User's Manual

Product Overview
Page 6 InterReach Spectrum Remote Access Unit Installation Guide - Preliminary Update for Issue 3
© 2012 TE Connectivity Ltd ADCP-77-168 • Issue 3 • December 2011
MainRemoteAccessUnits
TheMainRemoteAccessUnit(MRAU)receivesFWDIFsignalsfromanIFExpansionUnit(IFEU),
whichispartoftheSpectrumExpansionModuleGroup,using75
CATVcable.TheMRAU
convertstheIFsignalstoRFandsendsthemtoapassiveRFantennausing50
coaxialcable.The
MRAUalsoreceivesconfigurationinformationandpowerfromandsendsitsstatusinformation
totheIFEU.
TheMRAUreceivesREVRFsignalsfromapassiveRFantennausing
50coaxialcable.Itconverts
thesignalstoIFandsendsthemtotheIFEUusing75
CATVcable.
MRAUPorts,Cable,andConnectors
REV IF OUT REV SECONDARY PORTS
1 2 3
FWD SECONDARY PORTS
1 2 3
FWD IF IN
LINK STATUS
1 2
36
5
4
Ref # Component Device Function
1 RF SubMiniature ver
sion A
(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), th
ere will not be an SMA
cable.
2 Antenna port(s) 50 N-type connector Connects to an antenna. See Table 3 on page 10.
3 FWD IF IN connector F connector port Connects to the IFEU FWD Mod
ule IF OUT connector via
CATV cable.
4 FWD SECONDARY PORTS (1 - 3) F connector ports Connect to a SRAU SECONDARY
FWD connector via
CATV cable.
5 REV SECONDARY PORTS (1 - 3) F connector ports Connect to a SRAU SECONDARY REV connector via
CATV cable.
8 REV IF OUT connector F connector port Connects to the IFEU REV Module IF IN connector via
CATV cable.
(1) The AWS/PCS MRAUs does NOT have an RF SMA cable, and has two Antenna ports.