1. Remove Cass floor and previous instruments and racks

2. Set Cass Ring to 0 deg.

   • Tightening handle should be to the West

3. Lower AO instrument on handling cart using hand crank

   • Lower to near bottom of range

4. Position AO instrument with long end to North

   • North is marked on handling cart. The handling cart crank will be W.

5. Raise ram until guide pins approach Cass ring

   • When top of instrument is into cage, remove the stimulus cover

   • (To remove cover, loosen captured bolts on end, then lift South end until hooked hinges on North end are clear and cover lifts out).

   • Clearance is tight, especially on West and South.

   • Watch for wheel brake on South side.

   • Pins are on East and West sides of cart.

   • First contact will be on South end, since the North end of the instrument is heavy and rides lower than the South while on cart. To prevent binding, two people should hang off South end of instrument to help balance.

6. Pull cotter pins from cart

7. Carefully raise ram until first contact with mounting flange is made

8. Use hand crank to compress cart springs approximately 2 inches

9. Tighten Cass locking handle by turning it about 14 revs CW

   • When tightened, remove and secure the hand crank.

10. Loosen, but do not remove, 4 bolts holding instrument to cart

    • If bolt is stubborn, try rotating cylindrical cart post using 2 hands

11. Lower cart using hand crank

    • After lowering 2 or 2.5 inches, make sure AO is secure and 4 bolts are easy to turn

    • The SE bolt is shorter than the other 3

12. Remove 4 bolts holding instrument to cart

13. Lower handling cart using ram and reinstall Cass floor

    • Watch for clearance of cart going through Cass floor, especially on West side

14. Rotate Cass ring to 335 degrees

15. Remove mirror covers from OAPs, DM, and PHARO

    • When reaching into instrument through base doors, always use clean latex (or similar) non-powdered gloves to ensure optics stay clean

16. Proceed to "Installing AO Cass Racks"

1. Install AO and PHARO electronics racks onto Cass cage

   • AO rack with top monitor goes on SW; PHARO rack goes on S

2. Proceed to "Cabling AO Instrument in Cass Cage"

1. Connect and relieve monster motor cable

   • This cable splits in two at each end. It runs between the large connector low on the SW Cass rack and the connector mounted on the underside of the optics bench, near PHARO.

2. Connect and relieve DM cable

   • The DM cable runs between the large connector low on the W Cass rack and the connector atop a large flat aluminum box on top of the N end of the optics bench.
   • Using long cable ties, or the special strap for this purpose, secure the 12V power supply to the floor of the Cass cage.

3. Install blower fan 12V power supply

   • Plug power supply power cable into Cass outlet

4. Connect 3.5-inch-diam. air hose

   • The air hose runs between the elbow connection on the underside of the NW corner of the optics bench, into the back of the W rack. This requires opening the back of the W rack. The hose connects to the back of the topmost box in the W rack.

   • The WFS power cable runs from the connector panel on the underside of the NW corner of the optics bench to the back of the W rack.

5. Connect and relieve the WFS power cable(s)

   • With the back of the W rack open, feed the 25-foot-long power cable through the front of the W rack (above the laser plate), and connect to the back of the WFS power supply.

   • Run the 6-foot-long power cable similarly to the 25-foot-long cable, but instead of connecting cable, simply secure this cable using cable ties, so that a rapid manual change of cable can be made during engineering observations

   • With the back of the W rack open, feed the long yellow fiber cable, labelled "white light", through the front of the rack (above the laser plate). (The white light fiber is usually stowed by coiling it and securing atop the W side of the optics bench). Remove the fiber chuck from the mount directly in front of the white light lamp (on north side of back of laser plate). Screw the fiber into threading inside the fiber chuck, then replace chuck into mount. The chuck is secured only by a press fit into its mount. The end of the white light fiber should be flush with the face of the chuck mount.

   • Close the back of the W rack.

6. Connect and relieve the white light source fiber

   • The WFS camera fiber cable runs from the connector on the underside of the NW corner of the optics bench (DUAL: PALAO END) to roughly the center of the thin patch panel on the SW Cass rack (DUAL: LEFT RACK)

7. Connect WFS camera fiber cable

8. Connect laser fiber

   • The green laser fiber labelled "FIBER" shared the 3/4-inch black conduit containing the WFS camera fiber cable. It runs from a small fiber connector located on a narrow aluminum patch panel on the W rack up to the S side of the stimulus to a connector also labelled "FIBER".

9. Connect 8-fiber cable

   • The 6-foot green cable labelled "8-Fiber" runs from the narrow aluminum patch panel on the SW rack to the connector labelled "ADAPTIVE OPTICS/8 FIBERS" on the panel located on the inside of the Cass cage above the W AO rack.

