SILENT KNIGHT 4820 Installation Manual
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SILENT KNIGHT 4820 Installation Manual

SILENT KNIGHT 4820 Installation Manual

Control/communicator
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Contents
Section 1
1.1 Overview of System Features ..................................................................................... 1-1
1.1.1
Compatible Modules ........................................................................................ 1-2
1.1.2
Accessory Enclosure ........................................................................................ 1-5
1.2 How to Use this Manual .............................................................................................. 1-5
1.3 How to Contact Silent Knight ...................................................................................... 1-5
1.4 Agency Requirements .................................................................................................. 1-6
1.4.1
Telephone Requirements ................................................................................. 1-6
1.4.2
FCC Warning ................................................................................................... 1-6
1.4.3
UL Requirements ............................................................................................. 1-7
1.4.3.1 Household Burglary Warning System ................................................... 1-8
1.4.3.2 Grade A Mercantile ............................................................................... 1-8
Hardware: ............................................................................................................ 1-9
Programming: ...................................................................................................... 1-9
1.4.3.4 Access Control UL-294 ......................................................................... 1-9
Section 2
.................................................................................................................... 2-1
2.1 Setting System Time and Date ..................................................................................... 2-2
To set the time: .................................................................................................... 2-2
To set the date: ................................................................................................... 2-2
2.2 Sending Data to the Panel ............................................................................................ 2-3
2.3 Identifying Serial Numbers and Revision Levels ........................................................ 2-4
2.3.1
Operating System Revision Level ................................................................... 2-4
2.3.2
Hardware Revision Levels and Serial Numbers .............................................. 2-4
2.4 Installation Records ..................................................................................................... 2-4
2.4.1
Serial Number Quick Reference ...................................................................... 2-5
2.4.1.1 Zone Record .......................................................................................... 2-6
150961
................................................................................................................. 1-1
i

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Summary of Contents for SILENT KNIGHT 4820

  • Page 1: Table Of Contents

    1.1.1 Compatible Modules ..................1-2 1.1.2 Accessory Enclosure ..................1-5 1.2 How to Use this Manual ....................1-5 1.3 How to Contact Silent Knight ..................1-5 1.4 Agency Requirements ....................1-6 1.4.1 Telephone Requirements ................. 1-6 1.4.2 FCC Warning ....................1-6 1.4.3...
  • Page 2 4.3 Board Layout ....................... 4-2 4.4 Terminal Strip Description ..................4-3 4.5 Power Limiting Circuits ....................4-4 4.6 Power Switch ....................... 4-5 4.7 Mounting the Model 4821/4820 Panel ................ 4-5 4.8 Wire Routing ........................ 4-6 4.9 Current Draw Worksheets ................... 4-7 4.9.1 Sample Worksheets ..................
  • Page 3 Contents 4.9.2 Worksheet for Silent Knight Modules ............4-9 4.9.3 Worksheet for Auxiliary Devices (not Silent Knight) ........4-10 4.9.4 Battery Calculation Worksheet ..............4-11 4.9.5 Standby Current For DACT Compliant Installations ........4-11 4.10 AC Power Transformer ....................4-12 4.11 Backup Battery Connection ..................
  • Page 4 Model 4821/4820 Control/Communicator Installation Manual 4.20 Telephone Line Connection ..................4-32 4.20.1 Second Phone Line Monitor Connection (Model 4875) ........ 4-33 4.20.2 Ground Start Relay Connection (Model 5211) ..........4-34 4.21 Built-in Relay ......................4-34 4.22 DACT Compliant Wiring ..................4-35 4.22.1 Trouble Output Relay ..................
  • Page 5 Contents Section 6 Programming ......................6-1 6.1 Downloading ........................ 6-1 6.2 Touchpad Programming ....................6-1 6.2.1 General Operation .................... 6-1 6.2.2 The Main Menu ....................6-2 6.2.2.1 1-Install Device ..................6-3 6.2.2.2 2-Edit System Options ................6-3 6.2.2.3 3-Edit Partition ..................6-4 6.2.2.4 4-Edit Ph.
  • Page 6 Model 4821/4820 Control/Communicator Installation Manual Section 7 Reporting ........................7-1 7.1 Compatible UL Listed Receivers ................. 7-1 7.2 SIA Event Codes ......................7-2 7.3 Ademco Contact ID Event Codes ................7-6 7.4 ASCII Event Descriptions ..................7-10 Section 8 Troubleshooting ....................

  • Page 7: Introduction

    8 Universal Schedules (with 20 time ranges each) 2.5 amps power available, expandable to 5.0 amps with 4195 Auxiliary Power Module The 4821 and 4820 are shipped with a Model 9227 transformer and 16 Model 7628EOL resistors (each 4.7 k ohm). 150961...

  • Page 8: Compatible Modules

    Model 4821/4820 Control/Communicator Installation Manual 1.1.1 Compatible Modules Table 1-1 shows the modules available for use with the 4821/4820. The third column of the chart shows where to find installation instructions for the module. (See Figure 1-1 for a block diagram or compatible units.)
  • Page 9 Introduction Table 1-1: Modules Compatible with the Model 4821/4820 See Section (for more Model Description information) 4824 Serial/Printer Interface Provides one RS-232 serial port and one parallel printer 4824 Installation section of port, which can be programmed to output events in this binder (P/N 150911).
  • Page 10 Model 4821/4820 Control/Communicator Installation Manual 1. Not UL listed with 4820 control panel. 2. Not UL listed for access control. 3. Can not be used with the 4820 control panel. Figure 1-1 Model 4821/4820 and Compatible Modules 150961...

  • Page 11: Accessory Enclosure

    “snap tracks”, a model 4890 alarm accessory enclosure is required. (See Section 1.4.3 for UL requirements.) The Model 4890 has the same dimensions as the 4821/4820 control panel enclosure and contains two additional snap tracks. One snap track is designed for smaller width boards such as the 4815 control module.

  • Page 12: Agency Requirements

    Model 4821/4820 Control/Communicator Installation Manual Agency Requirements 1.4.1 Telephone Requirements If requested by the telephone company, the following information must be provided before connecting this device to the phone lines: Manufacturer: Silent Knight Security Systems Model Number: 4821/4820 FCC Registration Number:...

  • Page 13: Ul Requirements

    Introduction 1.4.3 UL Requirements If installed in accordance with these requirements, the Model 4821/4820 is UL listed for Grade A Mercantile, Local Police Station Connect with Basic Line Security, and Grade B and C Central Station Service. Follow the requirements below if you are installing a UL listed application. See Section 1.4.3.1 for Household Fire and Burglary Warning System installation requirements.

