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FAQ
What is the DC channel to channel isolation on SCM5B backpanels?
DC channel to channel isolation for all SCMPB backpanels is 2121 VDC.
Due to resource constraints on my computer, I'm unable to open the three dimensional CAD models provided on your website. Does Dataforth provide two demensional CAD models for download as well?
Two dimensional CAD models can be generated upon customer request. Please contact Customer Service for assistance.
Does the 8B series backplanes identify the module slots on the PWB via silkscreen or other methods? Does it also mark the terminal blocks +/- inputs?
The 8B backpanels identify the module slots and their associated terminal block with silkscreen text (this includes the +/- inputs). The text is descriptive and matches up with the diagrams in our datasheets.
Why is the CJC enable jumper required for 8B36 if -EXC is not connected?
The CJC jumper is actually not required for the 8B36. In this case it is a “don’t care.” Some modules require it to be removed, but for the ones that don’t it is easier to just have it remain installed.
How will the measurement of my thermocouple module be affected if I use a backplane without CJC?
CJC is mandatory when using thermocouple input modules, or else you will not get an accurate measurement. Make sure to always purchase a backplane with CJC installed if you are using a thermocouple input module.
Do I need to specify what thermocouple modules I am ordering when I purchase a backplane with CJC installed?
No, the CJC will work for all thermocouple modules that can be mounted to that backplane.
Can the DIN rail mounting hardware be easily removed from the SCMPB04?
Yes, the DIN rail mounting hardware for the SCMPB04 can be easily detached and reattached from the board.
What are the different ways I can connect to the 8BP04 to receive output data?
The 8BP04 has both a DB25 connector and output screw terminals to access the output signal from the modules mounted on the 8BP04. If you decide to use the DB25 connector we also offer the SCMXCA006-01, -02, -07 which are 1m, 2m, and 7m, varieties of a DB25 Male/Female cable assembly.
What types of DIN rails does the DIN rail mounting of the SCMPB04 attach to?
The DIN rail mounting of the SCMPB04 can mount to DIN rail types EN 50022-35x7.5, EN 50022-35x15, EN 50035-G32. These can be purchased as part numbers SCMXRAIL1-XX, SCMXRAIL2-XX, pr SCMXRAIL3-XX where XX is specified as the length of the rail in meters.
Can I use the SCMXBEFE and SCMXSE accessories to make my SCMPB01/2 DIN rail mountable?
No, converting any of the 16 channel SCM5B backplanes to something DIN rail mountable is a much more involved process than the SCMPB03/04. If you would like a 16 channel SCM5B backplane that can mount on a DIN rail you must purchase an SCMPB01-2, SCMPB01-3, SCMPB02-2 or SCMPB02-3.
If I purchase a backplane with no CJC, will I still be able to use modules that require the CJC enable jumper to be installed?
Yes. Backplanes with no CJC will still come with the CJC enable installed on the backplane.
Can I power multiple 8B backplanes off of a single power supply?
You can use a single 5V power supply to power multiple backplanes, but you need to be aware of the current rating of your power supply and the current draw of your 8B modules. The current rating of your power supply needs to be greater than the total current draw of all the modules in your system (ideally 1.5x the total current draw). You can check the current draw of various 8B modules by checking their datasheets.
