Verilink 1544N (CG) Configuration/Installation Guide User Manual download pdf

Front Panel Description

1 Brackets: Use the 2 holes on each bracket to bolt the 1544N to the rack mount kit or wall.

2 Switch SW1: This 7-position configuration switch is detailed on the reverse side of this guide.

3 POWER: This green LED lights whenever power is applied to the 1544N.

4 BPV: This red LED lights (0.1 seconds minimum) for each occurrence of bipolar violations (BPV).

5 ALL 0s: This red LED lights if no signal is detected from the network.

6 AIS: This red LED lights if an unframed all ones signal (alarm indication signal) is detected from the network or DTE.

7 LOOP: This yellow LED lights to indicate that the unit is in the Line Loopback condition.

8 DENSITY: This red LED lights if the ones density of the received data from the DTE is less than 12.5%.

9 SET: This red LED flashes when the set code is transmitted. It lights constantly if the set code is received.

10 RESET: This red LED flashes when the reset code is transmitted. It lights for 5 seconds if the reset code is received.

11 ERROR: This red LED flashes if an error is received during a network test.

12 Test Jacks: These bantam jacks provide access to the T1 line on the DTE side. The jacks allow transmit and receive toward the net-

work, toward the DTE, or monitoring of traffic between the DTE and the network. Refer to the description below.

13 Test Switch: This is a 3-position rocker switch used for performing a network test or a local loopback. Refer to the description below.

T1 CSU

1544

NETWORK

INTERFACE

1234567

POWER

DENSITY

BPV

ALL 0’s

AIS

LOOP

SET

RESET

ERROR

DTE

NTWK

NORMAL

TEST

LOCAL

LOOP

SW1

TRANSPORT

TOP: The top 2 jack access ports break connection to the DTE

and make connection to the CSU in the direction of the network.

MIDDLE: The middle 2 ports are used for monitoring the sig-

nals passing through the CSU (between the DTE and the net-

work).

BOTTOM: The bottom 2 ports break connection to the CSU and

make connection to the DTE.

Receive signal

from the DTE

Transmit signal

to the network

Transmit signal

to the DTE

Receive signal

from the network

Monitor signal

from the network

Monitor signal

from the DTE

NETWORK TEST: When depressed, the CSU loop code is trans-

mitted for 5 seconds.

NORMAL: When moved from NTWK TEST back to NORMAL,

the CSU sends a loop down code. When moved from LOCAL LOOP

back to NORMAL, the local loop back is removed.

LOCAL LOOP: When depressed, the CSU performs a local, bidi-

rectional loop.

DTE NET

NTWK

NORMAL

TEST

LOCAL

LOOP

13128 9 10 11765432

TRANSPORT

1544N D4 CSU

Configuration Guide

Part Number 45-00016

Rev 1.01

Test Jacks (12) Test Switch (13)

1 2

Summary of Contents

Page 1 - 1544N D4 CSU

Front Panel Description 1 Brackets: Use the 2 holes on each bracket to bolt the 1544N to the rack mount kit or wall.2 Switch SW1: This 7-position con

Page 2 - 1544N Rear Panel

TONETWORKFROMNETWORKGROUND-48 VDCPOWER–+FROMDTETODTETB1LBO0 dB7.5 dB15 dBNETWORKDTESwitch SW1 Description (front panel)S1 Sealing Current: OFF is used

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Verilink 1544N (CG) Configuration/Installation Guide User Manual

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Summary of Contents

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