14
7.2 “RELATIVE”:
Line-In 3 and 4 are set to register RELATIVE events.
Both inputs measure the input voltage via an A/D converter and register the voltage level
as % of a reference voltage of 3.3V.
In the Relative mode it is possible to measure fluctuating parameters and the delta of
these fluctuations, like Temperature or Fuel Levels. If for example the input voltage is
1.32 volt the SMS message will indicate: Li3= 40%.
The Line-Input status is indicated in each GPS coordinate message.
8. Line-Outputs
(TRC0078 only)
The TRC0078 has 2 line-Out terminals which can be used to remotely control systems.
Electrical specification of Output terminals:
Max. Output voltage:
24V
Max. Sink Current:
<500mA
Two Independent controllable Outputs can be used to control the drive circuitry of a
number of remote systems like:
8.1 Commands related to the Output Lines:
ACTIVATE / DEACTIVATE:
To activate the Line-Outputs the following command has to be sent:
[security code]-[LOX]-[ON]
(Where “X” = 1 or 2)
An SMS will be sent to confirm the setting:
“LO1 is active”
or
“Lo2 is active”
[security code]-[LOX]-[OFF]
(Where “X” = 1 or 2)
A reply SMS confirms the setting:
“LO1 is not active”
or
“LO2 is not active”
STATUS Information of Line-Out:
The status of the Line-outputs is indicated in every GSM coordinate message
The Tracker will send the status as follows:
“LO1-ON”
or
“LO1-OFF”
“LO2-ON”
or
“LO2-OFF”
Control immobilizer circuit for Start-Motor
Control Alarm System
Tracker with
2 Line-Out Control lines
