Carrier Access Access Navigator user manual Precautions, Tools and Materials Required

Maintenance Procedures

Precautions

Precautions

WARNING! THE ACCESS NAVIGATOR CONTAINS CIRCUIT CARDS AND COMPO- NENTS THAT ARE SUBJECT TO DAMAGE BY ELECTROSTATIC DISCHARGE (ESD). ALWAYS FOLLOW THE STATIC-SENSITIVEEQUIPMENT HANDLING PROCEDURES ON page 6-3WHEN OPENING EQUIPMENT COVERS AND HANDLING PLUG-IN CIRCUIT CARDS.

CAUTION! SERVICE DISRUPTIONS WILL OCCUR IF THE ACTIVE CONTROLLER CARD IS REMOVED WITHOUT AN OPERATIONAL STANDBY CONTROLLER. TO AVOID SERVICE DISRUPTIONS, ALWAYS REPLACE 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, THE NEW CONTROLLER SHOULD BE INSTALLED AND SWITCHED TO ACTIVE MODE BEFORE REMOVING THE OLD CONTROLLER.

SERVICE DISRUPTIONS MAY OCCUR IF TWO CONTROLLER CARDS ARE INSTALLED WITH INCOMPATIBLE SOFTWARE, SUCH AS ONE DCS CARD AND ONE GR-303CARD. NO DISRUPTIONS WILL OCCUR UNTIL THE INCOMPATIBLE CARD IS SWITCHED INTO THE ACTIVE MODE, ALLOWING TIME TO SAFELY REMOVE THE INCOMPATIBLE CARD. IF YOU WISH TO INSTALL A CONTROLLER THAT IS NOT COMPATIBLE, VERIFY PROVISIONING WITH OFFICE RECORDS, BOTH BEFORE AND AFTER INSTALLATION, TO ENSURE THAT NO CIRCUITS HAVE BEEN ALTERED.

Tools and Materials Required

1.Obtain the following tools and materials.

￿Office records for installation site

￿Screwdrivers, slotted

￿Grounding wrist strap

￿Controller card

￿User name and password (if required)

2.Unpack and inspect Controller card for damage.

￿Do not remove circuit cards from anti-static wrappers without following proper anti-static procedures.

￿Verify that equipment to be installed agrees with office records.

16-4 August 2003 Access Navigator - Release 1.8