3.1.3 Environmental Specifications
The TTU-2830™is designed to operate in environments typically encountered by fleet
vehicles, including wide temperature extremes, voltage transients, and potential
interference from other vehicle equipment.
To ensure proper operation in such an environment, the TTU-2830™was subjected to
standard tests defined by the Society of Automotive Engineers (SAE). The specific tests
included temperature, shock, vibration, and EMI/EMC. These tests were performed by
independent labs and documented in a detailed test report. In accordance with Appendix
A of SAE J1113 Part 1, the Unit is considered a “Functional Status Class B, Performance
Region II” system that requires Threat Level 3 Testing.
The following shows the environmental conditions the LMU is designed to operate in and
the relevant SAE tests that were performed. No formal altitude tests were conducted.
Size
4.3" long x 3.2" wide x 1.6" high
110 mm long x 80m wide x 40mm high
Weight
9.6 oz (272 g)
Operating Temperature
-30° C to 70° C
Storage Temperature
-40° C to 85° C
20° C to 50° C (Internal Battery Power)
Humidity
0% to 95% relative humidity, non-condensing
Shock and Vibration
SAE Test: SAE J1455 Compliant
Mil Standard 202G and 810F Compliant
Ground vehicle environment with associated shock and vibration
Electromagnetic Compatibility (EMC/EMI)
SAE Test: SAE J1113 Parts 2, 12, 21 and 41 Compliant
FCC Part 15B Compliant
Industry Canada Compliant
EMC compliant for a ground vehicle environment
Operating Voltage Range
9 – 32VDC
Back-up Battery
5.2Ah mAh (up to 6 months at 1 message per day w/ deep sleep enabled)
4 Hour Charge Time
Power Consumption
Active Standby < 70mA at 12VDC
Radio Active Sleep <<TBD> at 12VDC
Deep Sleep < 2mA at 12VDC
GPS
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