  • Page 14: Household Burglary Warning System

    4. All unused knockout holes on the cabinet must be plugged using bolts and washers. (Model 7600 is a kit available from Silent Knight for this purpose.) See Section 4.7 for installation instructions. 5. Four pan head screws #8x3”, type AB (thread forming tapping screws) must be placed in the 4821/4820 cabinet cover to increase the panel’s attack resistance.

  • Page 15: Commercial & Residential Fire Digital Alarm Communicator Transmitter (Dact) Ul 864, Nfpa 72 (Chapter 4)

    Transmitter (DACT) UL 864, NFPA 72 (Chapter 4) The DACT listing allows the 4821/4820 to be used to monitor an existing local fire alarm control and/or a sprinkler system. For the 4821/4820 to be used as a DACT, the following...
  • Page 16 Model 4821/4820 Control/Communicator Installation Manual 1-10 150961...

  • Page 17: Quick Start

    When the message “482x Engaged” (x indicates that the display would read 1 for a 4821, or 0 for a 4820) is displayed, it means the system has booted up successfully. The default date and time is displayed.

  • Page 18: Setting System Time And Date

    Model 4821/4820 Control/Communicator Installation Manual Setting System Time and Date To set the time: ENTER 1. Press [Code]. (Installer Code is factory-programmed as 1234.) 2. At the menu prompt, enter to select “Time”. ENTER 3. Enter digit(s) for hour in 24-hour military format, then press ENTER 4.

  • Page 19: Sending Data To The Panel

    4824 Direct. This option is for directly connecting the 4824 to the computer using a null modem cable (both the computer and the 4821/4820 are on-site). 3. If you select either 4824 option (2 or 3), you will be prompted to select the 4824 from the list of 4824s installed in the system.

  • Page 20: Identifying Serial Numbers And Revision Levels

    Model 4821/4820 Control/Communicator Installation Manual Identifying Serial Numbers and Revision Levels This section describes how to determine the levels of hardware and 4821/4820 software that are used with your panel. 2.3.1 Operating System Revision Level STAT Press to see a display of the revision date.

  • Page 21: Serial Number Quick Reference

    Quick Start 2.4.1 Serial Number Quick Reference Use the chart below to keep track of hardware device serial numbers. Customer Name __________________________________ Location ________________________________________ Account Number _________________________________ Installation Code _________________________________ Device # Description Serial # Device # Description Serial # 4421 Door Access Module / 4880 Status Output Module 4860 Touchpads...

  • Page 22: Zone Record

    Model 4821/4820 Control/Communicator Installation Manual 2.4.1.1 Zone Record Use the charts in this section to record zone identification information. Table 2-1: Internal Zones Hardware Zone # Location Partition # Areas Point 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8...
  • Page 23 4825 Hardwire Zone Expander ______Serial Number ____________Device Number _____ Zone H/W Pt Location Partition Areas Zone H/W Pt Location Partition Areas 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8...
  • Page 24 4815 Expander Loop1 Addresses Serial Number ________Device Number ____ Zone H/W Pt Location Partition Areas Zone H/W Pt Location Partition Areas Loop1, Addr 1 1 2 3 4 5 6 7 8 Loop1, Addr 33 1 2 3 4 5 6 7 8 Loop1, Addr 2 1 2 3 4 5 6 7 8 Loop1, Addr 34...
  • Page 25 4815 Expander Loop2 Zone H/W Pt Location Partition Areas Zone H/W Pt Location Partition Areas Loop2, Addr 1 1 2 3 4 5 6 7 8 Loop2, Addr 33 1 2 3 4 5 6 7 8 Loop2, Addr 2 1 2 3 4 5 6 7 8 Loop2, Addr 34 1 2 3 4 5 6 7 8...
  • Page 26 Model 4821 Control/Communicator Installation Manual 2-10 150962...

  • Page 27: Access Control Installation And Operation

    Access Control Installation and Operation This section of the manual describes the installation of access control hardware manufactured by Silent Knight and applies to the 4821 control panel only. Section 4 of this manual describes installation of other required or optional hardware devices.
  • Page 28 Model 4821/4820 Control/Communicator Installation Manual Table 3-1: Model 4421 Terminal Description Wire Name Terminal Description Electrical Rating Color 1 S- Expansion Bus (-) 0 VDC (circuit ground) 2 S+ Expansion Bus (+) 12 VDC, 1 Amp max. Expansion Bus (data)

  • Page 29: Model 4421 Connection To The 4821

    Access Control Installation and Operation 3.1.1 Model 4421 Connection to the 4821 The 4421 Interface connects to the 4821 panel via the SBUS. Connect the 4421 to the panel as shown in Figure 3-2. See Section 4 for complete information about SBUS device connections. Figure 3-2 Wiring Diagram 4421of N to the Control Panel 150963...

  • Page 30: 4205 Touchpad Connection To 4421

    Model 4821/4820 Control/Communicator Installation Manual 3.1.2 4205 Touchpad Connection to 4421 The 4205 Access Control Touchpad is connected to the 4421 as shown in Figure 3-3. Figure 3-3 Model 4421 to 4205 Connection Note: The Model 4205 is not UL listed for access control.

  • Page 31: Card/Proximity Reader Installation

    Access Control Installation and Operation Card/Proximity Reader Installation The Model 4421 Access Control Interface is compatible with 26-bit (plus a leading and trail- ing parity bits), 24-bit (plus a start-bit and a trailing parity bit), 32-bit, 34-bit (32 data plus a start-bit and a trailing parity bit), and 34-bit (32 data plus a leading and trailing parity bit) Wiegand-format readers.
  • Page 32 Model 4821/4820 Control/Communicator Installation Manual If the card readers will be in a location where they will be exposed to snow, mount in a verti- cal position to prevent accumulated snow from clogging the card slot. 150963...

  • Page 33: Wiring The 4300 Swipe Card Reader

    Access Control Installation and Operation 3.2.3 Wiring the 4300 Swipe Card Reader Wire the swipe card reader to the 4421 Door Access Module as shown in Figure 3-5. The card reader LED is on when the door relay is activated. The LED is off when the relay is deacti- vated or when there is no power.

