User's Manual

Tele Eye
RX
User
Guide Page 100
Install
Tele Eye RX with Tamper Circuit and External Resistors
B. Install Tele Eye RX with Tamper Circuit and External
Resistors
Tele
Eye RX supports tamper detection (DEOL and SEOL) on all alarm inputs, arm/disarm
input, security switch input, system tamper and power failure input.
DEOL : Dual End of Line termination with NC and NO connection
SEOL : Single End of Line termination with NC and NO connection
NC/NO : Alarm and other input ports without tamper detection circuit
connection
For example, by connecting the tamper circuit with DEOL, the circuit with the normal closed
condition if the resistance between point A and B detect 1.2kΩ (shown as below), or the
circuit with the normal open condition if the resistance between point A and B (shown as
below) detect 7.2kΩ.The resistance transition from 1.2kΩ to 7.2kΩ is generated an alarm
tamper event for normal close circuit. The setup configuration of those alarms and input ports
are shown in the following diagram. The circuit debouncing time between each sensor is 20
millisecond.
Dual End of Line Configuration
Normal Close (NC)
Normal Open (NO)
Term Status Description
S/C TAMPER Wire short (point A and B)
LoZ NORMAL Sensor drive output close (point B and C)
HiZ ALARM Sensor drive output open (point B and C)
O/C TAMPER Wire open (point A and B)
Term Status Description
S/C TAMPER Wire short (point A and B)
LoZ ALARM Sensor drive output close (point B and C)
HiZ NORMAL Sensor drive output open (point B and C)
O/C TAMPER Wire open (point A and B)
wire
sensor
drive
output
A
B
C
wire
sensor
drive
output
A
B
C
R1.2K
R6K
R1.2K
R6K