User's Manual

PMP320HDW2v1 3-45
Preliminary
JUL
2010
Power Faults Chapter 3: CMM4 Hardware Installation
Table 3-2 LED Indicators for the CMM4
LED Color Item
Red
P
ower
Amber Default
Green GPS Master
Red Ethernet Switch P ower
Amber Link
Green Activity
Amber Sync OK
CAUT I ON
Surge suppressors should be installed on any cables where they enter a building to
reduce the possibility of over voltages or over currents damaging any equipment in
the building.
The following equipment, mounted outside of a communications hut or building at the point
where the cables penetrate the building, is recommended:
• Motorola 600S SD surge suppressors for Ethernet cables
• Motorola 200S S surge suppressors for DC cables
• A P olyPhaser DGXZ+06NFNF - A surge suppressor for the coaxial cable from the GPS
antenna
Power Faults
If excessive current is drawn on a port, the analog circuitry reports a P oE fault. The system then
turns the port power off . The power will be restored when the fault is removed. The following
illustration shows the port status screen with a power fault on port 1.