Card Type	Fax, Modem (asynchronous)
Chip Set	Unidentified
Maximum Data Rate	14.4Kbps
Maximum Fax Rate	14.4Kbps
Data Bus	8-bit ISA
Fax Class	Class I & II
Data Modulation Protocol	Bell 103/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis
Fax Modulation Protocol	ITU-T V.17, V.21, V.27ter, V.29
Error Correction/Compression	MNP5, V.42, V.42bis

CONNECTIONS
Function	Label		Function		Label
Line out		CN1		Line in		CN2

SERIAL PORT ADDRESS
Setting	JP1/A	JP1/B	JP1/C	JP1/D
COM1 (3F8h)	Closed	Open	Open	Open
COM2 (2F8h)	Open	Closed	Open	Open
COM3 (3E8h)	Open	Open	Closed	Open
COM4 (2E8h)	Open	Open	Open	Closed

INTERRUPT SELECTION
Setting	JP1/E	JP1/F	JP1/G	JP1/H
3	Closed	Open	Open	Open
4	Open	Closed	Open	Open
5	Open	Open	Closed	Open
7	Open	Open	Open	Closed

AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD
Type:	Configuration
Format:	AT [cmds] %En [cmds]
Description:	Controls auto-retrain mode and fallback/fall-forward
Command	Function
%E0	Auto-retrain disabled
í %E1	Auto-retrain enabled
%E2	Auto-fallback/fall-forward enabled

BIT-MAPPED REGISTER S14
Format:		AT [cmds] S14=n [cmds]
Default:		138
Range:		0-174
Unit:		Bit-mapped
Description:		Controls echo, result codes and display, dial mode, and answer/originate mode.
Bit	Value	Function
0	í 0	Not used
1	0 í 1	Command echo disabled Command echo enabled
2	í 0 1	Result codes enabled Result codes disabled
3	0 í 1	Display result codes in numeric format Display result codes in verbose format
4	í 0	Not used
5	í 0 1	Tone dial enabled Pulse dial enabled
6	í 0	Not used
7	0 í 1	Answer mode enabled Originate mode enabled

BIT-MAPPED REGISTER S21
Format		AT [cmds] S21=n [cmds]
Default:		52
Range:		0-253
Unit:		Bit-mapped
Description:		Selects jack type, CTS/DCD/DSR signals, low DTR action, and the long space disconnect function.
Bit	Value	Function
0	í 0 1	Selects RJ-11, RJ-41S, or RJ45S jack Selects RJ-12 or RJ-13 jack
1	0	Not used
2	0 í 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:		117
Range:		0-127
Unit:		Bit-mapped
Description:		Controls speaker volume and controls, and limits results codes.
Bit	Value	Function
1, 0	00 í 01 10 11	Off volume Low level volume Medium level volume High level volume
3, 2	00 í 01 10 11	Speaker off Speaker off on carrier Speaker always on Speaker on during handshake
6 - 4	000 100 101 110 í 111	Basic result codes only enabled Basic and connection speed result codes enabled 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]
Default:		Unidentified
Range:		0-189
Unit:		Bit-mapped
Description:		Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone.
Bit	Value	Function
0	0 í 1	Remote digital loopback denied Remote digital loopback allowed
3 - 1	000 001 010 011 100 101 110	Sets serial port speed to 0-300bps Sets serial port speed to 600bps 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 19200bps
5, 4	00 01 10 11	Parity even Not used Parity odd No Parity
7, 6	í 00 01 10	Guard tone disabled Guard tone disabled Guard tone 1800Hz enabled

BIT-MAPPED REGISTER S27
Format		AT [cmds] S27=n [cmds]
Default:		64
Range:		0-116
Unit:		Bit-mapped
Description:		Selects line type, clock source, and ITU-T/Bell modes.
Bit	Value	Function
3, 1, 0	000	Not used
2	í 0 1	Switched line Leased line
5, 4	í 00 01 10	Local modem generates transmit clock source Local DTE generates transmit clock source Remote DCE/DTE generates transmit clock source
6	0 í 1	ITU/T mode Bell mode

