Allied International Home Security System - Manual (Page 51)

Camera interfaces
Hardware Installation Guide V2.0.0
51
PIKE The inputs can be connected directly to +5 V. If a higher voltage is used, an
external resistor must be placed in series. Use at +12 V a 820
Ω resistor and
at +24 V a 2.2 k
Ω resistor.
STINGRAY The inputs can be connected directly to +3 V ... + 30 V. (STINGRAY)
ALL CAMERAS The following note is valid for all cameras:
Figure 25: Input block diagram (GUPPY)
Caution
a
PIKE
Voltages above +45 V may damage the optical coupler.
Caution
a
STINGRAY
Voltages above +30 V may damage the optical coupler.
Note
L
ALL CAMERAS
For information on the optical coupler, polarity and the IO
registers see the Technical Manuals.
External resistor
(outside camera)
See warning above
Input signal
10 k
Input
Input state
Polarity
selectable
via software
= 5 V
> 5 V