DTE Clock Rate Reduction

Although the serial interface is intended for use at the default clock rate of 16.384 MHz, you might need to use a slower rate under any of the following conditions:

• The interconnecting cable is too long for effective operation.
• The interconnecting cable is exposed to an extraneous noise source that might cause an unwanted voltage in excess of +1 volt.

  The voltage must be measured differentially between the signal conductor and the point in the circuit from which all voltages are measured (“circuit common”) at the load end of the cable, with a 50-ohm resistor substituted for the generator.

• Interference with other signals must be minimized.
• Signals must be inverted.

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