== Input Mode Cleaner Hardware ==
=== Location of the servo components ===
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2968|Drawing]]
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3018|Cable rack drawing]]
Green lines represent cabling.
MC REFL optical table: PD, QPD<
> Around MCi, MCe chambers: !OpLev <
> MC rack: I-Q demodulators, MC board, MC RTS computer, Coil drivers, Picomotor Drivers<
> Laser room: TTFSS box, AOM
Questions<
> Where to put TTFSS ? Do we need a rack inside the laser room ?
=== Demodulator ===
Assigned to Aso
Use 4ch I-Q demodulators for the moment. [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2413|JGW-D1402413]]
Necessary channels: 1ch for Length PD, 8ch for WFS QPDs.
|| ||Qty ||Interface ||Size ||Location ||Description ||
||4ch I-Q demod ||3 ||SMA, BNC(monitor) ||1U ||MC rack || ||
||Coax. cables ||9 ||BNC->SMA ||10m? || || ||
||Power cables ||3 || ||1m || || ||
=== MC board ===
Assigned to Michimura and Nakano
* LIGOの回路図を見て,機能ブロック図を描く
→ [[https://dcc.ligo.org/LIGO-D1002416/public|LIGO-D1002416-v5]](pole/zeroの位置は適宜調整されている可能性あり。参考: [[https://dcc.ligo.org/LIGO-D040180/public|LIGO-D040180]](回路図)、[[https://dcc.ligo.org/LIGO-E1200177/public|LIGO-E1200177]](LIGOでの変更履歴))
* KAGRAで必要な修正点はあるか?
→ なさそう(pole/zeroの位置は適宜修正必要)。
* AOMとの接続は単なるBNCケーブル?
→ SMBとSMCは必要(参照: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=2941|JGW-T1402941]])。
=== Interface between MC board and RTS ===
Assigned to Michimura and Nakano
* Cabling: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=2984|JGW-D1402984]] (MC board related [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=2941|JGW-T1402941]], TTFSS related [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2963|JGW-G1402963]])
* Cable length estimation: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=3028|JGW-D1403028]], [[http://gwclio.icrr.u-tokyo.ac.jp/lcgtsubgroup/inoutoptics/2014/11/post-27.html|IOO blog on Nov 28, 2014]]
* Updated cable list is on [[https://docs.google.com/spreadsheets/d/1VPkv64gDrbhSX4LiO5aNc-miSf3h3pl1dRQPKUhnuCs/|Google spreadsheet]].
* List is for whole iKAGRA PSL+IMC. Electronics are listed at [[KAGRA/Subgroups/MIF/AEL]] page.
* [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/AEL/meeting/20141215|Purchased cables by Miyakawa (2014/12/15)]]
|| ||Qty ||Interface ||Size ||Location ||Description ||
||RF splitter ||1 ||BNC/SMA ||- ||PSL ||8 if there's no distributor ||
||Coax. cable ||11 ||BNC/SMA ||2m ||PSL || ||
||Coax. cable ||6 ||BNC/SMA ||18m ||PSL to IO rack || ||
||Coax. cable ||9 ||BNC/SMA ||5m ||IMC REFL to IO rack || ||
||Coax. cable ||8 ||BNC/SMA ||2m ||IO rack || ||
||Ribbon cable ||1 ||Dsub 37pin ||0.1m ||PSL ||TTFSS Interface to TTFSS ||
||Ribbon cable ||2 ||Dsub 25pin ||18m ||PSL to IO rack ||TTFSS Interface and PMC Servo Board(?) ||
||Ribbon cable ||2 ||Dsub 15pin ||18m ||PSL to IO rack ||for QPDs IP_A/B ||
||Ribbon cable ||2 ||Dsub 15pin ||8m ||IMC REFL to IO rack ||for QPDs IMCR_A/B ||
||Ribbon cable ||2 ||Dsub 15pin ||45m ||IMC TRANS to IO rack ||for QPDs IMCT_A/B ||
||Ribbon cable ||3 ||Dsub 9pin ||18m ||PSL to IO rack ||for PDs PMCR, PMCT, FRCT ||
||Ribbon cable ||1 ||Dsub 9pin ||8m ||IMC REFL to IO rack ||for PD IMCR ||
||Ribbon cable ||1 ||Dsub 9pin ||45m ||IMC TRANS to IO rack ||for PD IMCT ||
||Power cable ||4 ||3pin tap ||18m ||from PSL to IO rack ||for TTFSS Interface and PMC Servo Board(?) ||
||Power cable ||14 ||3pin tap ||2m ||IO rack || ||
||AC cable ||7 || ||2m ||PSL, IO rack || ||
||AC extension cable ||1 || ||18m ||from PSL to IO rack || ||
=== Interface between RTS and MC suspensions ===
Assigned to Ohishi, Saito, Miyakawa
ToCoilDriver
||Type ||Number ||Length ||
||RTS - Coil Driver(LEMO) ||9 =(length, pitch, yaw)×3MCSs ||?m×6(MCI, MCO), ?m×3(MCE) ||
||Coil Driver - Feed through(BNC) ||12 (=4coils×3MCSs) ||? a few m ||
||Feed through - Coil(BNC) ||12 (=4coils×3MCSs) ||3m ||
ToPicoMotor
||RTS-Picomotor Driver(LAN cable) ||6 ||?m ||
||Picomotor Driver(LAN port) - Feed through(Burndy) ||? ||?m ||
||Feed through - MCSs(Burndy) ||3 ||3m ||
Reference
1. http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DGS/Projects/PicoMotor
2. http://gwclio.icrr.u-tokyo.ac.jp/lcgtsubgroup/vibrationisolation/2014/10/picomotor-controls-by-epics-at-payload-prototype-test.html
3. http://gwclio.icrr.u-tokyo.ac.jp/lcgtsubgroup/digitalsystem/2012/03/new-focus-picomotor-controlled-at-stda.html
=== Interface between oplev and RTS ===
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=3017|JGW-D1403017]]
* Electronics and cables needed for IMC mirror oplevs are listed
|| ||Qty ||Interface ||Size ||Location ||Description ||
||SLD ||3 || || ||pylons ||needs +15 ~ +24VDC ||
||conversion connector ||3 ||3pin tap -> SLD connector || ||pylons ||for converting DC power cable to a connector for SLD module ||
||Oplev QPD ||3 ||Dsub 15pin || ||pylons || ||
||Oplev QPD Interface ||2 ||Dsub 15pin || ||MC rack ||1 Interface for 2 QPDs ||
||Ribbon cable ||2 ||Dsub 15pin ||12m ||MCF to MC rack ||for QPDs ||
||Ribbon cable ||1 ||Dsub 15pin ||40m ||MCE to MC rack ||for QPDs ||
||Power cable ||2 ||3pin tap ||12m ||MCF to MC rack ||for SLD ||
||Power cable ||1 ||3pin tap ||40m ||MCE to MC rack ||for SLD ||
||Power cable ||3 ||3pin tap ||2m ||MC rack ||for Oplev QPD Interface ||