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ATM Backplane
All data transmitted between modules in the ATM subsystem passes through the ATM
backplane. Data is switched between ATM media modules in the ATM subsystem by a
6416SW module. 6416SW modules are installed in slot positions 9 and 10 in the ATM
backplane of 10-slot models, and slot positions 9 and 10 and/or 11 and 12 in the ATM
backplane of 17-slot models. These positions are shown in Figure 1-1.
ShuntBus
TriChannel
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
Fan Area
ac Inlets
Controller 2
Controller 1
Ring-Bus
Connectors
Media
Backplane
ATM
Backplane
TriChannel
Connectors
Power
Module
Power
Module
Power
Module
Power
Module
Figure 1-1. ATM Backplane in the 17-slot 3Com ONcore Hub
Two 6416SW modules may be installed in the 17-slot models. This allows for 6416SW
redundancy (see page “ATM Switch/Control Redundancy” on page 1-13).
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