CONNECTIONS
Purpose	Location	Purpose	Location
LCD display	LCD	Line in	CN1
Left arrow button	BT1	Leased line out	CN2
1 button	BT2	Leased line out	CN3
2 button	BT3	Switched line out	CN4
3 button	BT4	DC power	CN5
Right arrow button	BT5	Diagnostic connector	CN6
ENTER button	BT6	RS-232/422	CN7

A/A1 - MI/MIC CONTROL
Control Type	JP5	JP6
» A/A1 control.	Pin 1 & 2 closed.	Pin 1 & 2 closed.
MI/MIC control.	Pin 2 & 3 closed.	Pin 2 & 3 closed.

DTE CONNECTOR - PIN 25
Function	JP7
Analog loopback (Input).	Pin 1 & 2 closed.
» Test Mode Indicator (Output).	Pin 2 & 3 closed.

FRAME/SIGNAL GROUND
Ground Type	JP1
Frame and signal ground connected.	Pin 1 & 2 closed.
» Frame and signal ground not connected.	Pin 2 & 3 closed.

FACTORY CONFIGURED SETTINGS - DO NOT ALTER
Jumper	Setting
JP8	Pin 2 & 3 closed.
JP9	Pin 2 & 3 closed.
JP10	Pin 2 & 3 closed.
JP11	Pin 2 & 3 closed.

POWER
Power Source	JP2	JP3	JP4
» AC power.	Pin 1 & 2 closed.	Pin 1 & 2 closed.	Pin 1 & 2 closed.
DC power.	Pin 2 & 3 closed.	Pin 2 & 3 closed.	Pin 2 & 3 closed.

ADMINISTRATIVE PASSWORD
Type:	Configuration
Format:	AT [cmds] /A
Example:	AT &Z=/ASECURITY<CR>
Description:	Set administrative password; password-protects use of certain Hayes commands.
Note	SECURITY is the modem’s default password.

AUTO-RETRAIN
Type:	Configuration
Format:	AT [cmds] %En [cmds]
Example:	AT %E1 <CR>
Description:	Selects auto-retrain mode.
Command	Function
%E0	Auto-retrain disabled.
» %E1	Auto-retrain enabled.

BUFFER MODE/SPEED CONVERSION
Type:	Configuration
Format:	AT [cmds] \Bn [cmds]
Example:	AT \B1 &W <CR>
Description:	Controls buffer mode/speed conversion
Command	Function
\B0	Speed conversion disabled.
» \B1	Speed conversion enabled.

CARRIER DETECT LEVEL
Type:	Register/Immediate
Format:	AT [cmds] S46=n [cmds]
Example:	AT S46=16 <CR>
Default:	32
Range:	0, 1, 2, 16, 17, 18, 32, 33, 34.
Unit:	Unidentified
Description:	Selects CD level for dial-up and leased line application.
Command		Dial line	Leased line
0		-26	-26
1		-26	-33
2		-26	-43
16		-33	-26
17		-33	-33
18		-33	-43
» 32		-43	-26
33		-43	-33
34		-43	-43

COMMUNICATION STANDARD
Type:	Configuration
Format:	AT [cmds] -Fn [cmds]
Example:	AT -F2 &W <CR>
Description:	Selects communication mode.
Command	Function
-F0	AUTO V.34
-F1	V.34
-F2	AUTO V.32
-F3	V.33
-F4	BELL208
-F5	V.3x/BELL208
-F6	V.29
-F7	V.27
-F8	V.26

CONNECTION SPEED LOWER LIMIT
Format	AT [cmds] S44=n [cmds]
Example:	AT S44=14 <CR>
Default:	14
Range:	0 - 15
Unit:	Bit-mapped
Description:	Selects minimum data rate.
Command	Function
0	Select 28.8Kbps speed.
1	Select 26.4Kbps speed.
2	Select 24Kbps speed.
3	Select 21.6Kbps speed.
4	Select 19.2Kbps speed.
5	Select 16.8Kbps speed.
6	Select 14.4Kbps speed.
7	Select 12Kbps speed.
8	Select 9600bps speed.
9	Select 7200bps speed.
10	Select 4800bps speed.
11	Select 2400bps speed.
12	Select 1200bps speed.
13	Select 600bps speed.
» 14	Select 0 - 300bps speed.
15	Select 1200/75bps speed.

