Power requirements of SCXI-1104C module

[stefano_m]

Hallo, here is my question:

In the Front Signal Connector of the SCXI-1104C module is available a pin (A1, +5V), with the description "+5VDC Source".

In the Appendix A of the User Manual, I see that the power requirements of the module (5V supply) is 15 mA max.

This means I can use only 35 mA from this power terminal? The "SCXI Bus System Specification" refer to 50 mA per Slot of +5V (Average, with SCXI-1000 Chassis).

Thank you for your comments!

Stefano

[Manji75]

Hi,

yes, you are right. You can't source more than 15 mA from the 5 V supply.

The 50 mA value found in the "SCXI Bus System Specification" refers to the current supply

between the chassis and the module, so you have to refer to the former specification.

Bye,

Matteo Foini

AE - NI Italy

[stefano_m]

Thank you, Matteo.

It's not a great amount of current, but I'll try anyway to develop my external circuit.

Stefano