Maxsys PC4020 User Manual

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PC4020 Design Notes TABLE OF CONTENTS
Page
Section 1 - System Overview
1.0 Introduction.................................................................................................................. 3
1.1 Terminology................................................................................................................. 3
1.1.1 Modules........................................................................................................... 3
1.1.2 Enrolling ..........................................................................................................3
1.1.3 COMBUS .........................................................................................................3
1.1.4 Partitions..........................................................................................................3
1.1.5 Common Zones ...............................................................................................4
1.1.6 Downloading ...................................................................................................4
1.1.7 512 Event History Buffer ................................................................................. 4
1.1.8 Programming...................................................................................................4
1.2 Parts List...................................................................................................................... 4
1.3 Additional Accessories................................................................................................ 5
1.3.1 LCD4500 Module - LCD Keypad .................................................................... 5
1.3.2 PC4108 and PC4116 Modules - Zone Expanders..........................................5
1.3.3 PC4204 Module - Power Supply/Relay Outputs............................................. 5
1.3.4 PC4216 Module - Low Current Output Module ..............................................5
1.3.5 PC4400 Module - Printer Output .....................................................................5
1.3.6 PC4600 and PC4650 Modules - Graphic Annunciator Kits ........................... 5

Maxsys PC4020 Specifications

General

Keypads	Up to 8
Display	LCD
Input Voltage	16.5 VAC
Operating Temperature	0°C to 49°C (32°F to 120°F)
Communication Formats	Contact ID, SIA
Power Supply	16.5 VAC, 40 VA
Battery Backup	12 V, 7 Ah rechargeable sealed lead-acid
PGMs	2
Communication	PSTN
Communication (additional)	Optional GSM, IP
Dimensions	290 mm x 298 mm x 86 mm

Summary

Section 1 - System Overview

1.0 Introduction

Provides an overview of the PC4020's flexibility and features for demanding security requirements.

1.1 Terminology

Defines key terms used in the PC4020 system, crucial for installation and operation.

1.1.1 Modules

Explains that modules (keypads, expanders, boards) must be enrolled for proper system function.

1.1.2 Enrolling

Describes the process of adding modules to the system, starting with the first keypad.

1.1.3 COMBUS

Defines the COMBUS as the 4-wire cable connecting all system modules in parallel.

1.1.4 Partitions

Explains partitions as independent areas within the system, up to 8, with assigned zones and codes.

1.1.5 Common Zones

Defines common zones assigned to multiple partitions, armed only when all are armed.

1.1.6 Downloading

Describes the PC4020's upload/download capability using PC and modem for programming.

1.1.7 512 Event History Buffer

Details the 512-event buffer storing time/date-stamped events, retrievable via software.

1.1.8 Programming

Explains the PC4020's menu-driven programming method, easily done via keypad.

1.2 Parts List

Lists the essential components included with the PC4020 system for installation.

1.3 Additional Accessories

Introduces additional modules and keypads that can be connected to expand system capabilities.

1.3.1 LCD4500 Module - LCD Keypad

Describes the LCD4500 keypad for programming and operation, with a limit of 16 per system.

1.3.2 PC4108 and PC4116 Modules - Zone Expanders

Explains zone expanders (PC4108/PC4116) that increase zone capacity up to 128.

1.3.3 PC4204 Module - Power Supply/Relay Outputs

Details the PC4204 for additional power supply (1.5A) and 4 Form 'C' relays for outputs.

1.3.4 PC4216 Module - Low Current Output Module

Describes the PC4216 module providing 16 low-current voltage outputs for programmed activation.

1.3.5 PC4400 Module - Printer Output

Explains the PC4400 module enabling a serial printer connection for on-site event printing.

1.3.6 PC4600 and PC4650 - Graphic Annunciator Kits

Introduces graphic annunciator kits (PC4600/PC4650) for displaying zone status with LEDs.

Section 2 - Installation and Wiring

2.0 Suggested Installation Procedure

Outlines the initial steps for designing a PC4020 installation, focusing on system layout.

2.1 Step 1 - System Layout

Covers drawing a building sketch, marking zones, locating modules, assigning partitions and keypads, and drawing COMBUS runs.

2.2 Step 2 - Calculate Product Required - Current Required

Guides calculating the number of modules and detectors and their total current draw.

2.3 Step 3 - Calculate Power Requirements

Details calculating total system power needs, considering the main panel and PC4204 modules.

2.3.1 Calculate Current Required

Explains the main panel's 500 mA limit and when PC4204 modules are needed for additional current.

2.3.2 Advantages in Determining Line Loss

Highlights the benefit of identifying line loss issues early to correct wiring or component placement.

2.3.3 How to Determine Line Loss

Introduces a method to determine if line loss requires additional PC4204 modules.

2.3.4 Step by Step Procedure for Calculating Line Loss

Provides a step-by-step guide to calculate line loss, involving block diagrams and charts.

2.3.5 Step by Step Example of Calculating Line Loss

Demonstrates calculating line loss through a practical example with a block diagram and distances.

2.3.6 Locating PC4204 Modules/Correcting Line Loss Problems

Discusses three methods to rectify line loss, including wiring changes, thicker wire, and PC4204 placement.

2.3.7 Base Number Chart

Lists base numbers for modules and how they increase with additional power-requiring devices.

2.3.8 Power Units Chart

Provides a chart listing power units available for different wire gauges (24, 22, 18, 16 AWG).

2.3.9 Power Unit Calculation Chart - Distance vs Base Number

Offers a chart to calculate Power Units needed based on distance and module base numbers.

2.3.10 Line Loss Calculations - Second Method

Presents an alternative method for line loss calculation, involving voltage measurement at modules.

2.3.11 Final Line Loss Test

Describes a final test procedure to verify calculations and confirm no excessive line loss.

2.3.12 When to Perform Line Loss Calculations

Advises when line loss calculations should be performed, including pre-wiring and troubleshooting.

2.4 COMBUS Power

Explains the main panel's power limit and the requirement for PC4204 modules for additional power.

2.4.1 How to Wire a PC4204 for COMBUS Power

Details the specific wiring diagram for a PC4204 module used to provide COMBUS power.