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Chapter 2 - hardware description – Polycom DOC2230A User Manual

Page 18

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Chapter 2 - Hardware Description

2-4

Figure 2-3 shows the front panel of the MGC-100 NEBS Standard. The front
panel, as in the MGC-100, provides access to the Main Control Module, the
Functional Modules, and the Power Supply Modules. Status LEDs on the
Main Control Module, Functional Modules, and Power Supply Modules
indicate the status of the system.

.

Figure 2-3: MGC-100 NEBS Standard Front Panel

Power Supply Module Cover

Floppy Disk Drive

COM Port

Power

L1

L2

L3

Critical

Major

Minor

L0

CONT

Line A

Line B

Stby

Fail

Active

Stby

Fail

Active

Stby

Fail

Active

Stby

Fail

Active

Stby

Stby

Fail

Fail

Active

Active

Stby

Fail

Active

Stby

Stby

Fail

Fail

Active

Active

Stby

Fail

Active

Stby

Stby

Fail

Fail

Active

Active

Stby

Fail

Active

Stby

Fail

Active

Stby

Fail

Active

NET-E1

MUX

MUX

DATA

DATA

VIDEO

VIDEO

VIDEO

AUDIO

VIDEO

AUDIO

Stby

Fail

Active

AUDIO

AUDIO

Line 6

Line 7

Line 8

Line 3

Line 4

Line 5

Line 1

Line 2

Line 6

Line 7

Line 8

Line 3

Line 4

Line 5

Line 1

Line 2

Line 6

Line 7

Line 8

Line 3

Line 4

Line 5

Line 1

Line 2

NET-8

NET-8

NET-8

Ejectors

LEDs

Main
Control
Module

Functional Modules

MGC-100

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