2 Functional Description
MF0147A0A
Page 19
Optical Ports
The LC-APC optical connectors are used to send and receive the signals between
the RU and
the Master Unit’s OTRx modules.
The DL optical port
receives downlink signals from the MU OTRx.
The UL optical port
transmits uplink signals to the MU OTRx.
Mains Connector
The RU receives its power through the Mains connector
. The type of connector is
dependent on the RU model. A 4-pin Amphenol connector is used for AC models and
standard DC models. A 7-pin Amphenol connector is used for DC models powered
by a duel cable supply.
Pwr/Ctrl Connector
The Pwr/Ctrl connector
supports an optional fan unit. The RU provides power and
fan speed control to the fan unit and receives alarms from it through this 7-pin Binder
connector.
Alarm connector
The RU has two alarm relay inputs that can be used to monitor and report alarms
from external devices. The Alarm connector
is a 5-pin Binder connector.
Local Port RS-232
The RS-232 port
is standard DB-9 female connector used for external modem
communication with an optional extension unit and for local connection to a laptop
PC.
A
D
G
H
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