UPS + com1 port connection problem

[CaptainHaplo]

ok - lets start from the beginning.

The cable - being new and provided - we can rule out being an issue. They wouldn't provide a crossover by mistake either - so lets figure the issue is elsewhere.

Couple of things that can make the com port not function as intended. Check the documentation and see what baud rate the com port needs to be at. Often, this can be changed in your monitoring software. Find out what the default for the device/software is. Then go into device manager and make sure that the properties for the com port match. If the software is running at 9600, and the port is set to 2400 for example - your going to have issues.

Also double check the flow control for the port. If its set to hardware or Xon/Xoff, set it to none and reboot.

Also - provide model and data on the UPS - we may be able to research a bit more with that info if you need further help.

Originally Posted by CaptainHaplo

ok - lets start from the beginning.

The cable - being new and provided - we can rule out being an issue. They wouldn't provide a crossover by mistake either - so lets figure the issue is elsewhere.

Couple of things that can make the com port not function as intended. Check the documentation and see what baud rate the com port needs to be at. Often, this can be changed in your monitoring software. Find out what the default for the device/software is. Then go into device manager and make sure that the properties for the com port match. If the software is running at 9600, and the port is set to 2400 for example - your going to have issues.

Also double check the flow control for the port. If its set to hardware or Xon/Xoff, set it to none and reboot.

Also - provide model and data on the UPS - we may be able to research a bit more with that info if you need further help.

I assume if I can see com1 port in device manager it means that it works ok isn't it ?

Default speed of com1 port was already set to 9600 when I opened it, nothing else was changed by me. Picture is at it's original stage. However I was not able to find anything about baud rates in motherboard manual. (My motherboard type is Nvidia Nforce3 250 - 8kda7i10)

My UPS device is: Lestar MD-625 E.

[CaptainHaplo]

I will do some research on that device.

As for it showing in the device manager - no that doesnt mean its working right - lots of things can go wrong with serial ports - but testing them means you need a good test app (which I can get you should you need it) and the ability to short pins on the port or on the cable.

I am tweaking this box with win7 at the moment - so give me a bit to research and let me see what I can find.

Originally Posted by CaptainHaplo

I will do some research on that device.

As for it showing in the device manager - no that doesnt mean its working right - lots of things can go wrong with serial ports - but testing them means you need a good test app (which I can get you should you need it) and the ability to short pins on the port or on the cable.

I am tweaking this box with win7 at the moment - so give me a bit to research and let me see what I can find.

Yes I was thinking about testing this port somehow too. Should I google for test app ? Since I don't have anything elso to connect to com1 port to see does it work at all.

[CaptainHaplo]

I can get you one - shoot me a pm with your email address and I will send it this eve, as well as some directions on how to test.

Ok you have a pm.

Originally Posted by CaptainHaplo

I can get you one - shoot me a pm with your email address and I will send it this eve, as well as some directions on how to test.

Still waiting for it

[CaptainHaplo]

Hmm - sent it yesterday morning - lemme get back in there and resend.