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[[File:Tek834.jpg|thumb|350px|right]]
{{Instrument Sidebar
The '''Tektronix 834''' is a portable "programmable data communications tester" (serial protocol analyzer) for RS-232 (V.24) circuits. [[015-0361-00 | Option 2]] added a current loop (20/60 mA) input.
|manufacturer=Tektronix
|model=834
|class=Logic Analyzer
|series=830-series communication analyzers
|summary=Programmable data communications tester
|image=Tek834.jpg
|caption=Tek 834
|introduced=1980
|discontinued=(?)
|designers=Pete Janowitz;John Light
|manuals=
* [[Media:070-3399-00.pdf|Tektronix 834 Service Manual]]
* [[Media:070-3400-01.pdf|Tektronix 834 Instruction Manual]]
* [[Media:062-6459-00.pdf|Tektronix 834 Workbook]]
}}
The '''Tektronix 834''' is a portable "programmable data communications tester" (serial protocol analyzer) for RS-232 (V.24) circuits, introduced in 1980.
 
The [[835]] and [[836]] are sister models with extra features, introduced in 1986.
 
[[John Light]] was the software lead on the 834 and wrote some of the key parts of the software.
Other software team members included [[Jeff McMeekin]], [[Randy Deitrich]] and [[Bill Randle]].
On the hardware side was Pete J, and [[Lynn Saunders]].
[[Wendell Damm]] was the enginering project manager.


It can be used as a serial transmission monitor, modem or terminal simulator, or as a bit and block error rate tester (BERT).
It can be used as a serial transmission monitor, modem or terminal simulator, or as a bit and block error rate tester (BERT).
It supports ASCII, EBCDIC and hexadecimal displays on its 12-character alphanumeric display, for data formats with 5 to 9 bits/ character (including parity), asynchronous or synchronous (including HDLC), from 50 to 19200 bits/s.
It supports ASCII, EBCDIC and hexadecimal displays on its 12-character alphanumeric display, for data formats with 5 to 9 bits/ character (including parity), asynchronous or synchronous (including HDLC), from 50 to 19200 bits/s.
ROM packs were available to extend the 834's functions for specific protocols.
ROM packs were available to extend the 834's functions for specific protocols.


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==Links==
==Links==
* [[Media:Tekscope 1980 V12 N4.pdf | Vol. 12 No. 4, Dec 1980: Pete Janowitz and John Light, ''A Programmable Data Communications Tester for First-Line Technicians]]
* [[Media:Tek-834-835-836.pdf | Tektronix 834 / 835 / 836 in 1986 catalog]] (OCR)
{{Documents|Link=834}}


==Manuals==
==Accessories==
* [[Media:070-3400-01.pdf|Tektronix 834 Instruction Manual (PDF, 5.5 MB)]]
 
* [[Media:062-6459-00.pdf|Tektronix 834 Workbook (PDF)]]
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* Option 02 - Current Loop (20/60 mA) Interface ([[015-0361-00]] adapter)
* Option 03 - RS-449 (RS-422/RS-423) Interface ([[A6741]] adapter)
* Option 04 - MIL-STD-188C Interface
* Option 05 - Two Wire Direct Interface ([[A6742]] adapter)
* Option 06 - V.35 Interface ([[A6744]] adapter)
* [[A6741]] − RS-232 / V.24 Tri-state break-out box
 
* [[834R01]] - Asynchronous ROM Pack
* [[834R02]] - Bisync ROM Pack
* [[834R02A]] - Bisynchronous (EBCDIC) ROM Pack
* [[834R03A]] - Link Test ROM Pack
* [[834R04]] - HDLC/X.25 ROM Pack
* [[834R05]] - Extended Instruction ROM Pack
* [[834R06]] - Bisynchronous (ASCII) ROM Pack
* [[834R07]] - PARS/IPARS ROM Pack
* [[834R10]] - SDLC/SNA (RD2) ROM Pack
* [[834R11]] - Extended Monitor ROM Pack
* [[834R13]] - SDLC/SNA (RD3) ROM Pack
* [[830R13]] - SDLC/SNA (RD3) ROM Pack
</div>
 
==Internals==
The 834 is built around a [[Zilog Z-80]] CPU, helped by a [[Motorola 6800|6802]] handling the display/keyboard processing.


