Safety instructions

= 5 V

 

Input signal

 

> 5 V

10 k

 

External resistor

 

(outside camera)

 

See warning above

 

Input

Polarity

selectable

via software

Input state

Figure 1: Input block diagram (GUPPY)

Caution GUPPY

The Guppy outputs are not short-circuit-proof.

If there occurs a short-circuit at the outputs, the output driver will be damaged.

MARLIN/OSCAR voltages

The inputs can be connected directly to +5 V. If a higher voltage is used, an external resistor must be placed in series. Use @+12 V a 820 Ω and @+24 V a 2.2 kΩ resistor.

Caution

Voltages above +45 V may damage the optical coupler.

DOLPHIN voltages

The inputs can be connected directly to +5 V. If a higher voltage is used, an external resistor must be placed in series. Use @+12 V a 470 Ω and @+24 V a 1.2 kΩ resistor.

Hardware Installation Guide V2.0.0

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Allied International Home Security System manual MARLIN/OSCAR voltages, Dolphin voltages