ADTRAN

TSU LT

Card Type

T1 CSU/DSU

Chip Set

Unidentified

I/O Options

V.35 DTE port, test jack - in, test jack - out, test jack - monitor ,

RJ-48 control ports (2), T1 network interface via RJ-48, power

T1 Data Rate

1.544Mbps

Line Coding

AMI, B8ZS

Framing

D4, ESF

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

T1 network port (RJ-48)

CN1

Control port - chain out (RJ-48)

CN6

Test jack - in

CN2

V.35 DTE port

CN7

Test jack - out

CN3

Power

CN8

Test jack - monitor

CN4

Power switch

SW1

Control port - chain in (RJ-48)

CN5

   

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Unidentified

On

Power is on

PWR

Unidentified

Off

Power is off

ERR

Unidentified

On

Error has been detected on network

ERR

Unidentified

Off

Error has not been detected on network

ALM

Unidentified

On

Open loop, loss of frame synchronization, dial backup mode, or problem with dial backup line alarm condition detected on network

ALM

Unidentified

Off

Open loop, loss of frame synchronization, dial backup mode, or problem with dial backup line alarm condition not detected on network

TST

Unidentified

On

Device is conducting a test

TST

Unidentified

Off

Device is not conducting a test

TD

Unidentified

On

Data is being transmitting from DTE

TD

Unidentified

Off

Data is not being transmitting from DTE

RD

Unidentified

On

Data is being received from network

RD

Unidentified

Off

Data is not being received from network

RS

Unidentified

On

RTS signal high

RS

Unidentified

Off

RTS signal low

CS

Unidentified

On

CTS signal high

CS

Unidentified

Off

CTS signal low