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Connecting an Expansion Box to the Host PC
DS1103 Hardware Installation and Configuration March 2004
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To supply power to the DS830 via mains socket
➤ To install your system in a laboratory, use the cable with the
integrated power supply unit. Plug the power supply cable into the
LEMO connector of the DS830.
To supply power to the DS830 via car battery
➤ To install your system in a vehicle, use the cable with the
unterminated end and connect this end to the car battery. Use a
5 A fuse to protect the DS830.
The illustration below shows how to supply power to the DS830 if
installed in a vehicle.
N
It is highly recommended to insert a fuse into the main power
supply wire. The fuse should be installed close to the battery.
If you connect the red wire to the car battery directly, the DS830 will
always be turned on, and the car battery will soon run down if the
engine does not operate. Thus, a switch is highly recommended.
N
Use only a switch and wires that are designed for at least 5 A.
DS830/x
Car battery
(12 V)
Red wire
Black wire
5 A fuse
+
–
(close to battery)
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