Product Overview
Page 6
InterReach Spectrum Remote Access Unit Installation Guide
©
2012
TE
Connectivity
Ltd
TECP-77-222 • Issue
1 • August
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
3
6
5
4
Ref #
Component
Device
Function
1
RF SubMiniature version 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), there 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 Module 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.
