How do i build a port selector? - Electronic Circuits Projects Diagrams Free

danieljm · 2nd June 2003, 01:47 AM

i only have to com ports on my computer, and the problem i
have is that i have 6 devices that use a com port. i know you can
buy these things, but i'd like to have a go at building one myself

**kinjalgp** · 2nd June 2003, 05:21 AM

You can multiplex you ports using switches or microcontroller but using this technique if you want all your devices to be operated at same time then its not possible. It can operate any two devices at a time. This is going to be a big-messy job.

The easier solution would be to buy a PCI based COM PORT Card having 4 Com Ports. Wiht this you'll have 6-ports for all your devices and they'll work simultaneously.

danieljm · 2nd June 2003, 10:58 AM

i only want to use one at a time, any chance of a diagram
i new to electronics...

**kinjalgp** · 2nd June 2003, 01:41 PM

Here I found something useful. Check it out.
http://www.netadmintools.com/art40.html

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2nd June 2003, 01:47 AM	(permalink)
danieljm	How do i build a port selector? i only have to com ports on my computer, and the problem i have is that i have 6 devices that use a com port. i know you can buy these things, but i'd like to have a go at building one myself

2nd June 2003, 05:21 AM	(permalink)
kinjalgp	You can multiplex you ports using switches or microcontroller but using this technique if you want all your devices to be operated at same time then its not possible. It can operate any two devices at a time. This is going to be a big-messy job. The easier solution would be to buy a PCI based COM PORT Card having 4 Com Ports. Wiht this you'll have 6-ports for all your devices and they'll work simultaneously. __________________ "There is no way to peace, peace is the way!"

2nd June 2003, 10:58 AM	(permalink)
danieljm	i only want to use one at a time, any chance of a diagram i new to electronics...

2nd June 2003, 01:41 PM	(permalink)
kinjalgp	Here I found something useful. Check it out. http://www.netadmintools.com/art40.html __________________ "There is no way to peace, peace is the way!"