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ACD-2

RAD DATA COMMUNICATIONS

ACD-2

Card Type

CSU/DSU

NIC Type

DDS

Chip Set

Unidentified

I/O Options

AC power connector, 25-pin connector,

network interface via RJ-48 connector

Wiring Type

RJ-48 120ohm shielded twisted pair

Maximum Data Rate

56Kbps

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

AC power connector

CN1

Network interface via RJ-48 connector

CN3

DTE/DCE serial port (25-pin connector)

CN2

Unidentified

J2C

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Signal ground is connected to the frame ground

JP1

Pins 2 & 3 closed

 

Signal ground is not connected to the frame ground

JP1

Pins 1 & 2 closed

 

CTS forced high; RTS is ignored

SW2/4

On

 

CTS follows RTS

SW2/4

Off

DTE INTERFACE

Function

J1A, J1B

J2A, J2B

J3A, J3B

V.35 interface

Board connected

Open

Open

 

RS-422 interface

Open

Board connected

Open

 

RS-232 interface

Open

Open

Board connected

DATA RATE

Setting

SW2/1

SW2/2

SW2/3

2400bps

On

On

On

4800bps

Off

On

On

9600bps

On

Off

On

19.2Kbps

Off

Off

On

56.0Kbps

On

On

Off

TEST SELECTOR

Function

Label

Position

Digital loopback initiated

SW1

1

Normal operation. Loopback not activated

SW1

2

Activates local analog loopback

SW1

3

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

RTS

Yellow

On

RTS signal is high

RTS

Yellow

Off

RTS signal is low

CTS

Yellow

On

CTS signal is high

CTS

Yellow

Off

CTS signal is low

DCD

Yellow

On

DCD signal is high

DCD

Yellow

Off

DCD signal is low

TD

Yellow

On

Data is being transmitted by local DTE

TD

Yellow

Off

Data is not being transmitted by local DTE

RD

Yellow

On

Data is being received from remote DTE

RD

Yellow

Off

Data is not being received from remote DTE

ALM

Red

On

OOS or OOF alarm condition detected on network

ALM

Red

Off

OOS or OOF alarm condition not detected on network

TST

Red

On

Device is conducting a test

TST

Red

Off

Device is not conducting a test