User's Manual

Install the RAUs and Antennas
Page 10 InterReach Spectrum Remote Access Unit Installation Guide
©
2011 ADC Telecommunications, Inc ADCP-77-168 • Issue 2 • 07/2011
Connect the IFEU to the MRAU
NOTE: The IFEU should be powered up before starting this procedure; see the InterReach
Spectrum Expansion Module Group Installation Guide (ADCP-77-167).
4 Follow these rules for the CATV cables when connecting the IFEU to the MRAU:
• The FWD and REV cables should be close to the same length.
• The FWD and REV cables should be the same cable type (both RG6 or both
RG11).
• A pair of CATV cables connects each MRAU to the IFEU. The IFEU REV
Module IF IN port and the IFEU FWD Module IF OUT port must match. For
example, if IFEU REV Module IF IN Port 3 is used, use IFEU FWD Module IF
OUT Port 3.
• Refer to “Appendix B: 75-Ohm CATV Cable” on page 16 for information on
maximum RG-6 or RG-11 CATV cable lengths.
5 Test the cable termination for each CATV cable before installing it.
6 Connect F connector CATV cables on the IFEU and MRAU, in the order given
below.
If the LEDs do not perform as described in this procedure, refer to “MRAU LEDs”
on page 6.
a Connect a CATV cable from one of the IFEU FWD Module IF OUT connectors
(1 - 8) to the MRAU FWD IF IN connector.
b Confirm that the MRAU FWD IF IN LED is yellow, which indicates a correct
physical connection.
c Connect a CATV cable from the IFEU REV Module IF IN connector (1 - 8) to
the MRAU REV IF OUT connector, making sure that you pair the port used
to the same port number selected in Step 6a.
If the connection is correct, the MRAU powers up and the MRAU FWD IF IN
LED turns green.