Unit installation

System Familiarization

974-24007001/4.1 5

A test cable connector and selection switch between the trawl cable

and test cable are accessible on the front panel, providing quick

access for a test cable without disconnecting the 3

wire cable from

the rear of the TTM.

1.7 Deployment Housing Unit

The trawl deployment housing unit is made from polyurethane and

designed for the harshest of environments yet it is easy to handle.

The FS 70 trawl unit sits within the deployment housing unit and

contains the vertical sonar head, catch hydrophone receiver, the

optional forward hydrophone, the 200 kHz echo sounder transducer

and depth and temperature sensors. The mounting kit supplied

contains the strain relief cable gland and other hardware used to

attach the trawl cable to the trawl head rope.

The trawl cable is connected to the trawl sonar by a watertight

connector and a locking sleeve.

1.8 Jointing Tool

Jointing tools and materials are required for splicing the trawl cable

and attaching the trawl “2 pin pigtail” connector to the trawl sonar.

We recommend using 3M 72-N1 jointing tool kits that can be

purchase locally and are designed for coaxial cable with a breaking

point of 1500kg. The jointing kit will allow you to make 1 cable

joint.

NOTE: The size of the required joining and crimping sleeve

will be determined by the type of 3

wire you are using.