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One Gateway is enough for a twin-engine installation.
Note: you can use the supplied 6-pin plug as a dust cap for the unused Device connector.
IV.1.6 Connection to Other EVC Versions and MDI (Engines from
After 2005, EVC-B and Later)
This connection can be made at the following points (please, read also the details below):
• If the system has an EVC tachometer (with a needle gauge and a small LCD display) connected
by a 6-pin Deutsch connector (see Fig. 2 on the next page), the best option is to connect the Gateway
in-line with a tachometer (no extra cables are required, the Gateway is equipped with a 6-pin
Y-connector);
• If the system has an HCU (Helm Control Unit) with a 6-pin «Multilink» connector (usually
the connector and/or the cable label are yellow), the Gateway can be connected to this port (in line
with the existing cable);
• If the system has a Multilink Hub (casing usually made completely of yellow plastic,
6-pin connectors), the Gateway can be connected to any port of the hub.
If the engines are connected to a single network (joined with a sync cable), one Device is adequate
for transferring data from all engines to the NMEA 2000 network. The Device supports up to 8 engines
on a network. If the engines are not united on a single network, a separate Device will be needed
for each one.
The basic test is to switch the cables of the EVC tachometers. If the port tachometer shows data of
the starboard engine, it means that you need a dedicated Gateway for each engine (it is less expensive than
installing a sync cable). If the port tachometer still shows port engine data, then one Gateway is enough.
The Device has a built-in Y-connector, and to connect the Device before the EVC tachometer, you only
need to disconnect the tachometer cable, connect it to the Device, and connect the cable from the Device
to the tachometer. If the engines are united on a network and there are multiple tachometers,
you can choose any of them, whichever is most convenient.
Note that if you are installing the Gateway in the place of a broken EVC tachometer, the plug supplied with