METROLAN PHYSICAL
5
76-02-059A
3 METROLAN PHYSICAL
The purpose of this document is to give a user, new to MetroLAN, a simple overview of how
to configure the various options to give a basic level of operation. This document should be
used in conjunction with the User Manual.
3.1 Front Panel
The front panel of the MetroLAN is shown in schematic form below.
Figure 3.1 MetroLAN front panel
The MetroLAN provides you with essential information through a series of LED’s on the front
panel. The colour of some of these LED’s will depend on the type of data that is being handled
at the time, and these are described in Figure 3.2 below. Note that the LINE port label refers
to the SDH port, whilst a Tributary fault may relate to any E1/T1 line, E3/DS-3 line, LAN or a
VC fault.
Figure 3.2 Front panel alarms
LED
Colour
Meaning
Power
Red
Power is being received.
Line SDH
Line Major
Red
LOS, LOF, LOC, SD or OOF alarm is present
Line Minor
Yellow
AIS, FERF or TIM alarm is present.
Tributary
Fault
Fault
Red
LOS (Major) or AIS (MInor) fault on any E1/T1or E3/DS-3 line
LKDN (Link Down) fault on any LAN port
VC fault
Test
Red
Local loop test in progress on SDH or any E1/T1 or
E3/DS3 port
Unlit
No test in progress
POWER
TRIBUTARY
FAULT
TEST
LINE
MAJOR
LINE
MINOR
Summary of Contents for MetroLAN-1000
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