User Manual

AS4000 Subscriber Terminal
Installation and Commissioning DLP 002
605-0000-436
Issue 1.5 Date: 18th October 1999
Page 3 of 4
Fitting the CRU
Once the bracket is in place, fit the CRU using 2 bolts with plain and spring
washers. Rotate the CRU to face in the general direction of the CT. At this
stage, finger tighten the bracket locking bolts The main body of the CRU
should always be orientated towards the larger part of the bracket relative to
the mounting points (see Figure 9). The CRU is always mounted with the cable
connector at the bottom.
Note: The final torque setting is only applied when the panning operation is
complete.
Figure 9. Correct CRU orientation relative to the Mounting Bracket
Cable Support Bracket Installation
The cable support bracket is mounted on the pole. If the cable leaves the pole
in the direction of the CRU radiation pattern (i.e. within +/- 15°of the direction
perpendicular to the front face of the CRU), then the cable support bracket
must be mounted a minimum of 0.5 m above (or below) the CRU such the
cable does not run in the near field of the CRU antenna radiation pattern. Align
the cable support bracket such that the flat front surface is aligned in the
direction of the cable run. Screw the cable support bracket to the pole below
the CRU using 4 coach bolts with plain washers in a similar way to the CRU
bracket. The cable support bracket may be mounted either way up so that it can
be mounted on either side of the pole to avoid existing cables or cable ducts
running down the pole.