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© 2013 Active Research Limited
NMEA 2000 connections
The
Actisense
NGT-1-ISO is designed to be connected
to the vessel’s NMEA 2000 network using the supplied,
pre-fitted Actisense cable.
If a different length cable is required, an NMEA 2000
certified cable of the required length (maximum 6 metres)
should be connected to the vessel’s NMEA 2000 network
using a standard NMEA 2000 connector.
The standard wiring connection can be seen in Figure 2.
Note:
1. Wire colours are for guidance only. The colours given
relate to the supplied Actisense cable and the NMEA
2000 standard cable definition.
Connecting to the NMEA 2000 network
Figure 2 – NMEA 2000 connections
C
A
N
N
e
tw
o
rk
NET COM
Shield
CAN Hi
CAN Lo
NET SUP
Connecting to an RS232 (PC) port
Figure 3 – RS232 port connections
RS232 Connections
The NGT-1-ISO can be connected to a PC communications
(RS232) port using the supplied Actisense cable and a
connector with the following specification:
1. A minimum of 3-cores are required in a shielded
cable. Higher quality cable will naturally yield higher
performance / higher Signal-to-Noise Ratio (SNR).
Most typical cables have two twisted pairs inside. In
this case, use one pair for the
TX
line and one for the
RX
line. Use the spare wire in each pair as ground,
and connect the cable shield to ground only at the
computer end.
2. A D-type female (socket) connector for the PC end of
the cable.
3. The
OUT +/A
of the NGT-1-ISO should be connected
to the
RX
of the computer (standard D-type, pin 2)
and the NGT-1-ISO
IN +/A
should be connected to
the
TX
of the computer (pin 3).
4.
Connect the IN -/B and OUT -/B together
and
connect to the PC’s serial port ground (pin 5).
Personal
Computer
( 9 PIN 'D'
RS232
Port)
Do not
connect
RX
Pin 2
GND
Pin 5
TX
Pin 3
