Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave
Multichannel System, Fourth Edition
5
Operating Environment
WARNING The Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave
Measurement System, and Agilent 8163A Lightwave Multichannel System are
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
CAUTION There are two input BNC connectors: the Remote Interlock Connector and the
Trigger Input, see page 202. 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 202. This is a
TTL output. Do not apply an external voltage to this connector.
Additional Safety Requirements
Operation - Before applying power Comply with the installation section.
Additionally, the following shall be observed:
• Do not remove instrument covers when operating.
• Before the instrument is switched on, all protective earth terminals, extension
cords, auto-transformers and devices connected to it should be connected to a
protective earth via a ground socket. Any interruption of the protective earth
grounding will cause a potential shock hazard that could result in serious
personal injury.
• Whenever it is likely that the protection has been impaired, the instrument
must be made inoperative and be secured against any unintended operation.
• There is no user-replaceable fuse in this instrument. The use of repaired fuses
and the short-circuiting of fuseholders must be avoided.
• Adjustments described in the manual are performed with power supplied to the
instrument while protective covers are removed. Be aware that energy at many
points may, if contacted, result in personal injury.
• Any adjustments, maintenance, and repair of the opened instrument under
voltage should be avoided as much as possible, and when unavoidable, should
be carried out only by a skilled person who is aware of the hazard involved. Do
not attempt internal service or adjustment unless another person, capable of
rendering first aid and resuscitation is present. Do not replace components with
power cable connected.
• Do not operate the instrument in the presence of flammable gases or fumes.
Operation of any electrical instrument in such an environment constitutes a
definite safety hazard.
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