Card Type	ISDN TA
Chipset	Unidentified
Error Correction/Compression	STAC LZS
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 line 1 in	CN4
Serial port	CN2	DC power in	CN5
Analog line 2 in	CN3	Reset switch	SW1

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
LED1	Green	On	Power is on
LED1	Green	Off	Power is off
LED2	Green	On	TA failed last test
LED2	Green	Blinking	TA is performing test
LED2	Green	Off	TA passed last test
LED3	Green	On	ISDN is disconnected or not synchronized
LED3	Green	Blinking	ISDN is synchronized but signaling procedures not established
LED3	Green	Off	ISDN is fully connected

DIAGNOSTIC LED(S) (CON'T)
LED	Color	Status	Condition
LED4	Green	On	ISDN B1 channel connected in data mode
LED4	Green	Blinking	ISDN B1 channel placing data mode call
LED4	Yellow	On	ISDN B1 channel connected in voice mode
LED4	Yellow	Blinking	ISDN B1 channel placing voice mode call
LED4	N/A	Off	ISDN B1 channel not connected
LED5	Green	On	ISDN B2 channel connected in data mode
LED5	Green	Blinking	ISDN B2 channel placing data mode call
LED5	Yellow	On	ISDN B2 channel connected in voice mode
LED5	Yellow	Blinking	ISDN B2 channel placing voice mode call
LED5	N/A	Off	ISDN B2 channel not connected
LED6	Green	On	TA is transmitting data
LED6	Green	Off	TA is not transmitting data
LED7	Green	On	TA is receiving data
LED7	Green	Off	TA is not receiving data
LED8	Green	On	DTR signal is high
LED8	Green	Off	DTR signal is low

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, A/

A, E, H, O, V, Z

&C, &F, &W

Extended AT Commands

\Q, \T

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 í 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 í 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 í 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 í 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.

AUTO-ANSWER
Type:	Register
Format:	AT [cmds] S0=n [cmds]
Description:	Selects whether the TA will automatically answer incoming calls.
Command	Function
í S0=0	Auto-answer disabled.
S0=1	Auto-answer enabled.

ANSWER DELAY
Type:	Register
Format:	AT [cmds] S75=n [cmds]
Description:	Selects whether the TA waits to answer an incoming call.
Command	Function
í 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
í 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 2.

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.
í S84=1	CHAP negotiation disabled.

COMPRESSION
Type:	Configuration
Format:	AT [cmds] %Cn [cmds]
Description:	Selects whether the TA will use STAC compression.
Command	Function
%C0	STAC compression disabled.
%C2	STAC 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] In [cmds]
Description:	Displays information requested about the modem.
Command	Function
I0	Displays product identification code.
I1	Displays ROM checksum.
I3	Displays modem model, interface, firmware revision and date, and boot version.

DISPLAY INTERNAL VERSION
Type:	Immediate
Format:	AT [cmds] %S [cmds]
Description:	Displays an internal version number.

DISPLAY REGISTERS
Type:	Immediate
Format:	AT [cmds] %R [cmds]
Description:	Displays the settings of S-registers.

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.
í 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.
í S82=5	Public Switched Network Directory number.

LOCAL SERIAL PORT SPEED
Type:	Configuration
Format:	AT [cmds] $Bn [cmds]
Description:	Sets the speed of the local serial port.
Command	Function
í $B0	Auto-detect serial port speed (cannot detect 230.4Kbps speed.)
$B1200	Set serial port speed to 1200bps.
$B2400	Set serial port speed to 2400bps.
$B4800	Set serial port speed to 4800bps.
$B9600	Set serial port speed to 9600bps.
$B19200	Set serial port speed to 19.2Kbps.
$B38400	Set serial port speed to 38.4Kbps.
$B57600	Set serial port speed to 57.6Kbps.
$B115200	Set serial port speed to 115.2Kbps.
$B230400	Set serial port speed 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
í 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.
í 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 second 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
í S71=0	Auto-select common protocol.
S71=1	TA will use PPP conversion.
S71=2	TA will use V.120

RESULT CODES
Type:	Configuration
Format:	AT [cmds] Qn [cmds]
Description:	Enables modem to send result codes to the DTE.
Command	Function
í Q0	Result codes enabled.
Q1	Result codes disabled.
Q2	Result codes enabled in originate mode only.

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:	Sets the type of switch the TA is connected to.
Command	Function
S50=0	TA is connected to unknown switch type.
S50=1	TA is connected to AT&T 5ESS custom switch.
S50=3	TA is connected to National NI-1 switch.
S50=6	TA is connected to DMS-100 or Siemens EWSD switch.

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 indicates 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 indicates 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
í 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.