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FCD-12

RAD DATA COMMUNICATIONS

FCD-12

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

CSU BOARD

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