  • Page 34: Wiring The 4330, 4340 And 4350 Proximityreaders

    Model 4821/4820 Control/Communicator Installation Manual 3.2.4 Wiring the 4330, 4340 and 4350 ProximityReaders Wire the Proximity Reader to the 4421 Door Access Module as shown in Figure 3-6. The card reader LED is on when the door relay is activated. The LED is off when the relay is deacti- vated or there is no power.

  • Page 35: Wiring The 4860C Touchpad For Door Access

    Access Control Installation and Operation Wiring the 4860C Touchpad for Door Access The 4860C commercial touchpad can be used as a door access station. The zone inputs on the back of the touchpad can be wired to a door contact or could be used for any other purpose. *Use Cable Assembly 130375 *Use Cable Assembly...

  • Page 36: Access Control Operation

    Model 4821/4820 Control/Communicator Installation Manual Table 3-2: Connector Descriptions P2 (Card Reader) P4 (Door Access) (P/N 130375) (P/N 130378) Description Description Number Wire Color Number Wire Color Circuit Ground Black C+ is +12V Brown Brown Zone Input 1 Data 0’s...

  • Page 37: End-User Operation

    Access Control Installation and Operation 3.4.2 End-User Operation Normal end-user door access operation (accessing a door, opening an outside door from within, and so on) are described in the Census 4821 Owner’s Manual (P/N 150952). They are summarized below: Opening an access controlled door Present your card to the card reader.

  • Page 38: Manually Changing Door Schedules

    Model 4821/4820 Control/Communicator Installation Manual 3.4.3 Manually Changing Door Schedules DOOR BYPS menu is for changing door access schedules from the touchpad. You can use this feature to temporarily override door schedules. Any operations made using the touchpad will be overridden the next time the schedule for the door takes effect.

  • Page 39: Anti-Passback Feature

    Access Control Installation and Operation 3.4.5 Anti-Passback Feature The anti-passback feature prevents users from giving access to others by “passing back” their access cards. In a typical anti-passback installation, users must “register” themselves by accessing a door programmed as Entry when they enter the building. They will only be allowed to leave from a door programmed as Exit.

  • Page 40: Anti-Passback Operations

    Model 4821/4820 Control/Communicator Installation Manual 3.4.6 Anti-Passback Operations DOOR ENTR menu is for controlling the anti-passback feature. It allows you to change users’ anti-passback status so that they can access or be prevented from accessing the system. DOOR ENTR When you press [Maintenance or Installer’s Code], the following menu options...

  • Page 41: Egress Fail-Safe Override Application

    Access Control Installation and Operation Egress Fail-safe Override Application An egress fail-safe override is an optional configuration that can be used to give the installa- tion an additional means of exit through access controlled doors in the case of power loss or a system failure.
  • Page 42 Model 4821/4820 Control/Communicator Installation Manual Note: Input 1 must be programmed for “Not ready” on short. Figure 3-10 Fail-safe Override N.O. Configuration to a Door Access Module 3-16 150963...
  • Page 43 Access Control Installation and Operation Figure 3-11 Fail-safe Override N.C. Configuration to a Touchpad Figure 3-12 Fail-safe Override N.O. Configuration to a Touchpad 150963 3-17...
  • Page 44 Model 4821/4820 Control/Communicator Installation Manual 3-18 150963...

  • Page 45: Control Panel Description And Installation

    Control Panel Description and Installation Warning: To avoid the risk of electrical shock, do not apply power to the Model 4821/4820 until you have read these instructions carefully. This section describes how to install the control panel and some accessories, including com- patible add-on modules, such as smoke detectors and signaling devices.

  • Page 46: Board Layout

    Model 4821/4820 Control/Communicator Installation Manual Board Layout Figure 4-1 shows the Model 4821/4820 printed circuit board. Figure 4-1 Model 4821/4820 Printed Circuit Board 150964...

  • Page 47: Terminal Strip Description

    Control Panel Description and Installation Terminal Strip Description Table 4-1: Control Panel Terminal Descriptions Name Terminal Description Electrical Ratings AC Input 18 VAC, 60 Hz, 50VA AC Input 18 VAC, 60 Hz, 50VA EARTH Earth Ground 0 VDC N.O. Relay Contact (Normally Open) 2.5 Amps max.

  • Page 48: Power Limiting Circuits

    Zones 15 and 16 Power Output Zone 16 Input T-RING Telco Ring T-TIP Telco Tip P-RING Premises Ring P-TIP Premises Tip Power Limiting Circuits The Model 4821/4820 is power-limited for over-current protection. When you remove the short, circuits self-restore. 150964...

  • Page 49: Power Switch

    If you are installing a UL Grade A Mercantile installation, all unused knockout holes must be plugged using bolts and washers. (Model 7600 is a kit available from Silent Knight for this purpose. 6 sets per package.) Use the following steps to plug the knockout holes: 1.

  • Page 50: Wire Routing

    Model 4821/4820 Control/Communicator Installation Manual Wire Routing Figure 4-3 is an example of how Model 4821/4820 wires should be routed through the cabinet in order to maintain one-quarter inch spacing between power limited and non-power limited circuits. Figure 4-3 Sample Wire Routing...

  • Page 51: Current Draw Worksheets

    Figure 4-4 and Figure 4-5 are sample worksheets. (They have already been filled out to serve as examples.) Blank worksheets for your installations are in Sections 4.9.2 and 4.9.3. 4.9.1 Sample Worksheets Figure 4-4 Sample Silent Knight Module Current Worksheet 150964...
  • Page 52 Model 4821/4820 Control/Communicator Installation Manual Figure 4-5 Sample Compatible Module Current Worksheet 150964...

  • Page 53: Worksheet For Silent Knight Modules

    5211 Ground Start Relay (1 max.) Alarm: 18 mA Subtotal of current ratings for Silent Knight devices Standby Alarm Note: Total of all 4421s and 4860s combined. Note: The 4884 shares its power with the auxiliary output. The auxiliary output is rated at 1A total current for all devices.

  • Page 54: Worksheet For Auxiliary Devices (Not Silent Knight)

    4.9.3 Worksheet for Auxiliary Devices (not Silent Knight) Use Table 4-3 for recording current draw for other devices compatible with the 4821/4820 that are not manufactured by Silent Knight (for example, signaling devices and smoke detec- tors). Copy this page if you need additional lines to list devices.

  • Page 55: Battery Calculation Worksheet

    In order to meet the 24-hour standby requirement the total standby current Must Not exceed 475mA for the system using both the 4821/4820 Control Panel and the 4195 Auxiliary Power Supply. The combination of these supplies provides 14 amp hours of standby power.

