CONNECTIONS
Purpose	Location	Purpose	Location
Line out	CN1	RS-232/422	CN4
Line in	CN2	Power switch	SW3
DC power	CN3

CTS SIGNAL
Setting	SW2/1
» CTS normal	Off
CTS forced high	On

DCD SIGNAL
Setting	SW2/2
» DCD normal	Off
DCD forced high	On

DSR SIGNAL
Setting	SW2/3
» DSR normal	Off
DSR forced high	On

AT
Setting	SW2/4
» AT command set enabled	Off
At command set disabled	On

LEASED LINE WIRE TYPE
Setting	SW2/5
» Two wire	Off
Four wire	On

RESET
Setting	SW2/6
Asynchronous	On
Synchronous	Off
Note: Set to on before powering modem.

DTR SIGNAL
Setting	SW2/7
» DTE sends DTR signal	Off
Modem sends DTR signal	On

SIGNAL LEVEL
Setting	J5
Signal ground normal	Open
Set signal ground equal to chassis ground	Closed

RECEIVE CLOCK
Setting	J6
» Receive clock on pin 17 disabled	Open
Receive clock on pin 17 enabled	Closed

TRANSMIT CLOCK
Setting	J7
» Transmit clock on pin 15 disabled	Open
Transmit clock on pin 15 enabled	Closed

FACTORY CONFIGURED SETTINGS
JUMPER	SETTING
J1	Open
J2	Open
J3	Open
J4	Open
SW2/8	N/A
SW1	Not used (may not exist on all boards)

DIAGNOSTIC LED(S)
LED	Color	Status	Mode	Condition
HS	Green	On	N/A	Modem is operating at 7200bps or faster
HS	Red	On	N/A	Modem is operating at 1200bps or 2400bps
HS	Green/Red	Blinking	N/A	E-Mail messages stored
HS	N/A	Off	N/A	Modem is operating at slower than 1200bps
AA	Red	On	Off-line	Auto-answer enabled
AA	Red	Off	Off-line	Auto-answer disabled
AA	N/A	Blinking	Off-line	Phone is ringing
AA	Green	On	On-line	Modem is using TCM modulation
AA	Green	Blinking	On-line	Modem is training TCM modulation
AA	Red	On	On-line	Modem is using QAM or FSK modulation
AA	Red	Blinking	On-line	Modem is training QAM or FSK modulation
AA	Green/Red	Blinking	On-line	Remote modem has initiated a retrain
AA	Green/Off	Blinking	On-line	Local modem has initiated a retrain
CD	Red	On	N/A	Carrier signal detected
CD	Red	Off	N/A	Carrier signal not detected
OH	Red	On	N/A	Modem is off-hook
OH	Red	Off	N/A	Modem is on-hook
RD	Red	On	N/A	Modem is receiving data
RD	Red	Off	N/A	Modem is not receiving data
SD	Red	On	N/A	Modem is transmitting data
SD	Red	Off	N/A	Modem is not transmitting data
TR	Red	On	N/A	DTR signal is high
TR	Red	Off	N/A	DTR signal is low
MR/EC	Red	On	Off-line	Power on
MR/EC	Red	Blinking	Off-line	Off-line diagnostic test has failed
MR/EC	N/A	Off	Off-line	Power off
MR/EC	Red	Blinking	On-line	On-line diagnostic test in progress OR Modem is in ROAD mode
MR/EC	Green	On	On-line	Error correction activated
MR/EC	Green	Blinking	On-line	Error correction activated and modem is in ROAD mode
MR/EC	N/A	Off	On-line	Error correction disabled

APPEND CARRIAGE RETURN
Type:	Configuration
Format:	AT [cmds] %Gn [cmds]
Example:	AT %G1 &W<CR>
Description:	Appends carriage return to result codes.
Command	Function
%G0	Append carriage return disabled.
» %G1	Append carriage return enabled.

