Operation Manual
FarSounder, Inc.
F31552 (Rev. 3.8.0)
Page 16 of 69
Warning
Do not open the Power Module or allow it to get wet. Injury or death may result. There are no
user serviceable parts inside.
Plugs and Connections
The Power Module has three connections that are necessary for operation: a Transducer Module
Connection Cable, a network connection, and a power connection.
The Transducer Module Connection Cable enters the chassis via the large circular cable gland on the side
of the Power Module's chassis. The Transducer Module Connection cable is the largest of the cables and
requires the most clearance. The Transducer Module Connection cable should have a soft layup entering
the Power Module. The minimum cable bend radius is 6 inches (15 cm). Therefore, 8 to 10 inches (20 to 25
cm) minimum clearance at the cable gland outside the Power Module is recommended. FarSounder is not
responsible for damage to the cable due to excessive bending. Standard cable/wire anchors or ties can be
used to support/secure the cable to any bulkheads or mounting hardware as necessary.
Figure 20. Transducer Module Connection Cable entry into rack mount Power Module
The Power Module is powered by either 110-120 or 220-240 VAC. Total power consumption for the unit is
approximately 100 watts continuous. A power receptacle (IEC-320-C14 inlet socket) is used to connect AC
mains power to the Power Module. The recptical includes a replaceable fuse, line filter and a master power
switch. It is recommended that an Uninterpretable Power Supply (UPS) be used to power the Power Module.
Important
If a replacement fuse if ever needed, the reason for the blown fuse should first be investigated.
The replacement fuse specification is: Fast Acting; 6.3A; Dims 5x20mm; Glass; Cartridge;
250VAC; 0.009Ohms.
Important
If the Power Module is located in a location that is not easy to access, it is recommended that
a dedicated circuit (with circuit breaker in the main bridge circuit breaker panel) be used for the
Power Module. This will allow the user to turn off the Power Module remotely.
The Power Module has a standard RJ-45 plug for connecting to the user interface computer. The Ethernet
cable enters the chassis via the smaller circular cable gland. When connecting the Power Module directly
to the user interface computer, an Ethernet cross-over cable should be used. If the Power Module is going
