LV controls and back plane connections

This is the front viev of the MVD LV crate:

postscript


The connectors on the back are NOT in the same order as the lights on the front.
The red lines and numbers refer to the 24V control lines:


ps, Steve's pdf 		     
ps, pdf 		     
ps, pdf

With this, the view from the back is as follows. In black the voltages.
The red numbers in parentheses refer to the 24V control lines.


ps

On Steve's header board, where the ribbons come up from the LV crate to screw terminals, there are blocks of connections corresponding to our 6 modules. For each module, there are 6 possible enable lines (corresponding to max 6 bricks per module), then 6 DC status return lines an 2 temperature monitoring points. lv_block.ps

slot function name ganged switch Adam bit
1 (AB) MB1 +-5 analog ENC1 MVD East (1) 0
MB2 +-5 analog ENC4 MVD West (2) 1
2 (AB) MB3 +-5 analog ENC1 MVD East (3) 2
MB4 +-5 analog ENC4 MVD West (4) 3
3 (CD) 9U +5 ENC1 - (5) 4
MB1 +5 digital ENC3 MVD East (6) 5
MB2 +5 digital ENC6 MVD West (7) 6
4 (CD) 9U +5 ENC1 - (8) 7
MB3 +5 digital ENC3 MVD East (9) 8
MB4 +5 digital ENC6 MVD West (10) 9
5 (U) MB1->4 +5 ENC1 - (11) 10
6U +5 ENC3 - (12) 11
6U +-12 ENC5 - (12) 12
6 (E) TIM +-12 ENC1 - - 13
TIM +-12 ENC4 - - (13)



Here is how the power to the mother boards is hooked up.
To make it less confusing, it is shown separately for each of the MB's:

ps
ps

ps
ps

Last update 8 Aug 2001 - HvH
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