User's Manual

Remote Fiber Node (RFN) User Manual
©Copyright 2011, Fiber-Span Page 11 of 38
Instrument operates in the UL 1710-1755, DL 2110-2155 MHz region.
Figure 5 displays Plug-in Cell, PCS, and AWS RF connections in rear which are the same for all
three bands.
Figure 5
6.4. 700
The 700 Plug-in is a bi-directional service module comprising of uplink and downlink circuitry.
Internally it houses all the devices that conditions, filters and amplifies the specified frequency
band while rejecting the adjacent family bands operating within the chassis.
Although it accommodates both paths, circuitry is kept shielded providing 120 dB of isolation
between them which prevents any RF crossover
Circuitry is similar in the UL and DL paths, with uplink RF Gain at 40 dB while the downlink
has more gain, with the addition of a high power amplifier module that provides 40 dB to drive
the DAS for a total of 70 dB from end to end. In both directions, inserted between the pre-
amplifier and mid-amplifier is an attenuator with a 31 dB adjustment range.
Instrument operates in the UL1: 698-716, UL2: 776-787, DL 728-757 MHz regions.
Figure 6 displays Plug-in 700 RF connections in rear.
Figure 6