  • Page 56: Ac Power Transformer

    All circuitry in the Model 4821/4820 system is electrically isolated from this earth terminal on the 4821/ 4820 main circuit board. There should be no connections to this terminal other than the earth connection for grounding the metal cabinet.

  • Page 57: Backup Battery Connection

    Control Panel Description and Installation 4.11 Backup Battery Connection The Model 6712 is a 12 VDC 7AH gell cell battery available from Silent Knight for use with the 4821/4820. (Note that the battery does not charge when system power is off.) A low battery trouble condition exists if the battery voltage drops below 10.2 VDC.

  • Page 58: 4195 Auxiliary Power Supply Installation

    Figure 4-8 shows the location of LEDs for battery reversal and output overload. It also shows how to wire the 4195. If you are using the 4195 to power smoke detectors, connect the 4195 CONTROL terminal to the 4821/4820 +SMK terminal. For powering other types of devices, connect CONTROL to +12V.

  • Page 59: Sbus

    Control Panel Description and Installation 4.13 SBUS Most modules available for use with the 4821/4820 connect via a four-wire serial bus (SBUS). There are two SBUS connections that are referred to in this manual as “SBUS1” and “SBUS2”. Each SBUS is a four-wire serial bus containing two power and two data conductors. The power conductors are identified as S- (system ground) and S+ (+10 to +14 volts).

  • Page 60: Distribution Of Modules Between Sbus1 And Sbus2

    Model 4821/4820 Control/Communicator Installation Manual 4.13.2 Distribution of Modules Between SBUS1 and SBUS2 SBUS modules can be distributed between the two serial buses in any combination. Note: In a UL installation, each SBUS must have at least one touchpad. Figure 4-10 Sample SBUS Connections...

  • Page 61: Number Of Sbus Devices

    The table below shows the maximum number of devices and maximum distance from the 4821/4820 for SBUS devices, assuming a maximum of 2 volts of line drop and 100 mA of current per device. Following these guidelines guarantees that there will be sufficient voltage in the worst case (when the battery voltage is 10V or greater and when all devices are located at the end of the wiring).

  • Page 62: Touchpad Installation

    Model 4821/4820 Control/Communicator Installation Manual 4.14 Touchpad Installation This section describes installation of a touchpad for basic system operation. For information about how to install 4860C touchpads as input zones, see Section 4.15.5. 4.14.1 Touchpad Specifications • When installed for use as an access control system the touchpad must be located inside the protected premises.

  • Page 63: Wiring Touchpads

    4.14.3 Wiring Touchpads Figure 4-12 shows how to connect a Model 4860 touchpad to the 4821/4820. Figure 4-12 Touchpad Wiring 150964...

  • Page 64: Zone Installation

    Model 4821/4820 Control/Communicator Installation Manual 4.15 Zone Installation 4.15.1 Zone Hardware Specifications The chart below lists all input zone hardware types available with the 4821/4820 modules. Hardware Module Description 4821/4820 16 internal zones are built into the 4821/4820 main system board.

  • Page 65: Zone Configuration

    EOL Circuit, and Short Circuit. The value of the EOL resistor used on all input zones in the 4821/4820 system is 4.7k ohms (Silent Knight part number 7628). 4815 SmartSensor zones are an exception because they require a 1.43k ohm resistor (Silent Knight model 4114).

  • Page 66: Zone Configuration Examples

    Model 4821/4820 Control/Communicator Installation Manual 4.15.4 Zone Configuration Examples The chart below shows some commonly used zone hardware configurations and provides examples of how you might want to program the zone for the disarmed and armed responses. UL zones must be end-of-line supervised.
  • Page 67 Control Panel Description and Installation Programmed Programmed State of Zone Disarmed Response Armed Response Open Circuit Trouble Trouble Open circuit hardware fault. EOL Circuit Ready Ready The contact is open and su- pervised. Short Circuit Alarm Alarm The contact is closed or there is a short circuit hard- ware fault.

  • Page 68: Wiring A 4860C As An Input Zone

    Model 4821/4820 Control/Communicator Installation Manual Programmed Programmed State of Zone Disarmed Response Armed Response Open Circuit Not Ready Alarm Open hardware fault or the N.C. contact is open. EOL Circuit Ready Ready The N.C. contact is closed and the N.O. contact is open.

  • Page 69: Zone Response (Debounce) Speed

    4825 type zones. See Section 6 of this manual for details about how to make selections for zone options. Response Speed Available with: Internal 4825 4815 4860C & 4421 (Built into (Hardwire (Serial (Touchpad 4821/4820 Expansion Expansion Zones) board) Zones) Zones) 10 milliseconds (9-18 msec) 100 milliseconds (55 - 100 msec) 250 milliseconds...

  • Page 70: Smoke Detector Wiring And Operation

    This section describes the 4821/4820 reset and smoke verification cycles. Any smoke detec- tors attached to the 4821/4820 must be compatible with the reset cycle. If you are using the smoke verification feature, smoke detectors must also be compatible with the smoke verifica- tion cycle.

  • Page 71: Four-Wire Smoke Detector Wiring

    Figure 4-15 shows how to wire one 4-wire smoke detector to the system. Figure 4-16 shows how to wire multiple 4-wire smoke detectors. Model 7628 EOL Resistor Silent Knight Model 160150 Relay Supervision Module Figure 4-15 Four-wire smoke detector wiring...

  • Page 72: Speaker Wiring

    Model 4821/4820 Control/Communicator Installation Manual 4.17 Speaker Wiring The 4821/4820 can be used with one external and two internal speaker outputs. In UL installa- tions, a bell must be the primary source for alarm annunciation in UL burglary installations. In UL burglary installations speakers can be used as an supplementary source only and are not intended to be used for evacuation purposes.

  • Page 73: Bell Wiring

    Control Panel Description and Installation 4.18 Bell Wiring A bell can be attached to the built-in relay on the 4821/4820 and is factory-programmed for this purpose. A programmable I/O script drives the relay. The script must not be deleted. See the Model 5580 Download Software Installation and Operation Manual (P/N 150925) for information about how to select the script.

  • Page 74: Commercial Bell Wiring

    Model 4821/4820 Control/Communicator Installation Manual 4.18.2 Commercial Bell Wiring A bell can be attached to the built-in relay on the 4821/4820 and is factory-programmed for this purpose. If you are installing a UL commercial burglary system, you must use an Ademco AB12 Bell and Box bell and enclosure.

