Cabletron Systems 9A426-01, Руководство пользователя

Страница: 20 / 50

Preparing and Installing the 9A426-01 Module
2-4
Look-Up Engine
The 9A426-01 Module is shipped with a look-up engine. The look-up engine is
located at the front section of the module as shown in Figure 2-2. The Look-Up
Engine stores MAC Address/Virtual Channel Pairings.
To increase the capacity of the front panel port’s Look-Up Engine, install the
Look-Up Engine Upgrade Kit (LUE-UGK). Installation instructions are included
in each upgrade kit.
SRAM SIMM
The front panel port on the 9A426-01 Module is equipped with two megabytes of
Static Random Access Memory(SRAM).
To increase the SRAM of the front panel port, install the SRAM SIMM from the
ATM Memory Upgrade Kit (ATM-MEM-UGK) in the port’s corresponding SIMM
socket.
The SRAM SIMM fits into the SIMM socket located at the front section of the
module as shown in Figure 2-2. Installation instructions are included in the
upgrade kit.
APIMs
The preparation of the 9A426-01 Module includes the installation of at least one
ATM Port Interface Module (APIM) in the module’s front panel port (a second
APIM can be installed for redundancy). The module is shipped with no installed
APIMs. You customize the module to your particular need by selecting from a
variety of APIMs, and then installing the selected APIM(s) in the module.
Figure 2-2 shows two APIMs installed in a 9A426-01 Module. Installation
instructions are provided in the following section.
Installing an APIM in the 9A426-01 Module
To install an APIM in the 9A426-01 Module, you must:
• Unpack the APIM.
• Remove the 9A426-01 Module’s ATM-Port Retaining Plate.
• Insert the APIM in the 9A426-01 Module.
• Attach the 9A426-01 Module’s ATM-Port Retaining Plate.
Throughout each of these procedures, you must never expose the module’s
components to Electrostatic Discharge. Make sure you have attached the
module’s disposable grounding strap to your wrist and always place the module
on a non-conductive surface.