Power Supply - SCS Tracker Installationsanleitung

3 Installation
The installation of the SCS Tracker / DSP TNC is simple. You only need to correctly
configure the cable between the SCS Tracker / DSP TNC, the computer and the transceiver, if
this is not already available.
3.1

Power supply

The SCS Tracker / DSP TNC has two inputs for its power connections which can be used
alternatively. Either supply power via the DC-in supply socket at the rear of the unit, or via the
connector for the transceiver (Audio, pin 5). Both connections are decoupled with diodes and
protected against reverse polarity. An input voltage between 10...20 VDC is allowed. The
current consumption is usually around 40-90 mA at 13.8 V and much less in the Tracking-
sleep-mode. The power supply inputs on the device are especially filtered so that harmonics of
the switch-mode regulator cannot pass to the outside of the unit. The inputs are also protected
by a self-resetting fuse.
3.2 USB
The SCS Tracker / DSP TNC is a USB 1.1 device and can be operated in a USB 2.0
environment as well. The connection to the computer is done with the attached USB cable.
The USB section of the modem is powered by the computer's USB interface and optically
isolated to the rest of the modem hardware.
For USB operation an appropriate driver needs to be installed on your computer. This driver is
on the SCS-CD that comes with the modem.
Below you find a short description on how to install the driver on Windows XP (servicepack
2). With earlier Windows versions the installation runs in a similar way.
•
Insert the SCS-CD in the CD-rom drive of your computer.
•
If "Autostart" has started your webbrowser, then close it again.
•
Connect the SCS Tracker / DSP TNC to the power supply while it is still switched off.
•
Now connect the SCS Tracker / DSP TNC to the USB connector of your computer.
•
Attach power to the SCS Tracker / DSP TNC.
•
The PC finds the new hardware (SCS Position-Tracker/TNC) and opens the "Found New
Hardware Wizzard".
•
To the first question if Windows shall connect to "Windows Update to serach for new
software" you answer with "No, not this time" and then click on "Next".
•
The wizzard now wants to install the driver for the SCS Position-Tracker/TNC. Select the
option "Install the software automatically" and click on "Next".
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Figure 1: Power supply connnector (PWR)
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3. Installation
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