Extra com port

[cam2 0]

Anyone used a usb/com port lead with any success?

 

I need an extra com port to connect a gv-io external box.

[rory 0]

we use them in the Alarm Central Station, a USB Serial Port Box, they work.

[cam2 0]

How much are they Rory?

 

These any good?

 

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=5850126858&rd=1&sspagename=STRK%3AMEWA%3AIT&rd=1

[rory 0]

Well the one we used is a box of Serial Ports, i think it was 6 or 8 ports, and wasnt cheap ... you have to set up the software also ..

[Securitymaster 0]

Can't comment if is good or not, but I can say that for 5 pounds, might as well try it and let us know

[cam2 0]

Thought one of you might have tried it

 

Cant go wrong for £5.

 

 

I emailed the seller and he says it gives you a "virtual" com port!WTF.

 

GV hub gives 4 but $$

 

 

Is there a pci card that gives a rs232 port ?

[rory 0]

you can buy them from any PC store, even down here in the tird world ..

PCI card, Box, or Cable ..

 

Rory

[Thomas 0]

Yep, Star-Tec makes some serial (DB-9) port PCI cards and they make RS-485 port PCI cards.

[cam2 0]

Tanks guys, found em now

 

Just a crazy thought, would a printer port work as a rs232 com port with a converter plug in?

[Thomas 0]

http://froogle.google.com/froogle_cluster?q=serial+to+parallel+port+converter&pid=4864865321103415749&oid=10938974927797324538&btnG=Search+Froogle&oi=froogler&lmode=&addr=&scoring=p&hl=en

[rory 0]

depends, if the Printer has a USB cable then just use that ..?

[cam2 0]

Tom, expensive

 

Rory, its not for a printer , its to see if i can connect it to a printer (parallel) port to com port , then to ptz convertor.

[rory 0]

ok, what he posted then

[Thomas 0]

You asked if it existed. You didn't ask if it was reasonable. Now the fun part. How from a software connection are you going to make it look like a com port? Mostly these are used if I want to see the serial port output.

[cam2 0]

Tom,

i see its value now. it converts the parallel port into an rs232 and vice versa.

 

I think?

[Thomas 0]

Yep.

[cam2 0]

Thanks Tom.

 

I had a (targus) usb port replictor lying around , it has a com port on it.

 

I tried it but it wont communicate with the ptz control, it mentions in the instructions it may not communicate with all devices via the com port through usb, guess i'm unlucky.

 

Thanks for the heads up on the convertor.

[jeromephone 6]

I have used the usb to serial adaptors (around $20.00 with software) they work fine. The only problem I had was remembering that mine defaulted to com 4.

[cam2 0]

I also tied a twin pci serial port card, installed fine and listed in device manager as com 3 &4, wont communicate with Geovision for some reason,

even when i change com port settings in geo setup?

 

 

I havn't got anything else that connects to serial to test it, plug geo back in to com 1 and it works

[rory 0]

you want to get yourself an old serial mouse to test with ..