Cisco Physical Access Gateway Hızlı Başlangıç Kılavuzu - Sayfa 14

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Type

Input interfaces

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Description

Ten input interfaces used to sense the contact closure. Each input can be configured as

supervised or unsupervised and can be configured to sense a Normally Open (NO) or

Normally Closed (NC) contact.

• An unsupervised input senses a simple contact closure state, including Normal or Alarm.

When connected to open contacts, the terminal voltage range is 4V to 5V. For closed

contacts, the voltage range is 0V to 0.7V.

• A supervised input senses four contact states, including Normal, Alarm, Open and

Short. These inputs require 1K End-Of-Line (EOL) termination resistors installed at the

contacts (two resistors are included in the accessory kits for each Input port). Refer to

the

Cisco Physical Access Gateway User Guide

termination resistors.

Power fail input: an unsupervised input that raises a "power fail" alarm when the circuit is

open. Can be configured as an additional unsupervised port. An unsupervised input indicates

only normal or alarm. The corresponding LED is red when circuit is open (when no input is

connected).

Tamper input: an unsupervised input that raises a "tamper" alarm when the circuit is open.

Can be configured as an additional unsupervised port. An unsupervised input indicates only

normal or alarm. The corresponding LED is red when circuit is open (when no input is

connected).

for instructions on installing the

78-18554-05