® ENGINEERING COMPANY INC. Route 145, Winthrop Road, Chester, Connecticut 06412 Phone: (800) 63SIREN Phone: (860) 526-9504 Fax: (860) 526-4078 Internet: www.whelen.com Sales e-mail: iowsales@whelen.com Customer Service e-mail: iowserv@whelen.com Replacement Advisory 2020 Logic Control Board This logic control board has been redesigned. The new board design can be easily distinguished from the early board design by comparing the type of connectors used for J1 (Battery) and J5 (Charger). The new boards use different hardware at these points (see illustration on the reverse of this page). When replacing the logic control board in an existing system, the installer must make sure that all wires connecting to the new board maintain the same orientation as shown on the back of this sheet. Outdoor Warning If the orientation of any connectors do not match the orientation shown, do not plug these connectors into the replacement board! Contact Whelen Customer Service immediately. ©2005 Whelen Engineering Company Inc. Form No.13977 (030705) Page 1 1 1 1 BLK/WHT J1 BATTERIES 3 RED/WHT 1 J2 1 ORG 2 YEL 3 GRN 4 BLU 5 VIO 6 WHT/BRN 7 WHT/ORG 8 WHT/BLK 9 WHT/YEL 10 WHT/GRN 11 WHT/BLU J3 1 ORG 2 YEL 3 GRN 4 BLU 5 VIO 6 WHT/BRN 7 WHT/ORG 8 WHT/BLK 9 WHT/YEL 10 WHT/GRN 11 WHT/BLU J4 1 RED 2 BRN 3 ORG 4 YEL 5 GRN 6 BLU 7 GRY 8 WHT 9 WHT/BLK 10 WHT/RED 11 WHT/ORG 12 BLK PAGING INTERFACE CHARGER J3 1 ORG 2 YEL 3 GRN 4 BLU 5 VIO 6 WHT/BRN 7 WHT/ORG 8 WHT/BLK 9 WHT/YEL 10 WHT/GRN 11 WHT/BLU J4 1 RED 2 BRN 3 ORG 4 YEL 5 GRN 6 BLU 7 GRY 8 WHT 9 WHT/BLK 10 WHT/RED 11 WHT/ORG 12 BLK 1 ROTOR 1 ROTOR J2 1 ORG 2 YEL 3 GRN 4 BLU 5 VIO 6 WHT/BRN 7 WHT/ORG 8 WHT/BLK 9 WHT/YEL 10 WHT/GRN 11 WHT/BLU 1 PWR AMPS 6-10 1 PWR AMPS 6-10 J20 1 WHT/GRN 2 WHT/GRN 3 WHT/GRN 4 WHT/GRN 5 WHT/GRN 6 WHT/GRN 7 WHT/GRN 1 PWR AMPS 1-5 1 PWR AMPS 1-5 3 RED/WHT 1 J20 1 WHT/GRN 2 WHT/GRN 3 WHT/GRN 4 WHT/GRN 5 WHT/GRN 6 WHT/GRN 7 WHT/GRN 1 PAGING INTERFACE 1 BLK/WHT 1 J1 BATTERIES J5 1 ORG 2 RED 3 BLK 4 GRY CHARGER Early Board Design J5 New Board Design STROBE STROBE 1 1 J6 J6 1 RED 2 BLK 3 ORG 4 GRN 1 RED 2 BLK 3 ORG 4 GRN Page 2 1 ORG 2 RED 3 BLK 4 GRY