Transcript Electronics and readout for CEDAR

Proposal for optical and cable
network of NA62 trigger system
Marián Krivda , Cristina Lazzeroni
University of Birmingham, UK
13/7/2011
1
Content
•
•
•
•
General strategy (old)
General strategy (new)
Old layout, response from detector and new layout respecting also the new
general strategy for:
– CEDAR
– GTK
– CHANTI
– LAV
– STRAW
– RICH
– CHOD
– SAV (IRC + SAC)
– LKR
– MUV
Summary table
13/7/2011
2
General strategy (old)
• Blow optical fibre (+ 1 spare) per a rack with
FEE => use an optical splitter to fan-out optical
signal in the rack
• Keep 1 spare laser per TTCex board
• Use the optical splitter 1:4, 1:8, 1:16 as
necessary
13/7/2011
3
General strategy (new)
• Blow optical fibre – possibility to blow only 6, 12 or
24 fibres
• Use an optical splitter 1:4, 1:8, 1:16 as necessary to
fan-out optical signal in the rack where are LTUs or in
position where is FEE of sub-detector
• Keep 1 spare laser per TTCex board
• I have chosen rack numbers for TTC network for
detectors- please react if you are not happy !
13/7/2011
4
CEDAR (new)
LTU + TTCex(2 lasers) + optical splitter 1:4
2 optical fibres + 1 LVDS cable
LTU
TTCex
TTCoc 1:4
TEL62
Trig. data from L0proc
CHOKE/ERROR
Fan-in
LVDS (7)
Burst
TEL62
CHOKE/ERROR
spare
CHOKE/ERROR
TTC ch A
TTC ch B
clock
13/7/2011
40 MHz
clock
source
Rack EB20
Rack CEDAR-01
5
GTK (new)
LTU + TTCex(4 lasers) + 3 x optical splitter 1:16
6 optical fibres + 1 LVDS cable
LTU
TTCex
Trig. data from L0proc
6
TTCoc 1:16
GTK1
CHOKE/ERROR
Fan-in
LVDS (7)
Burst
GTK2
CHOKE/ERROR
CHOKE/ERROR
GTK2
TTC ch A
TTC ch B
clock
13/7/2011
40 MHz
clock
source
clock
Rack EB20
Farm room
rack S14 + rack S15 + rack S16
6
CHANTI (new)
LTU + TTCex(2 lasers)
2 optical fibres + 1 LVDS cable
LTU
TTCex
Trig. data from L0proc
CHOKE/ERROR
TEL62
LVDS (7)
Burst
CHOKE/ERROR
spare
TTC ch A
TTC ch B
clock
13/7/2011
40 MHz
clock
source
clock
Rack EB20
Rack CHANTI-01
7
LAV
TTCex
1+1 fiber
IF we keep the rack 29 configuration:
3 fiber + 3 spares
Station
Position (m)
1+1 fiber
D Positions (m)
1+1 link
LAV 1
121.953
LAV 2
129.563
7,6
LAV 3
137.173
7,6
LAV 4
144.783
7,6
LAV 5
152.393
7,6
LAV 6
165.903
13,5
LAV 7
173.413
7,5
LAV 8
180.923
7,5
LAV 9
193.184
12,3
LAV10
203.642
10,5
LAV11
218.203
14,6
13/7/2011
LAV12
238.835
20,6
1+1 fiber
1:8 splitter
1+1 link
1:8 splitter
1+1 link
1:8 splitter
8
The LAV positions (Mauro Raggi)
Station
Position (m)
D Positions (m)
LAV 1
121.953
LAV 2
129.563
7,6
LAV 3
137.173
7,6
LAV 4
144.783
7,6
LAV 5
152.393
7,6
LAV 6
165.903
13,5
LAV 7
173.413
7,5
LAV 8
180.923
7,5
LAV 9
193.184
12,3
LAV10
203.642
10,5
LAV11
218.203
14,6
LAV12
238.835
20,6
13/7/2011
In each of this position you will
find a rack with 1TEL62 with a
TTC receiver
Need in total 12 x 2 connections
assuming that each station
receive in its rack 1 fiber and 1
spare
9
LAV - Computing attenuation
LAV1
LAV2
LAV3
LAV4
LAV5
LAV6
LAV7
LAV8
LAV9
LAV10
LAV11
LAV12
122,0
129,6
137,2
144,8
152,4
165,9
173,4
180,9
193,2
203,6
218,2
238,8
7,6
7,6
7,6
7,6
13,5
7,5
7,5
12,3
10,5
14,6
20,6
d A1 Rack
22,8 m
db att.
