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PTZ physical connection
Posted: Fri Apr 01, 2011 5:39 pm
by racelife
I've been looking around and seen lots of info on scripts to control ptz cameras but how is the physical connection made? serial port? I have a friend with a camera he will let me borrow until I can afford one the specs are:
Communication system
RS485 bus control
Communication Protocol
Pelco-D / Pelco-P (optional)
Baud Rate
1200/2400/4800/9600/19200bps (adjustable)
Re: PTZ physical connection
Posted: Sat Apr 02, 2011 9:46 pm
by clipo
You have already listed how it is connected in your description,
RS485
Google is your friend....
http://en.wikipedia.org/wiki/EIA-485
Re: PTZ physical connection
Posted: Mon Apr 04, 2011 10:01 pm
by racelife
is there an RS485 connection on most motherboards? or is it rs485 protocol on a serial port? or will I use a usb to rs485 adapter?
Re: PTZ physical connection
Posted: Tue Apr 05, 2011 12:42 pm
by clipo
Only some industrial PCs have RS485 on the motherboard, 99% of other computers require an expansion card to have it and I've never seen a USB to RS485 converter but that's not to say one dose not exist.
Once again Google is your friend
http://www.ebuyer.com/product/224157?ut ... m=products
Re: PTZ physical connection
Posted: Tue Apr 05, 2011 3:51 pm
by racelife
I found the most economical solution is a rs232 to rs485 adapter to convert the serial port to rs485.