User's Manual

5-2 Aviat Networks
Chapter 5. Installing the IRU 600
Ventilation Requirement
There must be a minimum of 50 mm (2”) of side spacing from the
INU/INUe to any rack panels, cable bundles or similar, and 50
mm (2”) of space to the front and back of the RF section to ensure
proper ventilation.
Grounding
The grounding stud as shown in Figure 5-2 will accommodate a wrist strap using the
jack at the front. It also will accommodate cable up to 16 mm
2
(AWG 6). The cable can
be threaded through the side holes and then secured by tightening the screw located on
the front of the grounding post. The grounding post is a pinned to prevent rotation.
1. Ground the IRU 600 from the grounding stud to the rack/frame ground bar using
a length of 4 mm
2
(AWG 12) green PVC insulated stranded copper wire with a
suitably sized crimp lug at each end (supplied by the installer).
For NEBS compliance, 16mm
2
(AWG 6) green PVC insulated stranded copper wire
is required together with a star washer under the grounding screw. Grounding post
screws must be torqued to 1.2-1.5 Nm (10-13 in-lbs).
2. If the equipment rack/frame requires grounding, use 16 mm
2
(AWG 6) wire from
its ground bar to the station ground.
Figure 5-2. Grounding Point Detail
Ground