Card Type	ISDN TA
Chip Set	Unidentified
I/O Options	Power, ISDN BRI interface via RJ-45 connector, RJ-11 analog port (2), ISDN U interface via RJ-11 connector, 9-pin data port
ISDN Rate	128Kbps
ISDN Modulation Protocol	V.120, HDLC, PPP
Error Correction/Compression	Unidentified
Data Bus	External

CONNECTIONS
Function	Label		Function		Label
Power		CN1		ISDN U interface (RJ-11)		CN5
Telephone line 1 (RJ-11)		CN2		9-pin serial port		CN6
Telephone line 2 (RJ-11)		CN3		Power switch		SW1
ISDN BRI interface (RJ-45)		CN4

USER CONFIGURABLE SETTINGS
Setting	Label	Position
Remote configuration enabled	SW1/1	On
Remote configuration disabled	SW1/1	Off
Local loopback enabled	SW1/2	On
Local loopback disabled	SW1/2	Off
Factory configured - do not alter	SW1/3	Unidentified
Factory configured - do not alter	SW1/4	Unidentified
Factory configured - do not alter	SW1/5	Unidentified
Forced software download enabled	SW1/6	On
Forced software download disabled	SW1/6	Off

S/T TERMINATION SELECTION
Setting	SW1/7	SW1/8
í 100Ohm resistance enabled	On	On
Resistance disabled	Off	Off

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Green	On	Power is on
PWR	Green	Off	Power is off
LNE	Green	On	U interface active
LNE	Red	On	U interface inactive
TEL1	Green	On	Analog connection is good on telephone line 1
TEL1	Green	Blinking	Analog connection is being established on telephone line 1
TEL1	Green	Off	Analog connection is broken on telephone line 1
TEL2	Green	On	Analog connection is good on telephone line 2
TEL2	Green	Blinking	Analog connection is being established on telephone line 2
TEL2	Green	Off	Analog connection is broken on telephone line 2
DATA	Green	On	Network connection is good on B-channel 1
DATA	Green	Blinking	Network connection is being established on B-channel 1
DATA	Green	Off	Network connection is broken on B-channel 1
DATA	Red	On	Network connection is good on B-channel 2
DATA	Red	Blinking	Network connection is being established on B-channel 2
DATA	Red	Off	Network connection is broken on B-channel 2
TD	Green	On	Modem is transmitting data
TD	Green	Off	Modem is not transmitting data
RD	Green	On	Modem is receiving data
RD	Green	Off	Modem is not receiving data
DTR	Green	On	Computer is ready
DTR	Green	Off	Computer is not ready
TST	Yellow	On	TA is conducting a test
TST	Yellow	Off	TA is not conducting a test

SUPPORTED COMMAND SET

Basic AT Commands

AT, A/, ‘+++’

A, E, Q, V

&C, &Z

S Registers

S0, S1, S2, S3, S4

Note: See MHI Help File for full command documentation.

CONFIGURATION PROFILES
Type:	Immediate
Format:	AT [cmds] &V [cmds]
Description:	Displays active, stored, and system configuration profiles and analog port settings
Command	Function
&V0	Display active profile
&V1	Display user profile 1
&V2	Display user profile 2
&V3	Display system parameters and analog port settings

DATA SET READY (DSR)
Type:	Configuration
Format:	AT [cmds] &Sn [cmds]
Description:	Selects DSR options
Command	Function
&S0	DSR forced high
&S1	DSR high only while modem is handshaking or connected

DATA TERMINAL READY (DTR)
Type:	Configuration
Format:	AT [cmds] &Dn [cmds]
Description:	Selects modem response to DTR
Command	Function
&D0	DTR override
&D1	DTR toggle causes online command mode
í &D2	Normal DTR operations
&D3	Resets on receipt of DTR

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.
Command	Function
DL	Re-dial last number
DS=n	Dial stored telephone number n (0-3)

FACTORY DEFAULT PROFILE
Type:	Configuration
Format:	AT [cmds] &F [cmds]
Description:	Sets values in active profile to values found in the default profile
Command	Function
&F0	Load active profile the factory profile 0
&F1	Load active profile the factory profile 1
&F2	Load active profile the factory profile 2
&F3	Load active profile the factory profile 3
&F5	Load active profile the factory profile 5

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] &Kn [cmds]
Description:	Enables flow control options
Command	Function
&K0	Flow control disabled
í &K3	RTS/CTS flow control enabled
&K4	XON/XOFF flow control enabled

