Verilink AS4000 (34-00244) Product Manual Manual de usuario descargar pdf (Pagina 17)

Overview

Verilink AS4000 User Manual 1-7

• AUI—An Ethernet LAN port labeled AUI provides a DB-15 pin

AUI connection.

• Term Ports—Two console ports, labeled T

ERM

, provide RJ-11

telco ports for terminal connections.

• Phone Line—An RJ-11 port labeled P

HONE

INE

supports a

modem connection.

Redundant

Power Supplies

The AS4011 can be equipped with dual load-sharing power

supplies. Either supply can operate with a full load. The

redundancy can be implemented with two AC supplies or two DC

supplies. Each power supply module has its own independent AC

and DC inlet.

Timing

Timing is critical to the proper operation of a carrier channel

network. All of the equipment in a point-to-point network must

refer to a single digital master clock. The System Manager

maintains a shelf timing table which designates the current timing

master from one of the designated primary, secondary, or tertiary

sources. The timing table is configured by the user. Choose

different modules within the node as timing controllers.

An AS4000 node must use a common timing source since data is

passed between the modules across the shelf midplane. Certain

application modules (Table 1-2) can be selected as the timing

source. The System Manager monitors the timing source and

displays the new source (as indicated by the shelf timing table) if

the original source fails.

Table 1-2 Application Module Timing capabilities

Application Module Timing Sources

System Manager

• Internal clock

Quad DS-1 Module

• Internal clock

• Network port

• External source

T3 Module

• Internal clock

• Network ports

• External source

Quad DS-1 with xDSL Module

• Internal

• Network ports

Quad Port Sync Data Module

•Port 1

OCU-DP Module

Test Access Module (TAM)

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 209 210

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Verilink AS4000 (34-00244) Product Manual Manual de usuario Pagina 17

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