CONNECTION SPEED UPPER LIMIT
Format	AT [cmds] S43=n [cmds]
Example:	AT S43=8 <CR>
Default:	8
Range:	0 - 15
Unit:	Bit-mapped
Description:	Selects maximum data rate.
Command	Function
0	Select 28.8Kbps speed.
1	Select 26.4Kbps speed.
2	Select 24Kbps speed.
3	Select 21.6Kbps speed.
4	Select 19.2Kbps speed.
5	Select 16.8Kbps speed.
6	Select 14.4Kbps speed.
7	Select 12Kbps speed.
» 8	Select 9600bps speed.
9	Select 7200bps speed.
10	Select 4800bps speed.
11	Select 2400bps speed.
12	Select 1200bps speed.
13	Select 600bps speed.
14	Select 0 - 300bps speed.
15	Select 1200/75bps speed.

DIAGNOSTIC PORT DATA RATE
Type:	Configuration
Format:	AT [cmds] -Pn [cmds]
Example:	AT -P0 &W <CR>
Description:	Selects diagnostic port speed.
Command	Function
» -P0	9600bps.
-P1	19.2Kbps.
-P2	38.4Kbps.
-P3	57.6Kbps.
-P4	115.2Kbps.

DIAL
Type:	Immediate
Format:	AT [cmds] D<#> [; cmds]
Example:	AT H1 DT 9W *70, 1(303) 555-1212<CR>
Description:	Dials telephone number according to any modifiers included in the string.
Modifier	Function
DL	Links a stored phone number to another number as an alternate.
DP	Pulse dialing enabled.
DS=c	Number in memory location c dialed.
DT	Tone dialing enabled.
DW	Dialing resumed following dial tone detection.
D:	Dialing resumed following dial tone detection.
D/R	Modem is configured for Dial Line Auto-Recovery.
D,	Dialing paused for amount of time specified in S8 register.
D<	Dialing paused for amount of time specified in S8 register.
D;	Modem returned to command mode after dialing.
D&	Flash function initiated. Modem commanded to go on-hook for specified time.
D!	Flash function initiated. Modem commanded to go on-hook for specified time.
D@	Modem waits for a ring-back signal followed by silence up to the time specified in S7 prior to executing the rest of the dial string.

DIALING MESSAGE
Type:	Configuration
Format:	AT [cmds] \Dn [cmds]
Example:	AT \D0 &W <CR>
Description:	Controls dialing message.
Command	Function
» \D0	"Dialing" message disabled.
\D1	"Dialing" message enabled.

DOWNLOAD CONTROLLER
Type:	Configuration
Format:	AT *C
Example:	AT *C<CR>
Description:	Download controller software.

DOWNLOAD CONTROLLER SOFTWARE AND DATA PUMP
Type:	Configuration
Format:	AT *M
Example:	AT *M<CR>
Description:	Download controller software and data pump software.

DOWNLOAD DATA PUMP
Type:	Configuration
Format:	AT *P
Example:	AT *P<CR>
Description:	Download data pump software.

DOWNLOAD FIRMWARE MODE
Type:	Immediate
Format:	AT **
Example:	AT **<CR>
Description:	Enters the mode to download the firmware programs.

DTE CONNECTOR ALTERNATE FUNCTION
Type:	Configuration
Format:	AT [cmds] -Nn [cmds]
Example:	AT -N1 &W <CR>
Description:	DTE connector switched from normal to diagnostic port function.

DTE SPEED
Type:	Register
Format:	AT [cmds] S61n [cmds]
Example:	AT S61=2 <CR>
Description:	Selects the current DTE speed.
Command	Function
0	Select 115.2Kbps speed.
1	Select 57.6Kbps speed.
» 2	Select 38.4Kbps speed.
3	Select 19.2Kbps speed.
4	Select 9600bps speed.
5	Select 7200bps speed.
6	Select 4800bps speed.
7	Select 2400bps speed.
8	Select 1800bps speed.
9	Select 1200bps speed.
10	Select 600bps speed.
11	Select 300bps speed.
14	Select 230.4Kbps speed.

INACTIVITY TIMER
Type:	Immediate
Format:	AT [cmds] \T=n [cmds]
Example:	AT \T=0 <CR>
Default:	0
Range:	0 - 90
Unit:	1 minutes
Description:	Sets the length of time that the modem does not receive information before it disconnects.

LEASED LINE LEVEL
Type:	Register
Format:	AT [cmds] S53=n [cmds]
Example:	AT S53=0 <CR>
Default:	0
Range:	0 - 15
Unit:	-dbm.
Description:	Selects leased line transmit level.

