Card Type	Switched Bandwidth Controller, Fractional T1/PRI
Chip Set	Unidentified
I/O Options	Power, 37-pin DTE ports (2), 25-pin serial ports (2), T1 network interface via RJ-48 (2), modem port via RJ-11, terminal port via RJ-11
T1 Data Rate	1.544Mbps
Line Coding	AMI, AMI/ZCS, B8ZS
Framing	D4, ESF
Data Bus	External

CONNECTIONS
Function	Label	Function	Label
AC power	CN1	T1 network port 1 (RJ-48)	CN6
37-pin DTE port 1	CN2	T1 network port 2 (RJ-48)	CN7
37-pin DTE port 2	CN3	Modem interface (RJ-11)	CN8
25-pin serial port 1	CN4	VT 100 terminal interface (RJ-11)	CN9
25-pin serial port 1	CN5	Power switch	SW1

DATA PORT 1 INTERFACE SELECTION
Setting		JP1/A	JP1/B
»	V.35 interface enabled	Closed	Open
	RS-422 interface enabled	Open	Closed

DATA PORT 2 INTERFACE SELECTION
Setting		JP2/A	JP2/B
»	V.35 interface enabled	Closed	Open
	RS-422 interface enabled	Open	Closed

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
SYNC1	Green	On	Layer 1 active on network line 1
SYNC1	Green	Blinking	Layer 2 active on network line 1
SYNC1	Green	Off	Layer 1 deactivated on network line 1
SYNC2	Green	On	Layer 1 active on network line 2
SYNC2	Green	Blinking	Layer 2 active on network line 2
SYNC2	Green	Off	Layer 1 deactivated on network line 2
ALM1	Red	On	A valid signal has not been detected for 3 seconds, or a link has just been reestablished (10 sec) on network line 1
ALM1	Yellow	On	Out of frame (OOF) error detected on network line 1
ALM1	N/A	Off	No errors detected on network line 1
ALM2	Red	On	A valid signal has not been detected for 3 seconds, or a link has just been reestablished (10 sec) on network line 2
ALM2	Yellow	On	Out of frame (OOF) error detected on network line 2
ALM2	N/A	Off	No errors detected on network line 2
STS	Green	On	Power is on
STS	Green	Off	Power is off; unit failed to properly initialize