Section 8 - Input/output configurations
05/01/97 REV H
PAGE 29
Section 8 - Input/output configurations
The Northstar 8700, 8800 series, and 8900 series sensors contain either a
GPS sensor, a BDM receiver, or both. Each sensor has two full-duplex
serial ports that you can interconnect with each other and/or external
devices in various ways as required for your applications. Both RS-422
and RS-232 inputs and outputs are provided, and have separate pins on
the I/O connector. RS-422 and RS-232 outputs may be used simulta-
neously; however,
only one receiver input for a particular port should
be connected.
To allow for various installation requirements, the sensor contains a pro-
grammable matrix switch that can connect any GPS or BDM receiver sig-
nal to any sensor’s I/O port. Five program configurations are available
with the standard product; one of these is selected by grounding appro-
priate pins on the sensor’s 25-pin data/power connector. The wiring dia-
gram for each sensor model shows the required configuration of these
pins. For other specialized applications requiring different configurations,
contact Northstar to determine the cost and feasibility of customized pro-
gramming.
8.1 I/O ports
The signal levels of the available I/O ports are shown below.
Table 6: I/O ports
8.2 Sensor signals
The available sensor signals are listed below.
•
GPS primary output
•
GPS auxiliary output
•
BDM SC-104 output
Pin #
I/O port
7
RS-232 receiver 1 input
21
RS-232 receiver 2 input
10
RS-232 receiver 3 input
15, 3
RS-422 receiver 1 input (A/B)
1, 14
RS-422 receiver 2 input (A/B)
6
RS-232 transmitter 1 output
20
RS-232 transmitter 2 output
9
RS-232 transmitter 3 output
5, 18
RS-422 transmitter 1 output (A/B)
16, 4
RS-422 transmitter 2 output (A/B)
Summary of Contents for 8700
Page 2: ......
Page 10: ......
Page 16: ...Section 2 Introduction PAGE 6 05 01 97 REV H ...
Page 20: ...Section 3 Packaging PAGE 10 05 01 97 REV H ...
Page 32: ...Section 6 GPS beacon combination receivers PAGE 22 05 01 97 REV H ...
Page 46: ...Section 8 Input output configurations PAGE 36 05 01 97 REV H ...
Page 52: ...Section 9 Connector pinouts PAGE 42 05 01 97 REV H ...
Page 76: ...Section 12 8X00 engine monitor program PAGE 66 05 01 97 REV H ...
Page 78: ...Section 13 Glossary PAGE 68 05 01 97 REV H ...
Page 80: ...Section 14 Abbreviations and initialisms PAGE 70 05 01 97 REV H ...
Page 85: ...Index 05 01 97 REV H PAGE 75 ...