Simrad Maris ECDIS900 Technical Manual page 42

MOXA Serial Interface
C
ONNECTION AND CABLING
The connector provided on the delivered data cable is a standard 9-pin 'D' connector as used
on computers. If there is an unused 9-pin serial port on the computer, then simply plug in the
cable. If the computer's serial port is the 25-pin type, an inexpensive adapter is available at
any store that sells computers and accessories.
It may be necessary to turn on NMEA data output. Refer to the GPSs instruction manual.
Set the datum to WGS84. Refer to the GPS instruction manual.
•
Connect a GPS directly as follows:
•
Computer cable
RX(red)
TX (White)
GROUND (green)
If a standard 9-pin 'D' connector is used, connect the device as follows:
Computer cable
RX +
GROUND
RS422
CABLING
If the electronic equipment is compliant to RS422 type electrical characteristics, use a
standard 9-pin 'D' connector as used on computers and connect the device as follows:
Computer cable
RX +
RX -
GROUND
If the computer's serial port is the 25-pin type contact the dealer.
S NMEA R
ERIAL ADAR CONNECTION
To display ARPA targets, the radar must output either the NMEA TLL or TTM strings. To use
this feature, ensure the radar is correctly tracking ARPA targets before attempting to connect
it to the ECDIS.
Connections to the radar system are as follows:
Computer
NMEA Radar
cable
Data to Computer (RX). Connect to the NMEA+ output which may be
RX
labelled TX, TX+, Data Out+ or NMEA OUT+depending on the radar
42
TX Not Used
GPS
Data to Computer (RX). Connect to the NMEA+ output which may be
labelled TX, TX+, Data Out+ or NMEA OUT+ depending on the GPS
model
Data from Computer (TX). Not Connected
Signal Ground. Connect to the NMEA- output, or if there is no NMEA-
output, connect to the ground on the GPS instead. It may be labelled
TX-, Data Out-, NMEA OUT- or Ground, depending on the GPS model
Connector
Pin 2
Pin 5
Connector
Pin 1
Pin 2
Pin 5