Maintenance Procedures

Install SIMM on Controller Card

CAUTION! SERVICE DISRUPTIONS WILL OCCUR IF THE ACTIVE CONTROLLER CARD IS REMOVED WITHOUT AN OPERATIONAL STANDBY CONTROLLER. TO AVOID SERVICE DISRUPTIONS, ALWAYS REMOVE THE STANDBY CONTROLLER FIRST. IN A PROTECTED SYSTEM WITH TWO CONTROLLER CARDS, THE ACTIVE CONTROLLER SHOULD BE SWITCHED TO STANDBY MODE BEFORE REMOVING. IN AN UNPROTECTED SYSTEM WITH ONLY ONE CONTROLLER CARD, SIMM INSTALLATION WILL DISRUPT SERVICE BUT WILL NOT AFFECT STORED PROVISIONING DATA.

TO AVOID SERVICE DISRUPTIONS, ALWAYS INSTALL THE SIMM ON THE CONTROLLER THAT IS IN STANDBY (NOT ACTIVE). THEN SWITCH THE UPGRADED CONTROLLER TO ACTIVE MODE BEFORE INSTALLING SIMM ON OTHER CONTROLLER.

3.Visually verify which Controller card (A or B) is in standby (see Figure 16-3). The LED indicators on the standby Controller should be as follows:

￿Standby CONTROLLER ACTIVE/STANDBY indicator is off.

￿Standby CONTROLLER POWER indicator lights green.

.

Power

Active

Controller

Controller ’A’ Indicators

Controller ’B’ Indicators

Figure 16-13. Location of Front Panel Controller Status LEDs

Access Navigator - Release 1.8

August 2003

16-31

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Image 429
Carrier Access Access Navigator user manual Standby Controller ACTIVE/STANDBY indicator is off