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Home » Hardware » Interfaces » ULN2 not working with Mac Mini and mavericks 10.9.5
Re: ULN2 not working with Mac Mini and mavericks 10.9.5 [message #86248 is a reply to message #86247] Thu, 03 September 2015 06:12 Go to previous messageGo to previous message
bj is currently offline  bj
Messages: 668
Registered: July 2011
Senior Member
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The ULN-2 comes with a 24v (or 18v more recently) power supply with a 4 Pin XLR connector. If you plug that in, the box should power up. If it doesn't, then there is either something wrong with the box or with the power supply. If that's the case, please open a support ticket with our support team so we can help you out.

https://mhsecure.com/support
 
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