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This topic comprises 2 pages: 1 2
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Author
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Topic: Serial Port on DSS100
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Carsten Kurz
Film God
Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009
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posted 10-26-2016 07:35 AM
A DSS serial port has to be activated in auditorium properties. You should check it, but I doubt it would deactivate there by itself.
USB-Serial converters can be bought from 5US$ up. They can be problematic with certain old software applications, but are usually good enough to catch a few strings from a DSS100 into a standard terminal program. Which is what I would try first - check if the DSS100 outputs anything. Then go to the eCNA.
The Keyspan USB-RS232 converters, while a bit pricey, are the best. But for this application, any cheap one will do. You may need to get a nullmodem/crossed RS232 cable or converter as well.
The eCNA may need proper RS232 signal levels, which cheap USB-RS232 often don't source. Steve may know about that. So when you try to send something to the eCNA through a USB-Serial, make sure you don't fail on that part. Receiving from the DSS100, however, doesn't suffer from that issue.
WIN7 doesn't come with Hyperterminal anymore, but you can copy it from an XP machine or download other simple terminal software. Like SerialTalk from the film-tech warehouse.
http://www.film-tech.com/warehouse/wareview.php?id=1897&category=2
Installing a USB-Serial in WIN7 or WIN8 can be a bit painful as well due to driver signing issues, but you can find procedures on the Net or in the devices documentation.
If you can't dig up an old XP notebook with a serial port (DELLs can be found for very little money), you should make yourself familiar with a USB-Serial. Especially if you have RS232 aware devices to service from time to time.
Never trash an XP notebook with a serial port - you will regret it.
I don't know what you need that Sierra USB Wireless hotspot unit for, but both the WIN7 notebook and the WIN8 notebook most certainly have their own internal WIFI hardware? Or is this Sierra Unit a 3G or other local wireless broadband access-USB-Stick and there's no Wifi on site?
- Carsten
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Stephen Furley
Film God
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Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 10-27-2016 10:32 AM
I have a couple of Axis USB to serial converters, which seem to work better than some copies which I've seen. The copies usually seem to be blue, while the Axis ones are a sort of dirty yellowish grey colour.
I don't use them as much as I used to as I now have some Ethernet to RS-232/422/485 converters which I tend to use instead. Main advantages, you can easily connect as many as you want to one computer, can be as far away as you want, not limited to the 5m or so with USB.
They can work in several different modes, you can telnet to them, and they then talk serial to the remote device, or you can talk serial to them, and they will then telnet to a remote device with an IP address which has been programmed into them, or if the PC is a windows one then a device driver can be installed which will cause the converter to appear to be a local COM port on the PC, even if it's on the other side of the world, and any software designed to work with a local COM port should work with them, as long as it's not old DOS software talking directly to hardware. I bought mine from Amazon, and have had no problems with them.
I have used RS-485 in a previous job, but do not use it now. Because the converter can be a long way away, with serial used for just the last few metres, RS-422 isn't needed as much as it used to be; most things can use 232.
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Carsten Kurz
Film God
Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009
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posted 11-18-2016 05:49 AM
Oh, yes, using these converters within virtual environments can be tricky. In general, there are two ways how they can be used:
- The host system installs drivers and creates a COM-Port within the Host OS. This port has to be forwarded to the virtualized OS as a serial Port. It's a special function of the virtualization engine. It has to know about serial ports.
- The host OS is prevented to install/use the device with it's own driver, instead, it is passed into the virtual OS as a USB device, so the virtualized OS sees it as a USB device and installs it's own USB-Serial drivers. That's a bit tricky, as usually the host system will install a driver upon insertion of the USB device automatically, that has to be blocked later when the USB passthrough is used.
Some virtualizing systems allow to use both options, at least for serial ports.
Then there may be issues with the device being USB 1.1, USB2.0, or USB3.0. It's not important for the speed/baud rates (even 1.1 will support all necessary serial rates), but some virtualizing systems do not support passthrough of UB2.0 or USB3.0 devices.
So, have fun with that ;-)
- Carsten
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Steve Guttag
We forgot the crackers Gromit!!!
![](http://www.film-tech.com/ubbmembers/268e.gif)
Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
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posted 11-18-2016 09:49 AM
RESPONSE FORMAT: Option 1 String format: !Ffmpxx(CR) - 8 characters (Options-A DIP switch 6 = OFF) Where: ! = Start character F = Second start character f = Current format. Possible values are M = Mono, A = Stereo, S = Stereo SR, D = Dig 1, T = Dig 2, G = Dig3/Mag, 1 = NS1, 2 = NS2, 3 = Mic, V = AV m = Current Mute status. Possible values are U = Mute active, X = Mute inactive p = Current Projector status. Possible values are 1 = Projector 1, 2 = Projector 2 xx = Current volume, (two ascii characters) Values will be 00 to 99 CR = Carriage return character
If you put Option-A dip switch 6 on, you'll get the original command set.
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