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{{Plugin Sidebar 
|manufacturer=Tektronix
|type=021-0374-00 GPIB Decoder
|summary=GPIB Interface
|image=Tek_021_0374_00_Front2.jpg
|caption=021-0374-00 front
|introduced=1986
|discontinued=(?)
|series=7000-series scopes
|manuals=
* [[Media:070-5193-00.pdf|Tektronix 021-0374-00 Manual]]
}}
The '''Tektronix 021-0374-00 GPIB Decoder''' is a [[7000-series plug-ins|7000-series plug-in]] designed to allow
GPIB control of [[7A16P]] or [[7A29P]] programmable amplifiers and/or a [[7B90P]] programmable time base
module in a [[7854|7854 mainframe]]. (The manual warns that of all 7000 series mainframes, only the 7854 has
adequate +5 V supply capacity.)
The -P type plugins were originally designed for the 7000 series digitizers like the [[7912AD]]
that have a built-in GPIB interface. 
The 021-0374-00 replicates the functions of that interface, receiving commands
from GPIB and translating them to the internal serial format expected by the plugins. 
It is based on a [[Motorola 6802]] microcontroller and a [[TMS9914]] GPIB interface chip.
The interface must be installed in the left horizontal (A timebase) bay.  It addresses left vertical,
right vertical and right horizontal plugins through GPIB sub-addresses 1, 2 and 3, respectively.
Data connections from the 021-0374-00 the plugins require flat cables because the relevant bus lines are n/c on the 7854 backplane.
==Links==
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/021-0374-00%20GPIB%20Decoder/021-0374-00_GPIB_Decoder.html 021-0374-00 @ amplifier.cd]
==Pictures==
<gallery>
<gallery>
Image:Tek 021-0374-00 1.jpg
Tek_021_0374_00_Front2.jpg|Front view of an early GPIB Decoder
Image:Tek 021-0374-00 2.jpg
Tek 021-0374-00 7.jpg|Front view of a late GPIB Decoder
Image:Tek 021-0374-00 3.jpg
Tek 021-0374-00 8.jpg|GPIB Decoder with [[7A16P]] & [[7B90P]] in a [[7854]]
Image:Tek 021-0374-00 4.jpg
Tek 021-0374-00 1.jpg|Left side
Image:Tek 021-0374-00 5.jpg
Tek 021-0374-00 15.jpg|Closeup of left side
Image:Tek 021-0374-00 6.jpg
Tek 021-0374-00 4.jpg|Right side
Image:Tek 021-0374-00 7.jpg
Tek 021-0374-00 16.jpg|Closeup of right side
Image:Tek 021-0374-00 8.jpg
Tek 021-0374-00 3.jpg|Rear view of the front panel
Image:Tek 021-0374-00 9.jpg
Tek 021-0374-00 6.jpg|Angeled view
Image:Tek 021-0374-00 10.jpg
Image:Tek 021-0374-00 11.jpg
Image:Tek 021-0374-00 12.jpg
Image:Tek 021-0374-00 13.jpg
Image:Tek 021-0374-00 14.jpg
Image:Tek 021-0374-00 15.jpg
Image:Tek 021-0374-00 16.jpg
</gallery>
</gallery>
==Mounting Procedure==
===Location of electrical components===
<gallery>
Tek_7A16P_late.jpg|A late version of the [[7A16P]] plugin is needed
Tek_7A16P_decoder_conn.jpeg|Location of the connectors for the GPIB decoder on a [[7A16P]]
Tek_7A29P_right_side.jpg|Right side of a [[7A29P]] plugin
Tek_7A29P_decoder_conn.jpeg|Location of the connectors for the GPIB decoder on a [[7A29P]]
Tek_7B90P_late.jpg|A late version of the [[7B90P]] plugin is needed
Tek_7B90P_decoder_conn.jpeg|Location of the connectors for the GPIB decoder on a [[7B90P]]
Tek_7B90P_VR330.jpeg|Location of the zener diode V330 on a late [[7B90P]]
Tek_021_0374_00_connectors.jpg|Location of the connectors to the plugins on the GPIB decoder
</gallery>
===Mechanical components===
<gallery>
Tek 021-0374-00 10.jpg|Bracket for mounting the programmable plugins to the decoder
Tek 021-0374-00 11.jpg|Bracket for mounting the programmable plugins to the decoder
Tek 021-0374-00 12.jpg|Bracket for mounting the programmable plugins to the decoder
Tek 021-0374-00 13.jpg|Bracket for mounting the programmable plugins to the decoder
</gallery>
===Firmware (uploaded BIN files) ===
{| class="wikitable sortable"
! style="text-align: left" | Part number
! class="unsortable" | Location
! style="text-align: left" class="unsortable" | Used in
|-
| [[Media:160-3533-00.bin|160-3533-00.bin]] ([[:File:160-3533-00.bin#filehistory|?]]) || U4060 || up to #B010190
|-
| [[Media:160-3533-01.bin|160-3533-01.bin]] ([[:File:160-3533-01.bin#filehistory|?]]) || U4060 || #B010191 and newer
|}
==Components==
{{Parts|021-0374-00}}
[[Category:7000 series special-function plugins]]
[[Category:7000_series_programmable_plugins]]

Latest revision as of 06:30, 6 December 2023

Tektronix 021-0374-00 GPIB Decoder
GPIB Interface
021-0374-00 front

Compatible with 7000-series scopes

Produced from 1986 to (?)

