Polycom communication very slow AND USB-TO-RS232 device.
Ad_My_Xperience
Posts: 73
Hi guys!
I control Polycom HDX-8000 system with my own code. I know, I'm an idiot!
It's working very well and I can control my feedback perfectly.
My problem is the slow response from the device.
For example, I have a key pad to dial phone numbers or IP adresses. If I use the Polycom remote and I press very fast on the key pad, numbers appear very fast to Polycom Make a Call Screen. If I press numbers very fast on the TP, numbers appear one by one very slow on the Polycom screen.
It's the same thing for all commands. I have bouttons to move camera. On PUSH event, I send 'move cam direction' command and on RELEASE event, I send 'stop camera' command. When I push boutton, starts moving after 0.5 sec. and when I release the button, camera continues moving during 1 sec.
I have tried to change communication speed and nothing changes.
Also, I try to find a good USB to RS-232 device because I bought 2 on eBay and they don't work. I'm with Win XP and soon Win 7.
Thanks a lot!
Mike
I control Polycom HDX-8000 system with my own code. I know, I'm an idiot!
It's working very well and I can control my feedback perfectly.
My problem is the slow response from the device.
For example, I have a key pad to dial phone numbers or IP adresses. If I use the Polycom remote and I press very fast on the key pad, numbers appear very fast to Polycom Make a Call Screen. If I press numbers very fast on the TP, numbers appear one by one very slow on the Polycom screen.
It's the same thing for all commands. I have bouttons to move camera. On PUSH event, I send 'move cam direction' command and on RELEASE event, I send 'stop camera' command. When I push boutton, starts moving after 0.5 sec. and when I release the button, camera continues moving during 1 sec.
I have tried to change communication speed and nothing changes.
Also, I try to find a good USB to RS-232 device because I bought 2 on eBay and they don't work. I'm with Win XP and soon Win 7.
Thanks a lot!
Mike
0
Comments
USB to serial, if you want an AWESOME AMAZING one, check out the MOXA U-PORT 1110. USB to 232 / 422 / 485, i've never had something that I can't talk to with this one. However, its a little pricey, if you want a more generic model, Cables to go has one, the 26886 which i have used on everything from Satellite Boxes to my laptop.
Polycom. I too once was crazy and wrote my own module for Polycom, and yes I had some unexpected results. I do know that Polycom firmware often plays games with the serial responses, so I would start there, but ensuring that the Polycom has the latest firmware. Then I would try rolling back say 2 revisions and see if that makes a difference. If i remember rightly they do post pretty good notes about what they have changed. If that doesn't help, I would try retarding the characters slightly, maybe your blowing past the serial buffer in the device. I found this recently with another 232 device, if i retarted the characters 100ms each ( use the CHARD-1 command ), it started working like a charm.
Sorry that I can't give you a certain answer.
'camera near move up'. The camera commands work fine. Well, the other day we had an installation where they didn't work so hot, but it turns out that the guys with the screwdrivers and soldering irons didn't wire the cameras to the codecs properly and then the cameras would move slowly, respond slowly, not move at all, keep moving after a stop command, etc. It's my impression that the Polycom cameras require more than the typical three wire RS232 hookup -- it's not actually RS232. Once the wiring was straightened out, everything was OK, so you might check that out.
For entering numbers, we always use the button commands and they seem to work fine though I've never checked to see if the response is as fast as with the hand held remote.