Rv-C Bus Communication (If Equipped); Nmea 2000 Network (If Equipped) - Garnet SeeLeveL II 709 Series Installation Manual & User Manual

RV-C Bus Communication (if equipped)

RV-C is a communications protocol based on CAN that is used for control,
coordination, and diagnostics. CAN bus interface allows continuous
communication with RV-C compatible systems.
W
NOTE: Anyone that intends on connecting to the RV-C bus should have a knowledge of
the RV-C specification. For more information on RV-C protocol go to:
The senders use a default source address of 72 and SPN-ISB instances are
0 for fresh, 1 for black, 2 for grey and 18 for galley (depending how the
display is equipped). The LPG sensor uses a default source address of 73
and a SPN-ISB instance of 3.
1. By disabling the LPG or changing the FRESH/GREY/BLACK to zero
senders, you are disabling that sender's updates over the RV-C bus as
well.
2. The RV-C has a 4-pin connector as shown in the yellow box in the
image below. The connector pins conform to the RV-C standard.
3. All RV-C displays will have a wired connection for the RV-C Bus in
addition to the 4-pin connector as shown in the green box in the image
below. Refer to the wiring diagrams for each specific model for pin out
details.
SeeLeveL II 709 Series Display Manual
www.rv-c.com
RV-C Connector
Pin Signal Description
1 Open
2 CAN-Hi
3 CAN-Lo
4 Ground

NMEA 2000 Network (if equipped)

NMEA 2000 is a marine communications protocol that is used for control,
coordination, and diagnostics. The 709-N2K is NMEA 2000 network
compatible, the tank levels and capacity are available on the NMEA bus for
the fresh, grey, and black tanks.
W NOTE: Anyone that intends to connect to the NMEA 2000 bus should have
a knowledge of the NMEA 2000 specification. For more information on NMEA
2000 protocol go to: www.nmea.org.
The 709-N2K reports as NMEA device class 75 (sensor communication
interface) with an NMEA function code of 150 (fluid level). Garnet
Instrument's manufacturer code is 873, and the 709-N2K product code
is 15197. The 709-N2K adheres to NMEA database version 2.200. By
changing the FRESH/GREY/BLACK to zero senders, you are disabling that
sender's updates over the NMEA bus as well.
The display has a 4-pin connector as shown in the yellow box in the image
below. Refer to the wiring diagram for pin out details.
The pin closest to the tab on the connector is pin 1.
You can purchase the connector required to connect to our display on the
Digi-Key website. Digikey part #3M155844-ND.
NMEA Connector Pinout
Pin Signal Description
1 +Voltage
2 CAN-Hi
3 CAN-Lo
4 -Voltage
Page 7