  • Page 75: 4884 Bell Module Wiring

    Control Panel Description and Installation 4.19 4884 Bell Module wiring The 4884 is plugged directly onto the P2 connector on the 4821/4820 Control Panel. (Refer to Figure 4-21 for placement of 4884 Bell Module on P2 connector.) Figure 4-21 Generic Bell Wiring to 4884 Bell Module and Placement on P2 When using the 4884 with the 4821/4820 Control Panel the Bell Cadence option is set to ANSI.

  • Page 76: Telephone Line Connection

    Model 4821/4820 Control/Communicator Installation Manual 4.20 Telephone Line Connection Connect the 4821/4820 to the telephone line using an RJ31X cord. Silent Knight’s Model 7860 is available for this purpose. Connect as shown in Figure 4-22. Figure 4-22 Telephone Line Connection Note: To comply with industry standards, this product is equipped with line seizure.

  • Page 77: Second Phone Line Monitor Connection (Model 4875)

    The 4875 provides a second phone line connection. It includes the line monitor and ring detec- tor for the second line. Figure 4-23 Location of Dual Phone Line Monitor (Model 4875) on Model 4821/4820 Board Table 4-6: Second Phone Line Monitor Terminal Description...

  • Page 78: Ground Start Relay Connection (Model 5211)

    Figure 4-24 Location of Ground Start Relay (Model 5211) on Model 4821/4820 Board 4.21 Built-in Relay The 4821/4820 board provides contacts for one Normally Open relay rated at 2.5A at 24 VDC. This relay can be used to activate a variety of devices and can be used in combination with programmable I/O statements.

  • Page 79: Dact Compliant Wiring

    4.22.1 Trouble Output Relay A trouble output relay for each power supply, must be connected to a zone input on the 4821/ 4820 Control Panel (see Figure 4-26). The “Zone Type” should be selected as Tamper and the response characteristics as follows:...

  • Page 80: Monitoring An Existing Fire Alarm Control

    Separate zone connections must be made to both the alarm relay and trouble relay when using the 4821/4820 Control Panel to monitor an existing fire alarm control. Zone inputs on the 4821/4820 Control Panel are considered Class B (Style A). Refer to Figure 4-27 and Table 4- 8 for wiring configuration and zone programming requirements.

  • Page 81: Monitoring A Sprinkler System

    Separate zone connections must be made to both the waterflow switch and water shut off valve when using the 4821/4820 to monitor a sprinkler system. Zone inputs on the 4821/4820 Control Panel are considered Class B (Style A). Refer to Figure 4-28 and Table 4-9 for wiring configuration and zone programming requirements.
  • Page 82 Model 4821/4820 Control/Communicator Installation Manual 4-38 150964...

  • Page 83: System Operation

    Software partitions and areas are optional features that allow you to configure the system for a high degree of flexibility. The 4821/4820 can be sub-divided into multiple partitions, each of which can operate as inde- pendent systems. Each 4821/4820 system can have as many as 8 partitions, and each can report to the central station as separate accounts.
  • Page 84 Model 4821/4820 Control/Communicator Installation Manual Figure 5-1 Partitioning The sample applications shown in Figure 5-2 and Figure 5-3 are not acceptable UL applica- tions. See Section 1.4.3 for UL requirements regarding partitions. Figure 5-2 Sample Commercial Application Using Partitioning 150965...
  • Page 85 System Operation Figure 5-3 Sample Residential Application Using Partitioning 150965...

  • Page 86: Touchpad Models

    Figure 5-4 Model 4860C Commercial LCD Touchpad, Model 4205 Slimline Door Access Touchpad and Model 4860R (for Residential burglary. and Fire Installations) Note: The Model 4205 Slimeline Door Access Touchpad cannot be used with the 4820 control Panel. The Model 4205 is not UL listed for access control.

  • Page 87: Display Messages

    System Operation Display Messages This section of the manual shows the types of system messages that display on the touchpad. See Troubleshooting (Section 8) for system trouble messages. 5.3.1 Power Up Messages The panel initializes itself when power is turned on and when downloading occurs. Figure 5-1 shows the types of messages that display on a touchpad during the panel’s initialization rou- tine.

  • Page 88: Normal Display Messages

    Model 4821/4820 Control/Communicator Installation Manual 5.3.2 Normal Display Messages Two 2-line messages alternate on the LCD when the system is inactive. These messages dis- play on all touchpads. Through programming, you can customize the messages for each parti- tion (see Section 6.3.2.1).

  • Page 89: Touchpad Buttons

    System Operation Touchpad Buttons Table 5-1 describes the functions of the touchpad buttons. The operation of the feature depends on the type of menu system (toggle or interactive) that is being used and whether the system is single- or multi-area. See Section 5.5 for more information. Table 5-1: Touchpad Function Buttons Normal Mode Function Toggles zone status between delayed and instant.

  • Page 90: Toggle And Interactive Menu Operations

    In a multi-area system, you must first select areas. End-user operation is fully described in the 4821 Owner’s Manual (P/N 150952) or the Cen- sus 4820 Owner’s Manual (P/N 150842 for residential P/N 150843 for commercial). 150965...

  • Page 91: Interactive Menu Overview

    System Operation Interactive Menu Overview The general structure of the interactive menu system is shown below. Available options will vary depending on whether optional features have been enabled through programming for the area. The chart below shows all available options. Main Menu Press Enter/exit the menu.

  • Page 92: System Operation Summary

    Model 4821/4820 Control/Communicator Installation Manual System Operation Summary Note: If you are using a profile that has not been restricted to a single partition, you will be prompted to select the partition after you enter your access code. Table 5-2: System Operation Summary...
  • Page 93 System Operation Table 5-2: System Operation Summary Steps Interactive Menu Method Toggle Method Reinstate (or unbypass) a Enter a code to activate the menu and, if Press # of zone to reinstate. prompted, select the partition. bypassed zone BYPS Enter the number of the area where the zone you Press A zone cannot be want to reinstate is located.
  • Page 94 Model 4821/4820 Control/Communicator Installation Manual Table 5-2: System Operation Summary Steps Interactive Menu Method Toggle Method Set System Time ENTR + Maintenance or Installer Code. At the menu prompt, enter to select “Time”. ENTR Enter digit(s) for hour in 24-hour military format, then press...
  • Page 95 Note: You cannot manually clear all events in history. All events clear automatically when the panel is powered down. View revision level of the STAT 4821/4820 operating Press system Displays the revision date and time. Activate a Duress Press 2 digits assigned as duress digits, then enter your access code.

