Comba Telecom Ltd. RS-5180 Manual De Usuario

 

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Comba Telecom 

Edition  

2.0 

Date

 

2001-06 

 

9 of 31 

 

 

There are 4 downlink RF output ports and 4 uplink RF input ports on the front panel of the 

Master Unit. Downlink and uplink are connected with 4 Interface Units through RF cable as 

shown in figure 2.3-1. 

Figure 2.3-1  Master Unit Panel Diagram

 

 

(1)  Interface Unit (RS-5180-F) 

Functions of Interface Unit include: uplink optical and electric conversion, showing the alarm 

signal from Remote Unit and downlink optical dividing output.   

 

1 Interface Unit has 4 couples of uplink optical input /downlink optical output ports to connect 

with 4 Remote Units through optical fiber (figure 2.3-2). 

 

Alarm function:   

1.  Each Interface Unit has a Optical Signal Transmitting Detection module. If no Optical 

signals are sent, the red indicator on the panel will be on.   

2.  There is a Optical signal Receiving Detection module corresponding to each Remote Unit. If 

no Optical signals are received, the correspondent will be off. When any Remote Unit or