BELL 202
Format		AT [cmds] S70=n [cmds]
Example:		ATS70=4<CR>
Default:		Unidentified
Range:		0 -4
Unit:		Bit-mapped
Description:		Disables bell 202 mode.
Bit	Value		Function
0	0		Not used.
1	0		Not used.
2	0 1		Bell 202 enabled Bell 202 disabled

CHARACTER LENGTH
Type:	Configuration
Format:	AT [cmds] \Fn [cmds]
Example:	AT \F3<CR>
Description:	Sets length of character.
Command	Function
» \F0	8 data bits, 1 stop bit, null parity.
\F1	8 data bits, 1 stop bit, odd parity.
\F2	8 data bits, 1 stop bit, even parity.
\F3	8 data bits, 2 stop bits, null parity.
\F4	7 data bits, 1 stop bit, null parity.
\F5	7 data bits, 1 stop bit, odd parity.
\F6	7 data bits, 1 stop bit, even parity.
\F7	7 data bits, 2 stop bits, null parity.
\F8	7 data bits, 2 stop bits, odd parity.
\F9	7 data bits, 2 stop bits, even parity.
\F10	Set character length to register S13.

COMMUNICATION PROTOCOL
Type:	Configuration
Format:	AT [cmds] Bn [cmds]
Example:	AT B1 %B5<CR>
Description:	Selects the communication protocol for data calls.
Command	Function
» B1	Bell protocols.
B0	ITU-T protocols.

COMPRESSION
Type:	Configuration
Format:	AT %Cn
Example:	AT %C0 *Y1<CR>
Description:	Selects data compression.
Command	Function
» %C0	Data compression disabled.
%C1	Data compression enabled.

CONNECT MODE
Type:	Configuration
Format:	AT [cmds] \Nn [cmds]
Example:	AT \N1 DT555-1212<CR>
Description:	Sets connect mode.
Command	Function
\N1	Direct mode.
\N0	Normal mode.
\N2	Reliable mode.
\N3	Auto-reliable mode.

CONNECTION SPEED RESTRICT
Type:	Configuration
Format:	AT [cmds] *Cn [cmds]
Example:	AT *C1 DT555-1212<CR>
Description:	Limits speed of connection to last detected DTE speed or lower.
Command	Function
*C0	Disabled.
*C1	Enabled.

DISPLAY CURRENT COMMAND STATUS
Type:	Immediate
Format:	AT [cmds] \S [cmds]
Example:	AT &Z2=9W1-303-555-1212 \S<CR>
Description:	Displays current setting of modem commands.

DTR DIALING
Type:	Configuration
Format:	AT [cmds] %Dn [cmds]
Example:	AT %D1 DT555-1212<CR>
Description:	Turns DTR dialing on and off.
Command	Function
» %D0	DTR dialing disabled.
%D1	DTR dialing enabled.

ERROR CORRECTION MODE
Type:	Configuration
Format:	AT [cmds] *Yn [cmds]
Example:	AT *Y1 %C1<CR>
Description:	Selects active error-correction protocols.
Command	Function
*Y0	Auto-detect mode.
» *Y1	MNP and V.42bis enabled.
*Y2	V.42bis only enabled.
*Y3	MNP only enabled.

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] %Fn [cmds]
Example:	AT %F1 &K3<CR>
Description:	Selects flow control.
Command	Function
» %F1	Flow control enabled for DTE and DCE
%F0	Flow control disabled.
%F2	Flow control enabled.

FLOW CONTROL PASSTHROUGH
Type:	Configuration
Format:	AT [cmds] *Pn [cmds]
Example:	AT *P0 &W<CR>
Description:	Allows modem to act on, then transmit XON/XOFF characters.
Command	Function
» *PO	Passthrough enabled.
*P1	Passthrough disabled.

FLOW CONTROL TYPE
Type:	Configuration
Format:	AT [cmds] \Qn [cmds]
Example:	AT \Q0 A<CR>
Description:	Sets type of flow control used by modem.
Command	Function
» \Q0,\Q1,\Q2	XON/XOFF flow control enabled.
\Q3	CTS/RTS flow control enabled.

