DATASONICS SIS-1500 System Manual page 48

3-12
HIGH VOLTAGE key switch:
HIGH VOLTAGE indicator:
VOLTS meter:
AMPS meter:
DATA LOCK LED:
TELEM LOCK LED:
XMIT KEY LED:
Volume I System Manual
A key switch that turns the high voltage
power supply in the digital multiplexer on
or off. The key switch is on when it is in
the horizontal position and off when it is in
the vertical position. The high voltage
power supply is off and the key switch is
locked when the key is removed.
A yellow indicator that is illuminated
when the high voltage power supply is
on. The indicator is on when both the
ON/OFF switch and the HIGH VOLTAGE
key switch on the digital multiplexer are
on.
An analog meter that Indicates the
voltage in volts being transmitted to the
tow vehicle from the digital multiplexer.
An analog meter that indicates the
current in amps being transmitted to the
tow vehicle from the digital multiplexer.
A green indicator that flashes when the
sonar data link is being established and is
illuminated continuously when the link is
established.
A green indicator that flashes when both
the uplink and downlink data telemetry is
being established and is illuminated
continuously when the link is established.
A red indicator that flashes once every
time a sonar key is output to the tow
vehicle.
DATASONICS
June 1998