Fan Trays Numbering Scheme

The fan trays of each rack row form a single CAN chain. The CAN Node ID of the fan trays is as follows

<0|1><rack-number> (demical)


0|10 + <rack-number>

Assuming the node ID is a demical number, the first digit is either 0 or 1, namely 0 or 10. (Because the LCD panel in wiener use demical digit)

0(0) for a crate in the top position

1(10) for a crate in the bottom position

The second digit is the number of rack


The fan trays in D3E03 (VELO) would have

3 (top crate)

13 (bottom crate)

as CAN Node ids

-- KaikuoZHUO - 21 Mar 2007

This topic: LHCb > WebHome > LHCbOnline > ECSSetting > ECSWiener
Topic revision: r2 - 2007-03-26 - KaikuoZHUO
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