Installation Guide for FibeAir IP-20C-HP
Page 62 of 204
Ceragon Proprietary and Confidential
6.
Installation Instructions for Configurations with
Diplexer-Based Branching
6.1
Torque Requirements
When tightening the captive screws, use 20 Nm torque for radio-antenna, radio-
mediation device, and mediation device-antenna connections. In order to avoid
misalignment, screws should be tightened progressively.
For installing the diplexer unit on the radio, use 5 Nm torque.
When fastening a waveguide to the radio or mediation device, use the following
torque, according to frequency and screw type:
•
4-5 GHz: M6: 10 Nm
•
6 GHz: M5/#10-32: 3.5 Nm
•
7/8-11 GHz: M4/#8-32: 2.5 Nm
In addition, when connecting the diplexer to the radio and the radio to the
mediation device, screws should be cross-tightened gradually. In other words,
partially tighten one screw, then partially tighten the opposite screw. For
example, if you start with the screw on the upper left, proceed to the screw on
the lower right, then the upper right, then the lower left. Tighten each screw
partially, then in the same order, tighten the screws further until each screw is
fully tightened.
