Teledex Y Series - Manual (Page 24)

24 www.teledex.com Y SERIES EXP212, EXP224, AND EXP248 USER GUIDE
2.1 Maintenance Requirement
2.1.1 TOOLS AND EQUIPMENT
REQUIREMENTS
Table 2.1 lists required tools and test equipment
for EXP212, EXP224, and EXP248 system
maintenance.
Table 2.1 Required Installation Tools and
Materials
Item
Required
Purpose
Anti-static
wrist strap Protect the system from
electrostatic discharge damage
Hand tool Screwdrivers for equipment
removal and replacement
Wire cutter/
stripper Prepare wires for electrical
connections
Wire-wrap
gun and bit Removing and replacing the
system interconnection wires
Wires System interconnections to
external facilities
VF
transmission
and
signaling
test sets Testing faulty POTS
Fuse and
alarm panel For protection and simplifying
troubleshooting
2.1.2 SYSTEM SPARES
Always keep spares for the DSLAM at each
central office for replacement purposes. During
the system trouble-shooting procedures, certain
cards at the central office and/or remote site will
be required to be replaced.
2.1.3 DISPATCHING MAINTENANCE
PERSONNEL
Some procedures in this manual involve end-to-
end system testing, for which technicians are
needed at each remote site. The remote EXP212,
EXP224, and EXP248 system sites are normally
unattended, however, technicians should be
dispatched when needed. The EXP212, EXP224,
and EXP248 system maintenance efforts and
monitor the system for alarms during those on-
site operations.
2.1.4 ELECTROSTATIC DISCHARGE
PROTECTION
The EXP212, EXP224, and EXP248 system
contains static-sensitive components. Be sure to
wear a properly grounded anti-static wrist strap
when handling them. Also, when removing and
replacing a card, hold it either by its front ejector
handle or by its edges.
Do not touch its rear connector contacts, which
must remain free of contaminants.
2.1.5 ROUTINE MAINTENANCE
Always monitor the EXP212, EXP224, and EXP248
system performance at the central office/remote
sites using the SNMP. It allows the user to view
the current system status, alarm information,
and to take the necessary corrective action if a
problem is reported.
2—Operating and Maintaining the EXP212,
EXP224, or EXP248