Installation Manual

Product Overview
Page 8 InterReach Spectrum Remote Access Unit Installation Guide - Preliminary Update for Issue 3
© 2012 TE Connectivity Ltd. ADCP-77-168 • Issue 3 • May 2012
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
1 4
LINK STATUS
SECONDARY
REV
SECONDARY
FWD
2
3
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(s) 50 N-type connector Connects to an antenna. See Table 3 on page 9.
4 SECONDARY FWD connector F connector port Connects to one of the MRAU FWD SECONDARY ports (1 - 3)
via C
ATV cable.
(1) The 700 MIMO SRAUs does NOT have an RF SMA cable, and has two Antenna ports.