7000 Series plug-in interface
The 7000-series scopes have two categories of slots, horizontal and vertical, that have partly different but compatible interconnects so that vertical plugins can be installed in horizontal slots and vice versa, but not with all functions.
The interconnect is a 76-pin PCB edge connector. Pinout is given in the following table, where (H) indicates signals available in horizontal slots only, and (V) denotes signals available in vertical slots only.
| A side | B side | |
|---|---|---|
| Pin | Function | Function |
| 1 | Sweep Gate (H) | Delay mode ctl in (H) |
| 2 | Gate common | Delay mode ctl out (V) |
| 3 | A Sweep [note 1] | B Sweep [note 1] |
| 4 | Line trigger | Trigger holdoff (H) |
| 5 | Chop drive | Aux Swp gate (H) |
| 6 | Chop common | ALT drive |
| 7 | Intensity Limit (H) | MF Channel Switch |
| 8 | +5 V | Sweep inhibit (H) |
| 9 | +5 V (lights) | Delay gate (H) |
| 10 | Ready (H) | X comp inhibit (H) |
| 11 | +Signal | −Signal |
| 12 | Signal Ground | Signal Ground |
| 13 | +Trigger (V) [note 2] | −Trigger (V) [note 2] |
| 14 | Lights common | Dual beam Aux Y-Axis (7844) |
| 15 | Single sweep logic | Single sweep reset (H) |
| 16 | Mode | Aux Y axis (H) |
| 17 | Aux Z axis | Aux Z common |
| 18 | +15 V | -15 V |
| 19 | +50 V | -50 V |
| 20 | +Trigger in (H) | −Trigger in (H) |
| 21 | +Aux trigger in (H) | −Aux trigger in (H) |
| 22 | /EOI | /SRQ |
| 23 | /DAV | REN |
| 24 | /IFC | /ATN |
| 25 | /NDAC | /NRFD |
| 26 | Logic Common | /SND |
| 27 | -5.2 V [note 3] | 5.1 V [note 3] |
| 28 | n.c. | n.c. |
| 29 | TS10 | TS9 (DIO8) |
| 30 | TS8 (DIO7) | TS7 (DIO6) |
| 31 | TS6 (DIO5) | TS5 (DIO4) |
| 32 | TS4 (DIO3) | TS3 (DIO2) |
| 33 | TS2 (DIO1) | TS1 |
| 34 | n.c. | n.c. |
| 35 | Force readout | Plugin mode |
| 36 | n.c. | n.c. |
| 37 | Ch. 1 Col | Ch. 1 Row |
| 38 | Ch. 2 Col | Ch. 2 Row |
Pin group function legend
Plugin power HF signals Readout system signals IEEE-488 bus used in 7A16P, 7A29P, 7B90P, digitizer mainframes; data 1-8 on TS2-TS9 lines
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] not provided by most mainframes (digitizers only?). 7A16P connects B27 to A9, requires -5.2 V on A27.