HOOK CONTROL
Type:	Immediate
Format:	AT [cmds] Hn [cmds]
Description:	Selects whether the modem is on-hook or off-hook
Command	Function
H0	Modem commanded to go on-hook (hang-up)

LAST CALL INFORMATION
Type:	Configuration
Format:	AT [cmds] &Ln [cmds]
Description:	Reports last call information
Command	Function
&L0	Reports information of last call on data port
&L1	Reports information of last call on telephone line 1
&L2	Reports information of last call on telephone line 2

ON-LINE
Type:	Immediate
Format:	AT [cmds] On [cmds]
Description:	Controls on-line command (data transmission) state options.
Command	Function
O0	On-line command mode with no retraining enabled

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports maximum network rate
I1	Reports ROM checksum
I2	Reserved
I3	Reports model ID and version number

RESTORE PROFILE ON POWER-UP
Type:	Configuration
Format:	AT [cmds] &Yn [cmds]
Description:	Restores a selected profile into the active profile on power-up (hard reset)
Command	Function
&Y1	Restore profile 1 on power-up
&Y2	Restore profile 2 on power-up

SELECT CALL PROGRESS RESULT CODES
Type:	Configuration
Format:	AT [cmds] Xn [cmds]
Description:	Enables selection of tone detection and associated result code format options
Command	Function
X0	CONNECT result codes are displayed in short form
í X1	CONNECT result codes are displayed in complete form
X2	VOICE and CONNECT result codes are displayed in complete form

SOFT RESET
Type:	Immediate
Format:	AT [cmds] Zn [cmds]
Description:	Restores modem profiles previously saved in non-volatile RAM using the &W command.
Command	Function
Z1	Restore setting 1
Z2	Restore setting 2

STORE ACTIVE PROFILE
Type:	Configuration
Format:	AT [cmds] &Wn [cmds]
Description:	Writes the values for the active profile into the non-volatile RAM
Command	Function
&W1	Write the active profile to stored profile 1
&W2	Write the active profile to stored profile 2

B-CHANNEL SELECTION
Type:	Configuration
Format:	AT [cmds] %A3=n [cmds]
Description:	Determines which B-channel will be used for leased line connection
Command	Function
í %A3=1	B1 channel
%A3=2	B2 channel

DATA FORWARDING CHARACTER
Type:	Configuration
Format:	AT [cmds] %L3=n [cmds]
Description:	Defines specified characters as data forwarding characters
Command	Function
%L3=0	No data forwarding character selected
í %L3=2	Carriage return

DATA PROTOCOL
Type:	Configuration
Format:	AT [cmds] %A2=n [cmds]
Description:	Determines rate adaptation protocol on B-channel. %A2? Displays protocol type
Command	Function
%A2=0	HDLC transparent rate adaptation
%A2=1	Asynchronous-to-synchronous PPP protocol
%A2=2	Multi-link PPP
%A2=3	Asynchronous inverse mux
%A2=5	V.120

IDLE TIMER DELAY
Type:	Immediate
Format:	AT [cmds] %L4 [cmds]
Default:	0
Range:	0-255
Unit:	x 50ms
Description:	Sets time delay between characters received from DTE. %L4=0 disables data forwarding on time-out

NUMBERING PLAN
Type:	Configuration
Format:	AT [cmds] %A0=n [cmds]
Description:	Determines rate adaptation protocol on B-channel
Command	Function
í %A0=0	Unknown
%A0=1	ISDN numbering plan selected

ANALOG PORT ATTRIBUTES
Type:	Configuration
Format:	AT [cmds] !Bn=x[cmds]
Description:	Sets analog port attributes. n selects phone port, x selects attribute. !Bn=? queries the attribute of selected port.
Command	Function
!B1=0	Telephone line 1 set to SPEECH
!B1=1	Telephone line 1 set to AUDIO
!B2=0	Telephone line 2 set to SPEECH
!B2=1	Telephone line 2 set to AUDIO

BANDWIDTH RELEASE ON A VOICE CALL REQUEST
Type:	Configuration
Format:	AT [cmds] @M5=n [cmds]
Description:	Enables/disables B-channel release during an MP session when there is a voice call request
Command	Function
@M5=0	Bandwidth release on voice call request disabled
í @M5=1	Bandwidth release on voice call request enabled

CACH/EKTS
Type:	Configuration
Format:	AT [cmds] !E0=n [cmds]
Description:	Disables/enables CACH/EKTS. !E0? queries CACH/EKTS status
Command	Function
!E0=0	CACH/EKTS disabled
!E0=1	CACH/EKTS enabled

