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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
About This Book
Page xxivSafety Precautions
run the tests are given and a brief description of each test. Explanations of
error codes associated with each test are given, as are specific
maintenance procedures to be used to resolve each problem.
Each MO is described in a separate section of Chapter 10, ‘‘
Maintenance Object
Repair Procedures’’. The individual sections are labeled with the name of the MO
exactly as the name appears in the Alarm Log; for example, MAINT (for
Maintenance circuit pack). The only exception is the MO name for Common Port
Circuit Pack maintenance which is XXX-BD. The XXX-BD section contains a set of
common tests used by certain circuit packs listed in the section. The common
portion of these circuit packs is the generic hardware that interfaces with the
Time Division Multiplex (TDM) Bus.
Lucent Technologies listens carefully to its readers. The organization of this book
is a direct result of user feedback. Your feedback is important. Use the feedback
form at the back of this book to send your comments to Lucent Technologies.
Safety Precautions
When performing maintenance or translation procedures on the system, users
must observe certain precautions. Observe all caution, warning, and danger
statements to prevent loss of service, possible equipment damage, and possible
personal injury. In addition, the following precautions regarding electromagnetic
interference (EMI) and static electricity must be observed:
Electromagnetic Interference
This equipment generates, uses, and can radiate radio frequency energy.
Electromagnetic fields radiating from the switch may cause noise in the
customer’s equipment. If the equipment is not installed and used in accordance
with the instruction book, radio 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 discharge (ESD), always attach wrist
grounding straps before working on switch components or handling circuit
packs.
!
CAUTION:
Electrostatic discharge can damage or destroy circuit packs containing
integrated circuits (ICs).