INACTIVITY TIMER
Type:	Register
Format:	AT [cmds] \Tn [cmds]
Example:	AT\T20<CR>
Default:	0
Range:	0-255
Unit:	1 second
Description:	Sets the length of time that the modem does not receive information before it disconnects.

INITIALIZATION STRING
Type:	Configuration
Format:	AT [cmds] *Vn=<cmds>
Example:	AT *V1=ATS11=45 M0<CR>
Description:	Stores string to be executed on power up or reset.

INITIALIZATION STRING DISPLAY
Type:	Immediate
Format:	AT [cmds] *V?
Example:	AT *V?<CR>
Description:	Displays stored strings to be executed on power up or reset.

LEASED LINE BACK UP STATION ID
Type:	Configuration
Format:	AT [cmds] #En [cmds]
Example:	AT *D1 *L2 #E1<CR>
Description:	Allows modem to send and receive leased line back up ID.
Command	Function
#E0	Disabled.
» #E1	Enabled.

LEASED LINE DIAL BACKUP
Type:	Configuration
Format:	AT [cmds] *Dn [cmds]
Example:	AT *D1 *L2 #E1<CR>
Description:	Automatically establishes switched line connection if leased line fails
Command	Function
» *D0	Disabled.
*D1	Enabled.

LEASED LINE RECEIVE ATTENUATION
Type:	Configuration
Format:	AT [cmds] %Ln [cmds]
Example:	AT %L1 &W<CR>
Description:	Sets the attenuation for reception when in leased-line mode.
Command	Function
» %L2	0 to -26 dB
%L0	0 to -43 dB
%L1	0 to -33 dB
%L3	0 to -16 dB

LEASED LINE RECOVERY DELAY
Type:	Configuration
Format:	AT [cmds] *Ln [cmds]
Example:	AT *D1 *L2 #E1<CR>
Description:	After leased line failure, modem attempts to reconnect after specified delay.
Command
» *L0	Disabled.
*L1	5 minute delay.
*L2	15 minute delay.
*L3	30 minute delay.
*L4	60 minute delay.

LEASED LINE STATION ID RECEIVE
Type:	Configuration
Format:	AT [cmds] #Qxxxx [cmds]
Example:	AT #Q0234567891 &W<CR>
Default:	None
Range:	ASCII
Unit:	Up to ten characters
Description:	Sets leased line backup receive station ID.

LEASED LINE STATION ID TRANSMIT
Type:	Configuration
Format:	AT [cmds] #Tn [cmds]
Example:	AT #T0234567891 &W<CR>
Default:	None
Range:	ASCII
Unit:	Up to ten characters
Description:	Sets leased line backup transmit station ID.

LEASED LINE TRANSMISSION ATTENUATION
Type:	Configuration
Format:	AT [cmds] %Tn [cmds]
Example:	AT %T12<CR>
Default:	15
Range:	0 - 15
Unit:	1 dB
Description:	Sets the attenuation for transmission when in leased-line mode.

LINE SPEED
Type:	Configuration
Format:	AT [cmds] %Bn [cmds]
Example:	AT B1 %B5<CR>
Description:	Sets line speed
Command		Mode	Function
%B0		Bell	9600bps V.32 Trellis encoding
%B0		ITU-T	9600bps V.32 Trellis encoding
%B1		Bell	9600bps V.32
%B1		ITU-T	9600bps V.32
%B2		Bell	2400 bps v.22bis
%B2		ITU-T	2400 bps v.22bis
%B3		Bell	1200bps V.22
%B3		ITU-T	1200bps V.22
%B4		Bell	300bps V.21
%B4		ITU-T	300bps V.21
%B5		Bell	9600/2400/1200/300bps
%B5		ITU-T	9600/2400/1200/300bps
%B6		Bell	9600/2400/1200
%B6		ITU-T	9600/2400/1200
%B7		Bell	9600/2400
%B7		ITU-T	9600/2400
%B8		Bell	1200bps V.23 HDX
%B8		ITU-T	1200bps V.23 HDX
%B9		ITU-T	Transmit 1200bps, receive 75bps local serial port speed follows connect speed
%B10		ITU-T	Transmit 75bps, receive 1200bps local serial port speed follows connect speed
%B11		ITU-T	Transmit 1200bps, receive 75bps local serial port speed independent of connect speed
%B12		ITU-T	Transmit 75bps, receive 12000bps local serial port speed independent of connect speed