MANUAL RESPONSE PASSWORD
Type:	Configuration
Format:	AT [cmds] /P
Example:	AT &Z22=/PBLUE<CR> or AT &Z42=5551212/PGREEN<CR>
Description:	Sets password for Manual response password; with or without callback.

MAXIMUM BLOCK SIZE FOR TRANSMISSION
Type:	Configuration
Format:	AT [cmds] \An [cmds]
Example:	AT \A3 \B0 <CR>
Description:	Sets the maximum transmittable block size.
Command	Function
\A0	Maximum MNP block size is 64 characters.
\A1	Maximum MNP block size is 128 characters.
\A2	Maximum MNP block size is 192 characters.
» \A3	Maximum MNP block size is 256 characters.

MNP CLASS - LIMIT
Type:	Configuration
Format:	AT [cmds] \Cn [cmds]
Example:	AT \C5 &W <CR>
Description:	Selects MNP class.
Note:	This option is not in effect until modem goes off-line.
Command	Function
\C1	MNP class 1.
\C2	MNP class 1 & 2.
\C3	MNP class 1 - 3.
\C4	MNP class 1 - 4.
» \C5	MNP class 1- 5.

PRODUCT CODE
Type:	Configuration
Format:	AT [cmds] In [cmds]
Example:	AT I0 &W <CR>
Description:	Selects product code or checksum.
Command	Function
I0	Request product code.
I1	Request checksum for the ALX modem’s software.
I2	Request verification of software checksum.
I3	Request the following for each EPROM chip, part and revision number

RECEIVE/TRANSMIT SPACE DISCONNECT
Type:	Configuration
Format:	AT [cmds] Yn [cmds]
Example:	AT Y1 &W <CR>
Description:	Controls receive/transmit space disconnect.
Command	Function
Y0	Receive space connect and transmit space disconnect disabled.
» Y1	Receive space connect and transmit space disconnect enabled.
Y2	Transmit space disconnect enabled; receive space disconnect disabled.
Y3	Receive space disconnect enabled; transmit space disconnect disabled.

SPEED CONTROL
Type:	Configuration
Format:	AT [cmds] Fn [cmds]
Example:	AT F8 &W <CR>
Default:	Unidentified
Range:	0 - 16
Unit:	Unidentified
Description:	Controls data rate specified.
Command	Function
F0	0 - 300bps to 28.8kbps.
F1	300bps.
F2	600bps.
F3	1200/75bps.
F4	1200bps.
F5	2400bps.
F6	4800bps.
F7	7200bps.
F8	9600bps.
F9	12.0Kbps.
F10	14.4Kbps.
F11	16.8Kbps.
F12	19.2Kbps.
F13	21.6Kbps.
F14	24.0Kbps.
F15	26.4Kbps.
F16	28.8Kbps.

TRANSMIT LEVEL - DIAL
Type:	Configuration
Format:	AT [cmds] -Ln [cmds]
Example:	AT -L1 &W <CR>
Description:	Controls transmit level.
Command	Function
-L0	Permissive transmit level enabled.
» -L1	Programmable transmit level enabled.

USER PASSWORD
Type:	Configuration
Format:	AT [cmds] /S
Example:	AT &Z3=T5551212/SORANGE<CR>
Description:	Stores user password.

USER-DEFINED TEXT STRING
Type:	Configuration
Format:	AT [cmds] /U
Example:	AT &Z0=/UGORDO<CR>
Description:	Sends a response to remote terminal user after valid password is received.

V.25bis MODE
Type:	Configuration
Format:	AT [cmds] %Vn [cmds]
Example:	AT %V2 &W <CR>
Description:	Selects V.25bis mode.
Command	Function
%V0	Hayes mode disabled, V.25bis mode asynchronous enabled.
%V1	V.25bis mode, sync bit oriented (HDLC) enabled.
%V2	V.25bis mode, synchronous character oriented enabled.

V.32 MODE
Type:	Configuration
Format:	AT [cmds] -Cn [cmds]
Example:	AT -C1 &W<CR>
Description:	Selects either V.32 extended or V.32bis mode.
Command	Function
-C0	V.32 extended mode enabled.
» -C1	V.32bis mode enabled.

V.42 BREAK HANDLING
Type:	Configuration
Format:	AT [cmds] \Kn [cmds]
Example:	AT \K3 &W <CR>
Description:	Selects the type of break in V.42.
Command	Function
\K0	Normal break handling enabled.
\K1	Destructive/expedited break handling enabled.
\K2	Non-destructive/expedited break handling enabled.
» \K3	Non-Destructive/non-expedited break handling enabled.