10,7
d A5 Rack
28,5 m
db att
10,7
d A9 Rack
45,7 m
db att
10,7
I assume that the 1:8 splitters are sitting in the racks of:
ANTI-A1 one 1:8
ANTI-A5 one 1:8
ANTI-A9 one 1:8
If I understood correctly the constraints we should have a ~ 10db attenuation on
13/7/2011
10
each line
LAV - Material required
(Mauro Raggi)
•
•
•
•
One LTU+TTCex with 5 lasers
3 1:8 optical splitters +1 spare
6 optical fibers TTCex splitters
24 connections splitters-TEL62
13/7/2011
11
STRAW (new)
LTU + TTCex(2 lasers) + TTCoc 1:4 + 4x optical
splitter 1:16 + 6 optical fibers + 1 LVDS cable
LTU
TTCex
TTCoc
1:4
Trig. data from L0proc
TTCoc 1:16
6
Module
1
Fan-in
LVDS (7)
Module
2
Burst
CHOKE/ERROR
Module
3
CHOKE/ERROR
TTC ch A
TTC ch B
clock
13/7/2011
CHOKE/ERROR
40 MHz
clock
source
Module
4
clock
Rack EB20
Rack STRAW1-01 + rack STRAW2-01
Rack STRAW3-01 + rack STRAW4-01
12
RICH (new)
LTU + TTCex(2 lasers) + optical splitter 1:8
6 optical fibers + 1 LVDS cable
LTU
TTCex
CHOKE/ERROR
TTCoc 1:8
Trig. data from L0proc
TEL62
LVDS (7)
CHOKE/ERROR
Burst
TEL62
CHOKE/ERROR
spare
TTC ch A
TTC ch B
clock
13/7/2011
40 MHz
clock
source
Fanin
TEL62
TEL62
clock
Rack EB20
Rack RICH-01
13
CHOD (new)
LTU + TTCex(2 lasers)
6 optical fibers + 1 LVDS cable
LTU
TTCex
Trig. data from L0proc
CHOKE/ERROR
TEL62
LVDS (7)
Burst
CHOKE/ERROR
spare
TTC ch A
TTC ch B
clock
13/7/2011
40 MHz
clock
source
clock
Rack EB20
Rack CHOD-01
14
IRC/SAC (new)
LTU + TTCex(3 lasers)
4 optical fibers + 1 LVDS cable
LTU
TTCex
IRC
Trig. data from L0proc
CHOKE/ERROR
Fan-in
LVDS (7)
Burst
SAC
CHOKE/ERROR
CHOKE/ERROR
spare
TTC ch A
TTC ch B
clock
13/7/2011
40 MHz
clock
source
clock
Rack EB20
Rack IRC-01
15
LKR readout (new)
LTU + TTCex(2+2 lasers), 10 1x4 splitters
6 optical fibers + 1 LVDS cable
LTU
TTCex
TTCoc 1:4
CREAM Crate 1
Trig. data from L0proc
TTCoc 1:4
LVDS (7)
CREAM Crate 2
6
Burst
CREAM Crate 3
CREAM Crate 4
…..
CHOKE/ERROR
CREAM Crate
26
CREAM Crate
27
CREAM Crate
28
TTC ch A
TTC ch B
clock
13/7/2011
40 MHz
clock
source
clock
Rack EB20
CHOKE/ERROR
Rack EB01 ….EB08
Fan-in
16
LKr L0 (new)
LTU
TTCex
6
TTCoc 1:16
Crate #1
Trig. data from L0proc
LVDS (7)
TTCoc 1:16
Burst
Crate #2
TTCoc 1:16
CHOKE/ERROR
Crate #3
TTC ch A
TTC ch B
clock
13/7/2011
40 MHz
clock
source
CHOKE/ERROR
clock
Rack EB20
Rack EB09
17
MUV (Rainer Wanke)
The MUV1+2+3 will be located in one single rack in the electronic barrack with 2 to 4
TEL62 boards in total. Therefore, in principle only 2 fibers (1+1 spare) would be
needed together with 1 x 1:4 optical splitter.
