Optional Connections; Nmea Output; Alarm Buzzer; Temperature Sensor - Standard Horizon FF525 Installation Manual

2.4

OPTIONAL CONNECTIONS

The FF525 is supplied with connections that allow the FF525 to be connected to the
following external devices:
a. NMEA device capable of listening to DBT, DPT, VHW, VLW, MTW
b. Temperature sensor (10K ohms at 77°F)
c. 12VDC Alarm Buzzer (400mA max current draw)
2.4.0

NMEA Output

The following sentences are output: DPT and DBT (Depth), VHW (Speed), VLW (Trip Log),
MTW (Water Temperature), XDR (External Temperature Sensor).
2.4.1

Alarm Buzzer

This connection has the capability to drive a buzzer that draws 400mA. Any 12VDC buzzer
within the current draw requirements can be connected.
2.4.2

Temperature Sensor

Any thermistor type temp sensor that produces 10K ohms at 77°F can be connected.
FF525 Installation Manual
Figure 2.4 - The FF525 Optional Connections
Figure 2.4.2 - Optional Connections
WIRE COLOR
BLACK
RED
WHITE
GREEN
GRAY
YELLOW
BROWN
BLUE
ORANGE
PINK
White, NMEA output
Green, common
Black, ground
Yellow, Ext. Temp sensor
Blue, Alarm output
FUNCTION
GND
Not connected
NMEA Output(+)
NMEA GROUND
Not connected
Temp 2 INPUT(+)
Not connected
Alarm OUTPUT(+)
Not connected
Not connected
NMEA
Device
External
Temp Sensor
+
12VDC
Buzzer
12V Battery
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