GPO On/Off question

danmagicman7 · Post by **danmagicman7** » Wed Jul 28, 2004 12:29 am

When a GPO turns on and off, does the unit turn off both the positive and negative leads to the GPO? I need to know because I am working with transistors and want to know if i should use NPN or PNP transistors...I need to boost the power of my GPO outputs

Tom · Post by **Tom** » Wed Jul 28, 2004 10:42 am

When the GPO turns off the negative terminal is floating. The positive terminal is always connected to +5V. Can you tell me your model number, so I can double check?

danmagicman7 · Post by **danmagicman7** » Mon Aug 09, 2004 7:05 pm

Tom wrote:When the GPO turns off the negative terminal is floating. The positive terminal is always connected to +5V. Can you tell me your model number, so I can double check?

MX 212 USB

What do you mean the negative is "floating"

Tom · Post by **Tom** » Tue Aug 10, 2004 9:54 am

Are you refering to the high power or low power GPO?

danmagicman7 · Post by **danmagicman7** » Mon Aug 23, 2004 11:15 am

both.

Tom · Post by **Tom** » Mon Aug 23, 2004 3:10 pm

When the GPO is turned off you will get 0V on the output.