3Com 6416SW manual ATM Backplane, Atm

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.

						Fan Area
1	2	3	4	5	6	7	8	9	10 11 12 13 14 15 16 17
ATM
Backplane
							ShuntBus			Ring-Bus
										Connectors
Media
Backplane
							TriChannel			TriChannel
										Connectors
1	2	3	4	5	6	7	8	9	10 11 12 13 14 15 16 17
			Power			Power			Power	Power
			Module			Module			Module	Module
										Controller 2
										Controller 1

ac Inlets

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).

1-3