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CHAPTER 3: Installation
The four switched ports, A through D, are wired DCE (output data on pin 3, RD).
The master port is wired as DTE. To directly connect a terminal device to the
master port, you need a null-modem cable (see Figure 3-2).
Figure 3-2. Null-modem connection.
Control leads required vary from device to
device. Consult your device’s operations
manual for details on your specific needs.