Card Type	ISDN TA
Chipset	Unidentified
Error Correction/Compression	STAC
ISDN Transfer Rate	56Kbps x 2/64Kbps x 2
ISDN Protocol	V.120, PPP
Switch Type	5ESS, DMS100, EWSD, NI-1
Data Bus	Serial

CONNECTIONS
Function	Label	Function	Label
ISDN U interface	CN1	Analog adapter 2	CN4
Serial port	CN2	9V DC power in	CN5
Analog adapter 1	CN3	Reset switch	SW1

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Green	On	Power is on
PWR	Green	Off	Power is off
TEST	Green	On	TA failed last test
TEST	Green	Blinking	TA is executing test
TEST	Green	Off	TA is not executing test
D	Green	On	Signal is not synchronized or ISDN is not connected
D	Green	Blinking	Signal is synchronized but D-channel protocols not established
D	Green	Off	Signal is synchronized
B1	Green	On	Data call connected on B1 channel
B1	Amber	On	Voice call connected on B1 channel
B1	Green	Blinking	TA is dialing data call on B1 channel
B1	Amber	Blinking	TA is dialing voice call on B1 channel
B1	N/A	Off	B1 channel is not connected

DIAGNOSTIC LED(S) (CON’T)
LED	Color	Status	Condition
B2	Green	On	Data call connected on B2 channel
B2	Amber	On	Voice call connected on B2 channel
B2	Green	Blinking	TA is dialing data call on B2 channel
B2	Amber	Blinking	TA is dialing voice call on B2 channel
B2	N/A	Off	B2 channel is not connected
SD	Green	On	TA is transmitting data
SD	Green	Off	TA is not transmitting data
RD	Green	On	TA is receiving data
RD	Green	Off	TA is not receiving data
TR	Green	On	DTR signal is high
TR	Green	Off	DTR signal is low

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++

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

&C, &D, &F, &W

Extended AT Commands

\Q, \T

S-Registers

S0

Note:See MHI help file for complete information.

ANALOG ADAPTER CALL ROUTING
Format:		AT [cmds] S63= n [cmds]
	Default:	15
	Range:	0 - 15
	Description:	Selects which analog adapters may answer which calls.
	Bit	Value	Function
	0	0 1	Calls to analog adapter 1 may not be answered by analog adapter 1. Calls to analog adapter 1 may be answered by analog adapter 1.
	1	0 1	Calls to analog adapter 1 may not be answered by analog adapter 2. Calls to analog adapter 1 may be answered by analog adapter 2.
	2	0 1	Calls to analog adapter 2 may not be answered by analog adapter 1. Calls to analog adapter 2 may be answered by analog adapter 1.
	3	0 1	Calls to analog adapter 2 may not be answered by analog adapter 2. Calls to analog adapter 2 may be answered by analog adapter 2.

ANSWER DELAY
Type:		Register
	Format:	AT [cmds] S75= n [cmds]
	Description:	Selects whether the TA waits to answer an incoming call.
	Command	Function
»	S75=0	TA does not wait to answer an incoming call.
	S75=1	TA waits two seconds to answer an incoming call.

CALL TYPE
Type:		Register
	Format:	AT [cmds] S61= n [cmds]
	Description:	Selects whether the TA will force a particular call type.
	Command	Function
»	S61=0	D command dials in standard mode and DD command dials in 56Kbps permissive mode.
	S61=1	Both commands dial in 56Kbps permissive mode.
	S61=2	Both commands dial in standard mode.

CALLER ID - ANALOG ADAPTER 1
Type:	Register (read-only)
Format:	AT [cmds] S65? [cmds]
Description:	Displays the Caller ID information for analog adapter 1.

CALLER ID - ANALOG ADAPTER 2
Type:	Register (read-only)
Format:	AT [cmds] S66? [cmds]
Description:	Displays the Caller ID information for analog adapter 1.

