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8
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Pin 5 = Battery –
Connect to battery ground as close to battery
as possible.
Pin 2 = Keyswitch
The keyswitch turns on and off the LED display of the
battery discharge indicator.Monitoring of the battery
continues when Pin 2 is turned off and the display
is not lit.
The hour meter display is unaffected by Pin 2, although
it cannot accumulate more time as long as the
keyswitch pin is not energized.The control input HRM
(+) is enabled by the keyswitch.Pin 2 is connected to
the vehicle’s keyswitch.
Pins 1,2, 6 & 7 = Hour Meter Control (+)
In normal operation, Pin 1, 6 or 7 are connected when
using normal hour meter function. It is possible to
OR the hour meter between the three inputs so that it
accumulates the total time either system is on.Hour
meter control logic is detailed in Table 2.