FibeAir® IP-10G
Installation Guide
Ceragon Proprietary and Confidential
Page 20 of 71
7.8
Grounding the IDU and Electrical Information
The following illustration shows how the IDU is grounded to the rack.
IDU Grounding Notes
The IDU is suitable for installation in a Common Bonding Network (CBN).
Only copper wire should be used.
The wire must be at least 14 AWG.
Connector and connection surfaces must be plated. Bare conductors must
be coated with antioxidant before crimp connections are made to the
screws.
FibeAir provides a ground for each IDU, via a one-hole mounted lug onto a
single-point stud. The stud must be installed using a UL-listed ring tongue
terminal, and two star washers for anti-rotation.
For antenna ports, lightning protection is used that does not permit
transients of a greater magnitude than the following:
Open Circuit: 1.2-50us 600V
Short Circuit: 8-20us 300A
The ampacity of the conductor connecting the IDU frame to the DC return
conductor is equal to, or greater than, the ampacity of the associated DC
return conductor.
1 On the IDU, connect a grounding wire to the single point stud below the
IDU-RFU interface (using the single screw with two washers), and, at its
other end, to the rack.
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Grounding
Wire
