Card Type	T1/E1 signal converter
Chipset	Unidentified
Topology	Peer-Peer
Wire Type	Fiber optic cable
T1/E1 Transfer Rate	1.544Mbps/2.048Mbps
T1/E1 Protocol	AMI, HDB3
Frame Type	Unidentified
Data Bus	Proprietary

CONNECTIONS
Function	Label	Function	Label
T1/E1 line in	CN1	Primary fiber optic transmit connector	CN6
T1/E1 line out	CN2	Control port (see pinout below)	CN7
Secondary fiber optic receive connector	CN3	DC power in	CN8
Secondary fiber optic transmit connector	CN4	AC power in	CN9
Primary fiber optic receive connector	CN5	Power switch	SW1

CN7 PINOUT
Function	Pin	Function	Pin
Chassis ground	1	Primary/secondary fiber optic channel indicator signal	14
Not used	2	Not used	15
Not used	3	T1/E1 connection broken relay	16
T1/E1 connection broken signal	4	Not used	17
Not used	5	Not used	18
Not used	6	T1/E1 connection broken relay	19
Signal ground	7	Alarm condition signal	20
Not used	8	Not used	21
Not used	9	Primary/secondary fiber optic channel selection	22
Not used	10	Secondary fiber optic connection broken signal	23
Not used	11	Not used	24
Not used	12	Primary fiber optic connection broken signal	25
Not used	13	Not used

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
Primary fiber optic channel set for short-range operation	SW2	On
Primary fiber optic channel set for long-range operation	SW2	Off
Secondary fiber optic channel set for short-range operation	SW3	On
Secondary fiber optic channel set for long-range operation	SW3	Off
T1/E1 interface set for 100ohm or 120ohm balanced cable	SW4	On
T1/E1 interface set for 75ohm unbalanced cable	SW4	Off

FIBER OPTIC CHANNEL SELECTION
Setting		SW5
»	Channel selected by control port	Position 2
	Primary channel active	Position 1
	Secondary channel active	Position 3

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
LED1	Green	On	AC power source is connected at CN9
LED1	Green	Off	AC power source is not connected at CN9
LED2	Green	On	Backup DC power is connected to CN8
LED2	Green	Off	Backup DC power is not connected to CN8
LED3	Red	On	Internal power supply failed
LED3	Red	Off	Internal power supplies are good
LED4	Green	On	DSU is receiving data
LED4	Green	Off	DSU is not receiving data
LED5	Green	On	DSU is transmitting data
LED5	Green	Off	DSU is not transmitting data
LED6	Red	On	Fiber optic synchronization lost
LED6	Red	Off	Fiber optic synchronization good
LED7	Yellow	On	Primary fiber optic channel in use
LED7	Yellow	Off	Primary fiber optic channel not in use
LED8	Red	On	Primary fiber optic channel receive level less than -39dBm
LED8	Red	Off	Primary fiber optic channel receive level more than -39dBm
LED9	Yellow	On	Secondary fiber optic channel in use
LED9	Yellow	Off	Secondary fiber optic channel not in use
LED10	Red	On	Secondary fiber optic channel receive level less than -39dBm
LED10	Red	Off	Secondary fiber optic channel receive level more than -39dBm