10. Connect the DM transmitter fiber cable

    • The DM transmitter fiber cable is labelled "ORANGE" and runs from the narrow aluminum patch panel on the SW rack to the upper left corner of the VME chassis in the W rack, just beneath the laser plate.

11. Connect the shutter cable

    • The gray 3-foot cable labelled "SHUTTER" runs from the brown connector on lower right part of the panel below the thin aluminum panel on the SW rack (this panel contains a Melles Griot shutter box) to a similar connector on the left side of another narrow aluminum patch panel on the W rack.

12. Connect the video cable

    • The video cable is a long BNC cable that runs from the lower level of the SW rack up to the "Cass 7" connector on the BNC patch panel on the inside of the W side of the Cass cage.

13. Secure the long cables neatly to the floor of the Cass cage

    • Since ring rotation is common with the AO system, there must be sufficient slack in all cables to allow 180-degree rotation of the Cass ring without damage to any cable.

    • It is helpful to have one person stand on the ram below the Cass cage floor to help secure the long cables with cable ties.

14. Power on AO racks.

    • Power cables for each rack are located near the botton of the rack. A red switch at the bottom of each rack turns the rack power on and off.

15. Proceed to Cabling PHARO

• See PHARO Installation Guide

• Proceed to "Cabling AO Rack in Computer Room"

1. Connect the ethernet cable

   • The blue rack is connected to the AO workstation in the data room by first running a 2 ST fiber cable from ports 1 and 2 of the fiber breakout box, located on the SE wall of the computer room, to the transition module at the bottom left portion of the inside of the left wall of the blue rack, as seen from behind with the rack door open.

   • Attach the fiber marked with a piece of black tape to port number 1 on the box, and the upper of the two connectors on the transition module.

2. Swap the 8-fiber connector within the blue rack.

   • The blue rack has two 8-fiber cables mounted inside of it. Connect the cable labeled "To telescope" to the mating connector on the top of a black box mounted on the left side of the rack, as seen from behind.

3. Connect PC display extender

   • The WFS PC monitor temporarily in use in the data room receives its signal beginning from the back of the WFS PC in the blue rack. The VGA signal is repeated by a Cybex repeater, up to the data room, using a video cable borrowed from the Cornell AutoGuider.

   • To reach this cable, the Cybex repeater is typically placed on top of the blue rack, since this is as far as the Cornell cable can reach.

4. Proceed to "Cabling AO and PHARO workstations in data room.

1. Make space in data room for both AO and PHARO workstations.

2. Roll AO workstation bench into data room

3. Roll PHARO workstation bench into data room

4. Plug in all workstation and monitor power cables to UPS power

5. Power on the RAID disk system on the AO workstation bench

   • Important: the proper power-on sequence is to first turn on both power supplys via switches on the back of the RAID disk, then power on the LCD display on the left side of the front of the disk, behind a removable panel.

6. Cable the AO workstation to the AO blue rack in computer room.

   • The AO workstation connects to the blue rack in the computer room via a pair of ST fibers that run from the breakout box located above and to the right of the night assistant's desk (on the E wall of the data room) to the Sun-proprietary-to-ST transition module that plugs into the back of the AO workstation via a D-connector.

   • Fiber ports 1 and 2 should be used, with the fiber marked with black tape being inserted into port 1.

7. Cable the AO and PHARO workstations to the Palomar LAN

   • The AO workstation is connected to the Palomar LAN via a BNC cable that runs from the data room E wall panel labeled "Repeater" to the transition module on the back of the AO workstation.

   • To network PHARO, include a BNC "T" connector between the panel and the AO workstation, with another BNC cable running to the PHARO hub. Usually the PHARO hub should be set to be "self-terminating".

8. Cable and power the auxiliary AO video monitor

   • The auxiliary RS170 monitor requires a BNC cable run from the panel near the left side of the E wall of the data room labeled "From Comp Rm", subpanel labeled "SAM" and "DRM", connector #4 to the "video in" connector on the back of the RS170 monitor.

9. Cable and power an additional guider monitor for use at AO workstation

   • An additional RS170 monitor is usually set up to display the telescope guider information, to ease the use of the AO system. This requires a BNC cable run from the panel labeled "Aux Patch" and connector labeled "Video" and "11/23" to the "video in" connector on the back of the RS170 monitor.

10. Cable WFS PC monitor

    • Connect the WFS PC monitor VGA cable to a Cybex repeater (usually stays on AO desk). To other Cybex port, connect cable borrowed from Cornell autoguider (which runs up from the computer room).

11. Power on the workstations and monitors

12. Balance telescope

    • Double-check Cass cage for loose tools or other issues involved with pointing during balancing, such as cable strain relief.

