The major difference between the

ATM

backplane and

other

ONcore

hub

LAN

 

backplanes is that each ATM

media module has a dedicated set of connections to the

6416SW module. This set of

dedicated

connections

constitutes

a

wiring

star topology

in

which ATM media modules are

at

the

tips

of

the

star

and

the

6416SW

module is at

the

center. The wiring topology

used

in

the

ATM

backplane

is

shown

in

Figure 1-2.

 

Fan Area

1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17

Slot Positions for 6416SW Modules:

9 to 10 and 11 to 12

Slot Positions for ATM Media Modules: 1 to 8 and 12 to 17

ATM Bus Linking 6416SW Modules

6416SW = ATM Switch/Control

Figure 1-2. Wiring Star Topology in ATM Backplane (17-slot model)

1-4 ONcore ATM Switch/Control Module: Installation and User's Guide

Page 30
Image 30
3Com 6416SW manual Wiring Star Topology in ATM Backplane 17-slot model