IMPACT (3C870, 3C875) modem/telephone/ISDN Settings and Configuration

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 interface		CN1		DC power in		CN4
Serial port		CN2		Power switch		SW1
Analog adapter		CN3

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
B2	Green	On	Data call connected on B2 channel
B2	Yellow	On	Voice call connected on B2 channel
B2	Green	Blinking	TA is dialing data call on B2 channel
B2	Yellow	Blinking	TA is dialing voice call on B2 channel
B2	N/A	Off	B2 channel is not connected
B1	Green	On	Data call connected on B1 channel
B1	Yellow	On	Voice call connected on B1 channel
B1	Green	Blinking	TA is dialing data call on B1 channel
B1	Yellow	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
D	Yellow	On	Signal is not synchronized or ISDN line is not connected
D	Yellow	Blinking	Signal is synchronized but D-channel protocols not established
D	Yellow	Off	Signal is synchronized
TEST	Yellow	On	TA failed last test
TEST	Yellow	Blinking	TA is executing test
TEST	Yellow	Off	TA is not executing test
POWER	Yellow	On	Power is on
POWER	Yellow	Off	Power is off

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, A/

A, D, E, H, O, V, Z

&D, &F, &W

Extended AT Commands

\Q, \T

S-Registers

S0

Note: See MHI help file for complete information.

UNIDENTIFIED COMMANDS
Command	Default
S63	Unidentified
S64	Unidentified

CALL TYPE
Type:	Register
Format:	AT [cmds] S61=n [cmds]
Description:	Selects the type of call the TA will make.
Command	Function
í S61=0	TA will dial according to dial modifiers.
S61=1	TA will place Switched 56 call.
S61=2	TA will place ISDN call.
S61=3	TA will place modem call.
S61=4	TA will place voice call.
S61=5	TA will use third-party call control.