==Pictures==
==Pictures==
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Tek-834-f.jpg
Tek-834-f.jpg
Tek834.jpg
Tek834.jpg
Tek 834 01.jpg
Tek 834 02.jpg | Shell closed, front
Tek 834 03.jpg | Rear view
Tek 834 04.jpg | Shell closed, side
Tek 834 06.jpg | Bottom view
Tek 834 07.jpg | Bottom view with cover open, ROM slot visible
Tek_834R05.jpg | 834R05 Extended Instruction Set ROM
Tek_834R06.jpg | 834R06 Extended Instruction Set ROM
</gallery>
</gallery>


[[Category:Logic Analyzers]]
==Components==
[[Category:Introduced in 1980]]
{{Parts|834}}
 
[[Category:RS-232 interface]]
[[Category:RS-232 interface]]
[[Category:830-series communication analyzers]]

Latest revision as of 09:04, 9 October 2023

Tektronix 834
Programmable data communications tester
Tek 834

Produced from 1980 to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 834 is a portable "programmable data communications tester" (serial protocol analyzer) for RS-232 (V.24) circuits, introduced in 1980.

The 835 and 836 are sister models with extra features, introduced in 1986.

John Light was the software lead on the 834 and wrote some of the key parts of the software. Other software team members included Jeff McMeekin, Randy Deitrich and Bill Randle. On the hardware side was Pete J, and Lynn Saunders. Wendell Damm was the enginering project manager.

It can be used as a serial transmission monitor, modem or terminal simulator, or as a bit and block error rate tester (BERT). It supports ASCII, EBCDIC and hexadecimal displays on its 12-character alphanumeric display, for data formats with 5 to 9 bits/ character (including parity), asynchronous or synchronous (including HDLC), from 50 to 19200 bits/s.

ROM packs were available to extend the 834's functions for specific protocols.

In simulation mode, operation is user-programmable with up to 99 program steps that can reference up to 50 "parameter buffers" (registers). Some standard tests like all-character tests or "quick brown fox" tests are predefined.

Links

Documents Referencing 834

Document Class Title Authors Year Links
Tekscope 1980 V12 N4.pdf Article A Programmable Data Communications Tester for First-Line Technicians Pete Janowitz • John Light 1980 834

Accessories

  • Option 02 - Current Loop (20/60 mA) Interface (015-0361-00 adapter)
  • Option 03 - RS-449 (RS-422/RS-423) Interface (A6741 adapter)
  • Option 04 - MIL-STD-188C Interface
  • Option 05 - Two Wire Direct Interface (A6742 adapter)
  • Option 06 - V.35 Interface (A6744 adapter)
  • A6741 − RS-232 / V.24 Tri-state break-out box
  • 834R01 - Asynchronous ROM Pack
  • 834R02 - Bisync ROM Pack
  • 834R02A - Bisynchronous (EBCDIC) ROM Pack
  • 834R03A - Link Test ROM Pack
  • 834R04 - HDLC/X.25 ROM Pack
  • 834R05 - Extended Instruction ROM Pack
  • 834R06 - Bisynchronous (ASCII) ROM Pack
  • 834R07 - PARS/IPARS ROM Pack
  • 834R10 - SDLC/SNA (RD2) ROM Pack
  • 834R11 - Extended Monitor ROM Pack
  • 834R13 - SDLC/SNA (RD3) ROM Pack
  • 830R13 - SDLC/SNA (RD3) ROM Pack

Internals

The 834 is built around a Zilog Z-80 CPU, helped by a 6802 handling the display/keyboard processing.

Pictures

  • Shell closed, front

    Shell closed, front

  • Rear view

    Rear view

  • Shell closed, side

    Shell closed, side

  • Bottom view

    Bottom view

  • Bottom view with cover open, ROM slot visible

    Bottom view with cover open, ROM slot visible

  • 834R05 Extended Instruction Set ROM

    834R05 Extended Instruction Set ROM

  • 834R06 Extended Instruction Set ROM

    834R06 Extended Instruction Set ROM

Components

Some Parts Used in the 834

Part Part Number(s) Class Description Used in
Motorola 6800 156-0426-00 Monolithic integrated circuit 8-bit microprocessor 021-0206-00 • 021-0374-00 • 067-0902-00 • 067-1137-99 • 222 • 222A • 222PS • 2424L • 2445 • 2465 • 4051 • 7912 • 7912AD • 7A16P • 7A29P • 7B81P • 7B90P • 833 • 834 • CG5001 • CG551AP • CG5010 • CG5011 • DF1 • DF2 • DM5010 • MI5010 • SI5010 • PS5004 • PS5010 • SG5010
Zilog Z-80 156-0983-03 • 156-0983-04 Monolithic integrated circuit 8-bit microprocessor 318 • 338 • 5223 • 834 • DAS9100 • SPG-271 • TSG-170
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