  • Page 96: System Maintenance Operations Summary

    Model 4821/4820 Control/Communicator Installation Manual System Maintenance Operations Summary The operations described in the chart below are intended to be performed by the person(s) responsible for installing and maintaining the system. Access privilege rights needed to oper- ate the function are indicated in the chart. See Section 6.3.5 for an explanation of the various types of access rights.
  • Page 97 System Operation Press From Here You Can Press Diagnostics See the 4815 Installation Manual, ENTR [Maintenance or Installer Code] P/N 150909, for information about For Model 4815 Serial Zone these options. Expander. Add or delete users from the Enter the ID at the prompt. (This ENTR is the number of the user, not the [Maintenance or Installer Code]...

  • Page 98: System Test Descriptions

    5.8 for instructions about how to run the tests. 5.9.1 Walk Test The 4821/4820 can perform two types of walk tests, 1) walk test with report and 2) walk test without report. • When a Walk Test without Report is executed, central station reporting is disabled. The system reports a “Test Start”...

  • Page 99: Communicating With The Computer

    System Operation 5.10 Communicating with the Computer This section of the manual describes communication initiated by the panel. See the 5580 Upload-Download Installation and Operation Manual (P/N 150925) for information about communication initiated by the computer. If you are using the 4824 or phone lines to communicate, communication may be initiated from either the panel or the computer.

  • Page 100: Sending Data To And From The Panel

    Model 4821/4820 Control/Communicator Installation Manual 5.10.1 Sending Data To and From the Panel ENTR 1. Press [Maintenance or Installer Access Code]. 2. At the menu, select: - Internal Phone.This option is for downloading via the phone lines. - 4824 Modem.

  • Page 101: Audible Signals Description And How To Reset

    System Operation 5.11 Audible Signals Description and How to Reset Alarm and trouble condition audible signals are listed below in priority order. Condition Speaker Sound Bell Sound How to Silence/Reset Fire Alarm Rapid high-low siren sound. 1 second on, one second off. MUTE Each high-low sound lasts To silence: Press...
  • Page 102 Model 4821/4820 Control/Communicator Installation Manual Condition Speaker Sound Bell Sound How to Silence/Reset Trouble Two short, low-pitch beeps. Not applicable. MUTE Press [Code]. Doorbell 1 Slow two-tone (“ding- Not applicable. Not applicable. dong”) bell sound. Doorbell 2 Slow bell (“ding”) sound.

  • Page 103: Programming

    Section 6 Programming This section of the manual describes all programmable options. The 4821/4820 can be pro- grammed via the touchpad (see Section 6.2) or through the 5580 Upload-Download software (see Section 6.1). If you are using the 5580, you can send the options to the panel from a remote site or through a portable computer (laptop) at the customer site.

  • Page 104: The Main Menu

    Model 4821/4820 Control/Communicator Installation Manual You can use the editing keys as described in Table 1 for programming. Table 6-1: Touchpad Programming Editing Keys Description Press this button to return to the main menu or to the previous level. A prompt will display MUTE for you to confirm the changes made in the editing session.

  • Page 105: 1-Install Device

    Programming 6.2.2.1 1-Install Device From the main menu, press to access the Install Device menu. This menu selection allows you to install or replace SBUS expansion devices. Before using this selection, connect the new device(s) to the SBUS and re-apply the system power. The options for the device can be downloaded using the 5580 software with the device serial num- ber set to 0.

  • Page 106: 3-Edit Partition

    Model 4821/4820 Control/Communicator Installation Manual 6.2.2.3 3-Edit Partition From the main menu, press for editing selected partition options. Select Partition Select the partition to edit. Menu Rate Press to make the menus scroll faster. Press to make the menu scroll slower.

  • Page 107: 5-Reprt Accounts

    Programming 6.2.2.5 5-Reprt Accounts From the main menu, press to edit reporting account information for accounts that use the phone lines as the reporting device. Edit #y,nnnn The main menu allows you to select an account to edit. where y = Priority level Press until the account you want to edit displays on the LCD.

  • Page 108: 7-Edit Profiles

    Model 4821/4820 Control/Communicator Installation Manual 6.2.2.7 7-Edit Profiles From the main menu, press to edit profiles. The system will display a message indicating which profile you are currently editing and the total number of profiles in the system. For example, Editing Profile #1 of 3.

  • Page 109: Selecting Characters For Profile Names

    Programming 6.2.2.8 Selecting Characters for Profile Names Entering characters (letters, symbols, or numbers) is a two-step process in touchpad program- ming. You must first select a set of characters, then select the actual character. To do this, you can follow the menu prompts on the LCD or use Table 6-2 shown in this document. This sec- tion explains both methods.

  • Page 110: Using The Chart (Table 6-3)

    Model 4821/4820 Control/Communicator Installation Manual Example: Suppose your profile is called “Normal” and you want to change the name to “Typ Empl”. STAT 1. When the profile editing keys are scrolling, press to move into the profile name. Your cursor will be positioned under the “l” in “Normal”.

  • Page 111: 8-Edit Schedules

    Programming 6.2.2.9 8-Edit Schedules From the main menu, to edit, add, or remove time schedules for the panel. The touchpad will display Time Sched a ( b ), where a = the time schedule you are currently editing, and b = which number it is in the time schedule list (the first time schedule displayed will tell you the total number of time schedules in the system).

  • Page 112: 9-Delete Options

    Model 4821/4820 Control/Communicator Installation Manual 6.2.2.10 9-Delete Options Note: This option is available only in Safe Mode. Safe mode is a mode of system operation that enables you to bypass a problem at the panel and reset the options to their default values. It is useful when a condition exists at the panel that is preventing you from operating your system or communicating with the downloading software.

  • Page 113: Programmable Options

    When you choose to edit the “482x Panel” from the System Devices List menu, the program- mable options shown below are available to change. These options are also available from the 4821/4820 System SubMenu screen. Table 6-4: General Systems Screen Options and Descriptions...
  • Page 114 Model 4821/4820 Control/Communicator Installation Manual Table 6-4: General Systems Screen Options and Descriptions Option Description Default Lock Out Enabled If enabled, user codes are monitored when entered at the touchpad. Disabled When an invalid user code is entered consecutively three times in a row, the system locks out the user, by ignoring any touchpad activity for 30 seconds.
  • Page 115 Programming Table 6-4: General Systems Screen Options and Descriptions Option Description Default Up/Download Enter 4-8 digits for the code that the up/download computer will 123456 Computer Code use when calling the panel. Up/Download Enter the phone number of the computer running the 5580 [blank] Computer Phone downloading software.

