1. ESR for the muon DT Minicrate System
System Overview
ESR for the muon DT Minicrate System
CERN. November 3rd 2003.

2. MINICRATE Trigger SC 2 ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
MINICRATE
Trigger SC

3. READ-OUT TRIGGER ROB (Read-Out Board)3
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
READ-OUT
ROB (Read-Out Board)
• Performs the time digitalisation of the incoming signals from the front-end electronics.
• 128 channels, 4 HPTDC per board.
TRIGGER
TRB (Trigger server boards)
• Select the two best muon candidates in each board.
• 128 channels, 32 BTI´s per board, 4 TRACO per board.
SB (Server boards)
• Selects two best muon candidates in the chamber.

4. RESPONSABILITIES - Read-Out (ROB´s) & RO-link:................CIEMAT4
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
RESPONSABILITIES
- Read-Out (ROB´s) & RO-link: CIEMAT
- Trigger Boards (TR) , CCB & CCB-link:....INFN Padova
- Server Boards (SB) & TR link: INFN Bologna
- Mechanics: CIEMAT & All

5. LOCATION IN THE DETECTOR5
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
LOCATION IN THE DETECTOR
Electronics attached to chambers:
Drastical minimisation of cables.

6. MINICRATE LAYOUT 6 ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
MINICRATE LAYOUT

7. MC TO CHAMBER CONNECTION7
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
MC TO CHAMBER CONNECTION
SLΦ1
SLΘ
ROB Φ
ROB Φ
ROB Φ
ROB Φ
ROB Θ
ROB Θ
SLΦ2
Nº of channels/board tries to find a compromise between high granularity (multiplication of common components) and low granularity (increase the number of unused channels).

8. DISTRIBUTION ON THE DETECTOR8
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
DISTRIBUTION ON THE DETECTOR
Left and right minicrates depending on the service layout on each wheel inside the iron yoke.

9. CABLES OUTGOING FROM A MINICRATE9
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
CABLES OUTGOING FROM A MINICRATE

10. MINICRATE ASSEMBLY SEQUENCE10
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
MINICRATE ASSEMBLY SEQUENCE
Pictures

11. Refrigeration by 15ºC water circulation.11
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
WATER COOLING SYSTEM
Refrigeration by 15ºC water circulation.

12. MC LINKS CCB link ROB link TTC optical connection RPC alignment12
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
MC LINKS
CCB link
TTC optical connection
RPC alignment
ROB link
RJ-45 copper link

13. MC PROTOTYPING We have produced:13
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
MC PROTOTYPING
We have produced:
• 2 MB1 prototypes: Padova: Trigger part assembled and operated in May 03 test beam.
Madrid
• 1 MB2 at ISR: for testing insertion on chamber.
• 1 MB3 in Legnaro: waiting to be equipped with TRB´s.
• 1 MB1 definitive (left) in Madrid.

14. 3.3 V Digital 5.0 V Digital MC POWER SUPPLY14
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
MC POWER SUPPLY
AVERAGE MINICRATE POWER CONSUMPTION: Watts
3.3 V Digital
The voltage at chamber input is nominally 4 V (as it is followed by low drop regulators).
The current at the load can be any value between 0 and 35 A.
PS must be designed to provide at least 20% more current than maximum nominally required: 42 A.
The voltage at the Load is nominally 6 V, as it is followed by one low drop regulator.
The current at the Load will be any value between 0 and 1.5 A.
PS must be designed to provide at least 20% more current than maximum nominally required: 1.8 A
5.0 V Digital

15. TRB’s & ROB’s 3.3V Low drop regulator CCB 5V Low drop regulator15
ESR / MUON DT MINICRATE SYSTEM. Overview.
November 3rd , 2003
MC POWER SUPPLY
Independent systems per wheel.
3.3V digital
TRB’s & ROB’s 3.3V Low drop regulator
on each board 4V
6 V
5 V digital
CCB 5V Low drop regulator 6V
8 V
TOWERS
MINICRATE
5 EASY MODULES A3003
25 EASY MODULE A3050
~1 m
10-20 m cable