Keysight Technologies L4490A, Руководство пользователя

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16 Keysight L4490A/L4491A User’s Guide
About the Instrument Recommended Accessories
(1) For product and technical overviews, go to http://www.Keysight.com/find/accessories, select 'RF &
Microwave Test Accessories'. Additional information can also be found in the "RF and Microwave Test
Accessories Catalog" accessible from this site.
(2) Starting in June 2010, the current interrupt function (formerly Option 403) is a standard feature for these
switches. The serial number information below shows which switch units have the current interrupt function
included as standard.
N1810UL: Serial numbers MY07244672 and later
N1810TL: Serial numbers MY07247927 and later
N1811TL: Serial numbers MY07244660 and later
N1812UL: Serial numbers MY07240668 and later
(3) Bracket kits apply to the L4490A/L4491A. The kits include pre-assembled control cables and hardware
for mounting switches/attenuators to the brackets and the bracket assemblies to the chassis. Each bracket
kit includes hardware for mounting five switches. The Y1173A kit allows you to mount up to six switches.
The Cable (only) kits are primarily used with the 34945A/L4445A, but can also be used with the
L4490A/L4491A. These cables must be assembled. Refer to Appendix A for cable assembly instructions.
Switch
Model
Reference
Document
Number
(1)
Coil
Voltage
Option
Position
Indicator
Option
DC Connector
Option
Distribution Board
[number of switches
per board]
Bracket Kit
(3)
[Cable Kit]
(3)