FibeAir® IP-20E
Installation Guide
Ceragon Proprietary and Confidential
Page 16 of 52
3.
Cable Installation and Grounding
Cables must be grounded as follows:
For optical (SFP) cables (see
Connecting an Optical Fiber Cable and SFP
on
page 23), no grounding is required.
For Ethernet cables, the cable should be grounded to the antenna tower
every 50m, using the kit CAT5E_gnd_kit.
3.1.1
Grounding Procedure
1 On the front of each IP-20E unit, loosen the nut, plain washer, and serrated
washer.
2 Place the cable lug (supplied with the IP-20E grounding kit) on the screw.
3 Secure the cable lug.
Notes:
The unit’s earthing screw terminal shall be permanently
connected to protective earth in a building installation in
accordance with applicable national code and regulations by
a service person.
A 2-pole circuit breaker, a branch circuit protector, suitably
certified in accordance with applicable national code and
regulations, rated maximum 20A, shall be installed for full
power disconnection in a building installation.
Any outdoor antenna cable shield shall be permanently
connected to protective earth in a building installation.
3.1.2
Power Source
When selecting a power source, the following must be considered:
DC power can be from -40 VDC to -60 VDC.
Recommended:
Availability of a UPS (Uninterrupted Power Source), battery
backup, and emergency power generator.
Whether or not the power source provides constant power (i.e., power is
secured on weekends or is shut off frequently and consistently).
The power supply must have grounding points on the AC and DC sides.
