New Transducers 250C ユーザーズマニュアル

(Red) + 10-35 VDC

(Black) - Ground (Power/Data)

(Blue) Port 1 Data OUT

(Brown) Port 1 Data IN

(White) Port 2 Data IN (N/C)

(Green) Port 2 Data OUT 

(Yellow) Alarm Low

GPS/NMEA 

Device

RXD +

NMEA Device

10-35 Volts DC

Power

and RXD -

RXD +

TXD +

Alarm Relay

100ma max

coil current

DC Positive

(RX COM 1)

(TX COM 1)

(RX COM 2)

(TX COM 2)

During a typical installation, only the Red and Black 

wires are used. The other wires do not have to be 

connected for normal operation of the unit.

You can download a copy of Garmin's proprietary 

communication protocol document from the Support 

section of our Web site at www.garmin.com.

Complete information concerning National Marine 

Electronics Association (NMEA) format and 

sentences is available for purchase from NMEA at:

NMEA

Seven Riggs Avenue

Severna Park, MD 21146 U.S.A.

www.nmea.org

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NSTALLATION