Values For End-Of-Line Resistors - Interlogix ATSx500A Series Installation And Programming Manual

Chapter 2: Installation
(1) Zone terminal
C Common terminal
Z1 Zone 1 input
Z2 Zone 2 input
Dual loop zone wiring
In dual loop wiring, one zone can detect a few detector states. At least two
resistors are used to define alarm and tamper states. Depending on the
programmed settings, there can be additional states defined as masking alarm or
sensor fault. These states can be the following:
• Short (tamper)
• Active (alarm)
• Normal
• Masking
• Sensor fault
• Open (tamper)
Figure 18: Dual loop example
(1) Zone terminal
C Common terminal
Z1 Zone 1 input
Z2 Zone 2 input
Possible EOL connections are listed in "EOL connection types" on page 27.

Values for end-of-line resistors

The following list contains the values for end-of-line resistors and possible zone
states. Both the resistance and the voltage measured across the zone are
shown.
Depending on the input type and anti-masking option, the following EOL values
can be available.
24
(1) RA
A
T
( ) 2
Advisor Advanced ATSx500A(-IP) Installation and Programming Manual
(2) Detector
A Alarm relay
T Tamper relay
A
T
( ) 2
(2) Detector
A Alarm relay
T Tamper relay
A
RT
T
( ) 2