Arranging System 5000 Modules In The Chassis; Power Requirements; Connections To A Ppx Backplane; Split Backplane Rings - Bay Networks 5380 User Manual

Using Model 5380 Ethernet and Model 5580 Token Ring Routers

Arranging System 5000 Modules in the Chassis

You can install a Model 5380 Ethernet Router or Model 5580 Token Ring Router
in any Model 5000 or Model 5005 slot. The four onboard router interfaces on each
router module provide LAN access to devices connected to System 5000 host
modules installed in the same chassis. For additional LAN and WAN access,
install the available net modules described in "Router Interfaces" in Chapter 1,
"Overview of Model 5380 and Model 5580 Routers."
Caution: The tolerances in slot 14 are very close. Be very careful when you
install a router module in this slot.

Power Requirements

You must have 100 watts of power available for each router module installed in a
Model 5000 or Model 5005 chassis. Be sure to check the power consumption
specifications for the chassis and the other modules already installed.

Connections to a PPX Backplane

For routers to communicate and function as one router installed in the Model 5000
chassis, you must have a PPX backplane installed on the chassis. If your Model
5000 chassis does not contain a PPX backplane, you can order an ATM backplane
upgrade kit which contains a PPX backplane. Refer to "Model 5000AH Slot
Assignments" later in this chapter for more information about router placement in
a chassis with a PPX backplane.

Split Backplane Rings

If you have split backplane rings, slots to the left and slots to the right of the split
have access to different rings. As a result, if you want to connect a Model 5580
Token Ring Router and other token ring modules to the same split backplane ring,
you must group all of the modules to either the left or the right side of the split.
Refer to Chapter 3, "Initializing and Setting Up the Routers" for more information
about splitting rings.
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