Furuno FSV25 - Page 32

2. WIRING
2-6
How to connect external KP
To synchronize transmission with external sonar, make the connections shown below.
Make the connections shown below to output KP for external sonars and current
indicators.This sonar transmits a keying pulse (KP) to connected external sensors
when this sonar is connected and running.
IF UNIT
IF UNIT
Sonar
Sonar
KP signal (Current drive)
㪜㪯㪫㪄㪢㪧
㪜㪯㪫㪄㪢㪧㪄㪠㪥㪄㪚
㪎
㪏
㪜㪯㪫㪄㪢㪧㪄㪠㪥㪄㪟
KP input logic switching
DIP SW S3-2
ON: Rising edge
OFF: Falling edge
KP input logic switching
DIP SW S3-2
ON: Rising edge
OFF: Falling edge
Current drive KP output
Voltage drive KP output
㪜㪯㪫㪄㪢㪧
㪜㪯㪫㪈㪉㪭㪢㪧㪶㪠㪥
㪐
㪈㪇
㪞㪥㪛
KP signal (12 V)
IF UNIT
Sonar
Current
Indicator
KP signal (12 V)
㪜㪯㪫㪄㪢㪧
㪠㪥㪫㪢㪧㪈
㪞㪥㪛
㪠㪥㪫㪢㪧㪉
㪞㪥㪛
㪈
㪉
㪊
㪋
㪌
㪍
㪠㪥㪫㪢㪧㪊
㪞㪥㪛
KP input logic switching
DIP SW S3-3
ON: Positive logic
OFF: Negative logic