Simplex 4020 Troubleshooting Guide

i
Tables and Figures In this Document................................................... ii
Chapter 1 About This Document
Introduction ....................................................................................... 1-1
Chapter Content................................................................................. 1-1
Chapter 2 Basic System / Sub-Assembly
General Description........................................................................ 2-1
Master Controller Assembly ........................................................... 2-1
Standard Slave Card Assembly ..................................................... 2-1
Expansion Cards ............................................................................ 2-2
Addressing...................................................................................... 2-2
4020 Master Controller....................................................................... 2-3
Description and Functions.............................................................. 2-3
System Block Diagram (Universal Supply) .................................... 2-4
System Block Diagram (Intelligent Supply).................................... 2-5
Master Controller PCB Layout........................................................ 2-6
Master Controller PCB Assembly I/O Connectors ......................... 2-6
4020 Standard Slave.......................................................................... 2-7
Description and Functions.............................................................. 2-7
Application...................................................................................... 2-7
Standard Slave PCB Layout........................................................... 2-8
Standard Slave PCB Assembly I/O Connectors ............................ 2-8
4020 Power I/O Interface................................................................... 2-9
Description and Functions.............................................................. 2-9
Application...................................................................................... 2-9
Power I/O Interface PCB Layout .................................................. 2-10
Power I/O Connector Voltage Points............................................ 2-10
Power I/O Interface PCB Assembly I/O Connectors.................... 2-11
4020 Power Supply.......................................................................... 2-12
Description and Functions............................................................ 2-12
Application.................................................................................... 2-12
Power Supply I/O Connectors...................................................... 2-12
Chapter 3 4020 Problem Experience
Overview......................................................................................... 3-1
Where Problems are likely to Reside ............................................. 3-1
Troubleshooting Difficulty............................................................... 3-1
General Issues................................................................................... 3-2
Problems Associated with Assembly/Dis-Assembly and Installation. 3-4
Problems Associated with Power Supplies........................................ 3-6
Chapter 4 Troubleshooting Procedures
General Approach .......................................................................... 4-1
Matching Standard Slave, Power Supply and Software Versions . 4-1
Master Controller Initialization........................................................ 4-3
+5V Power...................................................................................... 4-3
Panel Alarm Sounding and can not be Silenced............................ 4-4
A-tap Problems............................................................................... 4-4
B-tap Problems............................................................................... 4-5
+28V Power.................................................................................... 4-5
Standard Slave Initialization........................................................... 4-5
36V Mapnet Power......................................................................... 4-6
Troubleshooting Chart.................................................................... 4-7
Chapter 5 Standard Slave Software Initialization
Standard Slave Initialization Sequence.......................................... 5-1
Table of Contents

Simplex 4020 Specifications

General

Type	Fire Alarm Control Panel
Manufacturer	Simplex
Model	4020
Display	LCD
Frequency	50/60 Hz
Battery Backup	Yes
NAC Outputs	4
Power	120/240 VAC
Voltage	120/240 VAC
Operating Temperature	0°C to 49°C (32°F to 120°F)
Humidity Range	Up to 93% RH, non-condensing
Communication Protocol	Optional