Input Mode Cleaner Hardware

Location of the servo components

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. 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-D1002416-v5(pole/zeroの位置は適宜調整されている可能性あり。参考: LIGO-D040180(回路図)、LIGO-E1200177(LIGOでの変更履歴))

→ なさそう。

→ SMBとSMCは必要(参照: JGW-T1402941)。

Interface between MC board and RTS

Assigned to Michimura and Nakano

Qty

Interface

Size

Location

Description

TTFSS

1

BNC, Dsub 37pin

PSL

TTFSS Interface

1

BNC, Dsub 37pin

PSL

MC common mode servo board

1

BNC

1U

IO rack

not designed yet for KAGRA

RF PD

2

BNC

IMC REFL, FRC TRANS

RF QPD

2

?

IMC REFL A/B

RF splitter

2

PSL?

Coax. cables

2

BNC/SMA

5m?

length depend on RF distribution

Coax. cables

1

BNC/SMA

3m?

length depend on RF distribution

Coax. cables

11

BNC/SMA

1m

IO rack, PSL table

Power cables

5

1m

(Qty needed for TTFSS is also included)

→ MC board: JGW-T1402941 (配線図あり)

→ TTFSS: JGW-G1402963 (配線図あり)

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

/!\ Edit conflict - other version:

3. http://gwclio.icrr.u-tokyo.ac.jp/lcgtsubgroup/digitalsystem/2012/03/new-focus-picomotor-controlled-at-stda.html

/!\ Edit conflict - your version:

3. http://gwclio.icrr.u-tokyo.ac.jp/lcgtsubgroup/digitalsystem/2012/03/new-focus-picomotor-controlled-at-stda.htm

/!\ End of edit conflict