3-11
Using the Infiniium DCA
Using Plug-in Modules
You can use 8348x and 5475x series plug-in modules
In addition to a complete line of modules designed spec ifically for this instru-
ment, modules designed for use with HP/Agilent 83480A and 54750A main-
frames can also be installed into the Infiniium DCA. The 83 48x and 5475x
series plug-in modules are equipped with a trigger input on the individual
module front panels. Repeatedly press the Infiniium DCA ’s front-panel Trigger
Source button until the label for the desired trigger sour ce is lit.
CAUTION Electrical channel input circuits and th e trigger input circuit can be damaged
by electrostatic discharge (ESD). Avoid applying static discharges t o the front-
panel input connectors. Prior to connecting any coaxial cable to the
connectors, momentarily short the center and outer conductors of the cable
together. Avoid touching the front-panel input connectors without first
touching the frame of the instrument. Be sure that the instrument is properly
earth-grounded to prevent buildup of static charge. Wear a wrist-strap or hee l-
strap.
CAUTION Optical channel fiber-optic connectors are easily damaged when connected to
dirty or damaged cables and accessories. When you use improper cleaning and
handling techniques, you risk expensive instrument repairs , damaged cables,
and compromised measurements. Before you connect any fiber-optic cable to
the digital communications analyzer, refer to “Cleaning Connections for
Accurate Measurements” on page 1-30.