
Accessing the Interior
109352-E Rev. A 4-9
Removing and Installing an Air Flow Module
Bay Networks ships an air flow module in each empty FRE/FRE-2 slot in the front
of all Backbone Node routers. Each air flow module redirects cool air to the
adjacent FRE or FRE-2 module.
Figure 4-6 illustrates the location of an air flow module. You must remove air flow
modules when replacing them with FRE or FRE-2 modules. (Refer to Chapter 5
for instructions on replacing FRE or FRE-2 modules.)
Figure 4-6. Air Flow Module Installed in a Hardware Platform
Remove an air flow module as follows:
1. Remove the front bezel.
(Refer to “Removing and Replacing the Front Bezel” earlier in this chapter.)
2. Remove the EMC shield.
(Refer to “Removing and Replacing the EMC Shield” earlier in this chapter.)
3. Remove the board retainer bracket (BLN and BLN-2 only).
Refer to Figure 4-6.
a. Remove the screw at the bottom of the bracket.
A single screw fastens the bottom of the board retainer bracket to the
chassis.
Board Retainer Bracket
(1 Screw)
Air Flow
Module
POWER
RUN
BOOT
DIAG
BACKBONE NODE
VOR jeglicher Intervention Gerat
ABSTELLEN und Netzstecker herauszuziehen!
Anleitungen in Installations-/Instandhaltungshandbuch beachten!
VORSICHT!
HOCHSPANNUNG!
APAGUESE la unidad y desconectese del tomacrriente
ANTES de abrir la unidad.
Veanse las instrucciones del fabricante en el manual de instalacion/servicio
PELIGRO
ALTO TENSION
!
Power unit OFF and disconnect power cord
BEFORE accessing this product.
Refer to your installation/service manual for instructions
WARNING
HIGH ENERGY PRESENT
Debrancher le cordon d’alimentation avant
d’enlever le couvercle.
Voir les instructions du fabricant
ATTENTION
EQUIPEMENT SOUS HAUTE TENSION
RESET
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