Card Type	ISDN TA
Chipset	Unidentified
ISDN Transfer Rate	56Kbps x 2/64Kbps x 2
ISDN Protocol	V.110, X.75
Switch Type	1TR6, 5ESS, DMS100, DSS1, NI-1
Data Bus	Serial

CONNECTIONS
Function	Label	Function	Label
SELECT button	BT1	ISDN S/T interface	CN1
ENTER button	BT2	LED display	LED
RESET button	BT3	Header to interface board W1B	W1A
Note: Either CN1 or the ISDN interface on the installed interface board may be used, but not both.

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Configuration may be changed via interface or front panel	S1/1	Off
Configuration may be changed via front panel supervisor only	S1/1	On
í ISDN connects with standard dialing	S1/2	Off
ISDN connects with S0FV (leased-line)	S1/2	On
í 1TR6 Service Indicator set for data transmission	S1/3	Off
1TR6 Service Indicator set for X.21 services	S1/3	On
í TA operates in synchronous mode	S1/4	Off
TA operates in asynchronous mode	S1/4	On
í Factory configured - do not alter (synchronous mode)	S1/5	N/A

USER CONFIGURABLE SETTINGS (CON’T)
Setting	Label	Position
í AT command set enabled (asynchronous mode)	S1/8	On
V.25bis command set enabled (asynchronous mode)	S1/8	Off
í X.21 command set enabled (synchronous mode)	S1/8	On
V.25bis command set enabled (synchronous mode)	S1/8	Off
í Factory configured - do not alter	S2/1	On
í CD signal forced high	S2/6	Off
CD signal high when connection is synchronized	S2/6	On
í DSR signal forced high	S2/7	Off
DSR signal high when connection is synchronized	S2/7	On
í Unit is a table-top version	S2/8	Off
Unit is a rack mount version	s2/8	On

DATA FORMAT SELECTION (ASYNCHRONOUS MODE)
Setting	S1/5	S1/6	S1/7
7 data bits, no parity, 1 stop bit	Off	On	On
7 data bits, even parity, 1 stop bit	On	On	On
8 data bits, no parity, 1 stop bit	On	On	Off
8 data bits, even parity, 1 stop bit	Off	Off	On
8 data bits, odd parity, 1 stop bit	On	Off	On
í 8 data bits, no parity, 2 stop bits	Off	Off	Off
8 data bits, even parity, 2 stop bits	On	Off	Off
8 data bits, odd parity, 2 stop bits	Off	On	Off

DATA FORMAT SELECTION (SYNCHRONOUS MODE)
Setting	S1/6	S1/7
ASCII character set, BSC encoding	On	On
ASCII character set, HDLC encoding	Off	On
EBCDIC character set, BSC encoding	On	Off
í EBCDIC character set, HDLC encoding	Off	Off

LINE SPEED
Setting	S2/2	S2/3	S2/4	S2/5
300bps	Off	On	Off	On
600bps	On	Off	Off	On
1200bps	Off	Off	Off	On
2400bps	On	On	On	Off
4800bps	Off	On	On	Off
9600bps	On	Off	On	Off
19.2Kbps	Off	Off	On	Off
38.4Kbps	On	On	Off	Off
48Kbps	Off	On	Off	Off
56Kbps	On	Off	Off	Off
í 64Kbps	Off	Off	Off	Off
Note: Asynchronous speeds may range from 300bps to 38.4Kbps, while synchronous speeds may range from 1200bps to 64Kbps.

SUBADDRESS SELECTION
Setting	S3
EAZ 1	Position 1
EAZ 2	Position 2
EAZ 3	Position 3
EAZ 4	Position 4
EAZ 5	Position 5
EAZ 6	Position 6
EAZ 7	Position 7
EAZ 8	Position 8
TA is part of hunt group	Position 0
Note: When adapter is set for leased-line mode, the EAZ must be set to 2.

