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Document No.
9100-127-2044-99 Rev C
Release Date: August 2020
System Installation Requirements for EMC and Lightning Immunity:
1: Ensure the shield of the cable that connects the Flash head to the power supply is
grounded at both ends. Make 360-degree ground connections around the braid or foil
(avoid pigtails).
2: For increased lightning protection adding a lightning rod that extends up 3 feet above
the fixture and 18 inches away from the light is recommended.
3: The drain-wire in the Flash Head cable must be connected to ground at both ends.
Ensure that the wire is short as possible and avoid loops.
4: Ensure the Flash Head is electrically bonded to the tower. Scrape away access paint/
powder coating as necessary.
5: Minimize loop areas by tying all cables against the tower or passing through conduit.
6: Ensure the Power Supply enclosure is electrically bonded to the tower. Scrape away
access paint/ powder coating as necessary.
7: Ground any spare/unused conductors in the Flash Head connection cable at both
ends.
8: It is recommended that a minimum of ¾" conduit is used for all wiring ways.
9: RS485 connections must be secure and shield or braiding must be grounded
securely.
Power Supply Specifications & Electrical Parameters:
Flash Rate for L864/L865
The Red Beacon factory setting is 30FPM (Flash per minute).
The White Strobe factory setting is 40 FPM (Flash per minute).
Fault / Alarm Connections
There are NO additional fault connections required in the Power Supply enclosure. All
faults are sent to the Base controller via the RS485 communications.
NOTE: It is vitally important that the RS485 connections are checked and secured.
Dialight Corporation 1501 Route 34 South
Farmingdale NJ 07727
Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com
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