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Maintenance Requirement 43
Model 3124 User Manual 4 • Operation and Maintenance
Maintenance Requirement
Tools and Equipment Requirements
table 16 lists required tools and test equipment for the Model 3124 system maintenance.
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.
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 Model 3124 system sites are normally unattended, however, technicians should be dis
-
patched when needed. The Model 3124 system maintenance efforts and monitor the system for alarms during
those on-site operations.
Electrostatic Discharge Protection
The Model 3124 system contains static-sensitive components. Be sure to wear a properly grounded antistatic
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.
Routine Maintenance
Always monitor the Model 3124 system performance at the central office/ remote sites using the SNMP. It
allows users to view the current system status, alarm information and to take the necessary corrective action if a
problem is reported.
Also keep each Model 3124 system site free of dust and other pollutant that could affect system performance.
In addition, be sure to maintain the environment conditions at the central office and at each remote system
site. The ideal operating temperature is about 20ºC. The following is the acceptable operating condition range:
-10ºC to 60ºC and 0% to 95% humidity at 35ºC
Table 16. 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