However, since we would like to have the possibility to run each of MUV1, MUV2, and
MUV3 in standalone mode (they are quite different from each other), I propose to
have 3+3spare fibers for the MUV1+2+3.
I hereby assume, that it is possible to have two TEL62 boards with two different TTC
signals in one crate, is this correct?
We should also still foresee 1 TTCoc 1:4 module, since the MUV3 will most probably
use two TEL62 boards.
Bottom line: 3+3 fibers + 1 TTCoc 1:4 for the MUV
As everything is in one single rack, one spare optical fiber may be enough.
13/7/2011
18
MUV (new)
LTU + TTCex(3 lasers)
4 optical fibers + 1 LVDS cable
LTU
TTCex
Trig. data from L0proc
TTCoc 1:4
MUV
1 +2
spare
LVDS (7)
CHOKE/ERROR
Fan-in
Burst
MUV
3
spare
CHOKE/ERROR
CHOKE/ERROR
TTC ch A
TTC ch B
clock
13/7/2011
40 MHz
clock
source
clock
Rack EB20
Rack EB-30
19
MUV (comments)
• Ordered 1 LTU, 1 TTCex (1 x 10 = 10 lasers) –
• Does MUV need 10 lasers ?
• If MUV wants to run MUV1,2,3 independently
in stand-alone then it is necessary to have 3
LTUs + 3 TTCex boards
13/7/2011
20
Optical attenuation
•
•
•
•
TTCex laser has optical power in range (-3dBm,+2dBm)
Losses in optical fiber == 0.1 dB/100m
Losses on ST/PC connector == 0.5 dB
Losses in optical splitter 1:4==7dB, 1:8==10.2 dB,
1:16==12.5 dB
The maximum allowed losses are 30 dB. If it is more than
TTC receiver (TRR-1B43) doesn`t work. So, you can make
any combination of optical fibers, connectors and optical
splitters until you reach 30dB.
13/7/2011
21
Test setup of optical splitters
LTU
TTCex
TTCoc 1:4
1m ST-ST connector
TTCoc 1:16
OR
TTCoc 1:8
1m ST-ST connector
LVDS (7)
Burst
1m ST-ST connector
TTC ch A
TTC ch B
clock
1.
2.
3.
4.
5.
6.
Optical
power
meter
Output TTCex + 1m optical fiber == 0.70 dBm (measured uniformity 0.45, spec. range (-3dBm, +2dBm)
Output TTCoc 1:4 + 2 x 1m optical fibers == -6.11 dBm (measured uniformity 0.15, spec. <= 0.6)
Output TTCoc 1:8 + 2 x 1m optical fibers == -9.50 dBm (measured uniformity 0.5, spec. <= 0.8)
Output TTCoc 1:16 + 2 x 1m optical fibers == -12.60 dBm (measured uniformity 0.3, spec. <= 1.0)
Output TTCoc 1:16 + TTCoc 1:4 + 2 x 1m optical fibers == -19.16 dBm
Output TTCoc 1:8 + TTCoc 1:4 + 2 x 1m optical fibers == -16.05 dBm
13/7/2011
22
Farm room
Single mode optical fiber ST-ST connector
ST14
ST15
ST16
GTK1
GTK2
GTK3
1 for GTK
1 spare
2
Patch cord
(single mode optical fiber ST-ST connector)
LVDS cable for CHOKE/ERROR
(not jet specified)
Electronics barrack
6
EB30
EB09
EB08
