Rosslare AC-225? AC-225IP? AC-225U Guia do Utilizador descarregar pdf (Página 17)

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.

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