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 pplugins 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

IEEE-488 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

• Kahrs, Interfacing to the Tektronix 7000 series