Installation Notes
Version 3.0
227
Installation Manual
Memory Backup Battery
The internal real time clock and memory which stores the waypoints,
alarm limits, etc., is backed up by a lithium battery. The expected life
time is 2 years at 21° C, but this is based on the temperature the navi-
gator is stored at when not in use. The higher the temperature, the
shorter the life and vice versa.
Backup Battery Replacement
Marine electronics dealers or radio supply stores will typically stock the
replacement battery, Type TL-5902, 3.6 V (1/2 AA) Lithium battery.
The battery is mounted in a socket located on the MX 500 processor
board. BNT-ME recommends this service to be done by a qualified
service technician.
MX 500 PC Interface
The MX 500 data ports 1 & 2 are both RS-422 type data interface. If
you need to connect the MX 500 to a PC we recommend using an RS-
422 to RS-232 converter as shown below.
MX 500
Negative GND (Black)
10.5 to 32 VDC (Red)
NMEA TX1 - (Blue)
NMEA TX1 + (Brown)
NMEA RX1 - (Orange)
NMEA RX1 + (Green)
NMEA TX2 - (Yellow)
NMEA TX2 + (White)
NMEA RX2 - (Purple)
NMEA RX2 + (Grey)
GND Fast Channel IN (lite Green)
Shield
PWR/Data Cable
(12-Pin Connector)
+
12
V
GN
D
RD
(B)
RD
(A
)
T
D
(A
)
T
D
(B
)
12 VDC
+
-
RS-
2
32
RS
-4
2
2
B&B Electronics
RS-422 to RS-232
Converter
Model 422LP9TB
To PC
Serial Port
PC Interface Cable Diagram
Summary of Contents for MX500
Page 1: ...oOperator s Installation Manual MX500 Navigation System ...
Page 14: ...Version 3 0 ix Table of Contents Operator s Manual ...
Page 165: ...Version 3 0 151 Configuration Operator s Manual ...
Page 167: ...Version 3 0 153 Datum List Operator s Manual ...
Page 195: ...List of Components Installation Manual Version 3 0 181 APPENDIX F INSTALLATION SECTION ...
Page 196: ...Installation Manual List of Components 182 Version 3 0 SECTION 1 LIST OF COMPONENTS ...
Page 219: ...Installation Notes Version 3 0 205 Installation Manual SECTION 5 INSTALLATION NOTES ...
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