Directed Electronics rk20 Benutzerhandbuch

Programming jumpers

➤

Light flash (+) / (-) polarity

This jumper is used to determine the light flash output polarity. In the (+) position,
the on-board relay is enabled and the unit will output (+)12V on the WHITE
wire, H1/2. In the (-) position, the on-board relay is disabled. The WHITE wire,
H1/2, will supply a 200mA (-) output suitable for driving factory parking light
relays

NOTE:

For parking light circuits that draw 10 amps or more, the internal jumper

must be switched to a (-) light flash output.

P/N 8617

or a standard automotive

SPDT relay must be used on the H1/9 light flash output harness wire.

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➤

Tach threshold On/Off

In most cases, this jumper can be left in the Off position. Some new vehicles use

less than 12 volts in their ignition systems. The unit may have trouble learning the

tach signal in these vehicles. Changing the jumper to the On setting changes

the trigger threshold of the digital tach circuit so that it will work with these type

vehicles.