EB01
MUV
1+2+3
LKr
L0
LKr
read
out
LKr
read
out
6
EB20
CLK
L0TP
LTU
TTCex
6
3
1 for CEDAR
1 for CHANTI
1 spare
1 for LAV
1 spare
6
1 for CEDAR
1 for CHANTI
4 spare
1 for LAV
(1,2,3,4,5)
5 spare
1 for STRAW 2
1 spare
6
1 for LAV (6,7,8,9)
2 for STAW (1,2)
3 spare
2
6
CED
AR
CHA
NTI
LAV
1
LAV
2
LAV
3
LAV
4
LAV
5
LAV
6
LAV
7
LAV
8
CED
AR-01
CHAN
TI-01
LAV1
-01
LAV2
-01
LAV3
-01
LAV4
-01
LAV5
-01
LAV6
-01
LAV7
-01
LAV8
-01
13/7/2011
1 for IRC
1 for CHOD
1 spare
6
1 for RICH 2
1 spare
6
1 for LAV(10,11)
2 for STRAW (3,4)
1 for RICH
2 spare
STR
AW
1
STR
AW
2
STR
AW1
-01
STR
AW2
-01
LAV
9
LAV9
-01
LAV
10
LAV10
-01
STR
AW
3
STR
AW
4
STR
AW3
-01
STR
AW4
-01
LAV
11
3
1 for LAV (12)
1 for CHOD
1 for IRC
3 spare
RIC
H
LAV11 RICH
-01
-01
LAV
12
CHO
D
LAV12 CHOD
-01
-01
IRC
IRC
-01
23
Power Distribution in TCC8
Power
distribution
For Vacuum
Power
distribution
For Racks
11 July 2011
NA62 TC Meeting, Gilles MAIRE PH/DT-DI
24
Power Distribution in ECN3
Power
distribution
For Racks
11 July 2011
Power
distribution
For Vacuum
NA62 TC Meeting, Gilles MAIRE PH/DT-DI
25
Electronic Rack Infrastructure
1/ Rack Layout in Electronics Barrack
Drawn by R. Fantechi
5 April 2011
NA62 TC Meeting, Gilles MAIRE PH/DT-DI
26
Electronic Rack Infrastructure
1/ Rack Layout in PC Farm Room
Drawn by R. Fantechi
5 April 2011
NA62 TC Meeting, Gilles MAIRE PH/DT-DI
27
Summary (NA62 setup)
Num. of
LTU
boards
Num. of
TTCex
Boards
CEDAR
1
1
2
1
-
-
O.K.
GTK
1
1
3
-
-
3
O.K.
CHANTI
1
1
10
-
-
-
O.K.
LAV
1
1
10
-
3
-
O.K.
STRAW
1
1
4
1
-
4
O.K.
RICH
1
1
10
-
1
-
O.K.
CHOD
1
1
2
-
-
-
O.K.
IRC/SAC
1
1
10
-
-
-
O.K.
LKr readout
1
1
2
10
-
-
O.K.
LKr/L0
1
1
6
-
-
3
O.K.
MUV
1
1
10
1
-
-
O.K. ?
TDAQ
1
1
4
-
-
-
O.K.
13/7/2011
Num. of Num. of Num. of Num. of Confirmed
lasers on TTCoc
TTCoc
TTCoc
by
TTCex
1:4
1:8
1:16
detector
(email)
28
LTU + TTCex order
• CEDAR: 1 LTU, 1 TTCex (1 x 2 = 2 lasers)
• GTK: 3 LTUs, 3 TTCex (3 x 3 = 9 lasers) -> NO spare laser on TTCex !
• CHANTI: 1 LTU, 1 TTCex (1 x 10 = 10 lasers) -> They need only 2 lasers !
• LAV: 2 LTUs, 2 TTCex (1x10 + 1x4 = 14 lasers)
• STRAW: 2 LTUs, 2 TTCex (2 x 4 = 8 lasers)
• RICH: 1 LTU, 1 TTCex (1 x 10 = 10 lasers) -> Do they need 10 lasers ?
• CHOD: 1 LTU, 1 TTCex (1 x 2 = 2 lasers)
• IRC/SAC: 1 LTU, 1 TTCex (1 x 10 = 10 lasers) -> Do they need 10 lasers ?
• LKR: 2 LTUs, 2 TTCex (2 x 2 = 4 lasers)
• LKR/L0: 3 LTUs, 4 TTCex (1 TTCex is spare) (4 x 6 = 24 lasers)
• MUV: 1 LTU, 1 TTCex (1 x 10 = 10 lasers) -> Do they need 10 lasers ?