  • Page 116: Dialer Screen

    Model 4821/4820 Control/Communicator Installation Manual 6.3.1.2 Dialer Screen If you are editing options for the dialer, the following options are available for each phone line. Option Description Default Phone Line Enabled Enable phone line 1 and phone line 2 as needed. If you are using...

  • Page 117: Devices Screen

    Enter up to 8 digits for device serial number. (The serial number appears on a [blank] label on the device.) This is the number that the system uses to identify the device. It must be unique for all 4821/4820 devices, including Touchpads. (See Section for more information about adding Touchpads to the system.) [blank]...

  • Page 118: Partition List And Menus

    Model 4821/4820 Control/Communicator Installation Manual 6.3.2 Partition List and Menus When you select to Add or Edit a partition from the System SubMenu, a list of partitions dis- plays. Choose the partition you want to edit or select Add to create a new partition. Once you select Add or Edit, a screen displays the partition options menu system.
  • Page 119 Programming Table 6-5: Partition Options and Description Option Description Default Code Required for If this option is enabled, users must enter a code to bypass or reinstate Disabled Bypassing (unbypass) zones even if the system is disarmed. This option applies only to zones that can be bypassed manually.
  • Page 120 Model 4821/4820 Control/Communicator Installation Manual Table 6-5: Partition Options and Description Option Description Default Delay Reporting Bypass If this option is selected, all zone bypass events for this partition are Disabled Events until Armed not reported until areas are closed (armed). This is to minimize the amount of dialer activity to the central station.
  • Page 121 Programming Table 6-5: Partition Options and Description Option Description Default Alarm Reporting Delay This option programs the duration of the delay before alarms on zones Time programmed as Delayed Reporting are reported to the central station. If an alarm is reset before the alarm delay reporting occurs the central station will receive no indication of the alarm, but will receive an open-reset.

  • Page 122: Touchpads / Card Readers Screen

    (The serial number appears on a label on the touchpad.) This is the number that the system uses to identify the device. It must be unique for all 4821/4820 devices (including 4421, 4815 or 4825 zone expanders, and so on).
  • Page 123 Programming Table 6-6: Touchpads and Card Readers Options and Descriptions Option Description Default Door Monitor Select the system zone that will be temporarily bypassed when the Unused door relay is active. Typically, you enter the zone number used to monitor the door for security. This makes it possible to momentarily open the door for door access with the system armed and not cause an alarm.
  • Page 124 Model 4821/4820 Control/Communicator Installation Manual Table 6-6: Touchpads and Card Readers Options and Descriptions Option Description Default Mode Within / Mode These two options are for determining how the system will Code or Card Outside respond to door access requests that occur within the time schedule (mode within) and outside the time schedule (mode outside).

  • Page 125: Zones Screen

    *10 sec *Note:Do not select the 10 second response speed for zones that will be programmed as smoke verify. **Note: The Model 4421 cannot be used with the 4820 control Panel. Hardware A hardware point is a number that relates a system zone to its hardware location. Hardware...
  • Page 126 (see previous option). In a UL installation, the duration of the delay must not be longer than 45 seconds. Interior The 4821/4820 can have two groups of interior zones which can be controlled separately None through the key.
  • Page 127 Programming Table 6-7: Zones Screen Options and Descriptions Option Description Default Bell If Dialer If this option is enabled, there will be no bell or external speaker output unless the dialer Disabled Fails generates a fail event for this zone. The fail event will be generated when the dialer exhausts the programmed number of attempts.
  • Page 128 Model 4821/4820 Control/Communicator Installation Manual Table 6-8: Zone Types *Alarm Zone Type Description Type Fire Use with smoke detectors that will be connected to reset smoke power Fire to verify alarms. See Section 4.16.1 for information about smoke detector compatibility.

  • Page 129: Reporting Accounts Screen

    Programming 6.3.2.4 Reporting Accounts Screen A maximum of 32 accounts (4821) or 8 accounts (4820) can exist for the entire system. All 32/8 accounts can exist in one partition. Accounts are used to select the events that will be reported and the devices they will report to. Accounts can be set up to report events to central station receivers or to local printers.
  • Page 130 Model 4821/4820 Control/Communicator Installation Manual Table 6-9: Reporting Accounts Options and Description Option Description Default No (for all Events to Report For the list of events below, select Yes, No, or Must. events) Selecting Must forces the event to be reported to this account. The dialer will con- tinue attempting to report Must events until all attempts have been made for events selected as Yes or Must.
  • Page 131 Sends a maximum of 20 events in a single call. Sends only one account number per call. This format must be used with Silent Knight’s Model 9000 Receiver. SIA-500 Can send up to 500 bytes in a single call. Sends data from multiple accounts in a single call.

  • Page 132: Areas Screen

    Model 4821/4820 Control/Communicator Installation Manual 6.3.2.5 Areas Screen Table 6-10: Area Options and Description Option Description Default Area Number Select the area to change or add a new area to the partition. The following options will become available to select.

  • Page 133: Time Schedules Screen

    6.3.3 Time Schedules Screen Up to 50/25 time schedules can be defined within the 4821/4820 panel. Time schedules define one or more blocks of time which are used to determine when various system actions will occur and when users have access to the system (see below for list of system actions that fol- low time schedules).

  • Page 134: Universal Schedules

    Model 4821/4820 Control/Communicator Installation Manual Option Description Default Description Enter up to 16 characters to describe the time schedule. Time Schedule 1 Time Range Type Select the type of range that will be used. Options are: Normal Normal - The time range has specific begin and end times.

  • Page 135: User Profiles Screen

    Programming 6.3.5 User Profiles Screen Table 6-11: User Profiles Options and Descriptions Option Description Default Profile Number When you choose to add or edit a profile, the following options display. Profile Description Enter a text description of this profile. Up to 16 characters. Profile 1 Privilege Level Select the privilege level for all users who will be assigned to this...

  • Page 136: Users Screen

    Model 4821/4820 Control/Communicator Installation Manual Table 6-11: User Profiles Options and Descriptions Option Description Default Card can only arm If enabled, user cannot use their cards for door access. The card will Disabled and disarm arm or disarm the areas that the card reader is assigned.

