Product Overview
Page 8
InterReach Spectrum Remote Access Unit Installation Guide
©
2012
TE
Connectivity
Ltd
TECP-77-222 • Issue
1 • August
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
2
3
LINK
STATUS
SECONDARY
REV
SECONDARY
FWD
SECONDARY
REV
SECONDARY
FWD
LINK STATUS
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 10
.
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.