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
S0	Yellow	On	ISDN connection is active
S0	Yellow	Blinking	ISDN connection has been made but is not active
S0	Yellow	Off	ISDN is not connected
P1	Green	On	Port 1 is connected to ISDN
P1	Green	Blinking	Port 1 has received an ISDN call but has not connected
P1	Green	Off	Port 1 is not connected to ISDN
P2	Green	On	Port 2 is connected to ISDN
P2	Green	Blinking	Port 2 has received an ISDN call but has not connected
P2	Green	Off	Port 2 is not connected to ISDN
Note: P2 will have no function on models with only one port.

CONNECTIONS
Function	Label	Function	Label
Supervisor port	CN1	DC power in	CN4
ISDN S/T interface	CN2	Header to main board W1A	W1B
X.21 serial port	CN3

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Signal ground not connected to chassis ground	P31	Open
Signal ground connected to chassis ground	P31	Closed

RECEIVER OPEN CIRCUIT FAILSAFE
Setting	P28	R3
í Enabled	Not installed	Installed
Disabled	Installed	Not installed

CONNECTIONS
Function	Label	Function	Label
Supervisor port	CN1	X.21 serial port 2	CN4
ISDN S/T interface	CN2	DC power in	CN5
X.21 serial port 1	CN3	Header to main board W1A	W1B

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Signal ground not connected to chassis ground	P31	Open
Signal ground connected to chassis ground	P31	Closed

PORT 1 RECEIVER OPEN CIRCUIT FAILSAFE
Setting	P16	R4
í Enabled	Not installed	Installed
Disabled	Installed	Not installed

PORT 2 RECEIVER OPEN CIRCUIT FAILSAFE
Setting	P17	R5
í Enabled	Not installed	Installed
Disabled	Installed	Not installed

CONNECTIONS
Function	Label	Function	Label
Supervisor port	CN1	DC power in	CN4
ISDN S/T interface	CN2	Header to main board W1A	W1B
V.24 serial port	CN3

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Signal ground not connected to chassis ground	P32	Open
Signal ground connected to chassis ground	P32	Closed

RECEIVER OPEN CIRCUIT FAILSAFE
Setting	P1	R4
í Enabled	Not installed	Installed
Disabled	Installed	Not installed

CONNECTIONS
Function	Label	Function	Label
Supervisor port	CN1	V.24 serial port 1 via DB-26 port	CN4
ISDN S/T interface	CN2	DC power in	CN5
V.24 serial port 2 via DB-26 port	CN3	Header to main board W1A	W1B
Note: Standard V.24 serial ports are provided on included adapter cables.

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Signal ground not connected to chassis ground	P33	Open
Signal ground connected to chassis ground	P33	Closed

PORT 1 RECEIVER OPEN CIRCUIT FAILSAFE
Setting	P1	R3
í Enabled	Not installed	Installed
Disabled	Installed	Not installed

PORT 2 RECEIVER OPEN CIRCUIT FAILSAFE
Setting	P2	R4
í Enabled	Not installed	Installed
Disabled	Installed	Not installed

CONNECTIONS
Function	Label	Function	Label
Supervisor port	CN1	DC power in	CN4
ISDN S/T interface	CN2	Header to main board W1A	W1B
V.35 serial port	CN3

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Signal ground not connected to chassis ground	P32	Open
Signal ground connected to chassis ground	P32	Closed

CONNECTIONS
Function	Label	Function	Label
Supervisor port	CN1	V.35 serial port 1 via DB-26 port	CN4
ISDN S/T interface	CN2	DC power in	CN5
V.35 serial port 2 via DB-26 port	CN3	Header to main board W1A	W1B
Note: Standard V.35 serial ports are provided on included adapter cables.

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Signal ground not connected to chassis ground	P32	Closed
Signal ground connected to chassis ground	P32	Open

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, A/

A, E, H, O, Q, V, X, Z

&D, &F, &V, &W, &Z %I

S-Registers

S0, S1, S2, S3, S4, S5

V.25bis Commands

CIC, CRI, CRS, DIC, PRN

Note: See MHI help file for complete information.

