End Of Line Relay Wiring Diagram

EOLR

40 VDC. This relay can be used as an end of line device in fire alarm systems, e.g., to supervise power supplies. MOUNTING For ease of installation, the EOLR-1 relay may be mounted in a variety of ways. It can be attached to equipment or inside an enclosure using the mounting screw or double sided tape. WIRING

Can an End of Line Relay Cause Power Failure on a Zone ...

An End of Line Relay, or End of Line Power Supervision Relay, like the EOLR-1 is a simple device that closes when it receives 12 Volts DC power. If power is lost, the relay opens, causing a trouble on the fire zone the relay is wired in series with. Wire relay power from the last smoke in line on the 4-wire smoke loop.

Relay logic

The schematic diagrams for relay logic circuits are often called line diagrams, because the inputs and outputs are essentially drawn in a series of lines. A relay logic circuit is an electrical network consisting of lines, or rungs, in which each line or rung must have continuity to enable the output device. A typical circuit consists of a number of rungs, with each rung controlling an output.

A

A-2 HOW TO READ THE WIRING DIAGRAMS - Composition and Contents of Wiring Diagrams COMPOSITION AND CONTENTS OF WIRING DIAGRAMS (1) This manual consists of wiring harness diagrams, installation locations of individual parts, circuits diagrams and index. (2) In each section, all specifications are listed, including optional specifications ...

end of line switch wiring diagram | Wirings Diagram

Find your end of line switch wiring diagram here for end of line switch wiring diagram and you can print out. Search for end of line switch wiring diagram here and subscribe to this site end of line switch wiring diagram read more!

12 Volt Relay Wiring Diagram | Free Wiring Diagram

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EOLR

EOLR-12/24 VOLT END OF LINE RELAY SPECIFICATIONS Model HA-EOLR-12 (12V) HA-EOLR (24V) Coil Relay Rating 9-16 VDC 18-32 VDC Contact Relay Rating 1A@ 125 VAC 2A@ 125 VAC Dimensions 1 1/4” L x 1 1/4” W x /”D 1 1/4” L x 1 1/4” W x /”D Connections: 9 Inch Length 18 AWG Stranded Color Coded Wire WIRING DIAGRAM PRODUCT LISTINGS

INSTALLATION INSTRUCTIONS FOR

2. End of line device: 470 ohm, 1% 1/2W resistor, P/N A5Q00073045, and use Model TB-EOL with 470 ohm, 1% 1/2W resistor. 3. For polarity insensitive wiring, Line 1 and Line 2 can be either line of the device loop. 4. Supervised switch ratings: Voltage maximum: 27 VDC . Current maximum: 6mA during polling . Contact resistance maximum: 10 ohms

Why we use End of Line (EOL) Resistor in Fire and Gas System

The End-of-Line Resistor used in fire alarm systems and security systems may look the same as a Terminating Resistor, however the function of the End-of-Line Resistor is completely different. It’s important to understand that the “signals” used in fire alarm systems are DC, either on or off, not AC, which carries information like video or data.

Ademco Vista 20P Wiring Diagram

Note that the Ademco Vista 20P, like many other panels, can be programmed to not use end-of-line resistors on burglary zones. This option simplifies wiring, and cleans up the panel a bit. Telephone Wiring, Terminals 21-24. Connect the flying leads of an RJ-31X cord to the terminals as shown.

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