User Manual

Asset-Link 250 User Manual July 19, 2004
970-00047 Rev. 1.2
CSI Wireless©2004 Specifications subject to change without notice Page 3-4
The Asset-Link will function after the subsequent rise of Power Supply voltage back
to over 7.2 volts.
3.2.9 Power Supply Engine Start Disturbances
Figure 4 Vehicle Battery Voltage Drops During Engine Start
The Asset-Link will survive a Engine Start Disturbance, with a reset possible on 12
volt automotive systems or 24 Volt trucking systems. The Asset-Link will function
after the Engine Start Disturbance.
3.2.10 Power Supply Connector ESD
The Asset-Link Power Supply Connector will withstand an Electrostatic Discharge
(ESD) of ±15Kv to all power supply pins of the DB-25 Connector. The discharge
network of 150pf/150ohm with a low impedance ground return follows the standard
IEC 1000-4-2. This ESD is of greater energy than the requirement of Electrostatic
Discharge per SAE J1211 section 4.11, and ensures operation after ESD testing. The
Asset-Link ESD test pass/fail is a functional test at the completion of the discharges.
System Battery Bus Voltage
Keyswitch
ON
Starter
Engaged
Engine
Cranking
Machine
State
Engine Running
+V
sys
+6V for12V system
+12V for 24V system
Time
+4V for12V system
+9.6V for 24V system