Antennas And Antenna Cabling; Antenna Requirements; Rf Cable And Connectors; Antenna Accessories - Cambium Networks PTP 550 Series User Manual

Chapter 2: System hardware

Antennas and antenna cabling

Antenna requirements

Each connectorized ODU requires one external antenna (normally dual-polar). These antennas
are not supplied by Cambium Networks.
Note
To determine when to install connectorized units and to calculate their impact on link
performance and regulatory limits, see

RF cable and connectors

RF cable of generic type LMR-400 is required for connecting the ODU to the antenna. N type
male connectors are required for connecting the RF cables to the connectorized ODU. Two
connectors are required per ODU. Use weatherproof connectors, preferably ones that are
supplied with adhesive lined heat shrink sleeves that are fitted over the interface between the
cable and connector. Order CNT-400 RF cable and N type male connectors from Cambium
Networks (Table 14).
Table 12 RF cable and connector part numbers
Cambium description
50 Ohm Braided Coaxial Cable - 75 meter
50 Ohm Braided Coaxial Cable - 500 meter
RF Connector, N, Male, Straight for CNT-400 Cable
Note
To select the correct connectors for the antenna end of the RF cable, refer to the
antenna manufacturer's instructions.

Antenna accessories

Connectorized ODUs require the following additional components:
•
Self-amalgamating and PVC tape: Order these items to weatherproof the RF connectors.
•
Lightning arrestors: When the connectorized ODU is mounted indoors, lightning arrestors
are required for protecting the antenna RF cables at building entry. One arrestor is required
per antenna cable. One example of a compatible lightning arrestor is the Polyphaser LSXL-
ME or LSXL (not supplied by Cambium Networks).
Planning for connectorized units
Page 2-12
Antennas and antenna cabling
on page 3-31.
Cambium part number
30010194001
30010195001
09010091001