User's Manual

4 Commissioning
Page 33
Output:
All RUs okay.
Go to MU
External error
Check externally connected devices.
Check fibre loss of optical link.
Check optical connectors.
Clean optical connectors.
Check optical output power of corresponding
OTRx at master unit.
ALC alarm: Decrease DL input power of
affected band.
VSWR alarm: Check antenna and cable.
LED status
Proceed to MU to set up the SW
Orange
Yes
Internal Error
Check LEDs at modules.
Change power supply.
Reduce environmental temperature.
Eliminate thermal short circuit.
Disconnect and connect mains.
MU: Change amplifier setting at MU
controller
Red
LED statusOrange
Green
Red
Finished setting
up all RUs?
Green
Spare Module or
spare RU available?
Yes
Contact customer
service
No
Yes
RU status LED
on?
Check LED and power switch
of the PSU modules
Check mains cabling.
Check mains power.
No
No
Replace
Module / RU