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)
X.21 Signal Converter or Digital Data Service Adapter (DDSA)
If you are connecting the work station controller to a modem/DeE
or a channel service unit that is not yet connected, push the
connector into the receptacle and turn the thumbscrews clockwise
until tight. Go to
step~.
To a 5294
Control Unit
Thumbscrews
DDSAor X.21
Signal Converter
Connector
Modem/DCE or
To Communication Line
Chapter 4. Communications Line Connection
43
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