HwMuseum | Index

ADTRAN

NT1 TYPE 400

Card Type

ISDN T1

Chip Set

Unidentified

I/O Options

ST local bus interface via RJ-45 connectors (2), power

U T1 network interface via RJ-45 connector

T1 Data Rate

1.544Mbps

ISDN D-channel Protocol

X.25

Line Coding

2B1Q

Framing

Unidentified

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

     

U T1 network interface via (RJ-45)

CN1

S/T ISDN local bus interface (RJ-45)

CN3

     

S/T ISDN local bus interface (RJ-45)

CN2

 

 

     

USER CONFIGURABLE SETTINGS

Function

Label

Position

í Factory configured - do not alter

SW1/1

Unidentified

Extended passive bus cinfiguration

SW1/2

On

Short passive bus configuration

SW1/2

Off

LOCAL BUS TERMINATION

Function

SW1/3

SW1/4

SW1/5

SW1/6

50 Ohm local bus termination enabled

Off

Off

On

On

100 Ohm local bus termination enabled

On

On

Off

Off

Local bus termination disabled

Off

Off

Off

Off

 

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

RDY

Green

On

Network is ready to place a call

RDY

Green

Blinking (fast)

U interface not ready or performing a test

RDY

Green

Blinking (slow)

S/T interface not ready or performing a test

RDY

Green

Off

Network not functioning or unit is not receiving power

ERR

Red

On

Error condition detected on network or local bus

ERR

Red

Off

Error condition not detected

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

Note: If ERR indicator is illuminated, pulse rate of RDY indicator will determine error source. If RDY indicator is blinking, and ERR indicator is off, then a test is in progress.