7000 Series plug-in interface: Difference between revisions
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| 2 || Gate common || Delay mode ctl out (H-A) | | 2 || Gate common || Delay mode ctl out (H-A) | ||
|- | |- | ||
| 3 || A Sweep (V & H-A) ''[ | | 3 || A Sweep (V & H-A) ''[note 1]'' || B Sweep (V & H-B) ''[note 1]'' | ||
|- | |- | ||
| 4 || Line trigger || Trigger holdoff (H) | | 4 || Line trigger || Trigger holdoff (H) | ||
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| 12 || Signal Ground || Signal Ground | | 12 || Signal Ground || Signal Ground | ||
|- bgcolor="Yellow" | |- bgcolor="Yellow" | ||
| 13 || +Trigger (V) ''[ | | 13 || +Trigger (V) ''[note 2]'' || −Trigger (V) ''[note 2]'' | ||
|- | |- | ||
| 14 || bgcolor="Pink"| Lights common || Dual beam Aux Y-Axis ([[7844]]) | | 14 || bgcolor="Pink"| Lights common || Dual beam Aux Y-Axis ([[7844]]) | ||
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| 20 || +Trigger in (H) || −Trigger in (H) | | 20 || +Trigger in (H) || −Trigger in (H) | ||
|- bgcolor="Yellow" | |- bgcolor="Yellow" | ||
| 21 || +Aux trigger in (H) || −Aux trigger in (H) | | 21 || +Aux trigger in (H) ''[note 5]''|| −Aux trigger in (H) ''[note 5]'' | ||
|- bgcolor="LightBlue" | |- bgcolor="LightBlue" | ||
| 22 || /EOI | | 22 || /EOI ''[note 6]'' || /SRQ ''[note 6]'' | ||
|- bgcolor="LightBlue" | |- bgcolor="LightBlue" | ||
| 23 || /DAV || REN | | 23 || /DAV || REN | ||
|- bgcolor="LightBlue" | |- bgcolor="LightBlue" | ||
| 24 || /IFC ''[ | | 24 || /IFC ''[note 3]'' || /ATN | ||
|- bgcolor="LightBlue" | |- bgcolor="LightBlue" | ||
| 25 || /NDAC || /NRFD | | 25 || /NDAC || /NRFD | ||
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| 26 || Logic Common || /SND | | 26 || Logic Common || /SND | ||
|- bgcolor="Pink" | |- bgcolor="Pink" | ||
| 27 || −5.2 V ''[ | | 27 || −5.2 V ''[note 4]''|| 5.1 V ''[note 4]'' | ||
|- | |- | ||
| 28 || n.c. || n.c. | | 28 || n.c. || n.c. | ||
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* ''Line Trigger'' − Approx. 1 V<sub>RMS</sub> mains-frequency signal from power supply (through transformer) | * ''Line Trigger'' − Approx. 1 V<sub>RMS</sub> mains-frequency signal from power supply (through transformer) | ||
* ''Trigger Holdoff'' − | * ''Trigger Holdoff'' − | ||
* ''Chop Drive'' − | * ''Chop Drive'' − 0/+5 V | ||
* ''Chop Mode Sense'' − | * ''Chop Mode Sense'' − | ||
* ''Aux Sweep Gate'' − | * ''Aux Sweep Gate'' − | ||
* ''Alt Drive'' − | * ''Alt Drive'' − 0/+5 V | ||
* ''Intensity Limit'' − Switched to ground by timebase in slow sweep speeds (≥100 ms/Div), limits beam intensity to protect the CRT [[phosphor]] | * ''Intensity Limit'' − Switched to ground by timebase in slow sweep speeds (≥100 ms/Div), limits beam intensity to protect the CRT [[phosphor]] | ||
* ''Mainframe Channel Switch'' − | * ''Mainframe Channel Switch'', ''Mainframe Mode'' − 0/+5 V; plug-in output is displayed when MF Channel Switch <> MF Mode | ||
* ''Sweep Inhibit'' − | * ''Sweep Inhibit'' − | ||
* ''Delay Gate'' − negative-going pulse starting at the end of the delay period, and lasting until the end of the sweep from the delaying timebase. +Gate Output on mainframe uses Delay Gate from H slot B when Delay Gate is selected. | * ''Delay Gate'' − negative-going pulse starting at the end of the delay period, and lasting until the end of the sweep from the delaying timebase. +Gate Output on mainframe uses Delay Gate from H slot B when Delay Gate is selected. | ||
| Line 133: | Line 133: | ||
* ''Single Sweep Logic'' − | * ''Single Sweep Logic'' − | ||
* ''Single Sweep Reset'' − Switched to ground to reset single sweep. | * ''Single Sweep Reset'' − Switched to ground to reset single sweep. | ||
