CONNECTIONS
Purpose	Location	Purpose	Location
Lease line out	CN1	Diagnostic connector	CN4
Line in	CN2	AC power	CN5
RS-232/422	CN3	Data/Voice	BT1

A/A1 - MI/MIC CONTROL
Control Type	JP3	JP4
» A/A1 control.	Pin 1 & 2 closed.	Pin 1 & 2 closed.
MI/MIC control.	Pin 2 & 3 closed.	Pin 2 & 3 closed.

FACTORY CONFIGURED SETTINGS - DO NOT ALTER
Jumper	Settings
JP1	Pin 2 & 3 closed.
JP2	Pin 2 & 3 closed.
JP5	Pin 2 & 3 closed.
JP6	Pin 2 & 3 closed.

FRAME/SIGNAL GROUND
Ground Type	JP7
Frame and signal ground connected.	Pin 1 & 2 closed.
» Frame and signal ground not connected.	Pin 2 & 3 closed.

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
HS	Red	On	Modem is operating at 7200bps or faster
HS	Red	Off	Modem is operating at slower than 7200bps
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
TR	Red	Blinking	Voice mode
MR	Red	On	Modem is ready
MR	Red	Off	Modem is not ready
MR	Red	Blinking	Test mode enabled

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
Format:	AT [cmds] S46=n [cmds]
Example:	AT S46=16 <CR>
Description:	Selects CD level for dial-up and leased line application.
Command	Leased line
0	-26dBm
16	-33dBm
í 32	-43dBm

CONNECTION SPEED LOWER LIMIT
Format	AT [cmds] S44=n [cmds]
Example:	AT S44=14 <CR>
Default:	14
Range:	6 - 15
Unit:	Bit-mapped
Description:	Selects minimum data rate.
Command	Function
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.
» 14	Select 0 - 300bps speed.

CONNECTION SPEED UPPER LIMIT
Format	AT [cmds] S43=n [cmds]
Example:	AT S43=6 <CR>
Default:	6
Range:	6 - 16
Unit:	Bit-mapped
Description:	Selects maximum data rate.
Command	Function
» 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.
14	Select 0 - 300bps speed.
15	Select 1200/75bps speed.
16	Select EIA control.

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.

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.

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.

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.

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-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:	Controls
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 Enabled.
\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.

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.