Re: The Time distribution system [message #1444 is a reply to message #1442] |
Sun, 06 March 2005 15:31 |
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Igor Konorov wrote on Fri, 04 March 2005 19:07 | ... The Alice DCS card includes the TTC receiver and I believe if the TTC provided bidirectional interface it would be used instead of Ethernet.
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I doubt that, but the DCS designers better speculate on this.
The key point of the DSC approach in ALICE is to have a CPU with an OS on the board, providing connectivity through TCP/IP and an environment to use a wide variety of tools building on this API.
Even though conceivable, it will probably requires a substantial effort to emulate a normal TCP/IP connection behaviour between the PC's running the control tasks and each endnode through the time distribution network.
I think the ability to have a bi-direction data channel on the time distribution network is of limited value without local inteligence (that is CPU and OS) and a standard communication API (that is TCP/IP) at the endnode.
W.F.J.Müller, GSI, CBM, Tel: 2766
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