NEGOTIATE LINE SPEED
Type:	Configuration
Format:	AT [cmds] %Qn [cmds]
Example:	AT %Q1 &W<CR>
Description:	Allows modem to negotiate down to Bell 202/V.23 while in answer mode
Command	Function
%Q0	Bell 202/V.23 mode disabled.
%Q1	Substitute 300bps modes with Bell 202/V.23 when answering.

NRZI
Type:	Configuration
Format:	AT [cmds] &Nn [cmds]
Example:	AT &N1 O<CR>
Description:	Configures DTE non return to zero interface
Command
&N0	NRZ command and connect modes.
&N1	NRZI command and connect modes.
&N2	NRZ command, NRZI connect
&N3	NRZI command, NRZ connect

PULSE MODE INTERDIGIT DELAY
Type:	Configuration
Format:	AT [cmds] %Pn [cmds]
Example:	AT %N1 %P1 P<CR>
Description:	Sets interval between digits in pulse mode.
Command	Function
» %P0	750ms
%P1	650ms
%P2	850ms

PULSES PER DIGIT
Type:	Configuration
Format:	AT [cmds] %Nn [cmds]
Example:	AT %N1 %P1 P<CR>
Description:	Sets the number of pulses per digit dialed while in pulse mode.
Command	Function
» %N0	Digit value is number of pulses (0 digit generates 10 pulses).
%N1	Digit value minus ten pulses generated (0 digit generates 10 pulses).
%N2	Digit value plus one pulses generated (0 digit generates 1 pulse).

REDIAL
Type:	Configuration
Format:	AT [cmds] *Rn
Example:	AT *R0<CR>
Default:	0
Range:	0-9
Unit:	1 redial
Description:	Automatically redials next number n times.

REDIAL ABORT
Type:	Immediate
Format:	AT [cmds] \H [cmds]
Example:	AT \H<CR>
Description:	Stops redial.

REDIAL LAST NUMBER
Type:	Immediate
Format:	AT [cmds] *R
Example:	AT *R<CR>
Description:	Redials last number dialed.

RESET MODEM TO STORED PROFILE
Type:	Immediate
Format:	AT [cmds] %Sn [cmds]
Example:	AT%S6<CR>
Description:	Resets modem to stored profile.

RESULT CODE FORMAT
Type:	Configuration
Format:	AT [cmds] \Vn [cmds]
Example:	AT \V0 Q0<CR>
Description:	Selects word or numeric format for information-text and result codes.
Command	Function
\V1	Numeric format enabled.
\V0	Verbose (word) format enabled.

ROAD INITIATE
Type:	Immediate
Format:	AT [cmds] *U [cmds]
Example:	AT *B0 *U O<CR>
Description:	Commands the modem to transmit stored Remote Access Options and Downloading key. The modem must have already connected.

ROAD KEY CUSTOMIZE
Type:	Configuration
Format:	AT [cmds] *A^x^x^x^x [cmds]
Example:	AT *A^M^H^I^I &W<CR>
Description:	Sets the key for Remote Options Access and Downloading (^ indicates ctrl key depressed). The default is ^R^O^A^D.

ROAD KEY ENABLE
Type:	Configuration
Format:	AT [cmds] *Bn [cmds]
Example:	AT *B0 *U O<CR>
Description:	Enables Remote Options Access and Downloading.
Command	Function
» *B0	R.O.A.D. disabled.
*B1	R.O.A.D. enabled.

S-REGISTER DISPLAY
Type:	Immediate
Format:	AT [cmds] %R [cmds]
Example:	AT %R &W<CR>
Description:	Display contents of all S-registers.

