User's Manual

Houston Radar DC310 User Manual
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Internal Clock:
The radar has a built in clock/calendar function. This allows the radar to date/time
stamp the historical archive records saved by the Advanced In-Radar traffic statistics
collection feature.
The radar does not feature a clock backup battery. Power must remain
connected to the radar for the clock to keep time. An external clock battery
may be connected to keep time while radar goes into low power sleep
mode. See Appendix C for more details.
Configuring the Unit:
The radar’s internal parameters may be configured via the radar’s RS232 port after
connecting to a PC’s RS232 serial COM port and using the Houston Radar configuration
program’s Graphical User Interface (GUI). While this is the most convenient way to
configure the radar, customers may also wish to set the configuration variables directly,
for example when the radar is part of a system and connected to another microcontroller.
The radar configuration variables and their functionality are described below.
Configuration
Variable Name
Description
RS
Sets the RS232 serial port’s baud rate and output format. Do not change
this value unless you understand the implications.
UN
Lower Byte
: Sets the internal speed units of the radar. All LO, SP, and
HI speeds are interpreted to be in these units.
0 = MPH 2=FPS (Feet per second)
1 = KPH 3=MPS (Meters per second)
Upper Byte: Sets number of digits after decimal point.
LO
Low speed cutoff. Vehicles are not detected below this speed.
Minimum value is 2. Should be set to be less than HI. Speeds above
this limit can trigger the O/P1 and O/P2 outputs.
HI
High speed cutoff. Vehicles are not detected above this speed.
Maximum value is 159. Should be set higher than LO speed.
SF
Select tracking filter. This should be pre-configured to monitor bi-
directional traffic. Please contact us if you wish to modify this.