DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
About This Book
xviiiSafety Precautions
Safety Precautions
When performing maintenance or translation procedures on the sys tem, users
must observe certain p recautions. Observe all cauti on, warning, and da nger
admonishments to prevent loss of servic e, possible eq uipment damage, an d
possible personal injur y. In addition, the following prec autions regarding
electromagnetic interferenc e (EMI) and static electric ity must be observed :

Electromagnetic Interference

This equipment generates, uses, and can radiate radio freq uency energy.
Electromagnetic fields rad iating from the switch may cause noise in the
customer’s equipment. If th e equipment is not installed and used in acc ordance
with the instruction book, rad io interference may result.
!WARNING:
To maintain the EMI integrity of the system, maintenance personnel must
ensure that all cabinet panels, covers, and so forth, are firmly secured
before leaving the customer ’s premises.

Static Electricity

To prevent or reduce electrostatic disc harge (ESD), maintenance personnel must
always attach wrist grounding straps before working on switch components or
handling circuit packs.
!CAUTION:
Electrostatic discharg e can damage or d estroy circuit pac ks containing
integrated circ uits (ICs).
The ESD wrist strap, cable assembly, and spare fuses are p acked in a p lastic
bag and plac ed in the top of the system c abinet. Use the ESD wrist strap when
troubleshooting, perfor ming maintenance, or handl ing any circuit p acks
associated with the system.
Security Issues
A number of matters conce rning maintenance are affected by security issues.
For details, be sure to consult the
BCS Prod uct s Sec urity Hand boo k
,
555-025-600.
!CAUTION:
Login security is an attribute of the DEFINITY
®
Enterprise Communications
Server (ECS) Release 8.2 software.