3-5
The 4125-P Portable Topside Processor controls and indicators are the following:
POWER Toggle switch. Turns on the 4125-P Portable Topside Processor.
(Switch)
POWER Red indicator. Illuminated when the 4125-P Portable Topside
(Indicator) Processor is on.
FISH POWER: Red indicator. Illuminated when the 4125-P Portable Topside
Processor is on and the towfish is properly connected to it. The
indicator is off if no power is being drawn by the towfish.
NOTE: The 4125-P Portable Topside Processor will automatically switch
off power to the towfish should the processor be disconnected from the
towfish for an extended period. The power will also be turned off if an
over current or under current condition exists. To reactivate the power
to the towfish, turn the POWER switch off and then on again.
LINK: Green indicator. Flashes while a reliable communications link with the
towfish is being established and then illuminates continuously when
the link is found.
CM Red indicator Flashes at 1 HZ is an undercurrent condition exist and 2
(Current Monitor) HZ if an over current condition exist between the topside and tow fish.
If flashing, check the tow cable for shorts or for non-continuity on pins
1 and 2.
3.5.2 4125 Rack Mount Topside Controls and Indicators
The controls and indicators for the rack mount option are shown in FIGURE 3-2 and are described below:
POWER Toggle switch. Turns on the 4125-RM Topside.
(Switch)
POWER Red indicator. Illuminated when the 4125-RM Topside
(Indicator) is on.
FISH POWER: Red indicator. Illuminated when the 4125-RM Topside is on and the
towfish is properly connected to it. The indicator is off if no power is
being drawn by the towfish.
LINK: Green indicator. Flashes while a reliable communications link with the
towfish is being established and then illuminates continuously when
the link is found.
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