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

The Tektronix 021-0374-00 GPIB Decoder is a 7000-series plug-in designed to allow GPIB control of 7A16P or 7A29P programmable amplifiers and/or a 7B90P programmable time base module in a 7854 mainframe. (The manual warns that of all 7000 series mainframes, only the 7854 has adequate +5 V supply capacity.)

The -P type plugins were originally designed for the 7000 series digitizers like the 7912AD that have a built-in GPIB interface.

The 021-0374-00 replicates the functions of that interface, receiving commands from GPIB and translating them to the internal serial format expected by the plugins. It is based on a Motorola 6802 microcontroller and a TMS9914 GPIB interface chip.

The interface must be installed in the left horizontal (A timebase) bay. It addresses left vertical, right vertical and right horizontal plugins through GPIB sub-addresses 1, 2 and 3, respectively. Data connections from the 021-0374-00 the plugins require flat cables because the relevant bus lines are n/c on the 7854 backplane.

Links

Pictures

  • Front view of an early GPIB Decoder

    Front view of an early GPIB Decoder

  • Front view of a late GPIB Decoder

    Front view of a late GPIB Decoder

  • GPIB Decoder with 7A16P & 7B90P in a 7854

    GPIB Decoder with 7A16P & 7B90P in a 7854

  • Left side

    Left side

  • Closeup of left side

    Closeup of left side

  • Right side

    Right side

  • Closeup of right side

    Closeup of right side

  • Rear view of the front panel

    Rear view of the front panel

  • Angeled view

    Angeled view


Mounting Procedure

Location of electrical components

  • A late version of the 7A16P plugin is needed

    A late version of the 7A16P plugin is needed

  • Location of the connectors for the GPIB decoder on a 7A16P

    Location of the connectors for the GPIB decoder on a 7A16P

  • Right side of a 7A29P plugin

    Right side of a 7A29P plugin

  • Location of the connectors for the GPIB decoder on a 7A29P

    Location of the connectors for the GPIB decoder on a 7A29P

  • A late version of the 7B90P plugin is needed

    A late version of the 7B90P plugin is needed

  • Location of the connectors for the GPIB decoder on a 7B90P

    Location of the connectors for the GPIB decoder on a 7B90P

  • Location of the zener diode V330 on a late 7B90P

    Location of the zener diode V330 on a late 7B90P

  • Location of the connectors to the plugins on the GPIB decoder

    Location of the connectors to the plugins on the GPIB decoder

Mechanical components

  • Bracket for mounting the programmable plugins to the decoder

    Bracket for mounting the programmable plugins to the decoder

  • Bracket for mounting the programmable plugins to the decoder

    Bracket for mounting the programmable plugins to the decoder

  • Bracket for mounting the programmable plugins to the decoder

    Bracket for mounting the programmable plugins to the decoder

  • Bracket for mounting the programmable plugins to the decoder

    Bracket for mounting the programmable plugins to the decoder

Firmware (uploaded BIN files)

Part number Location Used in
160-3533-00.bin (?) U4060 up to #B010190
160-3533-01.bin (?) U4060 #B010191 and newer

Components

Some Parts Used in the 021-0374-00

Part Part Number(s) Class Description Used in
Motorola 6800 156-0426-00 • 156-2413-00 • 156-5472-01 Monolithic integrated circuit 8-bit microprocessor 021-0206-00 • 021-0374-00 • 067-0902-00 • 067-1137-99 • 222 • 222A • 222PS • 2424L • 2445 • 2465 • 2467 • 4051 • 7250 • 7912 • 7912AD • 7A16P • 7A29P • 7B81P • 7B90P • 833 • 834 • 835 • 836 • CG5001 • CG551AP • CG5010 • CG5011 • DF1 • DF2 • DM5010 • FG5010 • MI5010 • SI5010 • PS5004 • PS5010 • SG5010 • Keithley 181 • Keithley 182 • Keithley 175 • Keithley 175A • Keithley 191 • Keithley 192 • Keithley 195 • Keithley 195A • Keithley 197 • Keithley 220 • Keithley 224 • Keithley 230 • Keithley 263 • Keithley 485 • Keithley 580 • Keithley 617
TMS9914 156-1444-00 • 156-1444-01 Monolithic integrated circuit GPIB controller 11301 • 11301A • 11302 • 11302A • 2221 • 2230 • 2424L • 2440 • 4052A • 4054A • 021-0374-00 • 067-1137-99 • AM700 • DC5009 • DC5010 • DM5010 • DM5110 • DM5120 • DM5520 • FG5010 • MI5010 • SG5010 • SG5030 • SI5010 • PS5004 • PS5010 • Keithley 182 • Keithley 193A • Keithley 195 • Keithley 195A • Keithley 196 • Keithley 197 • Keithley 199 • Keithley 220 • Keithley 224 • Keithley 230 • Keithley 263 • Keithley 617
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