Cascading GPIB BUS Extenders

[Bill Sarsfield]

We have a system that has NI GPIB 110-1 Bus Extenders in it. Can I add NI GPIB 140-A Bus Extenders additionally to that GPIB Bus. In other words, the GPIB initiates at a Series/1 computer and goes into a 110-1 BUS extender, it then comes out the other 110-1 extender and connects to some RF equipment. Can I put another BUS extender (a 140-a) between the outputing 110-1 and one piece of RF equipment. The resulting BUS would initiate at the Series/1, go into a 110-1 extender, come out the other 110-1 extender and plug into some RF equipment as well as a 140-a extender, the other 140-a would plug into the last piece of RF equipment. Is that OK, is there a reason not to cascade GPIB Bus Extenders?
Thanks
-Bill Sarsfield

[MattBradley]

Bill,

I'm not sure if you can or not. I do, however, have a suggestion (especially if the extenders do not work). Use a LAN-GPIB converter. I've used them to control instruments very far from the controller and in fact you can use them through the internet.

Hope this helps.

[Carlos L]

Bill,

You posted this question in the TestStand Discussion Forum. I would recommend to post it again at the Instrument Connectivity or GPIB Discussion Forums. You'll definitely have more chances to get answers to your question.
Here's a link to the "Discussion Forums":
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=0&Hanonymous=1&RSESSION=101_5355:19c3b0f3931c0a9f14a5f38f:1022680460042

From there, click either on "Instrument Connectivity" or "GPIB" (which is under "Instrument Connectivity").

Regards,

Carlos Leon