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PDA 05  5/30/03  11:35 AM  Page 48
                          Figure 5.7
                          PDA Robot with the         PDA Robotics
                          baud rate set to
                          115200.




















                          The  components  required  for  the  Vishay  TFDS4500  transceiver  are
                          located on the main board circuit, and the actual transceiver itself is
                          connected via the ribbon cable. Figure 5.8 shows the schematic dia-
                          gram connection of the MCP2150’s IR output (pin 2: TXIR) and input
                          pins (pin 3: RXIR) connected to the ribbon cable connector.
                          The IR transceiver schematic shows the pins of the transceiver tied to
                          the appropriate connector pins that line up with those on the main
                          board. Figures 5.9 and 5.10 illustrate this.





















                          Figure 5.8
                          Schematic diagram showing MCP2150 connections to the IR transceiver.

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