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PMD Layout
Unit Module
Super ModuleConverter + Support Plate
Total channels
Preshower+Veto
= 221,184
8 Supermodules
in 2 planes
48 Nos. Total
Unit module componentsHoneycomb (4608 cells)
Top, bottom PCBs
PMD DCSSMI Control Unit
SMI Device Unit
Hardware Device
Being done by CERN GWG
GASHV LV
PMDDCS
Tmon Crate Ctrl
HV System
HV
CAENSY1527
From LVPS
SMI Control Unit
SMI Device Unit
Hardware Device
PREVETO
HVPS
UM24 48
UM 0 23
LV SYSTEM
LV
LVPS
+2.5 +3.3 -2.5
CROCUS6
CAENEASY
CAEN48V
CROCUSCROCUSCROCUSCROCUSCROCUS1
+3.3V +3.3V
+3.3V+3.3V
To SY1527
SMI Control Unit
SMI Device Unit
Hardware Device
PRE VETO
UM24UM24 48
UM24UM 0 23
TmonTmon
ELMB2 ELMB1
ELMB Status
SMI Control Unit
SMI Device Unit
Hardware Device
Crocus UM 0
UM 48
OFF
CONFIGURING
CONFIGURED
STANDBY
PEDESTAL
ON
RAMP_UP_LO RAMP_DOWN_LO
RAMP_UP_HIGHRAMP_DOWN_HIGH
RAMP_UP_FULL
RAMP_DOWN_FULL
GO_STANDBYGO_PEDESTAL
GO_ONGO_OFFRESET
GO_CONFIGUREDRESET
GO_STANDBYGO_PEDESTAL
GO_CONFIGURED_OFFRESET
PMDDCS
SMI Control Unit
SMI Device Unit
Hardware Device
PREVETO
HVPS
UM24 48
UM 0 23
LVPS
Tmon
2.5 -2.5HV
3.3
Detector oriented hierarchy
CrateCtrl
Next SLIDE
• A proposed detector oriented hierarchy
• For PMD
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