Chapter 2 - hardware description – Polycom DOC2230A User Manual
Page 18
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