User's Guide

TSR-UL-0020-1
CHAPTER 3 : Wiring the Terminal
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3.9 Tamper Detection on Terminal Inputs
Terminal inputs can be monitored for four state tampering: open, close, tamper short and
tamper cut. If an input is tampered with, an alarm will be triggered in the AC2000 software. The
alarm is a universal tamper alarm and does not distinguish between the four different states. In
order to monitor inputs for tamper short and tamper cut, a resistor network must be installed on
the input sensor wiring as show in Figure 16 B), and the AC2000 software configured to
monitor the input.
3.9.1 Wiring the resistor network
Figure 16 Illustration of the resistor network for four state tamper detection on inputs
Important
It is imperative that the tamper resistor network is wired as close to the sensor as possible.
A)
B)