Card Type	T1/E1 interface converter
Chipset	Unidentified
Wire Type	Fiber optic cable
T1/E1 Transfer Rate	1.544Mbps/2.048Mbps
T1/E1 Protocol	B8ZS, HDB3
Frame Type	Unidentified
Data Bus	N/A

CONNECTIONS
Function	Label	Function	Label
Unbalanced T1 signal in via coaxial cable connector	CN1	T1 fiber optic receive ST connector	CN4
Unbalanced T1 signal out via coaxial cable connector	CN2	T1 fiber optic transmit ST connector	CN5
Balanced T1 signal in/out via DB-15 connector	CN3	DC power in	CN6
Note:Either connector CN3 or connectors CN1 and CN2 may be used, but not both.

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Signal ground connected to chassis ground	JP1	Pins 1 & 2 closed
	Signal ground not connected to chassis ground	JP1	Pins 2 & 3 closed
»	CN1 shield not connected to chassis ground	SW1	On
	CN1 shield connected to chassis ground	SW1	Off
»	CN2 shield not connected to chassis ground	SW2	On
	CN2 shield connected to chassis ground	SW2	Off
»	Device will transmit All Ones Signal when major alarm is detected	SW3	On
	Device will transmit nothing when major alarm is detected	SW3	Off

ELECTRICAL CABLE TYPE SELECTION
Setting		JP2/A	JP2/B	JP2/C	JP2/D	JP2/E	JP2/F
	Unbalanced 75 ohm	Pins 3 & 4	Pins 3 & 4	Pins 3 & 4	Pins 3 & 4	Pins 3 & 4	Pins 3 & 4
	Balanced 100 ohm	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2
»	Balanced 120 ohm	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3
Note:Pins designated are in closed position.

TEST MODE
Setting		SW4
»	Normal operation	Position 2
	Local loopback test	Position 1
	Remote loopback test	Position 3

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Green	On	Power is on
PWR	Green	Off	Power is off
LOC	Yellow	On	Device is in local loopback test mode
LOC	Yellow	Off	Device is not in local loopback test mode
REM	Yellow	On	Device is in remote loopback test mode
REM	Yellow	Off	Device is not in remote loopback test mode
LOW	Red	On	Electrical input signal is below valid signal level
LOW	Red	Off	Electrical input signal is within valid signal levels
AIS1	Yellow	On	All Ones Signal received on electrical interface
AIS1	Yellow	Off	All Ones Signal not received on electrical interface
ERR	Red	On	Bit Error Rate of optical interface is 10 -6 or worse
ERR	Red	Off	Bit Error Rate of optical interface is better than 10 -6
AIS2	Yellow	On	All Ones Signal received on fiber optic interface
AIS2	Yellow	Off	All Ones Signal not received on fiber optic interface