UNIDENTIFIED COMMANDS
Command	Default
%L	0
%M	0

ACCESS TYPE
Type:	Configuration
Format:	AT [cmds] %Kn [cmds]
Description:	Selects the type of access for this ISDN line.
Command	Function
í %K1	Line is intermittent dial-up.
%K2	Line is semi-permanent dial-up.
%K3	Line is time-link dial-up.

ASYNC/SYNC MODE
Type:	Configuration
Format:	AT [cmds] &Mn [cmds]
Description:	Selects whether the adapter is operating in asynchronous or synchronous mode.
Command	Function
í &M0	Asynchronous mode selected.
&M1	Asynchronous command mode, synchronous data mode at 600bps.
&M2	Asynchronous command mode, synchronous data mode at 1200bps.
&M3	Asynchronous command mode, synchronous data mode at 2400bps.
&M4	Asynchronous command mode, synchronous data mode at 4800bps.
&M5	Asynchronous command mode, synchronous data mode at 9600bps.
&M6	Asynchronous command mode, synchronous data mode at 19.2Kbps.
&M7	Asynchronous command mode, synchronous data mode at 38.4Kbps.
&M8	Asynchronous command mode, synchronous data mode at 48Kbps.
&M9	Asynchronous command mode, synchronous data mode at 56Kbps.
&M10	Asynchronous command mode, synchronous data mode at 64Kbps.
&M11	Synchronous data mode at 64Kbps with byte timing.
&M13	Synchronous data mode at 128Kbps.

CALLBACK DELAY
Type:	Configuration
Format:	AT [cmds] %H=n [cmds]
Default:	Unidentified
Range:	0 - 255
Unit:	1 second
Description:	Sets the amount of time that the adapter will wait after a call disconnects before initiating a callback sequence.

CALLBACK MODE
Type:	Configuration
Format:	AT [cmds] %Gn [cmds]
Description:	Selects when the adapter will call back an incoming call.
Command	Function
í %G0	Neither initiate nor allow callback requests.
%G1	Do not initiate callbacks but allow requests.
%G2	Initiate callbacks but do not allow requests.
%G3	Initiate callbacks and allow requests.

CALL BUNDLING SOURCE
Type:	Configuration
Format:	AT [cmds] %Jn [cmds]
Description:	Selects which stored number the modem will dial for the B2 channel when attempting call bundling. Executing %J0 will use the same number as was dialed for the B1 channel.

CTS SIGNAL
Type:	Configuration
Format:	AT [cmds] &Rn [cmds]
Description:	Controls the behaviour of the CTS signal.
Command	Function
í &R0	CTS follows RTS.
&R1	CTS forced high.
&R2	CTS controlled by remote; high when connection is made at 48Kbps or less.

DATA FORMAT
Type:	Configuration
Format:	AT [cmds] %Nn [cmds]
Description:	Selects the format of the data from the serial port.
Command	Function
%N0	7 data bits, no parity, 1 stop bit.
%N1	7 data bits, even parity, 1 stop bit.
%N2	8 data bits, odd parity, 1 stop bit.
%N3	8 data bits, even parity, 1 stop bit.
í %N4	8 data bits, no parity, 1 stop bit.
%N5	8 data bits, odd parity, 2 stop bits.
%N6	8 data bits, even parity, 2 stop bits.
%N7	8 data bits, no parity, 2 stop bits.

DCD SIGNAL
Type:	Configuration
Format:	AT [cmds] &Cn [cmds]
Description:	Controls the behaviour of the DCD signal.
Command	Function
í &C0	DCD high when call is synchronized.
&C1	DCD forced high.
&C2	DCD controlled by remote; high when connection is made at more than 48Kbps.

DISPLAY INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested about the adapter.
Command	Function
I	Displays complete identification.
I0	Displays information about the control firmware.
I1	Displays information about the ISDN firmware.
I2	Displays the version of the hardware.
I3	Displays information about the interface board.

