20 |
Installation | HS80/HS80A/MX575C/MX575D UserManual
Connecting the Smart GPS compass to external devices
¼ Note: This section refers to a serial connection. For connecting external NMEA 2000 devices,
plug the serial-to-NMEA 2000 adapter into the HS80/HS80A and then attach a standard
NMEA 2000 drop line cable to the adapter.
¼ Note: The NMEA (N2K) adapter is not included as standard accessory of the MX575C/MX575D
model.
Power/Data cable considerations
The MX575C/MX575D uses a single 15 m (49 ft) or optional 30 m (98 ft) cable for power and
data input/output. This cable is optional for HS80/HS80A
J1
50 mm
P1
Cover drain wire
with black shrink
tube
Shrink tubes
15 m / 30 m
100 mm
Figure 2-9: Power/Data cable, 15m or 30m
The receiver end of the cable is terminated with an environmentally sealed 18-pin connector
while the opposite end is not terminated and requires field stripping and tinning.
Depending on the application and installation needs, you may need to shorten this cable.
However, if you require a longer cable run than 30 m, you can bring the cable into a break-out
box that incorporates terminal strips.
When lengthening the cable keep the following in mind:
• To lengthen the serial lines inside the vessel, use 20-gauge twisted pairs and minimize the
additional wire length.
• When lengthening the power input leads to the Smart GPS compass, ensure the additional
voltage drop is small enough that your power system can continue to power the system
above the minimum voltage of the system. Wire of 18-gauge or larger should also be used.
• Minimize RS-232 cable length to ensure reliable communication.
• Use similar color-coded wires whenever possible.
Power/Data cable pin out specications
Figure 2-10 shows the power/data cable pin out, and the table shows the cable’s pin out
specifications.
Figure 2-10: Power/data cable pin assignment
To Next Page
Loading...
Need help?
General
