Nexus 21 A1557 technical specifications

Document Ref: Nex8inst.doc/Rev0 09.07.00 Page 1 of 30 Originator MC Checked by AC___Approved by JBJ__

Nexus 1-8 Loop (A1557)

Analogue Addressable Control Panel

Installation and Commissioning Manual

1.0 Introduction and Guided Tour 1

2.0 Cabinet Installation 7

3.0 Engineer’s Functions 9

4.0 Panel Check 10

5.0 Panel Configuration 10

6.0 Commissioning 20

Appendices

i. Technical Specifications 24

ii. Other Relevant Documentation 25

iii. Compatible Loop Devices and Panel Responses 27

1.0 Introduction

Thank you for purchasing this Nexus 1-8 loop analogue addressable control panel. This range

of panels is designed to comply with to the requirements of BS5839 part 4 1988. The Nexus 1-

8 loop panel will provide the user with many years of reliable service.

IMPORTANT NOTE: Read the instructions carefully before commencing installation and

commissioning.

1.1 Guided Tour

Contents

Main Nexus 1-8 Loop (A1557) Analogue Addressable Control Panel Installation and Commissioning Manual Contents Page 1.1.1 Exploded View and Mechanical Data/Text Identification 1.1.2 User Controls & Indications Document Ref: Nex8inst.doc/Rev0 09.07.00 Page 3 of 30 Originator MC Checked by AC__ 7 2 DISPLAY 1.1.5 A1557 Motherboard Showing Essential Engineering Components B/+ A/- SCN B/+ A/- SCN FLT 24V 0V PROC RESET NODE ADDRESS DIL SWITCH ! ! Document Ref: Nex8inst.doc/Rev0 09.07.00 Page 4 of 30 Originator MC Checked by AC__ Lithium Battery LBAR 1 Alarm List. LBAR2 Alarm List. 1.1.6 Power Supply Illustration Document Ref: Nex8inst.doc/Rev0 09.07.00 Page 6 of 30 Originator MC Checked by AC__ 1.1.7 Loop Card Expansion Motherboard 1.1.8 Programmable Expansion Boards (ii) A1536 8 Way Programmable Input/Output Alarm Board 2.0 Cabinet Installation Page Page Page 5.3 Accessing Engineers Menu 5.4 Setting Time & Date 5.5 Isolate 5.6 Edit 5.7 Configure Loop 5.8 Device Status Page Page Page Page Page 5.20 Print Memory Contents 5.21 Print Cause and Effect Data 5.22 Options Available at Access Level 3 6.0 Commissioning 6.1 Introduction Page 6.5 A1535 (Programmable Relay Expansion Boards) and A1536 (Programmable Alarm Expansion Boards) 6.6 Auxiliary Circuits 6.7 Cause & Effect Editing 6.8 Final Commissioning Appendices i Technical Specifications ii Other Relevant Documentation iii Compatible Loop Devices and Panel Responses