EQUIPMENT MANUAL FOR RD-9120
RD-9120 QE
Copyright - refer to title page
Page 28
ENU Status : 1-0-0
Powering option: -48V connectivity
The DC power cable for -48V is color coded, typically as BLUE for “-48V or Battery” and BLACK for “0V or
Return” connections.
On the PSU is a Combicon connector (plug), please consult the PSU pinout and identify the -48V and 0V
pin and wire the DC power cable to the -48V and Return pin. Two pair of extra connectors exist for -48V
DC input, and these could be left unconnected.
RF signal connection
Connection to donor antenna and mobile antenna is below:
z
Donor antenna cable
→
DT port
z
Mobile antenna cable
→
MT port
Li-ion battery connection
The lithium-ion battery-pack provides back-up supply to the MCU; an in-line connector close to the battery
pack is ‘disconnected’ before shipping. During installation, re-connect the in-line connector to ensure
proper function of the MCU.
Caution: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according
to the instruction.
OMT connection for commission and local management
This cable (R-9122/R9122AC) is supplied with the equipment. It connects between the serial port of the
PC to the ‘X18’ on the distribution board.
Note: temporarily break the Li-ion battery connection before making the OMT connection.
End of section
