User Manual

A
Specifications
64
CrossCheck CDPD Mobile Unit Manual
Table A.2 Firmware Specifications
Item Specification
Event Handlers Geo-fence area for Job Sites
Geo-fence area for Home Sites
Entry Speed Limit for Site Dispatch purposes
Exit Speed Limit for Site Dispatch purposes
Site dispatch time-out
Minimum duration time to detect entry/exit regions
Support datalogging that allows the CrossCheck CDPD to
store messages and events for up to 1 week while out of the
network when outside CDPD coverage.
Automatic status reporting for ready mix applications.
Messaging Available through the Echo
LDX terminal
Ignition Sense Off: V < 0.8 VDC; On: V > 2.4 VDC
Table A.3 GPS Specifications
Item Specification
Receiver L1 frequency, C/A code (SPS), 8-channel continuous tracking
receiver using the Trimble FirstGPS™ and Colossus™
technology
Update Rate Once per second maximum
Accuracy Position: better than10 meters (50% CEP)
Velocity: < 0.5 meter/second
Time to First Fix Cold start: < 180 seconds 90% of cases
Warm start: < 45 seconds 90% of cases
Hot start: < 20 seconds 90% of cases
Reacquisition after 15-second blockage: < 2 seconds 90%
of cases
Datum WGS-84