ADC InterReach Spectrum, Руководство по установке, Страница: 9 / 26

Product Overview
InterReach Spectrum Remote Access Unit Installation Guide Page 7
ADCP-77-168 • Issue 1 • 09/2010 © 2010 ADC Telecommunications, Inc.
Secondary Remote Access Units
A Secondary Remote Access Unit (SRAU) receives FWD IF signals from the MRAU,
using 75

CATV cable. The SRAU converts the IF signals to RF and sends them to
a passive RF antenna using 50

coaxial cable. The SRAU, through the MRAU, also
receives configuration information and power from and sends its status
information to the IFEU.
The SRAU receives REV RF signals from a passive RF antenna using 50

coaxial
cable. It converts the signals to IF and sends them to the MRAU using 75

CATV
cable.
SRAU Ports, Cable, and Connectors
Ref
#
Component Device Function
1 SECONDARY REV connector F connector port Connects to one of the MRAU REV SECONDARY ports (1 - 3)
via CATV cable.
2 RF SMA cable (1)
50  RF SMA-to-SMA cable
Connects two RF bands together when there is only one
N-type connector on the RAU.
For cases when there is an N-type connector for each RF band
(700MIMO or PCS/AWS), there will not be an SMA cable.
3 Antenna port 50

N-type connector Connects to an antenna.
4 SECONDARY FWD connector F connector port Connects to one of the MRAU FWD SECONDARY ports (1 - 3)
via CATV cable.
(1) The 700 MIMO SRAUs does NOT have an RF SMA cable, and has two Antenna ports.
1 4
LINK STATUS
SECONDARY
REV
SECONDARY
FWD
2 3