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9.1 RS-232C Connection
9.1 RS-232C Connection
• To avoid electric shock, always remove the power cord
from the instrument and disconnect any test leads before
connecting the RS-232C cable to the instrument.
• The instrument and modem should be turned off before
connecting them.
• Do not connect or disconnect the cable with power on.
Otherwise, the devices could be damaged.
Align the 9612 RS-232C cable with the connector of the 3169-20/21,
and insert the cable straight in. To prevent damage and contact failure,
do not exert excessive force on the cable.
• Always tighten the screws when connecting the RS-232C
cable.
• If the connector of the PC is not a D-sub9-pin connector, use a
commercially available conversion adapter.
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