Fiber-Span LLC FS31X-85-C ユーザーズマニュアル
Page 3 of 12
Rev 02 11-Jul-05
FS31LX-XX and FS31X-85-C
Fiber Optic RF Repeater System
Optical Repeater Unit (ORU)
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PA
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MGC
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P.S.
Alarms
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Power
Supply
Alarms
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Fiber Optic
Cables
Fiber Transceiver Unit (FTU)
3 Product
overview
The fiber optic repeater system is designed to transport and distribute Public Safety
& Private Land-Mobile Radio Frequencies signals through fiber optic medium. The
Downlink has high Power to drive Distributed Antenna Systems (DAS). The Uplink
has Low Noise figure to receive low signals over the air antenna.
The purpose for this system is to expand radio coverage for an In-Building System
which is between the 806-824 MHz Uplink and 851-869 MHz MHz Downlink range.
This is done by sending and receiving the RF signals from the basestation and
distributing the radio signals over fiber, to a remote fiber optic transceiver to
interface to a remote antenna. The system design is for single or up to 32 remote
optical repeaters.
The FS31LM-01-LMC is a subrack fiber optic transceiver, which can contain from
one to four transceivers. These transceivers provide the optical connections to the
FS31HM-85-C-18-65 Remote Repeater. The FS31LM-01-LMC is AC powered and
offers transceiver alarm LED indicators, Dry contact (NO) alarm terminals, and RF
gain control for each receiver for uplink signals.
The FS31HM-85-C-18-65 interfaces with the fibers from the FS31LM-01-LMC and
connects the remote antenna to a single RF port. The FS31HM-85-C-18-65 is AC
powered and offers Dry contact (NO) alarm terminals for the transceiver, door open,
and PA alarms.
System Components and Descriptions
Model Function
Description
FS31HM-85-C-18-
65
65
Optical Repeater Unit
Transmitter and Receiver Amplifier
Single RF, Dual Optical Port
Single RF, Dual Optical Port
FS31LM-01-LMC
Fiber Transceiver Unit
Transmitter and Receiver Dual RF
Port, Dual Optical Port
Port, Dual Optical Port
4 Connection
Diagrams
To Base-
station Unit
station Unit