DISPLAY STATUS
Type:	Immediate
Format:	AT [cmds] %Sn [cmds]
Description:	Displays the status of the indicated part of the adapter.
Command	Function
%S	Display all information.
%S0	Display port status.
%S1	Display S0 status.
%S2	Display last ISDN error code in hex.
%S3	Display SPID 1.
%S4	Display SPID 2.
DSR SIGNAL
Type:	Configuration
Format:	AT [cmds] &Sn [cmds]
Description:	Controls the behaviour of the DSR signal.
Command	Function
í &S0	DSR high when connection is successful.
&S1	DSR forced high.
&S2	DSR controlled by remote; high when connection is made at more than 48Kbps.
&S3	DSR high when connection is synchronized.

ISDN B-CHANNEL MAPPING
Type:	Configuration
Format:	AT [cmds] %Qn [cmds]
Description:	Selects how the adapter will map the B-channel subaddresses.
Command	Function
í %Q0	B-channel mapping disabled.
%Q1	B-channel mapping enabled.

LOCAL SERIAL PORT SPEED
Type:	Configuration
Format:	AT [cmds] %Rn [cmds]
Description:	Selects what speed the local serial port is operating at in asynchronous mode.
Command	Function
%R0	Set speed to 300bps.
%R1	Set speed to 600bps.
%R2	Set speed to 1200bps.
%R3	Set speed to 2400bps.
%R4	Set speed to 4800bps.
í %R5	Set speed to 9600bps.
%R6	Set speed to 19.2Kbps.
%R7	Set speed to 38.4Kbps.

MATCH IN-BAND SPEED
Type:	Configuration
Format:	AT [cmds] %An [cmds]
Description:	Selects whether the adapter may switch to match the in-band speed of the connection.
Note:	This command has no effect in asynchronous mode.
Command	Function
%A0	Adapter may switch to lower speed.
í %A1	Adapter may not switch speed.
%A2	Adapter may switch to higher speed.
%A3	Adapter may switch to any speed.

MATCH BEARER SPEED
Type:	Configuration
Format:	AT [cmds] %Bn [cmds]
Description:	Selects whether the adapter may switch to match the bearer speed of the connection.
Note:	This command has no effect in asynchronous mode.
Command	Function
%B0	Adapter may switch to lower speed.
í %B1	Bearer speed matching disabled.
%B2	Adapter may switch to higher speed.
%B3	Adapter may switch to any speed.
%B4	Bearer speed matching enabled.

PASSWORD CHECKING
Type:	Configuration
Format:	AT [cmds] %Dn [cmds]
Description:	Selects when the adapter will require a password for configuration changes.
Command	Function
í %D0	Require password for remote configuration changes only.
%D1	Require password for all configuration changes.

PASSWORD SET
Type:	Configuration
Format:	AT %C=xxxx
Description:	Sets the password to a case-sensitive string of up to ten characters. If no string is entered the password is returned to its default.

PROTOCOL
Type:	Register
Format:	AT [cmds] S8=n [cmds]
Description:	Selects the bit rate adaptation protocol the adapter will use.
Command	Function
S8=0	Adapter will use X.30.
S8=1	Adapter will use V.110.

SERVICE INDICATOR
Type:	Register
Format:	AT [cmds] S6=n [cmds]
Description:	Sets the 1TR6 Service Indicator.
Command	Function
í S6=3	1TR6 Service Indicator set for data transmission.
S6=7	1TR6 Service Indicator set for X.21 services.

SUBADDRESS
Type:	Register
Format:	AT [cmds] S7=n [cmds]
Description:	Sets the subaddress to a value from 1 to 8.

SUBADDRESS COPYING
Type:	Configuration
Format:	AT [cmds] %En [cmds]
Description:	Selects whether the adapter will copy the subaddress to the call number.
Command	Function
í %E0	Subaddress copying disabled.
%E1	Subaddress copying enabled.

SUBADDRESS - SETUP
Type:	Configuration
Format:	AT [cmds] %Pn [cmds]
Description:	Selects which subaddress the adapter sends during call setup.
Command	Function
í %P0	Adapter sends remote port subaddress.
%P1	Adapter sends local port subaddress.

