7S12: Difference between revisions

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title=Tektronix 7S12|
title=Tektronix 7S12|
summary=Time Domain Reflectometer / Sampler|
summary=Time Domain Reflectometer / Sampler|
image=7s12-front.jpg|
image=7s12-s6-s52-f.jpg|
caption=Tektronix 7S12 TDR/Sampler|
caption=Tektronix 7S12 TDR/Sampler with [[S-6]] and [[S-52]] heads|
years=1971 – ?|
years=1971 – ?|
type=combined horizontal/vertical plugin|
type=combined horizontal/vertical plugin|
Line 12: Line 12:
}}
}}


The Tektronix 7S12 is a TDR/Sampler plug-in for [[7000-series scopes]].  It occupies two mainframe plug-in bays (one horizontal, one vertical).   
The Tektronix '''7S12''' is a Time Domain Reflectometer / Sampler plug-in for [[7000-series scopes]].  It occupies two mainframe plug-in bays (one vertical, one horizontal).   


The 7S12 has two bays for [[:Category:7000 and 3S series sampling heads|S-series plug-in modules ("heads")]].  The right bay accepts a pulse generator or a trigger recognizer plug-in, whereas the left bay accepts a sampling plug-in.
The 7S12 has two bays for [[:Category:7000 and 3S series sampling heads|S-series plug-in modules ("heads")]].  The right bay accepts a pulse generator or a trigger recognizer plug-in, whereas the left bay accepts a sampling plug-in.


The typical configuration is to have an [[S-6]] on the left and an [[S-52]] on the right for time domain reflectometry, or an [[S-4]] on the left and an [[S-53]] on the right as a generaic sampler.
The typical configuration is to have an [[S-6]] on the left and an [[S-52]] on the right for time domain reflectometry, or an [[S-4]] on the left and an [[S-53]] on the right as a generic sampler.


The 7S12 can also control an optional [[7S11]] through its side contacts, adding a second input channel.
The 7S12 can also control an optional [[7S11]] through its side contacts, adding a second input channel.


Y axis can be scaled in voltage (mV) or distance (ρ) units, X axis in time or distance.
Y axis can be scaled in voltage (mV) or distance (ρ) units, X axis in time or distance.


==Specifications==
==Specifications==
 
{{BeginSpecs}}
* Sweep modes: Single / Repetitive / Manual / External input
{{Spec | Sweep modes | Single / Repetitive / Manual / External input}}
* With S-6 and S-52:
{{Spec | With S-6 and S-52 |
** Pulse: 200 mV into 50 Ω
* Pulse: 200 mV into 50 Ω
** Rise time: < 35 ps for incident step, < 45 ps for displayed reflection
* Rise time: < 35 ps for incident step, < 45 ps for displayed reflection
** Jitter: < 10 ps
* Jitter: < 10 ps
* Weight: 2.13 kg (4.7 lbs)
}}
{{Spec | Sweep modes |
* free-running
* single
* manual
* external input
}}
{{Spec | Weight | 2.13 kg (4.7 lbs)}}
{{EndSpecs}}


==Links==
==Links==
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<gallery>
<gallery>
Image:7s12-front.jpg | Front view without sampling head plug-ins
Image:7s12-front.jpg | Front view without sampling head plug-ins
Image:7s12-s6-s52-f.jpg | Front view with [[S-6]] sampling head and [[S-52]] pulse generator
Image:Tek 7s12.jpg |7S12 with [[S-53]] trigger recognizer in left bay (normally right)
Image:7s12-s6-s52-7613.jpg | 7S12 "self portrait" in [[7613]] storage mainframe
</gallery>
===Inside===
<gallery>
Image:7s12-left.jpg | Left side
Image:7s12-left.jpg | Left side
Image:7s12-left-cover.jpg | Left side with cover.  Side contacts to interface [[7S11]] are exposed.
Image:7s12-left-cover.jpg | Left side with cover.  Side contacts to interface [[7S11]] are exposed.
Line 47: Line 61:
Image:7s12-hoizontal.jpg | Horizontal board
Image:7s12-hoizontal.jpg | Horizontal board
Image:7s12-vertical.jpg | Vertical board
Image:7s12-vertical.jpg | Vertical board
Image:Tek 7s12.jpg |7S12 with [[S-53]] trigger recognizer in left bay (normally right)
</gallery>
</gallery>
 
