11000 Series plug-in interface

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The Tektronix 11000 Series plug-in interface is mechanically almost identical to the 7000 Series plug-in interface. The only mechanical difference is at the top of the connector. The 11000 Series has a had a protruding narrow horn where the 7000 Series plug-ins have a wider horn at the top of the connector with electrical connections in some cases, e.g., in the 7A21.

The Tektronix 11000 Series plug-in interface is electrically partially the same as the 7000 Series interface. The power pins are the same, and the signal out pins are the same. There are no horizontal plug-in slots (timebase is internal to the instrument). 7000-series plug-ins provide a single trigger feed to the mainframe on pins A13/B13 (differential). 11000-series plug-ins also provide a trigger feed on pins A13/B13, and also provide trigger signals on B37/B38 and B35/B36.

11000-series plug-ins do not implement the 7000-series readout interface. The pins that are used for readout in the 7000-series are not used in the 11000 Series.

In the 11000 Series architecture, the mainframe communicates with the plug-in over a serial digital link called SDI. SDI uses pins A20, A21, and B21 on the plug-in connector. Those pins were not used on vertical plugins in the 7000-series interface (and the 11000-series does not support horizontal plugins).

11000-series mainframes send a calibration voltage to plug-in via pins B35/B36. Those pins were not used in the 7000-series interface.

The 11000-series interface uses pin B20 as an "11k Detector". 11000-series plug-ins have a pull-up resistor on pin B20. 7000-series (vertical) plug-ins left pin B20 unconnected.

Pinout

A side B side
Pin Function Function
1 Sweep Gate n.c.
2 Gate common n.c.
3 n.c. n.c.
4 n.c. n.c.
5 Sequence clock n.c.
6 Ground Sequence Sync
7 n.c. n.c.
8 +5 V n.c.
9 +5.1 V n.c.
10 +5.1 V Ground
11 +Vertical −Vertical
12 Signal Ground Signal Ground
13 +Trigger −Trigger
14 Ground +5.1 V
15 n.c. n.c.
16 n.c. n.c.
17 n.c. Ground
18 +15 V -15 V
19 n.c. [note 1] n.c. [note 1]
20 SDI data MF→PI 11k detector
21 SDI clock SDI data PI→MF
22 Shield Ground
23 n.c. n.c.
24 n.c. n.c.
25 n.c. n.c.
26 n.c. n.c.
27 n.c. n.c.
28 n.c. n.c.
29 -5 V n.c.
30 -5 V n.c.
31 n.c. Ground
32 n.c. Ground
33 Ground n.c.
34 Ground n.c.
35 −CH2 Trig out Cal GND sense
36 +CH2 Trig out Cal voltage
37 Ground −CH1 Trig out
38 Ground +CH1 Trig out


Pin group function legend

Plugin power
HF signals
Plugin control interface

Notes

[note 1] 7000 mainframes provide ±50 V supplies on A19/B19, 11000 series does not (plugins requiring 50 V don't work)