13. Proceed to "AO/PHARO Checkout

1. Log into AO workstation as AOUSR

   • Need notes.

2. Run the test procedure: TBD

   • If any part of test program fails, check the pertinent sections of this installation procedure.

3. AO/PHARO installation complete

   ---

   ---

   ---

4. Bulky end of A.0. instrument points to north side of telescope. "N" marked on handling cart. Crank on handling cart will be to West.
5. Slowly raise RAM** with A.0. instrument on its cart...when top of instrument is into cage, remove the stimulus cover (curved sheet-aluminum housing). (Loosen captured bolts on south end; then lift that side until hooked hinge on north end is clear and cover lifts out).
6. Clearance is tight, especially on West and South. Watch for wheel brake on South side.
7. Turn the crank on the handling cart CCW to lower the instrument virtually as far as it will go...until you feel resistance or see that you are at the lower end of travel.
8. Raise RAM until conical mounting pins come closer to entering holes. Pull large cotter pins on handling cart on East and West sides. Raise RAM until South conical pins enter into holes. Bump up until tapering of conical pins insert into holes.
9. Use crank on handling cart to lift instrument into Mounting holes. South side will complete travel first, since north end of instrument is heavier.
10. While two people hang off the south end of the optics bench to level instrument, keep cranking until North side holes complete entry.
11. Tighten Cass locking handle by turning ~14 turns clockwise.
12. Loosen, but do not remove, the four bolts holding instrument to cart.
13. Use crank on handling cart to lower cart from instrument.
14. After traveling ~2-2.5 inches, make sure A.0. instrument is secure, remove the four bolts. Note that the bolt on the S.E. post is shorter than the other three bolts. Lower RAM with handling cart.
15. After installation, rotate ring to 335 Deg...or cable first but allow enough slack to permit this 25 degree rotation West of North.

4) REMOVAL OF A.O. INSTRUMENT

1. Raise RAM with handling cart until the cart is ~1/2" from the instrument. Line up by loosely installing four bolts. Short bolt goes on S.E. post.
2. Use crank on handling cart to complete full contact with instrument; ~2-2.5" of travel.
3. Tighten four bolts to secure handling cart to instrument.
4. Raise RAM up to compress four legs of handling cart to black marks. Loosen tightening clamp handle by turning CCW ~14 turns.
5. Slowly lower RAM, watching all four conical ring mounting pins. If it seems to be sticking, particularly on the South side, use crank on handling cart a few turns. If it continues to sag to the North side, have someone put downward pressure on the instrument on the South side.
6. Lower RAM. Insert two large cotter pins. Continue lowering RAM with instrument securely attached to handling cart. Stop when the instrument is in a good position to install the stimulus cover. The South side has flange inserts and the North side has the clamping attachment.
7. Preferably, with four (4) people, roll instrument to instrument storage bay.

5) CABLING: HUGE CABLES/AIRHOSE

The two huge cables have opposite genders at each end, and so can't be connected wrong (without effort!). Route them both through the cable track on the Cass cage floor.
Caution: The air hose MUST be installed in the correct orientation.

1. Connect the "monster motor cable"...the slightly thinner of the two large, black-cloth-covered cables; the one that splits in two at each end. It runs between the large connector low on the left-hand cass rack and the connector mounted on the underside of the optics bench, near the PHARO dewar.
2. Connect the DM (deformable mirror) cable...the other, thicker black-cloth-covered cable. It runs between a large connector low on the right-hand rack and the connector in the clear area on the north end of the optical bench, on the "upper" (stimulus) face...on the large, flat aluminum box mounted there.
3. Connect the 3.5"-diameter plastic airhose between the back of the right-hand rack and the elbow connection at the north-west corner of the instrument (near the wavefront sensor camera). Caution: The end with the longer section of 2.25"-diameter blue hose is connected at the optics-bench end. The electrical cable tied to the airhose is connected in an obvious way at each end.

6) CABLING: SMALL CABLES/FIBERS

On the left-hand rack, the one with the video CRT [FIG 3], find the narrow aluminum patch panel for optical fibers and start cabling there as follows:

