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TTL signal with NI 9381 device

Hi,

 

I want to control a TTL input with the NI 9381. It allows you using a digital output.

 

I have measured the output signal and it was 2.8 V. The control has failed and I think that 2.8 is not enough to control a TTL input.

 

The device specifications:

Output high, VOH Sourcing 100 µA..................2.7 V

 

Could anybody help me?

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What is the specification of your signal sink?
What do you want to drive with your digital output?
Best regards,
GerdW
CLAD expired, using 2009SP1 + LV2011SP1 + LV2017 (+LV2018 sometimes) on Win7+cRIO
Kudos are welcome Smiley Wink

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Hi GerdW, thank you for answer.

 

I want to turn on and off an equipment. The equipment manual says: The voltage applied to the REMOTE BNC connector must not exceed 5.5 V.

 

So, I want to send 0 or 1 (0 or 5 V) to turn on and off.

 

I do not know if I have answered your question. If have not done, ask me again, please.

 

Best regards

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Hi srglzal,

 

when you want a 5V output signal you should

- at first read the manual, especially page 20, with the specifications of your module

- then build a small amplifier to convert from LVTTL to TTL levels…

 

RTFM!

Best regards,
GerdW
CLAD expired, using 2009SP1 + LV2011SP1 + LV2017 (+LV2018 sometimes) on Win7+cRIO
Kudos are welcome Smiley Wink

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