NorthStar Navigation 8000I - Manual (Page 43)

43 Northstar 8000i Black Box Processor
Noland NM42 Connections
A Noland NM42 NMEA 0183 Multiplexer
B DB9 Serial Connector DB9 Terminated to the 8000i Utility cable
C Power Power 8 V DC - 28 V DC
D Baud / Ground Connection Connect the Baud to ground. This enables
19200 high speed baud rate
E NMEA output Talker. Output to Auto pilot
F NMEA in NMEA for Instrument e.g. Heading
G NMEA in NMEA for Instrument e.g. Depth
H NMEA in NMEA for Instrument e.g. Wind
Connect the following;
1. Power (8 V DC to 28 V DC), check polarity.
2. Baud shorted to GND, as per Commissioning section.
3. Up to 4 NMEA talkers (input to 8000i) to IN1 through IN4.
4. Talkers must be 4800 baud
5. If talkers are single-ended, connect In1- to common ground.
6. 1 optional NMEA listener (output from 8000i) to TLK
7. Listener must be 4800 baud
8. If listener is single-ended, leave TLK- disconnected and connect listener GND to
common ground.
9. Connect 8000i Utility port to multiplexer DB9 port by constructing a cable with the
following pin-out
8000i Utility
Function 8000i Utility Wire Color DB9 Pin Number
TX+ White 3
GND Black 5
RX+ Yellow 2
RX- Black / White 5 (Common with ground)
N.B. OUT+/- port contains the combined talkers at 19200 baud (a duplicate of the DB9 port)
and is redundant in this system.
8000i Utility Port
Change the Baud rate of the 8000i processor to 19200 (see "Set NMEA Baud Rate" page 69)
If a listener device is connected to TLK, configure the required 8000i NMEA output sentences
(see "Set NMEA Output" page 68)
N.B. the output from the multiplexer is at 4800 baud.
8.3.4 External Alarm
Connect 8000i to external alarms. The external alarm output (dark green wire on the
NS004801 Utility Cable) switches to ground to sound the alarm. If the current drawn by the
external alarms is more than 250 mA, fit a relay.