Hardwareproblem: Barcodescanner with Keyboard

[Sky14657]

I have one - hopefully - simple question:
Is it possible that a handscanner, who shares a connection with the keyboard, needs to much power so that the BIOS-poweron-test fails?
I tried several configurations with different keyboards, most of them work perfectly with the scanner unconnected; fail on start with the scanner connected. The scanner himself works without a problem...

 

[DougP]

What kind of scanner is it? And do you have a power supply connected to it?

DougP, MCP

 

[awarnica]

We had a similar situation, where we had to get a scanner with a power supply attached, but the problem was that the only model we could get with the attached power supply didnt plug into the keyboard - it plugged into the comport!

We had to add code to capture the comport data in our application and interpret it as keyboard data.

Hope you can get a power supply for the keyboard wedge!

We were using small machines where a normal PC supplied enough power but the smaller custom machines did not hence the problem.

You may want to check with the PC vendor as well.

Andrew

 

[Sky14657]

No, there isn't a power supply for the scanner... and as the workstations there don't have a harddisk installed, I hope there will be no workaround with port-capturing necessary. I even don't try to figure out the consequences for the system than.

Thanks for your replies.

 

[awarnica]

If you end up having to use a comport scanner, and dont want to write the code for it, check out this app:

http://www.taltech.com/TALtech_web/products/bcwedge.html

It captures comport data and transforms it into keyboard data. We used this temporarily until we could do the code ourselves. There are also other simliar applications if you search for them.