CHAP ENCRYPTION
Type:	Configuration
Format:	AT [cmds] @M3=n [cmds]
Description:	Enables/disables CHAP password encryption protocol
Command	Function
í @M3=0	CHAP password encryption protocol disabled
@M3=1	CHAP password encryption protocol enabled

DATA SPID
Type:	Configuration
Format:	AT [cmds] !Cn=x [SPID#]
Description:	Specifies port and data service profile identifier assigned by the ISDN provider. Cn? queries setting
Command	Function
!C0	Sets switch type
!C6	Sets SPID of data port 1
!C7	Sets SPID of data port 2
!C8	Sets SPID of telephone line 1
!C9	Sets SPID of telephone line 2

FEATURE KEYS
Type:	Configuration
Format:	AT [cmds] !F0=nx [cmds]
Range:	n=0 - 255
Description:	Programs feature keys. !F0? queries feature keys
Command	Function
!F0=n1	Sets value for Conference Feature Key. Default value is 60
!F0=n2	Sets value for Transfer Feature Key. Default value is 61
!F0=n3	Sets value for Drop Feature Key. Default value is 62

PERSIST TIME
Type:	Configuration
Format:	AT [cmds] @M9=n [cmds]
Range:	0-255
Unit:	5sec
Description:	Sets the persist time to add or drop a second B-channel

SCREEN INCOMING CALLS
Type:	Configuration
Format:	AT [cmds] !Rn=x [cmds]
Description:	Screens incoming calls for different ports
Command		Function
n=0		Data port call screening
n=1		Analog telephone 1 call screening
n=2		Analog telephone 2 call screening
í x=0		All calls accepted on selected port
x=1		All calls rejected on selected port
x=2		Calls listed in the stored phone directory are accepted on selected port

STORE DIRECTORY NUMBER
Type:	Configuration
Format:	AT [cmds] !Nx=n [cmds]
Range (n):	0 - 24
Unit (n):	0 - 9, *, #
Description:	Store the directory number (n) for the port (x). !N? queries the stored directory numbers
Command	Function
!N0=n	Store the self directory number of data port 1
!N1=n	Store the self directory number of analog telephone port 1
!N2=n	Store the self directory number of analog telephone port 2
!N3=n	Store the self directory number of data port 2

SWITCH TYPE
Type:	Configuration
Format:	AT [cmds] !C0=n [cmds]
Description:	Selects network switch type.
Command	Function
!C0=1	AT&T 5ESS
!C0=2	AT&T or Siemens N1-1
!C0=3	Northern Telecom DMS-100
!C0=4	Northern Telecom NI-1

THROUGHPUT THRESHOLD TO ADD A SECOND CHANNEL
Type:	Configuration
Format:	AT [cmds] @M6=n [cmds]
Range:	0-64
Unit:	Kbits/sec
Description:	Defines the throughput threshold to add a second channel.
Note:	If the throughput is under the threshold for a time defined by @M9 the B-channel will be released. If the throughput is above the threshold, a second call will be established and the TA will attempt to bind the two B-channels together.

THROUGHPUT THRESHOLD TO RELEASE A SECOND CHANNEL
Type:	Configuration
Format:	AT [cmds] @M8=n [cmds]
Range:	0-64
Unit:	Kbits/sec
Description:	Defines the throughput threshold to release a second channel. Persist time defined by @M9

BACKSPACE CHARACTER
Type:	Register
Format	AT [cmds] S5=n [cmds]
Range:	0-127
Unit:	ASCII
Description:	Selects a character used for backspace <BS>

NO CARRIER TIME-OUT
Type:	Register
Format	AT [cmds] S7=n [cmds]
Range:	1-50
Unit:	1 second
Description:	Maximum wait time the modem uses after dialing to detect a carrier signal from the remote modem for both originating and answering calls.

ESCAPE SEQUENCE GUARD TIME
Type:	Register
Format	AT [cmds] S12=n [cmds]
Default:	10
Range:	0-255
Unit:	.1sec
Description:	Maximum allowable time between escape character sequence initiation and completion for the escape sequence to be executed. A value of 0 disables guard time.

DTR CHANGE THRESHOLD
Type:	Register
Format	AT [cmds] S25=n [cmds]
Default:	2
Range:	0-255
Unit:	.2 second
Description:	Sets maximum time a change in the DTR signal will be ignored