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ADEMCO 4281 Series - User Manual

ADEMCO 4281 Series
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Dear Tech-Man Subscriber:
ADEMCO apologizes for any misunderstanding that has arisen due to our recent
decision to have our technical information removed from the Tech-Man web site. You
may appreciate that one of our key concerns is to provide installing security dealers with
timely and accurate information on our products, and we were concerned about the data
posted to the Tech-Man web site. For obvious reasons, we also do not wish unauthorized
individuals to have access to information on installing and configuring ADEMCO
systems. These concerns were what prompted us to ask Tech-Man to stop posting
ADEMCO installation instructions and user manuals.
Several of you have written us to ask that we reconsider this decision. We have.
We will not require Tech-Man to remove the ADEMCO data. ADEMCO, however, is
not responsible for the operation and maintenance of this site - thus we cannot guarantee
the timeliness or accuracy of the information posted on the Tech-Man web site.
The ADEMCO web site is located at www.ademco.com and contains accurate
timely data about our products. You may request a PIN number for access to the
ADEMCO Technical Support web site and FAXBACK system.
If you need assistance on troubleshooting, or if you have other technical questions
about our products not addressed in the information posted at our web site, please contact
ADEMCO Technical Support at 800-645-7492.
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Summary

ADEMCO Installation Instructions

Introduction to RF Receivers

Overview of ADEMCO RF receivers and their compatibility with control panels.

General Installation Guidelines

Instructions and considerations for installing ADEMCO RF receivers, including spatial diversity.

5881 EH Commercial Fire Applications

Specific mounting and usage instructions for the 5881EH in commercial fire systems.

Setting DIP Switches

Configuration of receiver addresses and special functions using DIP switches.

Technical Specifications

Details on dimensions, input voltage, current, and range for RF receivers.

Installer Responsibilities and Recommendations

Guidance for installers on maintenance, testing, and user training.

FCC Statement and Diagrams

FCC Compliance and Interference

Information regarding FCC regulations, potential interference, and user guidance.

Receiver Board Cabinet Mounting Diagram

Visual guide for mounting the receiver circuit board within a control cabinet.

Connection Diagrams and System Details

Receiver Connection Summary and Model Identification

Diagrams and tables for wiring, model identification, and key features.

DIP Switch Settings and Receiver Addressing

Detailed explanation of DIP switch functions and receiver address settings.

Wireless Alarm System Limitations and Warranty

Limitations of Wireless Alarm Systems

Discussion of factors affecting system performance, potential failures, and sensor limitations.

ADEMCO Limited Product Warranty

Details the terms, duration, exclusions, and seller's liability for ADEMCO products.

Summary

ADEMCO Installation Instructions

Introduction to RF Receivers

Overview of ADEMCO RF receivers and their compatibility with control panels.

General Installation Guidelines

Instructions and considerations for installing ADEMCO RF receivers, including spatial diversity.

5881 EH Commercial Fire Applications

Specific mounting and usage instructions for the 5881EH in commercial fire systems.

Setting DIP Switches

Configuration of receiver addresses and special functions using DIP switches.

Technical Specifications

Details on dimensions, input voltage, current, and range for RF receivers.

Installer Responsibilities and Recommendations

Guidance for installers on maintenance, testing, and user training.

FCC Statement and Diagrams

FCC Compliance and Interference

Information regarding FCC regulations, potential interference, and user guidance.

Receiver Board Cabinet Mounting Diagram

Visual guide for mounting the receiver circuit board within a control cabinet.

Connection Diagrams and System Details

Receiver Connection Summary and Model Identification

Diagrams and tables for wiring, model identification, and key features.

DIP Switch Settings and Receiver Addressing

Detailed explanation of DIP switch functions and receiver address settings.

Wireless Alarm System Limitations and Warranty

Limitations of Wireless Alarm Systems

Discussion of factors affecting system performance, potential failures, and sensor limitations.

ADEMCO Limited Product Warranty

Details the terms, duration, exclusions, and seller's liability for ADEMCO products.

Overview

The ADEMCO 4281/5881/5882 Series RF Receivers are designed for use with control panels that support an RF receiver connection via remote keypad connection points. These receivers recognize alarm, status, and keypad control messages from wireless transmitters. The 4281/4281CN series operates at 345MHz (in Canada, 315MHz), while the 5881/5882 series operates at 345MHz. The various versions of these receivers are generally referred to as "receiver" unless otherwise specified.

Function Description:

The primary function of these RF receivers is to receive signals from wireless transmitters and relay them to a control panel. This allows for the integration of wireless security devices, such as intrusion detectors, into a larger alarm system. The receivers feature a Spatial Diversity System, which is designed to virtually eliminate "Nulls" and "Dead Spots" within the coverage area, ensuring more reliable signal reception.

The 4281/4281CN family of receivers is used with 5700 series transmitters, while the 5881/5882 family is used with 5800 series transmitters. The 5881EH is an enhanced version of the 5881H, incorporating Ademco's SignalSentry™ technology for high-security wireless transmissions, specifically intended for commercial fire installations. For commercial fire applications, the 5881EH must be used with control panels approved for such use.

