Standard Switching For Control Inputs; Wiring Variants For Voltage-Monitored Control Inputs - HeiTel CamServer 2c Guía De Instalación Rápida

HeiTel Digital Video GmbH - Quick Installation Guide CamServer 2c

Standard switching for control inputs

Wiring variants for voltage-monitored control inputs

CamServer 2c
The CamServer 2c has a number of control inputs
Control in2, Aux in). However these inputs are not 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 CamServer
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 resistor, 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 opened" 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
predefined control resistance of 10 kOhm (±40%).
Activation with
"Normally opened"
external
Ω
Normally
R=10 k
Normally opened
Ω
R=10 k
Normally closed
CamServer 2c no longer measures the
(Al a/d, Control in1,
Circuit
internal
U (5V)
b
Ω
1.5 k
0V
2c permits
Control input
Ω
CamServer 2c
Control input
CamServer 2c
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