SUBADDRESS SOURCE
Type:	Configuration
Format:	AT [cmds] %On [cmds]
Description:	Selects the source of the subaddress sent to the remote system.
Command	Function
í %O0	Taken from call number string.
%O1	Global call sent in-band.
%O2	Stored port subaddress sent in-band.
%O3	Stored port subaddress sent in-band and during call setup.

SWITCH TYPE
Type:	Configuration
Format:	AT [cmds] %Fn [cmds]
Description:	Selects the switch type the adapter is connected to.
Command	Function
í %F0	Adapter is connected to National NI-1 switch.
%F1	Adapter is connected to AT&T 5E6 switch.
%F2	Adapter is connected to AT&T 5E8 switch.
%F3	Adapter is connected to Northern Telecom DMS-100 switch.

CALL REQUESTED NUMBER
Type:	Immediate
Format:	CRN<#>
Description:	Dials the number given; it will ignore spaces and hyphens in the string; if the string is more than fifty characters long, a result of INV will be returned.
Command	Function
CRN<#>*n	Dials the number indicated and requests subaddress n.
CRN<#>/n	Dials the number indicated and requests subaddress n.

CTS SIGNAL
Type:	Configuration
Format:	PRO4;n
Description:	Controls the behaviour of the CTS signal.
Command	Function
í PRO4;0	CTS follows RTS.
PRO4;1	CTS forced high.
PRO4;2	CTS controlled by remote; high when connection is made at 48Kbps or less.

DCD SIGNAL
Type:	Configuration
Format:	PRO6;n
Description:	Controls the behaviour of the DCD signal.
Command	Function
í PRO6;0	DCD high when call is synchronized.
PRO6;1	DCD forced high.
PRO6;2	DCD controlled by remote; high when connection is made at more than 48Kbps.

DISPLAY COMMAND SETTING
Type:	Immediate
Format:	RLO n
Description:	Displays the setting of the indicated option set with PROn; the adapter will respond with LSOn;a where a is the setting. Two values may be displayed that may not be set with PROn. They are listed below. If no value is given all options are listed.
Command		Value	Meaning
RLO 8		0	Terminal is in asynchronous mode.
		1	Terminal is in synchronous mode.
RLO 9		3	1TR6 Service Indicator set for data transmission.
		7	1TR6 Service Indicator set for X.21 services.

DISPLAY STORED NUMBER
Type:	Immediate
Format:	RLN n
Description:	Displays the telephone number stored in memory location n. If no location is specified, all stored numbers are listed.

DSR SIGNAL
Type:	Configuration
Format:	PRO5;n
Description:	Controls the behaviour of the DSR signal.
Command	Function
í PRO5;0	DSR high when connection is successful.
PRO5;1	DSR forced high.
PRO5;2	DSR controlled by remote; high when connection is made at more than 48Kbps.
PRO5;3	DSR high when connection is synchronized.

ECHO
Type:	Configuration
Format:	PRO2;n
Description:	Selects whether the modem will echo data received from the DTE back.
Note:	This command has no effect in synchronous mode.
Command	Function
PRO2;0	Echo disabled.
í PRO2;1	Echo enabled.

INCOMING CALL INFORMATION
Type:	Configuration
Format:	PRO7;n
Description:	Selects whether the INC message is V.25bis standard or displays extra information.
Command	Function
PRO7;0	INC message is V.25bis standard.
PRO7;1	INC message displays extra information.

PROTOCOL
Type:	Register
Format:	PRO3;n
Description:	Selects the bit rate adaptation protocol the adapter will use.
Command	Function
PRO3;0	Adapter will use X.30.
PRO3;1	Adapter will use V.110.

RESET TO SWITCH DEFAULTS
Type:	Immediate
Format:	PRO0;0
Description:	Resets the configuration of the adapter to the settings of S1, S2, and S3.

SUBADDRESS
Type:	Configuration
Format:	PRO1;n
Description:	Sets the subaddress to a value from 1 to 8.