Cisco Model D-PCG1000 PowerKEY CAS Gateway Installation Guide
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Chapter 3 Operating the DAVIC QPSK Demodulator
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78-545617-01 Rev F
1 Press the OPTIONS key on the front panel of the QPSK demodulator eight
times. The Parity screen appears.
2 Press the Up or Down Arrow keys to choose one of the following parity sense:
EVEN PARITY—This is the most common form of parity. If the number of
set bits is even, choosing even parity sets the parity bit to 0. If the number of
set bits is odd, choose even parity sets the parity bit to 1.
ODD PARITY—If the number of set bits is even, choosing odd parity sets
the parity bit to 1. If the number of set bits is odd, choosing odd parity sets
the parity bit to 0.
NONE—When you choose none, the QPSK demodulator will not perform
parity checking.
3 Press ENTER to save the changes to nonvolatile memory and return to the
Default Status screen.
Changing the Stop Bits
In asynchronous communications, a bit indicates that a byte has just been
transmitted. Every byte of data is preceded by a start bit and followed by a stop bit.
Follow these steps to change the value of the diagnostic port stop bits.
1 Press OPTIONS on the front panel of the QPSK demodulator nine times. The
Follow these steps to change the value of the diagnostic port stop bits.
1 Press OPTIONS on the front panel of the QPSK demodulator nine times. The
Stop Bits screen appears.
2 Press the Up or Down Arrow keys to choose one of the following stop bit values:
1
2
3 Press ENTER to save the changes to nonvolatile memory and return to the
Default Status screen.
Changing Reload/Restart
Follow these steps to reload or restart the QPSK demodulator.
1 Press OPTIONS on the front panel of the QPSK demodulator ten times. The
1 Press OPTIONS on the front panel of the QPSK demodulator ten times. The
Reload/Restart screen appears.
2 Press ENTER to reload or restart the QPSK demodulator.