VERSATEK VX-MD4024 - Introduction to Troubleshooting; Resolving Problems Indicated through Leds; Table 3-1 Problems Indicated by Leds

3 — Troubleshooting the VX-MD4024
33 / 44
3.1 Introduction to Troubleshooting
This chapter describes instructions for troubleshooting the VX-MD4024. These procedures may
require the presence of technicians at remote VX-MD4024 system sites and an additional operator
at PC to monitor system alarms by console or EMS during maintenance.
3.2 Resolving Problems Indicated Through LEDs
This section describes what to do to solve problems indicated by LEDs on the system front panel.
Table 3-1 Problems Indicated by LEDs
LED
Activity
Problem
Action
SYS
Not lit even
though DSLAM
is powered up
There is a power up problem
with the system.
Troubleshoot the DSLAM for
power up problems; see section
3.4.
Red
Self-test failed. There is a
functional problem with the
system.
Replace the VX-MD4024 .
ALM
Red
Major alarm set
See section 3.3.
Red-Flash
Major and Minor alarm set
See section 3.3.
Yellow
Minor alarm set
See section 3.3.
GBE1/GBE2
(If SFP
interface is
activated)
Not lit even
though DSLAM
is powered up
No link
Troubleshoot the DSLAM for
fiber optics problems; see section
3.4.