BIT-MAPPED REGISTER S28
Format		AT [cmds] S28=n [cmds]
Default:		0
Range:		0-31
Unit:		Bit-mapped
Description:		Controls V.23 split speed, transmit/receive speed, half duplex, and pulse dialing.
Bit	Value	Function
0	í 0 1	V.23 split speed operation disabled V.23 split speed operation enabled
1	í 0 1	75bps transmit, 1200bps receive enabled 1200bps transmit, 75bps receive enabled
2	í 0 1	V.23 half-duplex disabled V.23 half-duplex enabled
4, 3	í 00 01 10 11	39ms make/61ms break at 10pps 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]
Default:		2
Range:		0-10
Description:		Select automode and extended result code format.
Bit	Value		Function
0	í 0		Not used
1	0 í 1		Auto-mode detection disabled In originate mode, handshake begins at line speed designated by the S37 register. Modem can shift to a slower speed if necessary. In answer mode, handshake attempted with the following protocols in order - V.32bis, V.32, V.22bis, V.22 or Bell 212, V.21, and Bell 103
3, 2	í 00 01 10		Enables CONNECT result codes to report DTE speed Full reporting of CONNECT result codes Enables CONNECT result codes to report DCE speed

BIT-MAPPED REGISTER S40
Format		AT [cmds] S40=n [cmds]
Default:		105
Range:		0-239
Unit:		Bit-mapped
Description:		Controls power level and break handling, selects MNP extended services, link negotiation, and block size.
Bit	Value	Function
0	0 í 1	MNP disabled MNP enabled
1	í 0 1	Power level adjustment enabled Power level adjustment disabled
2	í 0 1	Link will be negotiated at highest possible speed Link will be negotiated at 1200bps
5, 4, 3	000 001 010 011 100 í 101	\K0 \K1 \K2 \K3 \K4 \K5
7, 6	00 í 01 10 11	MNP block size is 64 characters 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]
Default:		7
Range:		0-31
Unit:		Bit-mapped
Description:		Selects compression, auto-retrain, flow control, and MNP mode.
Bit	Value	Function
1 - 0	00 01 10 í 11	Data compression disabled MNP5 enabled V.42bis enabled MNP5 and V.42bis enabled
2	0 í 1	Auto-retrain disabled Auto-retrain enabled
3	í 0 1	Flow control disabled Flow control enabled
4	í 0 1	Stream mode for MNP Block mode for MNP

BREAK SEND
Type:	Configuration
Format:	AT [cmds] \Bn [cmds]
Default:	3
Range:	1-9
Unit:	.1 second
Description:	Sends break to modem

BREAK TYPE
Type:		Configuration
Format:		AT [cmds] \Kn [cmds]
Description:		Configures action of break signal
Command	Break from DTE while in Normal or MNP mode		Break from DTE while in Direct mode	Break received from remote modem
\K0	On-line command mode enabled, send no break to remote modem		On-line command mode enabled, send no break to remote modem	Buffers cleared, break sent to DTE
\K1	Break sent to remote modem and buffers cleared		On-line command mode enabled, send no break to remote modem	Buffers cleared, break sent to DTE
\K2	On-line command mode enabled, send no break to remote modem		Send break to remote modem immediately	Break sent immediately to DTE
\K3	Send break to remote modem immediately		On-line command mode enabled, send no break to remote modem	Break sent immediately to DTE
\K4	On-line command mode enabled, send no break to remote modem		Send break to remote modem immediately	Break sent with received data to the DTE
î \K5	Send break with transmitted data		Send break to remote modem immediately	Break sent with received data to the DTE

COMPRESSION
Type:	Configuration
Format:	AT [cmds] %Cn [cmds]
Description:	Selects data compression
Command	Function
%C0	Data compression disabled
%C1	Not used
%C2	V.42bis enabled
í %C3	MNP5 and V.42bis enabled

CONNECT MODE
Type:	Configuration
Format:	AT [cmds] \Nn [cmds]
Description:	Controls the type of connection the modem will operate in
Command	Function
\N0	Normal mode enabled
í \N1	Direct mode enabled
\N2	Reliable mode enabled
\N3	Auto-reliable mode enabled
\N4	V.42 reliable mode enabled
\N5	MNP reliable mode enabled

DIAL
Type:	Immediate
Format:	AT [cmds] D<#> [cmds]
Description:	Dials telephone number according to any modifiers included in the string
Note:	Any combination of modifiers can be used to produce the desired dial functions in sequence.
Modifier	Function
L	Re-dial last number
í P	Pulse dialing enabled
S=n	Dial stored telephone number n
T	Tone dialing enabled
W	Dialing resumed following dial tone detection
,	Dialing paused for amount of time specified in S8 register
!	Flash function initiated
@	Wait for quiet answer enabled
;	Modem returned to command state after dialing
^	Calling tone disabled

