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The Tektronix Type S-311 Programmable Dual-Trace Sampling Plug-In Unit | The '''Tektronix Type S-311''' Programmable Dual-Trace Sampling Plug-In Unit | ||
is a [[560-series plug-ins|560-series plug-in]] designed for use | is a [[560-series plug-ins|560-series plug-in]] designed for use | ||
in a [[567]] as part of a Tektronix [[S2000]] and [[S3000]] Series system. | in a [[567]] as part of a Tektronix [[S2000]] and [[S3000]] Series system. | ||
In contrast to the [[3S6]] which uses external sampling heads, | In contrast to the [[3S6]] which uses external sampling heads, | ||
the S-311 contains two samplers internally, like the [[3S76]] or [[3S1]]. | the S-311 contains two samplers internally, like the [[3S76]] or [[3S1]]. | ||
However, unlike the 3S76 and 3S1, the S-311 gets its signal inputs via | However, unlike the 3S76 and 3S1, the S-311 gets its signal inputs via | ||
BNC | [[BNC connector]]s on the rear panel. | ||
The input impedance of each input is | The input impedance of each input is 50 Ω. | ||
When the S-311 is inserted into the mainframe, its BNC input connectors must be manually connected, | |||
as they are not designed to pair with a corresponding connector in the plug-in bay bulkhead. | |||
connector in the plug-in bay bulkhead. | |||
The [[567]] mainframe has holes in the plug-in bay bulkhead at the location | The [[567]] mainframe has holes in the plug-in bay bulkhead at the location | ||
of the signal input connectors and programming connector of the S-311. | of the signal input connectors and programming connector of the S-311. |