Premisys ALR 28+14, Reference Manual

Alarm Cards

1-1

Alarm Cards

Introduction

Chapter 1
Alarm Cards

1.1

Introduction

This chapter provides installation, configuration, and troubleshooting information for the 
Alarm cards. These cards are labeled as the ALR 4+4 (8401), ALR 4+3PF (8402), and ALR 
28+14 (8403) Cards on their faceplate ejectors.

The Alarm cards allow the system to report alarms to external alarm annunciators and other 
systems. Each card also receives alarms reported by external devices. Each card has switches 
for outbound alarms, and sensors that detect incoming alarms from the external equipment.

Only one Alarm card can reside in the integrated access system at a time. These cards are 
discussed below.

Each card has two alarm notification modes. The "Switch/Act On" (outbound) function allows 
you to report internal system alarms to external devices, such as buzzers, bells, and lights. The 
"Sensor/Trig On" (inbound) function allows you to receive external alarms through sensors on 
the card.

1.2

Alarm Card Descriptions

1.2.1

ALR 4+4 Card Description (8401)

The ALR 4+4 Card has four outbound alarm switches and four inbound alarm sensors. The 
outbound switches report internal alarms to external devices by triggering form-C relay 
contact closures (120 VAC, 0.5A). The inbound sensors report external alarms to the system. 
All external alarms reported by sensors are listed in the alarm history file.

An integrated access system with an ALR 4+4 Card can respond to four external alarms for 
control of environmental and security conditions, and also provide four internal alarms to 
outside alarm indicators. For example, a critical alarm can illuminate a red light at the office.

Each inbound alarm sensor has the capability of responding to one external condition. The 
alarms appear on the screen in the alarm section, showing the alarm as a SENSOR alarm and 
includes the slot number and sensor number of the condition (e.g., SENSOR U7-4). 

The inbound alarm sensors can be optioned to utilize either 12V or 48V. Both JP1 and JP2 
jumpers should be set for the proper voltage. The inbound sensors are isolated from ground.