User's Manual
RS- 5180CDMA800/1900 Dual Band Indoor Fiber Optic
Repeater
Comba Telecom
Edition
2.0
Date
2001-06 26 of 31
4.2. Remote Unit
4.2.1 Connection with RF Cable and Optical Fiber
figure 3.2-1: Re mote Unit Installation
Schematic Diagram
.
Remote Unit has 4 antenna ports at the top of cabinet for antenna
connection. Connect 50
standard load for any additional port; downlink
fiber- optic input port port (left) and uplink fiber-optic output port port (right)
are at the bottom of cabinet, fiber-optic connector is SC fiber-optic adapter.
4.2.2 Check of Input and Output Optical Power
Measure the receiving power of downlink optical fiber with optical power
meter. The value should be around -5dBm. Actual loss can be taken into
account according to the length of cable connecting master unit and Remote
Unit. Measure the output power of uplink optical fiber with optical power meter
and the value should be around 0-3dBm.