Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Guida All'Installazione

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Optical Receiver Module 
OL-29643-02 
47 
 
receiver operation, a digital signal is generated by the status monitor or local control 
module to switch between the primary and redundant optical receiver module in the 
forward configuration module. 
There are two types of the receiver module: Standard Optical Receiver and Low 
Input Optical Receiver. 
 
The optical input range for the low input receiver is 0.25 mV to 0.79 mV (-6 dBm to 
-1 dBm). Compared to the standard optical receiver, the low input optical receiver 
can work with lower optical input level, in order to support fiber deep applications.   
The illustration below is Low Input Receiver RF Output Level and Transmitter OMI: 
Rx Switch in 0 dB Setting: