Foxconn Interfacility Link 7870 User Manual

The 7870 IFL is a 10 – 200 MHz IF fiber optic link used primarily in 

short distance, single channel video applications with high input/

output power levels. The 7870 IFL consists of an optical transmitter 

(7870T) which receives signals from satellite modems, video 

modulators, or exciters and transmits them to an optical receiver 

(7870R) via singlemode fiber. 
The 7870T and 7870R modules plug into a 7180M, a 3U chassis and 

power supply, which enables expansion of the system to 

accommodate up to eight Sat-Light™

 modules. Accessories include 

the Model 7001P Power Supply, the Model 2040 1:1 Redundant 

Switch, the Model 2100 Amplifier, and the Model 7050 Serial Optical 

Multiplexer, an asynchronous data transceiver. 
The 7870 IFL transmits all satellite modulation schemes - digital or 

analog. Any FM modulated RF signal is transmitted accurately. The 

RF signal is directly modulated and adds virtually no phase noise to 

the original signal. The direct modulation, along with extremely flat 

amplitude and group delay, guarantees low bit error rate (BER) and 

high signal quality, independent of distance.
LEDs, and back panel monitors, and alarms allow for complete 

system status monitoring and for interfacing with monitor and 

control (M&C) systems. Gain Control at the Receiver sets the RF 

level.