  • Page 137: Reporting

    Section 7 Reporting The Model 4821/4820 reports to a central station in SIA, the Security Industry Association standard format, and in Ademco’s Contact ID. The choice for reporting format is a program- mable option; see Section 6.3.2.4 of this manual if you need more information. If you are reporting to the Silent Knight Model 9000 Receiver, you must select the SIA-20 format.

  • Page 138: Sia Event Codes

    Model 4821/4820 Control/Communicator Installation Manual SIA Event Codes Table 7-2 lists the SIA event codes that the 4821/4820 can send. When an “X” appears in the “Not supported by 9000” column, it means that the code cannot be received by the current version of the 9000.
  • Page 139 Reporting Table 7-2 SIA Event Codes 9000 SIA Upgrade Event Code Transmitted required Fire or Fire Contact Unbypass Gas Alarm Gas Bypass Gas Alarm Restore Gas Trouble Restore Gas Trouble Gas Unbypass Holdup Alarm or Duress Trigger Holdup Bypass Holdup Alarm Restore Holdup Trouble Restore Holdup Trouble Holdup Unbypass...
  • Page 140 Model 4821/4820 Control/Communicator Installation Manual Table 7-2 SIA Event Codes 9000 SIA Upgrade Event Code Transmitted required Opening Report Disarm From Alarm Late To Close Panic Alarm Panic Bypass Panic Alarm Restore Panic Trouble Restore Panic Trouble Panic Unbypass Emergency Alarm...
  • Page 141 Reporting Table 7-2 SIA Event Codes 9000 SIA Upgrade Event Code Transmitted required Tamper Alarm Restore Tamper Trouble Restore Test Start Tamper Trouble Tamper Unbypass Undefined Zone Alarm Undefined Zone Bypass Undefined Alarm Restore Undefined Trouble Restore Undefined Zone Trouble Egress Input Alarm Restored Undefined Zone Unbypass Printer Paper In...

  • Page 142: Ademco Contact Id Event Codes

    Model 4821/4820 Control/Communicator Installation Manual Ademco Contact ID Event Codes Table 7-3 lists the Ademco Contact ID event codes that the 4821/4820 can send. In the “Event Qualifier” column: 1 = New event 3 = Restore event Table 7-3: Contact ID Event Codes...
  • Page 143 Reporting Table 7-3: Contact ID Event Codes Event Group Event Qualifier Contact/User # SIA Event Description Code Number Zone # Sprinkler Supervisory Zone # Sprinkler Supervisory Restore Power Supervision Trouble Power Supervision Restore Service Required AC Power Restore AC Power Trouble Battery Restore Battery Trouble Flash Checksum Error...
  • Page 144 Model 4821/4820 Control/Communicator Installation Manual Table 7-3: Contact ID Event Codes Event Group Event Qualifier Contact/User # SIA Event Description Code Number Zone # Gas Trouble Restore Zone # Heat Trouble Zone # Heat Trouble Restore Zone # Holdup Trouble...
  • Page 145 Reporting Table 7-3: Contact ID Event Codes Event Group Event Qualifier Contact/User # SIA Event Description Code Number Door # Door Schedule Egress Granted Zone # Burglary Bypass Zone # Burglary Unbypass Zone # Cold Bypass Zone # Cold Unbypass Zone # Door Monitor Bypass Zone #...

  • Page 146: Ascii Event Descriptions

    Model 4821/4820 Control/Communicator Installation Manual Table 7-3: Contact ID Event Codes Event Group Event Qualifier Contact/User # SIA Event Description Code Number User Code Changed User Code Deleted User Code Tamper User # Test Start User # Test End User #...
  • Page 147 Reporting Table 7-4: ASCII Event Descriptions Event ASCII Description HOLDUP ALARM Holdup Alarm PANIC ALARM Panic Alarm SPRINKLER ALARM Sprinkler Alarm SPRINKLER SUPERVISORY Sprinkler Supervisory TAMPER ALARM Tamper Alarm UNDEFINED ALARM Undefined Alarm WATER ALARM Water Alarm Trouble BURGLARY TROUBLE Burglary Trouble COLD TROUBLE Cold Trouble...
  • Page 148 Model 4821/4820 Control/Communicator Installation Manual Table 7-4: ASCII Event Descriptions Event ASCII Description TAMPER TROUBLE RESTORE Tamper Trouble Restore UNDEFINED TROUBLE RESTORE Undefined Trouble Restore WATER TROUBLE RESTORE Water Trouble Restore Bypass BURGLARY BYPASSED Burglary Bypass COLD BYPASSED Cold Bypass DOOR MONITOR BYPASSED Door Mon.
  • Page 149 Reporting Table 7-4: ASCII Event Descriptions Event ASCII Description Alarm Restore BURGLARY ALARM RESTORED Burglary Alarm Restore COLD ALARM RESTORED Cold Alarm Restore DOOR MONITOR ALARM RESTORED Door Mon. Alarm Restore EGRESS INPUT ALARM RESTORED Egress Alarm Restore EMERGENCY ALARM RESTORED Emergency Alarm Restore FIRE CONTACT ALARM RESTORED Fire Alarm Restore...
  • Page 150 Model 4821/4820 Control/Communicator Installation Manual Table 7-4: ASCII Event Descriptions Event ASCII Description Exception OPCL AREA EXCEPTION ARMED Exception Arm AREA EXCEPTION DISARMED Exception Disarm AREA EXCEPTION FORCE ARMED Exception Force Arm Trouble OPCL LATE TO CLOSE Late to Close...
  • Page 151 Reporting Table 7-4: ASCII Event Descriptions Event ASCII Description SYSTEM BATTERY RESTORAL Battery Restore SYSTEM BATTERY TROUBLE Battery Trouble SYSTEM POWER UP System Power Up TIME CHANGED Time Changed USER CODE ADDED User Code Added USER CODE CHANGED User Code Changed USER CODE DELETED User Code Deleted USER CODE TAMPER...
  • Page 152 Model 4821/4820 Control/Communicator Installation Manual 7-16 150967...

  • Page 153: Troubleshooting

    Section 8 Troubleshooting The Model 4821/4820 has been designed to prevent many common installation errors. Error messages that display on the touchpad LCD or download software screens help identify the location of the problem. Error Messages Table 8-1 below describes system error messages that could display on the LCD and, when applicable, suggests solutions.

  • Page 154: Before You Call Technical Support

    Disable call waiting. Before You Call Technical Support Silent Knight Technical Support staff can help you with problems that come up when install- ing a system. However, before you call Technical Support, follow the guidelines listed below.

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