Allied International Home Security System User Manual
Page 50
Camera interfaces
Hardware Installation Guide V2.0.0
50
DOLPHIN
The inputs can be connected directly to +5 V. If higher voltage is used a resis-
tor will have to be switched in series: at +12 V use a 470
Ω resistor, at +24 V
use a 1.2 k
Ω resistor. (DOLPHIN)
OSCAR
The inputs can be connected directly to +5 V. If a higher voltage is used, an
external resistor must be placed in series: at +12 V use a 820
Ω resistor, at
+24 V use a 2.2 k
Ω resistor. (OSCAR)
MARLIN
The inputs can be connected directly to +5 V. If a higher voltage is used, an
external resistor must be placed in series: at +12 V use a 820
Ω resistor and
at +24 V use a 2.2 k
Ω resistor. (MARLIN)
GUPPY
The inputs can be connected directly to +5 V.
Caution
a
DOLPHIN
Voltages above +45 V may damage the optical coupler.
Caution
a
OSCAR
Voltages above +45 V may damage the optical coupler.
Caution
a
MARLIN
Voltages above +45 V may damage the optical coupler.
Caution
a
GUPPY
If using voltages higher than + 5 V the input of the cam-
era will be damaged.
To avoid damage of the input, use an external resistor in
series (outside of the camera).
Recommendations for resistors by voltages higher than + 5 V:
•
At +12 V use a 18 k
Ω resistor.
•
At +24 V use a 47 k
Ω resistor.
For details see