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Chassis General Description
Plexus 9000 Planning and Engineering Guide
Issue 4, May 28, 2003
Section 130-120-100
5-12
Telica,
Inc.
P413-AA
02-19-01
T1
protection
bus
T3
protection
radial
connect
1
I/O-1
2
I/O-2
3
I/O-3
4
I/O-4
5
I/O-5
6
I/O-6
7
I/O-7
8
I/O-8
2 0
I/O-16
19
I/O-15
18
I/O-14
17
I/O-13
16
I/O-12
15
I/O-11
14
I/O-10
9
SP/
TMG
A
10
SW
FAB
A
11
I/O-9
12
SW
FAB
B
13
SP/
TMG
B
21
I/O-17
Figure 5.1-7. Protection for 85-3000 Chassis
For chassis 85-3004 with Midplane II and chassis 85-3007 and 85-3008
with Midplane III, the I/O-5 slot and the I/O-13 slot are DS-3 I/O
protection slots if line protection is desired. I/O-5 protects IOM in I/O-1
to I/O-4 and I/O-6 to I/O-8. IOM-13 protects I/O-9 to I/O-12 and I/O-14
to I/O-17. If DS-1 I/O modules are installed, the I/O-7 slot can be used for
DS-1 protection. It the Network Adapters (ANA, PNA or ENA) are used,
the main module is installed in the I/O-8 slot and the protection module is
in the I/O-10 slot. I/O-17 is the protection slot for Voice Server modules.
All other I/O slots can be used for any combination of I/O modules. Refer
to
for the illustration of slot protection. If DS-3 modules are
used, the protection module should be the largest capacity module.