• TDQ: 2 LTUs, 2 TTCex (2 x 4 = 8 lasers)
• SPARE: 1 TTCex (1 x 4 = 4 lasers)
GRAND TOTAL: 20 LTUs, 22 TTCex, 115 lasers
13/7/2011
29
TTCoc order
• CEDAR: 1 TTCoc 1:4
• GTK: 3 TTCoc 1:16
• CHANTI: --• LAV: 4 TTCoc 1:8
• STRAW: 1 TTCoc 1:4, 4 TTCoc 1:16
• RICH: 1 TTCoc 1:8
• CHOD: --• IRC/SAC: --• LKR: 10 TTCoc 1:4
• LKR/L0: 3 TTCoc 1:16
• MUV: 1 TTCoc 1:4
• TDQ: --• SPARE: --GRAND TOTAL: 13 TTCoc 1:4, 5 TTCoc 1:8, 10 TTCoc 1:16
13/7/2011
30
Optical splitter price
• 1x4 SM Splitter 19" 1U Rack Mountable type
Connector & Adpator type : ST Optical Spec :
S-grade Unit price= 120 €
• 1x8 SM Splitter 19" 1U Rack Mountable type
Connector & Adpator type : ST Optical Spec :
S-grade Unit price= 145 €
• 1x16 SM Splitter 19" 1U Rack Mountable type
Connector & Adpator type : ST Optical Spec :
S-grade Unit price= 215 €
13/7/2011
31
Summary (ordered)
Num. of
LTU
boards
Num. of
TTCex
boards
CEDAR
1
1
2
1
-
-
O.K.
GTK
3
3
3+3+3
-
-
3
O.K.
CHANTI
1
1
10
-
-
-
O.K.
LAV
2
2
10 + 4
-
3+1
-
O.K.
STRAW
2
2
4+4
1
-
4
O.K.
RICH
1
1
10
-
1
-
O.K.
CHOD
1
1
2
-
-
-
O.K.
IRC/SAC
1
1
10
-
-
-
O.K.
LKr readout
2
2
2+2
10
-
-
O.K.
LKr/L0
3
4
6+6+6+6
-
-
3
O.K.
MUV
1
1
10
1
-
-
O.K.
TDAQ
2
2
4+4
-
-
-
O.K.
SPARE
-
1
4
1
1
1
13/7/2011
Num. of Num. of Num. of Num. of Confirmed
lasers on TTCoc
TTCoc
TTCoc
by
TTCex
1:4
1:8
1:16
email
32
CEDAR (Cristina Lazzeroni)
• The CEDAR has 2 unknown at the moment : how many TEL62
we need.
If we assume they are 2 TEL62, then your proposal is fine.
The rack will be at the CEDAR place.
We will probably have 4 TEL62 but I believe your proposal is still
fine.
13/7/2011
33
GTK (Angelo Cotta Ramusino)
• the TTC links would be needed only where the off-detector GTK readout
electronics is located and that is in the electronics house, not in the pit.
The baseline design proposal was foreseeing one TTC link per GTK ASIC
and therefore:
- 10 TTC links per GTK STATION; being there 3 stations this means 30 links
total
• A different implementation is possible in which each station would receive
just one TTC fiber, convert it and distribute the TTC information locally by
an electrical network; in this case then only one TTC fiber per station
would be needed.
This second approach is trickier and so it would be prefable, at this
moment, to run the 30 fibers to the GTK off-detector electronics, unless
costs or other reasons would forbid it.
13/7/2011
34
CHIANTI (Fabio Ambrosino)
since we will use just one TEL62 the scheme looks fine for the CHANTI.
The rack name as far as I understood is CHANTI-01 in TTC8.
due to a misunderstanding, more lasers were ordered for CHANTI than
actually needed, so that 8 of them can now be used as spares for the
collaboration or for the individual groups who did not order the spares.
13/7/2011
35
STRAW (Peter Lichard)
We would like to have 1 TTCex and 1 LTU underground controlling all the detector.
We imagine TTCex having 1 laser + 1 spare laser. The distribution for 4 chambers
should be done with 1:4 optical splitter followed by 1:16 optical splitter for on-chamber modules.
We would like to have also a second set of TTex+LTU for lab and eventual spare.
From back-envelope calculation on attenuation this scheme seems to provide sufficient optical power.
TTCex -> 1:4 -> 1:16
If this proposal is OK for you, we need to have
2 x TTCex with 2 lasers
2 x LTU
1 x 1:4 splitter
4 x 1:16 splitter
13/7/2011
36
RICH (Patrizia Cenci)
Given the RICH needs, your proposal for the TTC cable network for the
RICH should have a splitter 1:8 at the place of the splitter 1:4
suggested by you, which is not sufficient for us.
