Unit installation

FS 70 Installation Instructions

974-24007001/4.1 39

A locating block located at the end of the housing or a guide bracket

is used to prevent the sonar head from rotating. Only one guide

block is required and it can be placed into the positioning hole of the

bottom half of the trawl unit housing as shown in the assembly

drawing in Chapter 6.

NOTE: Dow Corning “#55” grease must be applied to all

mating surfaces of underwater connectors to insure proper

sealing. Sufficient grease should be applied so that excess

squeezes out with any air when the connectors are mated. RTV

or any other sealant must NOT be used, and when tightening

the locking sleeves, do NOT use a wrench or pliers!

4.3 System Set-up and Testing using the test cable

Initial power-up, set-up and test of the system should be made with

the trawl unit connected to the PWR/TTM module using the

supplied test cable. The 3-pin MS connector of the test cable is

attached to the connector labelled “TEST CABLE” located on the

front panel of the PWR/TTM unit. The other end of the test cable is

plugged into the 2-pin connector on the sonar head of the trawl unit.

4.3.1 FS Processor & TTM Communication set-Up

The commnunication between the FS Processor and the TTM unit

can be achive 3 ways depending on the type of communication

ports available in the processor unit:

1. If standard serial COM ports are available you may use a RS232

Null Modem cable, KML part number 144-0217, supplied with the

processor.

2. If USB ports are available then use the USB/RS232 telemetry

converter, KML part number 901-80010000, supplied with the

processor.

3. If the Ethernet port is desirable for communication then the

Ethernet/RS232 Server kit, KML part number 422-42140000, can

be purchased as an option.

4.3.2 Optional Ethernet Processor System Set-Up

Setting up your surface Window Processor to communicate with the

Ethernet converter, static “IP” addresses and “Subnet Mask” are

used to communicate between the processor and the Ethernet

converter.

IP Adress: 192.168.000.XX

Subnet Mask: 255.255.255.00