Comba Telecom MRU-4500 User Manual page 36

Power Connection
3.5.5 RU CONNECTION
Step 1: Connect the RU OP (optic) port to one of the OP port located on MU FOU front panel.
Step 2: Connect ANT port to a broadband antenna.
Step 3: Connect DC28V port of RU to DC28V port of remote PSU.
Step 4: Connect power cable on AC port with the public power grid (110~220VAC, 6Amp maximum).
Optical fiber port
RF port, to antenna
ENU STATUS : 1-0-0
USER MANUAL FOR COMFLEX-4500 5W
Figure 33: MU Power Connection (Rear Panel)
Local commissioning port
External alarm port
OP EXT_ALM
RS-485
Figure 34: RU Fiber Optical and RF Port Connection
Copyright - refer to title page
DC power port
TX_EXT
LAN
DC 28V
OP PWR
ALM RUN RX_EXT
TEST
ANT
Downlink RF
coupling port
Uplink RF
coupling port
Downlink
output power
test port
LED Indicators
Page 36