Carrier-access Access Navigator Manual de usuario Pagina 429

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Access Navigator - Release 1.8 August 2003 16-31
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.
T
O 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:
l Standby CONTROLLER ACTIVE/STANDBY indicator is off.
l Standby CONTROLLER POWER indicator lights green.
.
Figure 16-13. Location of Front Panel Controller Status LEDs
Controller ’A’ Indicators Controller ’B’ Indicators
Active
Controller
Power
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