Справочник Пользователя для Fiber-Span LLC FS31-15C

 

 6

 

3434 Rt. 22W ▪ Suite 140 Branchburg, NJ 08876 

908.253.9080 ▪ fiber-span.com 

 

Part Number 

Description 

Quantity 

290-0061 

Fiber Optic Transmitter / Receiver 

1 

 

The main parts are the same for the wall mount and rack mount versions excluding the RF cable 

interfaces and wiring harnesses that vary in length.  Some or all the parts are subject to change 

without notice for the purpose of improving the product functionality. 

8. 

The RRU is mounted in a strategic remote location where signal communication is poor or none 

available determined by the system engineer assessment and is part of a large system 

configuration with a headend.  Integrated at the headend are elements that transmit, receive, 

condition and transport signals simultaneously via two (2) dedicated single mode fiber medium 

into an RRU and signal distributed and repeated for every remote unit. 

 

One (1) fiber medium is for the downlink path and the other fiber medium is for the uplink path 

optical interface ports RRU which is design for long haul up to 10 dBo of optical loss translating 

into a useable uninterrupted fiber-distance of 28.5 Kilometers. 

 

Downlink signals at the headend are condition by the base station unit (BSU) which accepts an 

input power from the RF source between 0 dBm to 30 dBm and outputs signal levels of 0 dBm 

with nominal at -10 dBm into the fiber transmitter unit. 

 

A network management system (NMS) controls and configures the main elements the headend 

location as well as the RRU hardware via dedicated Ethernet LAN internet connections within 

the same fiber backbone.  Lost of communication to and from the system is reported and logged 

with the NMS.