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

FLOW CONTROL
Type:	Register
Format	AT [cmds] S39? [cmds]
Description:	Displays the current flow control
Value	Meaning
0	Flow control disabled
í 3	RTS/CTS flow control enabled
4	XON/XOFF flow control enabled
5	Transparent XON/XOFF flow control enabled

FLOW CONTROL CHARACTER - XOFF
Type:	Register
Format:	AT [cmds] S33=n [cmds]
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]
Default:	17
Range:	0-255
Unit:	ASCII
Description:	Sets the character used to represent XON

INACTIVITY TIMER
Type:	Configuration
Format:	AT [cmds] \Tn [cmds]
Default:	0
Range:	0-42
Unit:	1 minute
Description:	Sets the length of time that the modem does not receive information before it disconnects.

LINE SIGNAL LEVEL
Type:	Immediate
Format:	AT [cmds] %L [cmds]
Default:	Unidentified
Range:	9-43
Unit:	-dBm
Description:	Returns a value which indicates the received line signal level

LINE SIGNAL QUALITY
Type:	Immediate
Format:	AT [cmds] %Q [cmds]
Description:	Returns a value which indicates line signal quality
Value		Meaning
0 - 7		Auto-retrain disabled
8 - 255		Auto-retrain enabled

MAXIMUM BLOCK SIZE FOR TRANSMISSION
Type:	Configuration
Format:	AT [cmds] \An [cmds]
Description:	Sets the maximum transmittable block size
Command	Function
\A0	MNP block size is 64 characters
í \A1	MNP block size is 128 characters
\A2	MNP block size is 192 characters
\A3	MNP block size is 256 characters

MNP - STREAM/BLOCK MODE
Type:	Configuration
Format:	AT [cmds] \Ln [cmds]
Description:	Selects the transfer mode for MNP link
Command	Function
í \L0	Stream mode for MNP enabled
\L1	Block mode for MNP enabled

MNP - LINK NEGOTIATION
Type:	Configuration
Format:	AT [cmds] *Hn [cmds]
Description:	Sets the speed at which an MNP link negotiation will occur
Command	Function
í *H0	Link will be negotiated at highest possible speed
*H1	Link will be negotiated at 1200bps

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports product identification code
I1	Reports ROM checksum as OK or ERROR
I2	Tests and reports ROM checksum
I3	Reports firmware revision level
I4	Reports OEM-defined identifier string
I5	Reports country code
I6	Reports Modem data pump model

SLEEP TIMER
Type:	Register
Format	AT [cmds] S24=n [cmds]
Default:	0
Range:	0-255
Unit:	1 second
Description:	Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode.

SPLIT-SPEED CONTROL
Type:	Configuration
Format:	AT [cmds] \Wn [cmds]
Description:	Controls split-speed mode
Command	Function
í \W0	V.23 split-speed mode disabled
\W1	V.23 split-speed mode enabled

SPLIT-SPEED MODE
Type:	Configuration
Format:	AT [cmds] %Fn [cmds]
Description:	Controls split-speed direction
Command		Function
%F0		Not used
%F1		75bps transmit, 1200bps receive
í %F2		1200bps transmit, 75bps receive; when AT\W1 is set.

SWITCH TO NORMAL MODE
Type:	Immediate
Format:	AT [cmds] \Z [cmds]
Description:	Switches to normal mode from MNP mode

TEST MODES
Type:		Register
Format:		AT [cmds] S16=n [cmds]
Default:		0
Range:		0-125
Unit:		Bit-mapped
Description:		Controls loopback tests: analog, digital, remote digital, and self tests.
Bit	Value	Function
0	í 0 1	Local analog loopback not in progress Local analog loopback in progress
1	í 0	Not used
2	í 0 1	Local digital loopback not in progress Local digital loopback in progress
3	í 0 1	Modem not in remote digital loopback Remote digital loopback in progress
4	í 0 1	Remote digital loopback not requested Remote digital loopback requested
5	í 0 1	Remote digital loopback w/ error count not in progress Remote digital loopback w/ error count in progress
6	í 0 1	Local analog loopback w/ self-test not in progress Local analog loopback w/ self-test in progress

TRANSMISSION LEVEL - PSTN
Type	Register
Format	AT [cmds] S91=n [cmds]
Default	10
Range	0-15
Unit	-1 dBm
Description	Sets the signal level for transmission over switched phone lines