User Manual

Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System

4-4

Scalable System Architecture

The InCell™ distributed antenna system is a scalable system that can be configured to support

small or large numbers of remote antennas, depending on the building size. Very large systems

may be configured by using standard power divider/combiners to combine multiple CDUs

together.

A 2-way power divider can combine signals to/from 2 CDUs to support up to 12 remote

antennas; an 8-way power divider can combine signals to/from 8 CDUs to support up to 48

remote antennas. Care should be taken to consider the RF loss through the power dividers to

ensure that sufficient signals levels are present for uplink and downlink operation.

REMO TE ALARM

RF 100-240 VACRF POWE R

REMO TE ALARM

RF RF 100-240 VACPOWE R

REMO TE ALARM

RF RF 100-240 VACPOWE R

REMO TE ALARM

RF RF 100-240 VACPOWE R

REMO TE ALARM

RF RF 100-240 VACPOWE R

REMO TE ALARM

RF RF 100-240 VACPOWE R

REMO TE ALARM

RF RF 100-240 VACPOWE R

REMO TE ALARM

RF RF 100-240 VACPOWE R

RF RF RF RF RF RF RF RFRF

REMOTE ALARM

RF IN

Figure 4-1. System expandability to 48 ERAUs