High active pull down trigger

Hi everybody,
I need to make a LabView programmable trigger via TTL signal. The TTL signal should by default be high-active 1 kOhm pull down. When not switched on, the trigger input must be held at 5V, using a 1 kOhm resistance.
I have already a NI USB-6501 device, but if I understand well, this cannot be used for this purpose, can it? What else could I use? Would a NI USB-6509 do?
Many thanks.

minni wrote:
Hi crossrulz,
I'll try to be clearer. What I meant was: I need to trigger a device.
- To keep the device inactive one of its inputs must be held at 5V,
- To swtich it on, I need to pull this input down to 0V.
Can I use a single output line of the NI USB 6501 to do this?
Thanks again.
Yes you can.  A digital output will drive 5V or sink down to 0V.
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