USB Data Link Adapter
23
Appendix A
7.
Appendix A
7.1.
USB-DLA Electrical Specifications
The USB-DLA operates using power supplied by typical automotive
battery/charging system for both 12 and 24 volt systems. The following table lists the
electrical requirements.
Table 4: General ratings (@ 25 °C unless otherwise specified).
Parameter
Min Nom
Max Units
Remarks
Operating temperature
-40
+85 °C
Storage temperature
-55
+125 °C
Operating
voltage
4.4 4.75
5.0 V when
powered
by
USB from PC
Operating current draw
(USB power pin)
150 200 mA when
powered
by
USB from PC
Operating voltage
5
12-
24
32 V when
powered
by
vehicle battery
Operating current draw
100 300 mA when
powered
by
vehicle battery
7.2.
USB-DLA Environmental Specifications
The USB-DLA is made to operate in a typical automotive service environment. The
unit is protected to extremes of temperature and chemicals. As a handheld unit, the
unit can withstand being dropped but is not protected from vehicle stresses such as
steam cleaning or pressure washing.
The test descriptions below are based on the following Environmental
Specifications:
ANSI/ASAE EP455 JUL 91
ISO 7637 2nd edition
ISO 14982 1st edition
J1455 APR 03
