SWITCHING FROM POCO TO TELCO
1. Turn off power at the telescope for poco and telco:

  • Flip ganged poco power switches to off.
  • Press telco panic button (to make sure it's off you can press reset button first, then press panic).
    		•
    2. Switch spectrograph limits from poco to telco.

  • Remove front cover from dome j-box (east side of south pier).
  • Remove the wires labeled
    "TB4-1 NEW SYS" and "TB4-2 NEW SYS".
  • Attach the wires labeled
    "TB4-1" and "TB4-2".
  • Tape the ends of the wires you've disconnected.
    • 3. Switch the HA stepper control from poco to telco.

  • Connect the black wire that is hanging free to the black wire on the connector block.
  • Connect the white wire that is hanging free to the white wire on the connector block.
  • Move each remaining wire, one at a time, from the 'new system' side to the telco side. The wires go in the same order, so the rightmost wire on the poco side, goes to the rightmost wire on the telco side. The second rightmost wire on the poco side goes to the 2nd rightmost connector on the telco side, and so on.

    When you're done you should have
    white --> leftmost connector
    black --> 2nd leftmost connector
    red --> 3rd leftmost connector
    green --> 4th leftmost connector
    white/red stripe --> 5th leftmost connector
    white/faded blue stripe --> 6th leftmost connector

    		•
    4. Switch the HA slew motor control from poco to telco.

  • Disconnect the black and white wires from the 'new system' motor control.
  • Disconnect the 2 blue wires connected to the clutch on the 'new system' motor control
  • Connect the black wire to the telco connector labeled motor 1.
  • Connect the white wire to the telco connector labeled motor 2.
  • Connect the blue wires to the two clutch connectors on the telco controller. Order is not important.
    		•
    5. Switch the Dec stepper control from poco to telco.

  • Disconnect the four wires connected to the 'new system side'
  • Connect the wire labeled '1' to the rightmost connector.
  • Connect wire '2' to the 2nd rightmost connector.
  • Connect wire '3' to the 3rd rightmost connector.
  • Connect wire '4' to the 4th rightmost connector.
  • Connect wire '5' to the 5th rightmost connector.
  • Connect wire '6' to the 6th rightmost connector.
    		•
    6. Switch the Dec slew motor control from poco to telco.

    N.B. Some of the terminal block screws for the clutch are stripped; see the picture for how I connect it.

  • Disconnect the black and white wires from the 'new'system' motor control.
  • Disconnect the 2 blue wires connected to the clutch on the 'new system' motor control
  • Connect the black wire to the telco connector labeled motor 1.
  • Connect the white wire to the telco connector labeled motor 2.
  • Connect the blue wires to the two clutch connectors. Order is not important for the blue wires.
    		•
    7. Switch the dome encoder cable from poco to telco.

    Just switch the cables, they should both be close to the dome encoder connector. The 'new system' (poco) cable should be labeled.
    8a. Disconnect the rough position pots from poco.

  • Disconnect the rough position pot cable from the red box in the dome.
  • Next to the rough position pot connector on the red box is a switch. Flip it to 'old system'.
    • 8b. Connect the rough position pots to telco

  • Go to the control room.
  • Turn off telco.
  • Connect the rough position pot cable at back of Telco rack.
    		•
    9. Switch the secondary mirror control from poco to telco.

  • Disconnect the secondary mirror cable from the cable sitting on top of the red box.
  • Connect the secondary mirror cable to secondary mirror connector on the red box.
    		•
    10. Switch the diagonal mirror control from telco to poco.

    The connectors are standard 3 prong connectors (they're made from black extension cords) and are labeled. Plug the diagonal mirror cable into the 'old system' cable.
    11. Switch the dome motor from poco to telco.
    N.B. The AC power cord must be plugged into the power strip on the floor for Poco (not shown), and into the wall outlet in the niche for Telco (the latter is switched by the "Panic" button.)

  • Unplug the dome motor AC from the power strip on the floor (not shown).
  • Pull the lever on the side of the panel and slide the panel out.
  • Disconnect the 'new system' cable and connect the telco cable. The connector is hard to reach.
  • Plug the dome motor AC back into the power outlet on the wall.
    		•
    12. Turn on and test.
  • Turn on telco.
  • Run init_display.
  • Turn on auto dome, too make sure the dome motor control is working.
    • 13. Log on to bernard and kill telcod.
    14. Log on to nickel and start telcod.
    /usr/local/lick/etc/init.d/telcod start
    15. Use telcontrol to set the time and date.
    16. Start or restart the guider.
    It should display a message indicating that it can talk to telcod.