Unit installation

FS70 Trawl Sonar System
30 974-24007001/4.1
If you have not selected the Rack Mounted System, the FS 70
Processing unit should be mounted in close vicinity to the operator's
position in the wheel house and near the display unit. The unit may
be mounted on top of the bridge console or recessed into a cabinet.
Note: You must have access to the ON/OFF switch and provide
proper ventilation to avoid overheating.
The Power Supply/TTM Interface Unit supplied with the system may
be mounted on top of the bridge console or recessed and flush
mounted into the bridge console. Sufficient space should be left
around the control unit for proper ventilation.
Optional equipment for interface to the control unit may be mounted
in any convenient location provided the user supplied interconnects
cables is of sufficient length and the required power is available.
NOTE: The Processing Unit and the Power/TTM must be
connected to a dedicated UPS.
4.2.2 Ship Power Requirement
The display unit, generally, will require 120 VAC or 230 VAC.
Depending on the capabilities of the unit chosen, it may
automatically detect the supply voltage or the unit may have to be
ordered for the correct voltage.
The FS 70 Processor will operate from either 120 VAC or 230 VAC.
IF input voltage must be selected then a voltage input selector switch
is located at the rear of the unit. Some of the processors are equipped
with auto detection voltage input.
The FS Power Supply/TTM module can be operated with either 120
VAC or 230 VAC. Selection of the supply voltage is done by moving
the voltage selector card located in the power entry module at the rear
panel. Details on selecting the proper voltage are indicated on the
voltage card. You must position the “indicator pin” location to the
desired voltage.
To change the input line voltage, use a small blade screwdriver and
pop the cover. Pull the voltage selector card straight out from the
housing, and place the indicator pin to the selected voltage. Reinsert
the card, reinstall the cover and verify that the indicator shows the
desired voltage. You must insure that the proper fuse rating is
installed, 2 A for 230 VAC and 4 A for 110 VAC. Spare fuses are
supplied with the TTM module.
NOTE: Failure to select the proper input voltage will damage
the internal power supply.