CALLER ID - ISDN
Type:	Register (read-only)
Format:	AT [cmds] S67? [cmds]
Description:	Displays the Caller ID information for the ISDN line.

CHALLENGE HANDSHAKE AUTHENTICATION PROTOCOL
Type:		Register
	Format:	AT [cmds] S84= n [cmds]
	Description:	Selects whether the TA will attempt to use CHAP.
	Command	Function
	S84=0	CHAP negotiation enabled.
»	S84=1	CHAP negotiation disabled.

COMPRESSION
Type:	Configuration
Format:	AT [cmds] %C n [cmds]
Description:	Selects whether the TA will use data compression.
Command	Function
%C0	Data compression disabled.
%C2	Data compression enabled.

DIAL - STANDARD
Type:	Immediate
Format:	AT [cmds] D <#> [cmds]
Description:	Dials the number indicated to make a standard ISDN connection.

DIAL - PERMISSIVE
Type:	Immediate
Format:	AT [cmds] DD <#> [cmds]
Description:	Dials the number indicated to make a 56Kbps permissive connection.

DISPLAY CONFIGURATION AND STATISTICS
Type:	Immediate
Format:	AT [cmds] \S [cmds]
Description:	Displays the settings of all commands and statistics about the current connection.

DISPLAY FIRMWARE VERSION
Type:	Immediate
Format:	AT [cmds] %V [cmds]
Description:	Displays the current firmware version.

DISPLAY INFORMATION
Type:	Immediate
Format:	AT [cmds] I n [cmds]
Description:	Displays information requested about the TA.
Command	Function
I0	Displays model number.
I1	Displays ROM checksum.
I2	Tests and reports ROM checksum.
I3	Displays model and version.

DISPLAY REGISTERS
Type:	Immediate
Format:	AT [cmds] %R n [cmds]
Description:	Displays the settings of all status registers.

DISPLAY SERIAL NUMBER
Type:	Immediate
Format:	AT [cmds] %S n [cmds]
Description:	Displays the serial number of the TA.

DYNAMIC BANDWIDTH ALLOCATION
Type:		Register
	Format:	AT [cmds] S70= n [cmds]
	Description:	Selects whether dynamic bandwidth allocation will be used to allow simultaneous data and voice calls.
	Command	Function
	S70=0	Dynamic bandwidth allocation disabled.
»	S70=1	Dynamic bandwidth allocation enabled.

ENDPOINT DISCRIMINATOR
Type:	Register
Format:	AT [cmds] S83= nnnn [cmds]
Description:	Sets the endpoint discriminator address for multipoint PPP systems. Up to twenty numbers may be specified.

ENDPOINT DISCRIMINATOR CLASS
Type:		Configuration
	Format:	AT [cmds] S82= n [cmds]
	Description:	Sets the endpoint discriminator class for multipoint PPP systems.
	Command	Function
	S82=1	User-defined address.
	S82=2	IP address.
	S82=3	802.1 MAC address.
	S82=4	PPP magic number block.
»	S82=5	Public Switched Network Directory number.

LOCAL SERIAL PORT SPEED
Type:		Configuration
	Format:	AT [cmds] $B n [cmds]
	Description:	Sets the speed that the TA will communicate with the DTE.
	Command	Function
»	$B0	Auto-detects current serial port speed.
	$B1200	Sets the serial port to 1200bps.
	$B2400	Sets the serial port to 2400bps.
	$B4800	Sets the serial port to 4800bps.
	$B9600	Sets the serial port to 9600bps.
	$B19200	Sets the serial port to 19.2Kbps.
	$B38400	Sets the serial port to 38.4Kbps.
	$B57600	Sets the serial port to 57.6Kbps.
	$B115200	Sets the serial port to 115.2Kbps.
	$B230400	Sets the serial port to 230.4Kbps.

