PARADYNE CORPORATION

COMSPHERE 3550

Card Type

DSU

Chip Set

Unidentified

I/O Options

CC/DC via RJ-11 connector, digital network interface via RJ-48,

analog network interface via RJ-45, power jack, DTE ports (2)

Maximum Transfer Rate

64Kbps

Data Modulation Protocol

V.32bis

Wiring Type

RJ-48 T1

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

Power Jack

CN1

CC in/DC out via RJ-11 connector

CN4

DDS network interface via RJ-48 connector

CN2

DTE port (V.35 connector)

CN5

DBM network interface via RJ-45 connector

CN3

DTE port (25-pin serial connector)

CN6

USER CONFIGURABLE SETTINGS

Setting

Label

Position

»

Permissive transmit output level of -9dBm

S1/1

On

 

Programmable transmit output level between -12dBm and 0dBm

S1/1

Off

»

Frame ground connected to signal ground through 100ohm resistor

S1/2

Off

 

Frame ground connected to signal ground

S1/2

On

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

OK

Green

On

DSU power is on

OK

Green

Blinking

DSU is receiving a message from NetWare Management System

OK

Green

Off

DSU power is off or detecting a system failure

ALM

Red

Blinking slow

Out-of-service or out-of -frame messages received from network

ALM

Red

Blinking fast

DSU not receiving signals from network

TST

Yellow

On

DSU is executing a test

TST

Yellow

Off

DSU is not executing a test

TST

Yellow

Blinking

DSU is setting up or taking down a test

Dial

Yellow

Blinking fast

Call established in progress

Dial

Yellow

Blinking slow

Call established in standby mode

Dial

Yellow

On

Backup call established and active

Dial

Yellow

Off

Call not established

TXD

Green

On

Receiving all zeros from the DTE

TXD

Green

Off

Receiving all ones from the DTE

TXD

Green

Blinking

Data is being transferred

RXD

Green

On

Transmitting all zeros from the DTE

RXD

Green

Off

Transmitting all ones from the DTE

RXD

Green

Blinking

Data is being transferred

RTS

Green

On

RTS signal is high

RTS

Green

Off

RTS signal is low

CTS

Green

On

CTS signal is high

CTS

Green

Off

CTS signal is low

DSR

Green

On

DSR signal is high

DSR

Green

Off

DSR signal is low

LSD

Green

On

LSD signal is high

LSD

Green

Off

LSD signal is low