V.42 DETECTION
Type:	Configuration
Format:	AT [cmds] \En [cmds]
Example:	AT \E1 &W <CR>
Description:	Controls V.42 detection.
Command	Function
\E0	V.42 detection disabled.
» \E1	V.42 detection enabled.

V.42 FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] \Qn [cmds]
Example:	AT \Q3 &W <CR>
Description:	Sets V.42 flow control.
Command	Function
\Q0	Flow control disabled.
\Q1	RTS/CTS flow control enabled.
\Q2	DC1/DC2 flow control enabled.
» \Q3	DC1/DC3 flow control enabled.

V.42 MODE
Type:	Configuration
Format:	AT [cmds] \Nn [cmds]
Example:	AT \N3 &W <CR>
Description:	Controls V.42 mode.
Command	Function
\N0	Error correction disabled.
\N1	Mandatory mode for error correction enabled.
\N2	V.42 error correction enabled.
» \N3	Automatic mode for error correction enabled.

V.42 PASS-THROUGH FLOW CONRTOL
Type:	Configuration
Format:	AT [cmds] \Xn [cmds]
Example:	AT \X7 &W <CR>
Description:	Controls both DTE and DCE pass-through flow control.
Command		DTE pass-through	DCE pass-through
» \X0		DTE and DCE pass-through flow disabled.	DTE and DCE pass-through flow disabled.
\X1		DTE and DCE pass-through flow enabled.	DTE and DCE pass-through flow disabled.
\X1, 0		DTE pass-through flow enabled.	DCE pass-through flow disabled.
\X0, 1		DTE pass-through flow disabled.	DCE pass-through flow enabled.

V.42 PROTOCOL
Type:	Configuration
Format:	AT [cmds] \Pn [cmds]
Example:	AT \P2 &W <CR>
Description:	Selects V.42 protocol.
Command	Function
\P0	LAPM protocol enabled.
\P1	MNP protocol enabled.
» \P2	LAPM/MNP protocol enabled.

V.42 RESULT CODES
Type:	Configuration
Format:	AT [cmds] \Vn [cmds]
Example:	AT \V1 %C1 <CR>
Description:	Selects V.42 result codes.
Command	Function
\V0	Regular V.42 result codes disabled.
» \V1	Extended V.42 result codes enabled.

V.42bis OPERATION
Type:	Configuration
Format:	AT [cmds] \Mn [cmds]
Example:	AT \M0 &W <CR>
Description:	Controls V.42bis operation.
Command	Function
» \M0	V.42bis enabled.
\M1	V.42bis disabled.

V.42bis STRING LENGTH
Type:	Immediate
Format:	AT [cmds] \H=n [cmds]
Example:	AT \H=13 <CR>
Default:	16
Range:	6 - 250
Unit:	ASCII
Description:	Sets the string length in V.42bis.

VIEW V.42-RELATED CONFIGURATION
Type:	Configuration
Format:	AT [cmds] \Sn [cmds]
Example:	AT \S &W <CR>
Description:	Shows the status of V.42 configuration.

CALL FAILURE INDICATOR
Type:	Response
Format:	CFIxx
Description:	Indicates that the attempt to connect failed.
Response		Name	Description:
CFIAB		Abort	The call was aborted because either no dialtone was detected or a character was received from the host computer.
CFICB		DCE Busy	An incoming call was detected after the dialing command was issued.
CFIET		Engaged Tone	A busy signal was detected.
CFIND		No Dial	Modem didn’t detect a dailtone.
CFINS		Not Stored	The memory address given did not contain a valid telephone number.
CFINT		No Tone	The remote party did not issue a response tone.
CFIRT		Ring Tone	A responding tone was detected, but the call timed out before it was completed.

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

CONNECTION
Type:	Response
Format:	CNX
Description:	A connection has been successfully established.

DISPLAY STORED NUMBERS
Type:	Immediate
Format:	RLN
Example:	RLN<CR>
Description:	Requests the modem to return the list of stored numbers.

INVALID
Type:	Response
Format:	INVxx
Example:	INVCU
Description:	The modem was issued an improper command. The two letters following indicate the error.
Code	Meaning
INVCU	An error occurred in transmission.
INVMS	The command was too long or was followed by a semicolon.
INVPS	An improper number parameters were issued.
INVPV	The parameters were ignored or invalid.

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.