7000 Series plug-in interface

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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.

Links