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How to interface SADC to Time distribution [message #307]

Tue, 13 April 2004 19:23

Walter F.J. Müller
Messages: 229
Registered: December 2003
Location: GSI, CBM

first-grade participant

When I look at the presentation about

I wonder what additional glue logic is needed to interface a TCS like time distribution with the SADC module. Or in other words:

Is the SADC clock input compatible with TCS or its anticipated successors fibre protocol ?

W.F.J.Müller, GSI, CBM, Tel: 2766

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Re: How to interface SADC to Time distribution [message #329 is a reply to message #307]

Mon, 19 April 2004 15:54

Lars Schmitt
Messages: 47
Registered: April 2004
Location: GSI

continuous participant

The SADC is interfaced to the TCS via the multiplexer board.
This incorporates an optical TCS receiver decoding clock, reset
and (depending on the application) trigger signals. The SADC
as such is not a standalone module. It is always programmed and
read out via the multiplexer card, to which up to 8 SADC are
attached. The MUX can also be cascaded to multiplex 8 other
MUXes. It distributes the clock signals etc. via optical connections
and the Hotlink protocol like a fanout to the
attached SADCs (or MUXes).

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Re: How to interface SADC to Time distribution [message #402 is a reply to message #307]

Fri, 30 April 2004 16:48

Igor Konorov
Messages: 7
Registered: April 2004
Location: TU Muenchen

occasional visitor

From: *e18.physik.tu-muenchen.de

Dear Walter,
the SADC as any other FE module has 3 logical interfaces:
- for time ditribution
- for configuration , monitoring
- for data.

We developed a special module GESICA which provides an interface between TCS , DAQ and SADC. It's kind of concentrator module which supports up to 8 SADC modules(see L.Schmitt mail).
The SADC is connected to the GESICA via duplex fibre and we run a custom protocol over this fibre which provides all 3 type of interfaces.
The SADC clock is derived from TCS clock in this way the time of each sample is well known.

Regards. Igor.

Igor Konorov
Technical University of Munich
Physic Department E18
mail: igor.konorov@ph.tum.de
tel: +49-89-28912574
Fax: +49-89-28912570

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