Section 9: Series 3700 Module Schematics and Connections
Series 3700 System Switch/Multimeter User's Manual
9-12
3700S-900-01 Rev. C / July 2008
See Section 9 of the Reference Manual for more interlock related commands
and details.
Interlock pin numbers
The following table shows the interlock pin numbers for all applicable switching
modules.
Model
Interlock Circuit
Interlock
Pins
Backplane relays
affected
Other relays
affected
3720
Multiplexer #1
76, 78
n911 through n916
Multiplexer #2
76, 78
n921 through n926
3721
Multiplexer #1,
Amps, DMM
33, 50
n911 through n917
n041, n042 (Amps),
n928 (DMM HI / SHI)
Multiplexer #2
1, 34
n921 through n927
3722
No Interlocks
Present
-
-
3723
Multiplexer #1
76, 78
n911 through n916
Multiplexer #2
76, 78
n921 through n926
3724
Multiplexer #1
76, 78
n911 through n916
Multiplexer #2
76, 78
n921 through n926
3730
Matrix #1
48, 50
n911 through n916
3740
Independent Switch
Bank #1
48, 50
n911 through n916
3750
No interlocks
present
WARNING
Take special care not to inadvertently wire high voltage
analog signals to the interlock pins. Instrument damage or
loss of functionality can occur.