User's Manual

Chapter 6: Installation
Supplemental installation information
Page 6-70
8
Repeat with a further four layers of PVC tape, always overlapping at half width. Wrap the
layers in alternate directions (top to bottom, then bottom to top). The edges of each layer
should be 25mm (1 inch) above (A) and 25 mm (1 inch) below (B) the previous layer.
9
Prepare the metal grounding point of the supporting structure to provide a good electrical
contact with the grounding cable clamp. Remove paint, grease or dirt, if present. Apply anti-
oxidant compound liberally between the two metals.
10
Clamp the bottom lug of the grounding cable to the supporting structure using site approved
methods. Use a two-hole lug secured with fasteners in both holes. This provides better
protection than a single-hole lug.
Attaching and weatherproofing an N type connector
The following procedure should be used to weatherproof the N type connectors fitted to the
connectorized ODU (AP/SM/BH) and antenna. This procedure must be followed to ensure that
there is no moisture ingress at the radio ports. Failure to properly seal N-type antenna connectors
can result in poor link performance or complete loss of radio communication.
Note
Cambium recommends to assemble the antenna, attach the ODU and cabling, and to
seal the RF connections before installing the unit at the deployment site.
Note
N type connectors should be tightened using a torque wrench, set to 15 lb in or 1.7
Nm. If a torque wrench is not available, N type connectors may be finger tightened.
Use this procedure to weatherproof the N type connectors fitted to the connectorized ODU and
external antenna (if recommended by the antenna manufacturer).