User's Guide

23
ENGINEERING TECH NOTE – QUATRA Cable and Connector Best Practices
Cel-Fi QUATRA uses QMA RF connectors and standard Ethernet RJ45 connectors. Proper handling
practices will help ensure optimum performance and limit potential connector strain or damage.
QMA RF CONNECTIONS
Use smaller flexible coaxial cables that are easier to route and manage behind the Network or Coverage
Unit. Rigid thicker cables (such as LMR400 or Heliax) will not fix properly and may strain and damage
the QMA connectors on the unit.
ETHERNET CABLES (RJ45)
Crimp on RJ45 connectors fit well behind a Network or Coverage Unit
if flush mounted to a solid surface. Prefabricated cables often have
large strain reliefs that can cause damage to the unit connector ports
if the unit is mounted directly to the surface. To accommodate these
types of cables, use adequate mounting practices such as the
supplied U brackets to ensure adequate space behind the units for the
cables.
Damage to the unit connectors may result if a unit is hung or dropped
with a cable attached.