uPASS Target | installation guide
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Figure 8 shows a simplified schematic overview for most of the uPASS Target connections. This figure shows the
overview of the reader in TRANSIT compatible mode determined by SW1-1 (see chapter 4).
Also in TRANSIT compatible mode there are three points (A, B and C) that control the direction of the serial interface to
USB, RS422, RS485 or one Ethernet channel (the other is fixed to the UHF processor):
A. When the USB cable is connected, the USB interface is used
B. The “main comm. interface” setting (see chapter 6.5.1) determines the use of Ethernet or RS422/RS485
C. Determined by SW1-2 (located near the USB port) RS422 or RS485 is used
Figure 8: Schematic overview TRANSIT compatible mode
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