FCD-12 modem/telephone/ISDN Settings and Configuration

Card Type	T1 CSU/DSU
Chip Set	Unidentified
I/O Options	AC power connector, 25-pin DTE/DCE ports (2), 9-pin serial port (RS-232), T1 network interface via 15-pin connector
T1 Transfer Rate	1.544Mbps
T1 Protocol	Transparent, AMI, B7ZS, B8ZS
Frame Type	D4, ESF
Data Bus	External

CONNECTIONS
Function	Label	Function	Label
AC power connector	CN1	CSU board connector	J2
Serial port	CN2	CSU board connector	J3
25-pin DTE/DCE port - channel 2	CN3	CSU board connector	J4
25-pin DTE/DCE port - channel 1	CN4	Power switch	SW2
15-pin T1 port	CN5
Note: Jumpers must be installed on pins 1&2 and 3&4 of connectors J3 & J4 to maintain signal path continuity when the CSU board is removed.

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Debug self test mode disabled	JP2	Pins 1 & 2 closed
	Debug self test mode enabled	JP2	Pins 2 & 3 closed
»	Default password enabled. Password=FCD-12	JP3	Pins 2 & 3 closed
	User password enabled	JP3	Pins 1 & 2 closed
»	Watchdog timer enabled	JP5	Pins 1 & 2 closed
	Watchdog timer disabled	JP5	Pins 2 & 3 closed
»	Signal ground is connected to the frame ground	JP11	Pins 2 & 3 closed
	Signal ground is not connected to the frame ground	JP11	Pins 1 & 2 closed
»	Internal -5V enabled	JP20	Pins 1 & 2 closed
	Grounded to pin 15 in the main link connector (CN5)	JP20	Pins 2 & 3 closed
»	Allows connection of the line controlled by JP20 to pin 15 of main link connector (CN5) for powering external device	JP23	Closed
	Does not allow connection of the line controlled by JP20 to pin 15 of main link connector (CN5) for powering external device	JP23	Open
»	Allows connection of internal +5V, via resistor, to pin 14 of main link connector (CN5) for powering external device	JP24	Closed
	Does not allow connection of internal +5V, via resistor, to pin 14 of main link connector (CN5) for powering external device	JP24	Open

CHANNEL 1 INTERFACE SELECTION
interface		Setting
»	RS-530, X.21, RS-449, RS-422	Interface changer board on J6
	V.35	Interface changer board on J7

CHANNEL 2 INTERFACE SELECTION
interface		Setting
»	RS-530, X.21, RS-449, RS-422	Interface changer board on J8
	V.35	Interface changer board on J9

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
TD1	Unidentified	On	DSU/CSU is detecting pulses from the DTE on channel 1
TD1	Unidentified	Off	DSU/CSU is not detecting pulses from DTE on channel 1
RD1	Unidentified	On	DSU/CSU is receiving pulses from network on channel 1
RD1	Unidentified	Off	DSU/CSU is not receiving pulses from network on channel 1
TD2	Unidentified	On	DSU/CSU is detecting pulses from the DTE on channel 2
TD2	Unidentified	Off	DSU/CSU is not detecting pulses from DTE on channel 2
RD2	Unidentified	On	DSU/CSU is receiving pulses from network on channel 2
RD2	Unidentified	Off	DSU/CSU is not receiving pulses from network on channel 2
RED	Unidentified	On	DSU/CSU is detecting a red alarm condition
RED	Unidentified	Off	DSU/CSU is not detecting a red alarm condition
YEL	Unidentified	On	DSU/CSU is detecting a yellow alarm condition
YEL	Unidentified	Off	DSU/CSU is not detecting a yellow alarm condition
TST	Unidentified	On	DSU or CSU loopback test active
TST	Unidentified	Off	DSU or CSU loopback test not running

CONNECTIONS
Function	Label	Function	Label
Mainboard connector	J5	Mainboard connector	J7
Mainboard connector	J6

T1 OUTPUT LEVEL SELECTION
Net build		Label	Position
»	0dB	SW1	1
	-7.5dB	SW1	2
	-15dB	SW1	3