10
NORTEK
The unit will work with any voltage between 12 and 34 VDC, but 24VDC is preferred. When using 12VDC,
current surges of up to 1.5 A may occur, so the required power lines should have a low ohms resistance.
2.3.2 AC version
The AC version can take mains power ranging from 100 to 240 VAC. Power is connected using a standard
IEC mains socket on the rear. The socket contains two 1.6AT fuses.
2.4 Connecting the parts
A Signature VM system basically consists of three parts: a Signature sensor, a GNSS and a computer. The
interface box contains all necessary interconnections and power supplies for the other parts.
Figure 6 Connecting the interface to the PC
Note that only one ethernet port on the PC is configured to connect to the Signature VM Interface. The
system will not work if this is connected to the wrong port!
The second ethernet port may be connected to the local network and is only used to access the internet.
2.4.1 Connecting the Signature Sensor
The Signature sensor is connected through its Ethernet interface. This is the 6-Pin connector on the sensor.
The 8-
Pin connector is not used in this configuration and should be fitted with a ‘dummy’ connector.
USB
Ethernet