We agreed to have 1 TTCex + 10 lasers for the RICH.
13/7/2011
37
CHOD (Patrizia Cenci)
as far as I know, your proposal for the NA62 CHOD TTC cable network is correct.
however the CHOD in NA62 is not a Perugia INFN responsibility.
Perugia will not be able to buy the TTC cable network proposed for the CHOD.
At present, I'm taking care of making the old NA48 CHOD working at the 2012 Techical Run, by borrowing
existing HV and TDAQ modules within the collaboration.
I hope that will also be possible in the case of the TTC cable network for the 2012 run.
This possibility will be soon investigated.
the CHOD rack will be at the LAV12/IRC place, assuming that the final detector will be kept at the present
position.
13/7/2011
38
IRC (Venelin Kozhuharov)
- The IRC/SAC system has ordered just 1 LTU and 1 TTCex with 3 lasers. Since the LTU is only one we need only 1 LVDS cable for
trigger data.
- The TTCex and the LTU for the IRC are located in the common clock crate.
- The IRC RO will be located in a rack which is close to the rack for LAV12. Most probably the SAC RO will be located in the same
rack (still not sure for that) since we aim to have common TELL62 for both detectors. Even if we use different TELL62s for the two
detector (in case of limited network bandwidth for data transfer) 2 optical fibers are sufficient from the 2 lasers of the TTCex (we
didn't choose the option to use a splitter).
- An additional optical fiber would be of use in case of failure of one of the conventional fibers. It can be from the third laser of the
TTCex. In case of two different locations of the RO then 1 additional fiber would be necessary for each of the ROs (for example
from the thirds laser). So I would say that 4 fibers are completely OK with us and might be even more than enough.
As a conclusion I think that your suggestion is fine for us.
I suppose the distance from the TTCex to the IRC rack (i.e. LAV12 rack) or the probable SAC rack (which in any case won't be
further than the end of ECN3) is not that much to require intermediate devices to recover the signal. Since we are going to
connect the optical cables directly to the TELL62 we would need attenuators at the TTCex. I suppose one for each channel
so three in total.
13/7/2011
39
LKr L0 (Riccardo Fantechi)
• For the CREAM readout we will have 28 crates with 28 TTCrx in a trigger
board. Each crate will have an internal distribution of the clock info to the
various (16/crate) CREAM boards. And all the boards will send back their
choke/error signals to the trigger board, where they will be OR-ed and
sent, from each crate, to a fan-in for the LTU.
• We had a preliminary discussion on a possible scheme and the outcome is
the following: 2 (+2 spare) fibers go to the CREAM racks (1 at left, 1 at
right) and there a 1 to 16 splitter will fan-out the signals to the 28 crates.
• This is one possible way which will require some care in laying down the)
with a 1 to fibers to the individual crates. An alternative will be 8 fibers (1
per rack4 splitter each and a better layout. Add if necessary attenuators if
needed.
13/7/2011
40
Electronic Rack Infrastructure
2/ First Proposal of Rack
Rack with Ventilator
+ Cost (~1230chf) per rack.
- Power dissipated in the cavern.
- No monitoring of rack.
- No power cut in case of fire or
overheat.
- No alarm in the fire brigade.
- The cost include the purchase of 1 LHC rack,
1 ventilator and 1 cable trays.
- Additional ventilator cost 300chf.
5 April 2011
NA62 TC Meeting, Gilles MAIRE PH/DT-DI
41
Electronic Rack Infrastructure
2/ Second Proposal of Rack (similar LHC)
Rack with LHC Rack monitoring
- Cost (~1960chf) per rack.
- Power dissipated by air water exchanger.
Need to install water circuit.
+ Monitoring of rack (temp, humidity,
turbine…) with PVSS supervision by CAN bus.
+ Possibility of power cut in case of fire or
overheat.
+ Possibility of alarm in the fire brigade.
- The cost include the purchase of 1 LHC rack, 1 rack monitoring,
1 heat exchanger, 1 deflector and 1 cable trays.
- Additional heat exchanger cost 90chf.
5 April 2011
NA62 TC Meeting, Gilles MAIRE PH/DT-DI
42
GTK racks
13/7/2011
43