In This Guide
Operating Guide xvii
Options
The options available for the Agilent 53181A 225 MHz Frequency Counter are listed
following this paragraph. Specifications for the options are listed in Chapter 3,
“Specifications.” If you’ve purchased an option with the initial order, it will be
installed at the factory and ready for operation at delivery. Refer to the “Retrofitting
Options” chapter in the Assembly-Level Service Guide for instructions on field
installation of the options.
NOTE The “0s” and “1s” in the following option numbers are numeric characters (that is,
they are not letters).
Hardware
• Medium Stability Oven Timebase, Option 001
• DC Power Input, Option 002
• High Stability Oven Timebase, Option 010
• Ultra High Stability Oven Timebase, Option 012
• 1.5 GHz RF Input Channel (Channel 2), Option 015
• 3.0 GHz RF Input Channel (Channel 2), Option 030
• 5.0 GHz RF Input Channel (Channel 2), Option 050
• 12.4 GHz RF Input Channel (Channel 2), Option 124
• Rear Terminals
*
, Option 060
• Rack Mount Kit, Option 1CM
Support
• 5-year Return to Agilent for Repair, Option W50
• 5-year Return to Agilent for Calibration, Option W52
*
Channel 1 will have both front and rear terminals. Option 015 and Option 030 Channel 2 will have a rear
terminal only. Option 050 and Option 124 Channel 2 will have a front terminal only.
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