Avaya ARN PROM Component Upgrade User Manual

Installing the ARN PROM Component Upgrade

Part No. 303089 Rev. 00 April 1998

4401 Great America Pa rkw ay 8 Federal S treet Santa Clara, CA 95054 Billerica, MA 01821

and recommendations in this document are believed to be accurate and reliable, but are presented without express or implied warranty. Users must take full re spo nsibility fo r th eir a pplic a tio ns of any products specified in th is d ocume nt . The information in this document is proprietary to Bay Networks, Inc.

Trademarks

Bay Networks is a registered trademarks and Advanced Remote Node, ARN, BayStack, and the Bay Networks logo are trademarks of Bay Networks, Inc.

All other trademarks and registered trademarks are t he property of their respective owners.

Statement of Conditions

In the interest of improving internal design, operational function, and/or reliability, Bay Networks, Inc. reserves the right to make changes to the pr oducts described in this document without notice.

Bay Networks, Inc. does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.

303089 Rev. 00

Replacing a PROM Component

in a BayStack ARN Router

This document describes how to replace programmable read-only memory (PROM) components in a Bay Networks

Removing the ARN Cover

To access the BayStack ARN component tray:

Be sure that power is turned

Unplug the ARN power cord from the wall receptacle.

Danger:

fail to unplug the ARN. Make sure you unplug the ARN before you proceed.

A potential ener gy haz ard e xis ts during the upgr ade pro cedure if you

If present, unplug the redundant power supply cable from the ARN. Remove all console cabling from the back panel. Remove all netwo rk cabling from the front pane l. Loosen the two captive screws that secure the enclosure to the ARN

component tray (Figure 1)

Be sure to loosen these screws all the way.

BayStack™ ARN™ router.

off

, to the 0 position.

303089 Rev. 00

+ 6 hidden pages