Talk:11000 Series plug-in interface: Difference between revisions

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I'm not sure about the digital 11000 mainframes (i.e., 11400 and DSA600),
I'm not sure about the digital 11000 mainframes (i.e., 11400 and DSA600),
but in the 11300, the right plug-in slot is special.
but in the 11300, the right plug-in slot is special.
The vertical signal from the plug-in in the right plug-in slot of the 11300 scopes
 
cannot be routed to the vertical deflection plates of the CRT.
First of all, a little bit about 11300 nomenclature:
However, it can be routed to the horizontal deflection plates.
In most places, the slots are referred to as "LEFT", "CENTER", and "RIGHT".
In some places, though, the slots are referred to as "LEFT", "RIGHT", and "AUX".
This is really confusing since "RIGHT" sometimes refers to the middle slot and sometimes
refers to the rightmost slot. The public documentation (and user interface) are internally consistent
and use the "LEFT", "CENTER", "RIGHT" nomenclature.
 
The RIGHT plug-in slot in 11300 scopes is funtionally a horizontal slot in the following ways:
* The main signal output (pins 11A/11B) from the plug-in in the right plug-in slot cannot be routed to the vertical deflection plates of the CRT.
* The main signal output (pins 11A/11B) from the plug-in in the right plug-in slot can be routed to the horizontal deflection plates.
* The trigger output signals from the LEFT and CENTER plug-ins are routed to the RIGHT plug-in. This can be seen in the 11301 Interface Board schematic, an excerpt of which is here: [[Media:11301 right slot trigger inputs.png|Trigger signal feeds from LEFT and CENTER 11301 plug-ins to RIGHT plug-in]].
 
So in some sense, the right plug-in slot of 11300 mainframes is a horizontal slot.
So in some sense, the right plug-in slot of 11300 mainframes is a horizontal slot.
The right slot in 11300 scopes is sometimes called the "AUX" slot.
But Tektronix did not sell any general-purpose timebase plug-ins for the 11000 Series,
And this leads to some potential confusion around nomenclature:
In some places, the slots are referred to as "L", "R", and "A" (i.e., "AUX").
In other places, the slots are referred to as "L", "C" (i.e., "CENTER"), and "R".
So "R" sometimes refers to the middle plug-in
and sometimes refers to the rightmost plug-in.
 
Tektronix did not sell any general-purpose timebase plug-ins for the 11000 Series,
so it's not clear what they expected people to do with the rightmost plug-in slot.
so it's not clear what they expected people to do with the rightmost plug-in slot.
The rightmost slot is also special (and similar to a 7000-series horizontal slot)
in another aspect:
The trigger output signals from the LEFT and CENTER plug-ins
are routed to the RIGHT plug-in.
This can be seen in the 11301 Interface Board schematic,
an excerpt of which is here: [[Media:11301 right slot trigger inputs.png|Trigger signal feeds from LEFT and CENTER 11301 plug-ins to RIGHT plug-in]].


As a matter of trivia, if one were to call the 11300's RIGHT slot a "horizontal" slot,
As a matter of trivia, if one were to call the 11300's RIGHT slot a "horizontal" slot,
then might be the only Tek scope that has a timebase part of the mainframe and also
then might be the only Tek scope that has a timebase part of the mainframe and also
an easily swappable module.
an easily swappable module.

Revision as of 07:53, 13 April 2018

The part about there being no 11000 horizontal plug-in slots is complicated. I'm not sure about the digital 11000 mainframes (i.e., 11400 and DSA600), but in the 11300, the right plug-in slot is special.

First of all, a little bit about 11300 nomenclature: In most places, the slots are referred to as "LEFT", "CENTER", and "RIGHT". In some places, though, the slots are referred to as "LEFT", "RIGHT", and "AUX". This is really confusing since "RIGHT" sometimes refers to the middle slot and sometimes refers to the rightmost slot. The public documentation (and user interface) are internally consistent and use the "LEFT", "CENTER", "RIGHT" nomenclature.

The RIGHT plug-in slot in 11300 scopes is funtionally a horizontal slot in the following ways:

  • The main signal output (pins 11A/11B) from the plug-in in the right plug-in slot cannot be routed to the vertical deflection plates of the CRT.
  • The main signal output (pins 11A/11B) from the plug-in in the right plug-in slot can be routed to the horizontal deflection plates.
  • The trigger output signals from the LEFT and CENTER plug-ins are routed to the RIGHT plug-in. This can be seen in the 11301 Interface Board schematic, an excerpt of which is here: Trigger signal feeds from LEFT and CENTER 11301 plug-ins to RIGHT plug-in.

So in some sense, the right plug-in slot of 11300 mainframes is a horizontal slot. But Tektronix did not sell any general-purpose timebase plug-ins for the 11000 Series, so it's not clear what they expected people to do with the rightmost plug-in slot.

As a matter of trivia, if one were to call the 11300's RIGHT slot a "horizontal" slot, then might be the only Tek scope that has a timebase part of the mainframe and also an easily swappable module.

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