®
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