IBM 8265 Nways ATM Campus Switch - IBM Redbooks

Chapter 2. IBM 8265 Modules
2.1 Controller Module
This chapter describes the modules and relevant daughter cards that are
available for the IBM 8265 ATM switch. It also shows the backward compatibility
of the IBM 8265 ATM switch with certain IBM 8260 ATM modules, highlighting the
technical criteria that is required for these modules to operate within the IBM
8265 environment. Indication is given as to where microcode and picocode can
be obtained to perform these code updates to the IBM 8260 ATM modules.
It is mandatory to install a controller module within an IBM 8265 ATM switch.
The controller module manages the IBM 8265′s power supply and cooling
subsystems. It performs the following functions:
• Generates clocks and distributes them across the backplane
• Monitors the installed power supplies
• Provides Intelligent power management
• Environmental control, including monitoring of fan-tray operations and
temperature sensing
• Inventory management
Figure 6. Controller Module
The controller module resides in its own slot in the two slot controller module
emplacement, which is located at the bottom right-hand side of the 8265 chassis.
These slots can be referred to as slots 18 and 19 of the IBM 8265 ATM switch.
This allows all of the 17 ATM media module slots in the 8265 chassis to be
utilized by the ATM media modules. As is the case with all modules installed in
the 8265, the controller module is hot-swappable and field-replacable.
© Copyright IBM Corp. 1998 13