Important Technical Specifications:

  • Dimensions: 7-3/8" W x 4-3/8" (10-7/8" w/antennas) H x 1-7/16" D (188mm W x 112mm H (277mm w/antennas) x 37mm D).
  • Input Voltage: 12VDC (from control's remote keypad terminals).
  • Current:
    • 4281/4281CN: 35mA.
    • 5881/5882: 60mA.
  • Interface Wiring:
    • RED: 12VDC input (+) Aux Power
    • GREEN: Data Out to Control
    • YELLOW: Data In from Control
    • BLACK: Ground (-)
  • Range: 200ft (60m) nominal indoors from wireless transmitters (actual range determined in TEST mode).
  • FCC IDs:
    • 4281 Series: FCC ID CFS4281 (345MHz), CANADA: DOC/MDC 1748 K927 (315MHz)
    • 5881 Series: FCC ID CFS8DL5881 (345MHz)
    • 5881EH and 5882 Series: FCC ID CFS8DL5882 (345MHz), CANADA: DOC/MDC1748 K1398 (345MHz)
  • Zone Support:
    • 4281L/4281CN-L: Up to 4 zones
    • 4281M/4281CN-M: Up to 8 zones
    • 4281H/4281CN-H: See control panel instructions
    • 5881L/5882L: Up to 8 zones
    • 5881M/5882M: Up to 16 zones
    • 5881H/5881EH/5882H: See control panel instructions

Usage Features:

  • Multiple Receiver Support: One or two individually identified receivers can be used, depending on the control panel. Multiple receivers can provide redundant coverage or extend coverage in large areas, though they do not increase the number of transmitters the system can support.
  • Installation Flexibility: Receivers can be mounted directly inside the control's cabinet (circuit board only, without its plastic housing) or remotely in their own housing. It is important to avoid mounting receiver antennas against a metal surface.
  • DIP Switch Configuration: A DIP switch on the receiver's circuit board is used to set the receiver's address, which is necessary for the control panel to identify it.
  • 5881EH Commercial Fire Applications: For commercial fire installations, the 5881EH must be mounted in a separate cabinet (part # N4868V4-BE) using specific Ademco components (Cam Lock Part #N6277, and Retainer Clip Part # N6277-1). DIP switch #5 on the 5881EH must be in the ON position for commercial fire applications.
  • Interference Indicator: An LED on the receiver's circuit board indicates strong local radio frequency interference. If this LED is continuously illuminated, the receiver should be relocated.
  • Environmental Considerations: Receivers should not be installed in areas subject to environmental extremes, such as below freezing (unheated warehouses) or extremely high temperatures (attics).

Maintenance Features:

  • Regular Testing: The manual emphasizes the importance of regular maintenance and inspection (at least annually) by the installer and frequent testing (at least weekly) by the user to ensure continuous satisfactory operation. This includes testing all sensors, transmitters, the security console, and remote keypad.
  • Battery Life Monitoring: The system can identify a true low battery situation in wireless transmitters, allowing time to arrange a battery change to maintain protection.
  • Troubleshooting Assistance: For troubleshooting or technical questions not covered in the web site information, users can contact ADEMCO Technical Support.
  • Information Access: The ADEMCO web site (www.ademco.com) provides accurate and timely data about products. A PIN number can be requested for access to the ADEMCO Technical Support web site and FAXBACK system.

Limitations (Wireless Alarm System):

The document includes a comprehensive "WARNING: THE LIMITATIONS OF THIS WIRELESS ALARM SYSTEM" section, highlighting that while the system is advanced, it does not offer guaranteed protection. Key limitations include:

  • Bypass Vulnerability: Intruders may bypass sensors or disconnect warning devices.
  • Power Dependency: Detectors require power (batteries or AC) to function.
  • Signal Blockage: Wireless signals can be blocked or reflected by metal objects.
  • User Response Time: Users may not reach panic buttons quickly enough.
  • Smoke Detector Limitations: Smoke detectors may not activate in all fire scenarios due to improper installation, placement, or sensing limitations (e.g., fires in walls, different levels, specific types of fires).
  • Passive Infrared Motion Detector Limitations: PIR detectors have designed ranges and do not provide volumetric protection. They can be obstructed by walls, doors, or windows, and their detection ability can be reduced by tampering, masking, or extreme temperatures.
  • Warning Device Limitations: Sirens, bells, or horns may not alert people if muffled by noise, distance, or hearing impairment.
  • Telephone Line Vulnerability: Telephone lines for central monitoring can be out of service or compromised.
  • Response Time: Occupants may have insufficient time to react, and authorities may not respond appropriately.
  • Component Failure: Like all electrical devices, components can fail over time, despite a design life of up to 20 years.
  • Inadequate Maintenance: The most common cause of system failure is inadequate maintenance.

ADEMCO 4281 Series Specifications

General IconGeneral
BrandADEMCO
Model4281 Series
CategoryReceiver
LanguageEnglish

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