Single line jacks two line jacks, Caution – IBM -4900 User Manual
Page 17
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SINGLE LINE JACKS
TWO LINE JACKS
RJ 14 JACK
RJ 14 JACK
RJ 11 JACK
RJ 11 JACK
CAUTION:
LINE 1
LINE 2
Never install telephone wiring during a lightning storm.
Never install telephone jacks in wet locations unless the jack is specifically designed for wet loca-
tions.
Never touch un-insulated telephone wires or terminals unless the incoming telephone line has
been disconnected at the network interface.
Use caution when installing or modifying telephone lines.
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