Rosslare AC-225? AC-225IP? AC-225U - Input Types

Input and Output Requirements
AC-225 Hardware Installation and User Guide Page 16
4. Input and Output Requirements
This chapter describes the AC-225 access control panel's input
and output requirements.
4.1 Input Types
There are four input types – Normally Open, Normally Closed,
Normally Open Supervised 1 or 2 resistors, and Normally Closed
Supervised 1 or 2 resistors.
Inputs IN1, IN1A, IN2 and IN2A may be configured individually
as either supervised or non-supervised inputs. Configure each
input separately via the VeriTrax AS-225 system.
Non-supervised inputs have two states:
• Normal State
• Abnormal State
Supervised inputs have three states:
• Normal State
• Abnormal State
• Trouble State.
The Trouble state is caused by either tampering with the input
circuit or by faulty hardware installation. Once configured as
supervised input, add a resistor of 2.2K, of 8.2K or both on the
input circuit. See the following diagrams.