LINE SPEED
Type:		Register
	Format:	AT [cmds] S60= n [cmds]
	Description:	Selects the line speed that the TA will attempt to connect at.
	Command	Function
»	S60=56	TA will attempt to connect at 56Kbps.
	S60=64	TA will attempt to connect at 64Kbps.

MULTILINK PPP
Type:		Register
	Format:	AT [cmds] S80= n [cmds]
	Description:	Selects whether the TA will use Multilink PPP.
	Command	Function
	S80=0	Multilink PPP disabled.
»	S80=1	Multilink PPP enabled.

PHONE NUMBER 1
Type:	Register
Format:	AT [cmds] S51= <#> [cmds]
Description:	Sets the TA’s first phone number.

PHONE NUMBER 2
Type:	Register
Format:	AT [cmds] S53= <#> [cmds]
Description:	Sets the TA’s first phone number.

PROTOCOL - B-CHANNEL
Type:		Register
	Format:	AT [cmds] S71= n [cmds]
	Description:	Selects the protocol the TA will use on the B channels.
	Command	Function
»	S71=0	Auto-select common protocol.
	S71=1	TA will use PPP conversion.
	S71=2	TA will use V.120

SERVICE PROFILE IDENTIFIER 1
Type:	Register
Format:	AT [cmds] S52= <#> [cmds]
Description:	Sets the TA’s first SPID.

SERVICE PROFILE IDENTIFIER 2
Type:	Register
Format:	AT [cmds] S54= <#> [cmds]
Description:	Sets the TA’s second SPID.

SWITCH TYPE
Type:		Register
	Format:	AT [cmds] S50= n [cmds]
	Description:	Selects the type of IDSN switch the TA is connected to.
	Command	Function
»	0	Unknown switch type
	1	AT&T 5ESS custom switch type.
	3	NI-1/AT&T 5ESS switch type.
	6	NI-1/National Telecom NI-1 or Siemens EWSD switch type.

TERMINAL ENDPOINT IDENTIFIER 1
Type:	Register (read-only)
Format:	AT [cmds] S55? [cmds]
Description:	Displays the first TEI assigned by the ISDN switch. A value of 255 indicated that the switch did not assign a TEI.

TERMINAL ENDPOINT IDENTIFIER 1 STATUS
Type:	Register (read-only)
Format:	AT [cmds] S57? [cmds]
Description:	Returns a value indicating the status of the first TEI.
Value	Meaning
0	TA has not attempted to initialize with SPID 1.
1	TA succeeded in initializing with SPID 1.
2	TA failed in initializing with SPID 1.

TERMINAL ENDPOINT IDENTIFIER 2
Type:	Register (read-only)
Format:	AT [cmds] S56? [cmds]
Description:	Displays the second TEI assigned by the ISDN switch. A value of 255 indicated that the switch did not assign a TEI.

TERMINAL ENDPOINT IDENTIFIER 2 STATUS
Type:	Register (read-only)
Format:	AT [cmds] S58? [cmds]
Description:	Returns a value indicating the status of the second TEI.
Value	Meaning
0	TA has not attempted to initialize with SPID 2.
1	TA succeeded in initializing with SPID 2.
2	TA failed in initializing with SPID 2.

U INTERFACE STATUS
Type:	Register (read-only)
Format:	AT [cmds] S59? [cmds]
Description:	Returns a value indicating the status of the U interface.
Command	Function
0	U interface is not synchronized.
1	U interface is synchronized.

V.120 FRAME TYPE
Type:		Register
	Format:	AT [cmds] S73= n [cmds]
	Description:	Selects the frame type that the TA will use when in V.120 mode.
	Command	Function
»	S73=0	TA will use I frames.
	S73=1	TA will use UI frames.

V.120 MAXIMUM FRAME SIZE
Type:	Register
Format:	AT [cmds] S74= n [cmds]
Default:	256
Range:	240 - 256
Unit:	1 byte
Description:	Selects the maximum frame size used for V.120 mode.
Note: Adtran ISDN uses a maximum frame size of 253 bytes.