1-5
Installation
Installation
Figure1-3. The adapter cable
CAUTION Agilent 83491A Modules: Maximum safe signal input level is ±5V. The input
circuits can also be damaged by electrostatic discharge (ESD). Before
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 i nstrument. Be sure
that the instrument is properly earth-grounded to prevent buildup of static
charge.
CAUTION Agilent 83492/3A Modules: Maximum safe signal input level is +3 dBm.
7On the Agilent 83480A, press the Trigger key and then the Source softkey. Then,
select trigger 2 (the Agilent 83491/2/3A module) for the trigger source.
8On the Agilent 83491/2/3A module, repeatedly press the SELECT key until a
front-panel light indicates the data rate of the signal. S ee Figure1-4 on
page 1-6.
Green and red data-rate lights
The data-rate indicator lights change color between red and green to show which data
rate is selected. A red light does not indicate a problem. A red light shows that the adja-
cent red data rate label is selected. A green light shows that the adjacent green data
rate label is selected. Repeatedly pressing the SELECT key cycles through the selections
in one color before switching to the opposite color. On Agilent83491A modules for
example, the first selection cycle shows 155 Mb/s selected. The second section cycle
shows 1062 Mb/s selected.