Table of Contents
Advertisement
Installation Notes
Other features available from the MX500 are:
•
External Man-Over-Board (MOB) switch input (also used
for external Event input)
•
Pulse Counter inputs for the speed log,
•
Pulsed Log output.
•
External alarm
•
Compass row displays (when connected to an MX575
GPS Compass)
Refer to Appendix F - Section 4 of this manual for wiring
information.
External Man Over Board & Event
An external push button switch can be connected between the pin 1
(MOB/Event) input and REF GND of the AUX cable . Connect the appro-
priate MOB/Event pins to a normally open push-button switch.
The Man-Over-Board (MOB) function is activated when the external switch
is pressed for 3 seconds. Once activated, the MOB condition can only
be canceled from the MX 500 front panel display. Refer to the Operation
section of the manual for this operation and more details on the Man
Over Board function. When this switch is pressed for 1 second, this
causes your present position and time to be stored as a waypoint in the
waypoint bank. A message indicating which waypoint number is used
will be displayed on the MX 500 screen for up to 5 seconds.
Speed Over Ground Pulse Output
The MX 500 can output the GPS calculated speed over ground in a
pulse format. Refer to the Specifications section of this manual for sig-
nal characteristics.
The pulse output is derived from pins 7 (orange) & 8 (brown) of the AUX
cable. The speed log out (+) is the orange wire, while the speed log (-)
is on the brown wire. It is an RS-422 level signal, and may not be
compatible with every installation.
To setup the MX 500 software, select the CFG1/Log Pulses screen.
This screen controls the output port (Pulse) of the speed over ground log
output from the MX500 at a user determined pulse rate of 100 to 500
pulses per nautical mile (200 is the pre-selected value). The default con-
dition of the Speed-Over-Ground output is "No" or not active.
Version 3.0
Installation Manual
213
Advertisement
Table of Contents
Troubleshooting
