INSTALLATION GUIDE FOR RA-5200
RA-5200 QI
Copyright - refer to title page
Page 39
ENU Status : 1-0-0
8.1.7 ATTACHING RRU ONTO MOUNTING RACK
Located on the rear of the RRU enclosure is the array of protruding vertical cooling fins.
The two outer fins are designed for attaching the enclosure to the mounting rack. Each of these
fins has two steel shims inserted – one towards the top and the other towards the lower end of
the each outer fin.
Ensure each M8 bolts has a spring loaded washer and a flat washer.
Partially thread the M8x20 hex bolts (1, 3, 4, and 6) onto each steel shim.
Hang the equipment to the top of the mounting rack so that the top hex bolts (1 and 4) will take
the weight of the equipment.
Push the lower end of the equipment to engage the two lower bolts (3 and 6) onto the mounting
rack.
Tighten the four partially threaded hex bolts to secure the equipment onto the mounting rack.
Insert two more hex bolts (2 and 5) through the mounting bracket and tighten them to the steel
shim.
The above steps will mount the equipment firmly. Refer to the photograph in the “Mounting
Bracket” section to verify the correct arrangement of spring loaded and flat washers.
6
4
5
1
2
3
Enclosure
Wall Mounting Pole Mounting
Fig 23: Attaching the RRU onto the mounting rack
8.1.8 DRIP-LOOP
Comba recommends that every horizontal cable entry to the equipment forms a 'U' before it’s entry to
the equipment. Any accumulated water on the cable will drip down at the bottom of the loop and will
not climb up to the equipment.
