User's Manual

VOLUME III, CHAPTER 2, IRU 600 INSTALLATION
IRU 600 Installation Procedure
This procedure applies to IRU 600(v1), IRU 600v2, and IRU 600v3. Unless other-
wise stated, reference to IRU 600 refers to all IRU 600 variants.
1. Fit the rack mounting brackets onto the chassis.
o
Brackets can be mounted in either a forward mount or a flush mount
position.
o
Brackets can be mounted such that the grounding stud is to the left or
right side.
2. Install the chassis. If installing multiple chassis:
o
For IRU 600(v1) and IRU 600v2 install with a 3RU space between the
chassis to permit installation of an expansion or extension kit. This space
can be used to install an INU/INUE.
o
For IRU 600v3 no chassis spacing is required, but a 1RU space should be
retained above the top and below the bottom of the chassis stack to ease
hand access to RFU - ACU cable installation.
3. Locate and secure RFU(s) and ACU in the IRU 600 chassis.
o
For IRU 600v3 the chassis-mounted post fitted to secure the right side of
the RFU / left side of the ACU front cover is removable.
o
This is to assist connection/dis-connection of the RFU SMA connectors,
and the DIN5 connector on 1+1 configurations.
CAUTION:When re-fitting the IRU 600v3 removable post do not over-
tighten. Thumb-tighten only to avoid thread-striping.
Figure 2-1. IRU 600v3 Removable Post
4. Connect the RFU(s) to the ACU using the supplied RF cables. Refer to the cabling
diagram on the rear side of the ACU front panel. The lower RFU is A-side, the top B-
side. A-side is the default online RFU in a 1+1 protected pairing.
50 AVIAT NETWORKS