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RRU5303
Installation Guide
Figure 6-6 Hoisting optical fibers onto the tower
(1) Lifting sling
Before hoisting optical fibers onto the tower, connect the optical fibers to the RRU or BBU
based on the labels on both ends of the cables and determine the hoisting direction.
1.
2.
Issue Draft B (2018-05-15)
After climbing up to the tower, installation engineer A secures the fixed pulley to the
tower platform support and leads the lifting sling through the fixed pulley.
Installation engineer B places the fiber coiler for coiling optical fibers on the fiber spools,
and installation engineer D lead the lifting sling through the stretch sling of the optical
fibers and use the other sling as a traction sling to secure the cables 4 m (13.12 ft) away
from the lifting sling, as shown in Figure 6-7.
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6 Hoisting an RRU and Related Cables onto a Tower
(2) Fixed pulley
(3) Traction sling
41
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