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CA2 Installation Manual
2.2.1 Cable protection and retaining
The rear case of the CA2 unit has been created to allow for simple and effective installation
of the connecting cables to allow for maximum protection and robustness.
It is advisable to insert the required cables into the rear cover BEFORE installation.
The two coaxial cables (VHF antenna and GNSS antenna) are secured through rubber
boots and the interface cables are passed through rubber grommets and secured to the
cable support. Select the appropriate boot ends for the cable being used and feed the
cables through the boots
Plan what interface cables are required and use a pair of long nosed pliers to remove the
required water seal plugs from the retaining grommets. Pass the cables through the grom-
mets and secure with cable ties leaving appropriate length for the connections.
VHF Antenna Connector
The rubber boot caps supplied are suitable for up to 10mm diameter coaxial cable, select
the appropriate cap and pass it over the cable followed by the boot before connecting the
cable to a suitable PL259 plug. Pass the plug and cable through the hole in the rear cable
cover and insert the boot and boot cap ready for final installation.
GNSS Antenna Connector
The rubber boot caps supplied are suitable for 3mm or 6mm diameter coaxial cable. If the
supplied cable is long enough to connect directly then cut the boot cap and slot it around
the cable. If a cable extension has been used select the appropriate cap and pass it over
the cable followed by the boot before connecting the cable to a suitable TNC plug. Pass
the plug and cable through the hole in the rear cable cover and insert the boot and boot
cap ready for final installation. If the boot cap has been cut secure it around the cable with
a cable tie.
Data Cables
Cut and remove the plastic plugs from the appropriate access grommets on the rear cable
cover.
NOTE: Only remove the plastic plugs required leaving the others in place to
prevent water access to the rear of the main unit.
The grommets are suitable for cable diameters between 4mm and 6mm. Pass the required
cables through the grommets and secure with the cable ties provided.
28/04/2020
Y1-03-0294 Rev. A
9
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