Standard Switching For Control Inputs; Wiring Variants For Voltage-Monitored Control Inputs - HeiTel CamDisc VG 2s Schnellinstallationsanleitung

HeiTel Digital Video GmbH - Quick Installation Guide CamDisc VG 2s

Standard switching for control inputs

Wiring variants for voltage-monitored control inputs

CamDisc VG 2s
The CamDisc VG 2s has a large number of control inputs
Control in1, Control in2,
galvanically isolated from the operating voltage of the device.
Depending on the configuration, these can be activated by "Normally closed"
or "Normally opened" contacts.
The control inputs must always be activated such that they are potential-
free!
Input circuits of control inputs
Activation with
"Normally closed"
Circuit
external internal
U (5V)
b
1.5 k
0V
In addition to standard wiring of control inputs, the CamDisc VG
different types of voltage monitoring.
Normally terminated (10k)
The wiring variant
terminated (10k) allows different
circuitry for "Normally opened" and
"Normally closed".
For circuitry with a resistance, a
distinction is made between two
different states:
Not triggered: The figures show
■
the safe state in each case (not
triggered) of the detector line or the control input for the variants
"Normally opended" and "Normally closed".
Camera alarm: If the "Normally opened" or "Normally closed" contact is
■
operated, depending on the type of circuit, a camera alarm is activated.
Manipulations of the detector line such as interruption or short circuit
cause triggering as soon as the CamDisc VG
predefined control resistance of 10 kOhm (±40%).
Aux in1). However these inputs are not
"Normally opened"
external
Ω
Normally
R=10 k
Normally opened
Ω
R=10 k
Normally closed
2s no longer measures the
(Al in, Al a/d,
Activation with
Circuit
internal
U (5V)
b
Ω
1.5 k
0V
2s permits
Control input
Ω
CamDisc VG 2s
Control input
CamDisc VG 2s
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