Installation 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 • May 2012
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 9.
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.