wooderson9

I have two Bosch Desa XL 16 port boxes. We have three Bosch Envirodome PTZ cameras running off of one of the Desa's. I initially tested them in the lab using biphase for control. I noticed that the camera would occasionally spin out of control for several minutes and the light on our Bosch 8786 RS232 - Biphase converter was blinking rapidly like it was receiving signal from the Desa. I rebooted the Desa in order to stop the camera from spinning. This spinning camera would only happen when using the Remote View software that Bosch offers. Controlling the camera locally on the Desa works great. At the site, the cameras are in position. Again I notice the spinning every once in a while. Bosch has said they have never heard of this before of course. I get rid of the biphase converter and use an RS232 - RS485 converter. I don't notice any spinning until I am showing the customer how to operate it and it starts spinning out of control again. Any ideas? We are forced to use this crappy remote view software due to the physical location of the buildings involved. There is an existing data network running over a fiber backbone but there aren't any additional pairs in order to centralize all the Desa's. So I guess I have two questions: Is there any way to fix the out of control spinning? I currently have the termination resistor in place and the run is approximately 200'. Has anyone been forced to use this remote view software for a 24/7 monitoring environment for 100+ cameras? Thanks!!!

Just wanted to post an update... We eliminated this problem by not using the remote view software supplied by Bosch for the Desa. The latency of the network only made the spinning problem worse. We ended up using the GE S735DV units to control the PTZ cameras over some fiber that was available. It works flawlessly now. The Desa is centrally located with the other computers that use the remote view software for the fixed cameras. Thanks for everyone's info and help.

My two cents... I just installed wild blue satellite (wildblue.com) at my house in the boonies. I don't have any cameras I am trying to view remotely at this point but I thought I would share my connection speeds. I am using their package that offers 1.0Mbps down and 200Kbps up. I ran a speed test on DSL reports and got 970Kbps down and 175Kbps up. You do notice a little latency (500ms) when doing ping tests and surfing. Overall though, I have been quite impressed. They have a lower intitial cost than Direcway and their support was fairly good. The do have a faster package available also. I'm sure a static IP is available too.

Thanks for the advice. I will look into the position sensor issue. Yes, this is happening with 485 as well. All three cameras are running off a single bus with the last camera terminated. The fiber is not being used for any carrying of video at this point. It is only used for the remote view. I will find out how many strands are available this week. It is multi-mode I believe. We are discussing running some kind of analog to ip encoder/decoder to get the signal back to a centrally located Desa rather that use the remote software. Eliminating the remote view software should hopefully help with this issue as well as improving PTZ response time.