17
Supply voltage
7 Installation
Instruction book, IQAN- G3
Supply voltage
W
ARNING
Before any installation of the IQAN system can take place, make sure the ignition lock
is turned off and the battery is disconnected.
Connecting of Supply Voltage
The supply voltage, should be within the operating range, see Appendix A, on page 22.
Connect the supply voltage to +BAT, position 2 and -BAT, position 1. Protect the
module by using a fuse. Requisite fuse level should be 1 A, fast (F).
Connecting the voltage supply.
N
OTICE
Connect the modem to the same power and ground as the IQAN master.
The power supply must be common to both the modem and the master unit to ensure
trouble free communication. Most importantly, the ground connection (-BAT), must be
the same.
N
OTICE
Do not use the chassis as the negative terminal.
Polarity reversal
The IQAN-G3 module is protected against power supply polarity reversal, provided an
external fuse, max 1 A (Fast) is being used.
If this fuse is not used, polarity reversal can damage the unit.
W
ARNING
Do not connect the housing to Ground externally. This will suspend the reverse voltage
protection of the power supply. Applying a reverse voltage in this case will destroy the
supply circuits.
+BAT, pos. 2
1 A
-BAT, pos.1
*
* Symbol for disconecting switch for
battery, ignition lock and other fuses.
+BA
T
-B
A
T
IQAN-G3
IQAN master
E-stop
