Tektronix 7705 User manual
Keithley Instruments
28775 Aurora Road
Cleveland, Ohio 44139
1-800-935-5595
tek.com/keithley
Model 7705 Control Module
Instructions for use with DAQ6510
077144900 / April 2018 *P077144900* 1
Introduction
The Model 7705 40-Channel Single-Pole Control Module has 40 channels of independent switching. These
channels control power to the device under test (DUT) and switching loads. They can also directly control
equipment such as light indicators and relays.
Figure 1: Model 7705 40-Channel Single-Pole Control Module
Item shipped may vary from model pictured here.
The 7705 includes the following features:
▪ Forty independent Form A switches
▪ Two 50-pin D-sub connectors for use with the Model 7788 50-Pin D-Subminiature Connector Kit
▪ A Model 7788 50-Pin D-Subminiature Connector Kit, which includes two D-sub connectors
The 7705 switching module can be used with the DAQ6510 Data Acquisition and Multimeter System.
If you are using this switching module with the 2700, 2701, or 2750, please see Model 7705 Control
Module User's Guide, Keithley Instruments document number PA-696.
Model 7705 Control Module Instructions for use with DAQ6510
2 077144900 / April 2018
Connection information
Connection and wiring procedures in this document are intended for use by qualified
personnel only. Do not perform these procedures unless qualified to do so. Failure to
recognize and observe normal safety precautions could result in personal injury or death.
The 7705 switching module provides nonmeasurement functions. No channels are connected to the internal
digital multimeter (DMM) (the channels cannot be connected to the backplane). No channels are paired. You
can use the 7705 switching module to control external circuits.
Although the 7705 relays are latching type (relays hold their state even after power has been removed), all
relay states are set to open a few seconds after either a power cycle or a reset command is issued.
You can use control channels independently to close and open channels on the 7705. Refer to the instrument
reference manual section "Multiple channel operation."
For details on channel operation, refer to the instrument reference manual.
Figure 2: 7705 simplified schematic
Model 7705 Control Module Instructions for use with DAQ6510
077144900 / April 2018 3
Module connections
Do not attempt to perform this procedure unless qualified to do so. Failure to recognize and
observe normal safety precautions could result in personal injury or death.
Do not exceed the maximum specifications for the 7705 switching module. Refer to the
specifications provided in the data sheet. Failure to recognize and observe normal safety
precautions could result in personal injury or death.
When looking at the rear connectors of the 7705 switching module, the connector on the left is P1000 and the
connector on the right is P1001, as shown in the following figure. Channel designations are shown in the
following table.
Figure 3: Model 7705 pinouts
Channel designations
P1000
P1001
CH
PIN
CH
PIN
CH
PIN CH
PIN
CH
PIN
CH
PIN
1 IN 6 8 IN
25
15 IN
39 21 IN
6
28 IN
25
35 IN
39
1 OUT
8
8 OUT
26
15 OUT
40 21 OUT
8
28 OUT
26
35 OUT
40
2 IN
10
9 IN
27
16 IN
41 22 IN
10
29 IN
27
36 IN
41
2 OUT
12
9 OUT
28
16 OUT
42 22 OUT
12
29 OUT
28
36 OUT
42
3 IN
14
10 IN
29
17 IN
43 23 IN
14
30 IN
29
37 IN
43
3 OUT
16
10 OUT
30
17 OUT
44 23 OUT
16
30 OUT
30
37 OUT
44
4 IN
17
11 IN
31
18 IN
45 24 IN
17
31 IN
31
38 IN
45
4 OUT
18
11 OUT
32
18 OUT
46 24 OUT
18
31 OUT
32
38 OUT
46
5 IN
19
12 IN
33
19 IN
47 25 IN
19
32 IN
33
39 IN
47
5 OUT
20
12 OUT
34
19 OUT
48 25 OUT
20
32 OUT
34
39 OUT
48
6 IN
21
13 IN
35
20 IN
49 26 IN
21
33 IN
35
40 IN
49
6 OUT
22
13 OUT
36
20 OUT
50 26 OUT
22
33 OUT
36
40 OUT
50
7 IN
23
14 IN
37
27 IN
23
34 IN
37
7 OUT
24
14 OUT
38
27 OUT
24
34 OUT
38