HP 8163A User Manual page 6

WAR NI NG
CAU TI O N
Safety Summary
• Before switching on the instrument, the protective earth terminal of
the instrument must be connected to a protective conductor. You can
do this by using the power cord supplied with the instrument.
• Do not interrupt the protective earth connection intentionally.
The following work must be carried out by a qualified electrician.
All local electrical codes must be strictly observed. If the plug on
the cable does not fit the power outlet, or if the cable is to be
attached to a terminal block, cut the cable at the plug end and rewire
it.
The color coding used in the cable depends on the cable supplied. If
you are connecting a new plug, it should meet the local safety
requirements and include the following features:
• Adequate load-carrying capacity (see table of specifications).
• Ground connection.
• Cable clamp.
Operating Environment
The HP 8163A Lightwave Multimeter & HP 8164A Lightwave
Measurement System is not designed for outdoor use. To prevent
potential fire or shock hazard, do not expose the instrument to rain or
other excessive moisture.
Input/Output Signals
There are two input BNC connectors: the Remote Interlock Connector and
the Trigger Input, see page 152. These are TTL inputs. A maximum of 5 V
can be applied as an external voltage to either of these input connectors.
There is one output BNC connector: the Trigger Output, see page 152. This
is a TTL output. Do not apply an external voltage to this connector.
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