1. To the right end, in the ground-floor AO lab, connect the black "8-FIBER" cable from the wiring chimney in the NE corner of the room; on the telescope, connect the shorter (6 foot or so) green "8-FIBER" cable, and run its other end to the connector (labelled ADAPTIVE OPTICS/8 FIBERS) on the patch panel located above the right-hand AO rack on the W wall of the Cass cage.
2. To roughly the center of the thin patch panel, connect the grey "DUAL: LEFT RACK" fiber cable pair that emerges from a protective 3/4" black plastic conduit; connect the other end ("DUAL: PALAO END") to the AO instrument, NW corner, near the air hose connection.
3. To the remaining connector, attach the 3-foot-long "ORANGE" fiber; the other end goes to the other rack, to the upper left corner of the bank of 21 thin modules just under the laser shelf.
4. On the next panel down, which contains a Melles Griot shutter box, connect the 3 foot gray "SHUTTER" cable to the brown connector at lower right; the other end runs to the other rack, to a similar connector on the left side of another narrow aluminum patch panel.
5. This new patch panel on the right hand rack has one other connector; attach to it the 3-foot length of green "FIBER" that emerges from the 3/4" black conduit that carries the "DUAL" fiber pair. On the other end, the green "FIBER" leaves the black 3/4" conduit 6 or 8 feet before the end, and is strung up to the connector labelled "FIBER" near the PHARO end of the AO instrument.
6. String the long yellow "WHITE LIGHT" fiber, emerging from under one of the 6" brown cover panels in the stimulus atop the AO instrument, to the back of the right-hand AO rack, where it gets mounted in a fiber chuck near the rear of the laser shelf...for transport, coil and stow this fiber next to the stimulus.
7. Connect the long BNC cable from the lower level of the left-hand rack and route it through a patch panel to the small video monitor in the data room.

7) LAYOUT OF PALAO AT CASSEGRAIN:

The heavy Lodestar PS for the fan and all the cables must be held in place with plastic cable ties.

The two electronic racks installed near the instrument at Cass...NB this is an old photo, and the rack patch panels have been changed

The airhose and the two heavy black cables must be arranged carefully in the Cass cage, as shown in the two photos below:

Cable layout in Cass cage: (L) looking West toward racks; (R) looking North, under PALAO.

8) SETUP OF COMPUTERS:

1. Cable/decable ONLY with power off to all computers and associated electronics boxes;

How to break down the computer system in the AO lab

1. Shutdown "HOTH":
   1. logon as aousr
   2. execute the command, "sudo /usr/sbin/init 0"; the screen should show an "ok" after 1 or 2 minutes.
2. Power down the RAID system...the large, noisy disk farm
   1. Shut off the RAID system with the button on the front, top left corner
   2. Shut off the two power-supply switches at the back of the RAID system
3. Power down "HOTH": power switch is around back, at bottom left
4. Disconnect "HOTH" from the network: remove twisted pair at back
5. Disconnect the network fiber for "AOCP": the orange fiber from ports 3 & 4 in the large computer rack to the left of HOTH.

1) PALAO (PALomar Adaptive Optics) CONSISTS OF:

1. PHARO...the large blue dewar with red electronics box [FIG 1]
   ...see Tom Hayward's manual for setup; has a 1/2-ht rack put to left of AO racks in Cass cage.
2. a large, black optical bench housing PHARO and AO optics [FIG 2]
   ..."stimulus" is on top; main PALAO optics hang under bench; PHARO (absent) would hang at left.
3. 2 adjacent electronics racks (tan-colored) [FIG 3]
   ...the one with a video CRT goes on the left.
4. 1 blue-colored rack in mezzanine computer room [FIG 4]
5. a large wheeled desk with Sun workstations [FIG 5]

2) POWER CYCLING/SAFETY RULES:

1. Be careful cycling power to the right-hand tan-colored electronics rack:
   1. Powering up: make sure the voltage potentiometer on the DM PS (Kepco; 2nd-from-bottom panel) is turned all the way down (CCW); then turn that PS on with the ganged dual switch at left; slowly ramp up the voltage pot until the adjacent voltage meter reads 100 volts.
   2. Powering down: slowly ramp voltage down before turning off Kepco PS power switch.
2. Be careful turning on the large black PS in the top position of that right-hand rack...do so ONLY when the loud cooling fan embedded in the long black in the long black 3.5"-diameter airhose is ON!!!
   To turn cooling fan on, connect its orange wire into the upper (+) terminal of the OUTPUT pair just left of center on the Lodestar 8203 PS [FIG 6], and the white wire to the lower (-) terminal; use the ON/OFF switch at lower right, and adjust for about 12 volts in LH display (picture shows 11.8 V).
3. Follow normal safety procedures when shutting down the computers (Sun SPARCstations)...
   1. Logout from the CDE (Common Desktop Environment) by opening the dialog box at the upper left corner of the workspace-management icon, and selecting "log out..."
   2. To shut down, press the special key at the extreme upper-right corner of the keyboard (circle with a vertical line through it at 12 o'clock).
   3. Turn off all power switches.
   4. The "disk farm" (the large, noisy box on the computer desk that is not a Sun pizzabox) has two power switches, and it will emit a continuous beep on battery power after it is shut down.
4. When starting up the computers again...
   1. Make all cable connections with power off to all boxe
   2. ...
   3. ...