* ''Aux Z Axis'' − Current-driven input to mainframe allowing plugins to modulate beam intensity, e.g. in dual timebase A intensified by B display mode; driven only when plug-in output is displayed (see MF Ch Switch above) | |||
* ''Aux Z Axis'' − Current-driven input to mainframe allowing plugins to modulate beam intensity, e.g. in dual timebase A intensified by B display mode | * ''Trigger In'' − Trigger signal input on H plugin, routed from V plugin's trigger output. Differential, 50 Ω per side, 50 mV/Div (differential). | ||
* ''Trigger In'' − Trigger signal input on H plugin, routed from V plugin's trigger output. Differential, 50 Ω per side. | |||
* ''Aux Trigger In'' − | * ''Aux Trigger In'' − | ||
* ''GPIB lines'' − Control signal functions are the same as their [[GPIB interface|IEEE-488 (GPIB)]] equivalents. Time slot lines 2 to 9 double as IEEE-488 data lines. | * ''GPIB lines'' − Control signal functions are the same as their [[GPIB interface|IEEE-488 (GPIB)]] equivalents. Time slot lines 2 to 9 double as IEEE-488 data lines. | ||
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''[note 4]'' Not provided by most mainframes (digitizers only?). [[7A16P]] connects B27 to A9, requires −5.2 V on A27. | ''[note 4]'' Not provided by most mainframes (digitizers only?). [[7A16P]] connects B27 to A9, requires −5.2 V on A27. | ||
''[note 5]'' According to the [[Media:Tek 11000-series plug-in to main frame interface manual.pdf|11000-series interface manual]], ''many 7k plug-in units ground pin B21 or connect it to pin A21'', and ''The [[7D10]], [[7D11]], [[7D14]], [[7S14]], and possibly some others have pin A21 grounded''. | |||
''[note 6]'' A22 = Busy output from [[7D12]], [[7D15]], B22 = /Hold input to 7D12, 7D15; no corresponding mainframe connections known | |||
==Links== | ==Links== | ||
Revision as of 07:52, 29 August 2018
Tektronix 7000 series oscilloscope mainframes have one (7912) or two vertical plug-in slots, and zero (7612D), one (7xx3, 7912) or two (7xx4) horizontal plug-in slots.
The interconnect on either slot type is a 76-pin PCB edge connector. The pinout on vertical and horizontal slots is not identical but compatible to the point that vertical plugins can be installed in horizontal slots and vice versa. However, in that case, some functions may be unavailable − for example, trigger signals are only routed to H slots so a timebase in a V slot must be externally triggered.
Looking into the mainframe from the front panel, "A" pins are left of the connector centerline (on the plug-in PCB's component side) and "B" are on the right (on the plugin PCB's solder side). Pins are numbered from 1 at the bottom to 38 on the top. In the following table, (H) indicates signals available in horizontal slots only, (H-A) is horizontal slot A, (H-B) is horizontal slot B, and (V) denotes signals available in vertical slots only.
Pin group function legend
|
Description of signals
|
Notes
[note 1] Output from H plugins, input on V plugins
[note 2] Output from V plugins, unused and terminated 50 Ω to ground in mainframe H slots
[note 3] In programmable mainframes, A24 is pulled high to +3 V, indicating to programmable plug-ins to use TS2-TS9 as GPIB lines and a modified readout logic using only TS1 and TS10, with TS1 being active in time slot 1 as in other mainframes, and TS10 being active in each time slot.
[note 4] Not provided by most mainframes (digitizers only?). 7A16P connects B27 to A9, requires −5.2 V on A27.
[note 5] According to the 11000-series interface manual, many 7k plug-in units ground pin B21 or connect it to pin A21, and The 7D10, 7D11, 7D14, 7S14, and possibly some others have pin A21 grounded.
[note 6] A22 = Busy output from 7D12, 7D15, B22 = /Hold input to 7D12, 7D15; no corresponding mainframe connections known
Links
