PTP 670 QUICK START GUIDE
PAGE 22
Mount the antenna(s) according to manufacturer’s instructions. When using separate antennas to achieve
spatial diversity, mount one with Horizontal polarization and the other with Vertical polarization.
Connect the ODU V and H interfaces to the antenna(s) with RF cable of type CNT 400 (Cambium part
numbers 30010194001 and 30010195001) and N type connectors (Cambium part number 09010091001).
Tighten the N type connectors to a torque setting of 1.7 Nm (1.3 lb ft) using 24 mm (0.9 in) wrench/spanner.
If the ODU is mounted indoors, install lightning arrestors at the building entry point:
Form drip loops near the lower ends of the antenna cables. These ensure that water is not channeled
towards the connectors.
If the ODU is mounted outdoors, weatherproof the N type connectors (when antenna alignment is
complete) using PVC tape and self-amalgamating rubber tape.
Weatherproof the antenna connectors in the same way (unless the antenna manufacturer specifies a
different method).
Ground the antenna cables to the supporting structure within 0.3 meters (1 foot) of the ODU and antennas
using the Cambium grounding kit (part number 01010419001):
Fix the antenna cables to the supporting structure using site approved methods. Ensure that no undue
strain is placed on the ODU or antenna connectors. Ensure that the cables do not flap in the wind, as
flapping cables are prone to damage and induce unwanted vibrations in the supporting structure.
Connectorized ODU
H
V
PTP 670 ground cable
RF cable
