11			Callback disabled Callback enabled Password check enabled Not used
3		0			Not used
7, 6, 5, 4		0000 í 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111			ITU-T protocol Bell protocol Autoscan V.23 only Bell 103 only V.22/Bell 212A only V.22bis only V.32 4800bps only V.32 9600bps only V.32bis only Not used Not used Not used Not used Not used Not used

BREAK TYPE
Type:		Configuration
Format:		AT [cmds] \Kn [cmds]
Description:		Configures action of break signal.
Command	Break from DTE while in reliable/normal mode		Break from DTE while in direct mode	Modem receives break from DTE while in command mode	Break from remote modem while in normal mode
\K0	Do not send break to remote modem.		Send break to remote modem immediately, then enter command mode.	Buffers cleared and break sent to remote modem.	Buffers cleared and break sent to DTE.
\K1	Buffers cleared and break sent to remote modem.		Send break to remote modem immediately.	Buffers cleared and break sent to remote modem.	Buffers cleared and break sent to DTE.
\K2	Do not send break to remote modem.		Send break to remote modem immediately, then enter command mode.	Send break to remote modem immediately.	Send break to DTE immediately.
\K3	Send break to remote modem immediately.		Send break to remote modem immediately.	Send break to remote modem immediately.	Send break to DTE immediately.
\K4	Do not send break to remote modem.		Send break to remote modem immediately, then enter command mode.	Send break to remote modem with transmitted data.	Break sent with received data to the DTE.
í \K5	Send break with transmitted data.		Send break to remote modem immediately.	Send break to remote modem with transmitted data.	Break sent with received data to the DTE.

CLEAR DOWN
Type:	Configuration
Format:	AT [cmds] %Dn [cmds]
Description:	Sends clear down signal when terminating a connection
Command		Function
%D0		Clear down disabled
í %D1		Clear down enabled

COMPRESSION
Type:	Configuration
Format:	AT %Cn
Description:	Selects data compression
Command	Function
%C0	V.42bis/MNP5 data compression disabled
í %C1	V.42bis/MNP5 data compression enabled

CONNECT MODE
Type:	Configuration
Format:	AT [cmds] \Nn [cmds]
Description:	Sets connect mode.
Command	Function
\N0	Normal mode enabled.
\N1	Direct mode enabled.
\N2	MNP mode only enabled.
\N3	MNP or normal mode enabled.
\N4	V.42 mode only enabled.
\N5	V.42 or MNP enabled.
í \N6	V.42, MNP and normal modes enabled.

CONVERT TO RELIABLE MODE
Type:	Configuration
Format:	AT [cmds] \Y [cmds]
Description:	Switch to reliable link from normal link

ECHO DATA
Type:	Configuration
Format:	AT [cmds] \En [cmds]
\Example:	AT \E0 <CR>
Description:	Enables modem to echo received data
Command	Function
í \E0	Data echo disabled
\E1	Data echo enabled

EXTENDED RESULT CODES
Type:	Configuration
Format:	AT [cmds] \Vn [cmds]
Description:	Enables transmission of result codes.
Command	Function
\V0	Disable sending extended result codes and report DCE speed
í \V1	Send extended result codes and report DCE speed
\V2	Disable sending extended result codes and report DTE speed
\V3	Send extended result codes and report DTE speed

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] \Gn [cmds]
Description:	Selects DCE flow control
Command	Function
í \G0	DCE flow control disabled
\G1	DCE flow control enabled

FLOW CONTROL TYPE
Type:	Configuration
Format:	AT [cmds] \Qn [cmds]
Description:	Sets type of flow control used by modem
Command	Function
\Q0	Flow control disabled
\Q1	Bidirectional XON/XOFF flow control enabled
Í \Q2	CTS flow control by DCE enabled
í \Q3	Bidirectional CTS/RTS flow control enabled
\Q4	XON/XOFF flow control by DCE enabled

INACTIVITY TIMER
Type:	Configuration
Format:	AT [cmds] \Tn [cmds]
Default:	0
Range:	0-90
Unit:	1 minute
Description:	Sets the length of time that the modem does not receive information before it disconnects

LOCK SERIAL PORT
Type:	Configuration
Format:	AT [cmds] \Jn [cmds]
Description:	Sets operation of serial port speed.
Command	Function
í \J0	Serial speed locked.
\J1	Serial speed follows connect speed.

MAXIMUM BLOCK SIZE FOR TRANSMISSION
Type:	Configuration
Format:	AT [cmds] \An [cmds]
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.
í \A3	Maximum MNP block size is 256 characters.

ON-LINE IN RELIABLE MODE
Type:	Configuration
Format:	AT [cmds] \O
Description:	Request reliable mode connection

PASSWORD/CALLBACK
Type:	Configuration
Format:	AT [cmds] %Sn [cmds]
Description:	Modem checks password, disconnects and calls stored number
Command	Function
%S1	Request password
%S2	Request password, request stored number location, disconnect, dial stored number

PASSWORD SET
Type:	Configuration
Format:	AT [cmds] \P=n [cmds]
Unit:	Up to 7 ASCII characters
Description:	Stores password. \P=? displays stored password.

SWITCH TO NORMAL MODE
Type:	Immediate
Format:	AT [cmds] \Z [cmds]
Description:	Empty buffers, switch from reliable to normal mode

TEST STATUS
Format:		AT [cmds] S16=n [cmds]
Default:		Read-only
Range:		0 - 255
Unit:		Bit-mapped
Description:		Contains status of loopback tests.
Bit	Value	Function
0	0 í 1	Local analog loopback test not in progress. Local analog loopback test in progress.
1	0 í 1	Clear down signal disabled Clear down signal enabled
2	0 1	Local digital loopback test not in progress. Local digital loopback test in progress.
3	0	Not used
5, 4	00 01 10 11	Disable sending extended result codes and report DCE speed Send extended result codes and report DCE speed Disable sending extended result codes and report DTE speed Disable sending extended result codes and report DCE speed

TRANSMIT LEVEL
Type:	Configuration
Format:	AT [cmds] %Ln [cmds]
Default:	12
Range:	0-15
Unit:	-1 dBm
Description:	Selects transmit level

XON/XOFF PASS-THROUGH
Type:	Configuration
Format:	AT [cmds] \Xn [cmds]
Description:	Selects whether XON/XOFF signals are sent to remote modem
Command	Function
í \X0	XON/XOFF signals trapped by local modem
\X1	XON/XOFF passed through local modem