SOFTWARE SETUP
Type:	Configuration
Format:	AT [cmds] *Sn [cmds]
Example:	AT *S1<CR>
Description:	Configures modem to communicate with specific communications software.
Command	Function
» *S0	Normal mode, Crosstalk compatible.
*S1	Smartcom II Ver. 3.0 compatible.
*S3	Smartcom III Ver. 1.0 compatible.
*S4	AS400 HDLC dialer EIA handler.

TEST/BUSY OUT
Type:	Configuration
Format:	AT [cmds] *Tn [cmds]
Example:	AT *T1 &W<CR>
Description:	Configures pin 25 for testing or busy out.
Command	Function
» *T0	Disabled.
*T1	Enable ALB w/self test when pin 25 is true.
*T2	Enable busy out when pin 25 is true.

TIME AND DATE DISPLAY
Type:	Immediate
Format:	AT [cmds] \D? [cmds]
Example:	AT \D0=12:30 \D1=03/26 \D?<CR>
Description:	Display time and date.

TIME AND DATE SET
Type:	Configuration
Format:	AT [cmds] \Dn=xxxx [cmds]
Example:	AT \D0=12:30 \D1=03/26 \D?<CR>
Description:	Sets time and date.
Command	Function
\D0	Set time.
\D1	Set date.

TURBO MODE
Format		AT [cmds] S94;5=n [cmds]
Example:		ATS94;5=1<CR>
Default:		None
Range:		0-16
Unit:		Bit-mapped
Description:		Allows 12Kbps connection with compatible remote modem.
Bit	Value		Function
5	0 1		Enabled. Disabled.

V.25
Type:	Configuration
Format:	AT [cmds] V.25
Example:	AT V.25<CR>
Description:	Enables V.25bis mode.

V.25bis COMMAND MODE SPEED
Type:	Configuration
Format:	AT [cmds] *Wn [cmds]
Example:	AT *W0 &W<CR>
Description:	V.25bis mode only. DTE sets off line speed for sync command processing.
Command	Function
» *W0	Last auto baud speed, 9600bps if none.
*W1	1200bps.
*W2	2400bps.
*W3	4800bps.
*W4	9600bps.
*W5	19.2Kbps.
*W6	38.4Kbps.
*W7	Use pin 24 external clock control.

V.32bis FALLBACK
Format		AT [cmds] S94=n [cmds]
Example:		ATS94=40<CR>
Default:		Unidentified
Range:		0 - 16
Unit:		Bit-mapped
Description:		Controls limited V.32bis 12,000bps .operation
Bit	Value		Function
0	0		Not used.
1	0		Not used.
2	0		Not used.
3	0		Not used.
4	0		Not used.
5	0 1		12,000bps limited V.32bis capability disabled. 12,000bps limited V.32bis capability enabled.

AT COMMAND SET
Type:	Immediate
Format:	ATC
Example:	ATC<CR>
Description:	Switch to AT command set.

CALL REQUESTED NUMBER AND TRANSMIT STATION ID
Type:	Configuration
Format:	CRI <#>;xxxx
Example:	CRI 487-3289; 1234567890 <CR>
Description:	Modem phone number, then transmits station ID after connection

CLEAR STORED NUMBER
Type:	Configuration
Format:	CLAnn
Example:	CRI 07 <CR>
Description:	Deletes number stored at memory location n.

DISPLAY STORED NUMBERS
Type:	Immediate
Format:	RLNn
Example:	RLN2<CR>
Description:	Display insecure number in memory location n. If no number is given, all insecure numbers will be displayed.

REDIAL
Type:	Immediate
Format:	DLN
Example:	DLN<CR>
Description:	Redial last number dialed by CRN command.

STATION ID SET
Type:	Configuration
Format:	PRInnn;<#>;xxxx
Example:	PRI 011; 487-3289; 1234567890 <CR>
Description:	Records station ID

STATION ID LIST
Type:	Result code
Format:	LSIxxxx
Example:	LSI 2345678901
Description:	Displays station ID.

STORED NUMBERS LIST
Type:	Result code
Format:	LSNxxxx
Example:	LSN 443-3388
Description:	Displays stored numbers. xxxx may specify a memory location, phone number, or status. If no code was specified with RLN, all stored numbers are displayed.