===Measurements===
<gallery>
Image:7s12-self-portrait.jpg | "Self Portrait" — pulse reflected on S-6 "through" path (approx. 120 ps one way)
Image:7s12-s52-incident.jpg | 7S12 displaying the incident pulse from an S-52 (nom. < 25 ps) through an S-6 head (nom. < 30 ps). Displayed rise time ~35 ps confirms spec.
Image:7s12-5in.jpg | 7S12/S-6/S-52 displaying pulse reflection from ~ 5 in semi-rigid SMA cable. Stored display of two traces. Left trace: cable only, right trace: cable plus SMA-to-BNC adapter (~ 25 mm)
Image:7s12-reflected.jpg | 7S12/S-6/S-52 displaying reflected pulse from end of 5 in semi-rigid SMA cable. Stored display overlaying multiple traces, left to right: cable alone, SMA-to-BNC adapter added, BNC f-f adapter added, (cheap) 50 Ω terminator added.
</gallery>


[[Category:7000 series combined plugins]]
[[Category:7000 series combined plugins]]

Revision as of 13:03, 13 June 2014

{{{manufacturer}}} combined horizontal/vertical plugin
Time Domain Reflectometer / Sampler
Tektronix 7S12 TDR/Sampler with S-6 and S-52 heads

Compatible with [[7000-series scopes]]

Produced from {{{introduced}}} to {{{discontinued}}}

Manuals
(All manuals in PDF format unless noted otherwise)
[[Category:Introduced in {{{introduced}}}]]
Manuals – Specifications – Links – Pictures


The Tektronix 7S12 is a Time Domain Reflectometer / Sampler plug-in for 7000-series scopes. It occupies two mainframe plug-in bays (one vertical, one horizontal).

The 7S12 has two bays for S-series plug-in modules ("heads"). The right bay accepts a pulse generator or a trigger recognizer plug-in, whereas the left bay accepts a sampling plug-in.

The typical configuration is to have an S-6 on the left and an S-52 on the right for time domain reflectometry, or an S-4 on the left and an S-53 on the right as a generic sampler.

The 7S12 can also control an optional 7S11 through its side contacts, adding a second input channel.

Y axis can be scaled in voltage (mV) or distance (ρ) units, X axis in time or distance.

Specifications

Key Specifications

Sweep modes Single / Repetitive / Manual / External input
With S-6 and S-52
  • Pulse: 200 mV into 50 Ω
  • Rise time: < 35 ps for incident step, < 45 ps for displayed reflection
  • Jitter: < 10 ps
Sweep modes
  • free-running
  • single
  • manual
  • external input
Weight 2.13 kg (4.7 lbs)

Links

Pictures

  • Front view without sampling head plug-ins

    Front view without sampling head plug-ins

  • Front view with S-6 sampling head and S-52 pulse generator

    Front view with S-6 sampling head and S-52 pulse generator

  • 7S12 with S-53 trigger recognizer in left bay (normally right)

    7S12 with S-53 trigger recognizer in left bay (normally right)

  • 7S12 "self portrait" in 7613 storage mainframe

    7S12 "self portrait" in 7613 storage mainframe

Inside

  • Left side

    Left side

  • Left side with cover. Side contacts to interface 7S11 are exposed.

    Left side with cover. Side contacts to interface 7S11 are exposed.

  • Right side

    Right side

  • Top view

    Top view

  • Horizontal board

    Horizontal board

  • Vertical board

    Vertical board

Measurements

  • "Self Portrait" — pulse reflected on S-6 "through" path (approx. 120 ps one way)

    "Self Portrait" — pulse reflected on S-6 "through" path (approx. 120 ps one way)

  • 7S12 displaying the incident pulse from an S-52 (nom. < 25 ps) through an S-6 head (nom. < 30 ps). Displayed rise time ~35 ps confirms spec.

    7S12 displaying the incident pulse from an S-52 (nom. < 25 ps) through an S-6 head (nom. < 30 ps). Displayed rise time ~35 ps confirms spec.

  • 7S12/S-6/S-52 displaying pulse reflection from ~ 5 in semi-rigid SMA cable. Stored display of two traces. Left trace: cable only, right trace: cable plus SMA-to-BNC adapter (~ 25 mm)

    7S12/S-6/S-52 displaying pulse reflection from ~ 5 in semi-rigid SMA cable. Stored display of two traces. Left trace: cable only, right trace: cable plus SMA-to-BNC adapter (~ 25 mm)

  • 7S12/S-6/S-52 displaying reflected pulse from end of 5 in semi-rigid SMA cable. Stored display overlaying multiple traces, left to right: cable alone, SMA-to-BNC adapter added, BNC f-f adapter added, (cheap) 50 Ω terminator added.

    7S12/S-6/S-52 displaying reflected pulse from end of 5 in semi-rigid SMA cable. Stored display overlaying multiple traces, left to right: cable alone, SMA-to-BNC adapter added, BNC f-f adapter added, (cheap) 50 Ω terminator added.


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