.. _powering_up:

Powering up
===========

To start HiPERCAM from cold, the following operations must be
performed. This guide assumes that HiPERCAM has been mounted on the
telescope focus and is cabled up. Click on the photos below for larger
images.

1. In the control room, check that the blue HiPERCAM ethernet switch,
   the two HiPERCAM monitors and the speakers are switched on.

.. image:: photos/control_room2.jpg
    :scale: 5%
	   
2. If the HiPERCAM data reduction PC (DRPC) is not powered on, go into
   the control room annexe and press the power botton on the upper
   right-hand side on the front of the case. Ensure that there are two
   USB disks connected to the DRPC - if not, you can find new ones in
   the crates.

.. image:: photos/drpc_cabinet2.jpg
    :scale: 5%
	       
.. image:: photos/drpc2.jpg
    :scale: 5%

3. In the GTC annexe building, plug in the black euro mains power plug
   in the top right-hand corner of the HiPERCAM GPS wall-mounted
   cabinet, located to the left of the entrance door when looking
   outwards. You may need to ask a member of GTC staff to unlock the
   entrance door for you.

.. image:: photos/gps_box1.jpg
	   :width: 25%
.. image:: photos/gps_box2.jpg
	   :width: 25%    
	    
4. Prior to going up to the elevation platform, follow the safety
   instructions given in :ref:`pumping and cooling <pumping>`. In
   summary, put on your safety gear, take a radio, and inform the GTC
   Jefe de Turno (during the day) or Telescope Operator (at night)
   that you are going up to the instrument.

5. Check that the UPS mains power cable from the HiPERCAM cabinet is
   plugged into the left-hand socket of the wall-mounted box near the
   stairs from the Nasmyth platform. Ensure that the left-hand circuit
   breaker above the socket is switched on.
   
.. image:: photos/mains_box1.jpg
	   :width: 25%

.. image:: photos/mains_box2.jpg
	   :width: 25%
		   
6. Turn on the power to the whole cabinet using the external switch
   at the bottom of the rear of the cabinet.
   
.. image:: photos/cabpower_poff.jpg
	   :width: 25%
   
7. Turn on the three internal socket strips by pressing the two green
   switches on the left-hand side of the two rear-facing sockets
   strips at the rear of the cabinet. These switches will illuminate
   when powered on, and the third (internally-facing) socket strip
   will be turned on automatically.

.. image:: photos/socketstrip_poff1.jpg
	   :width: 25%
.. image:: photos/socketstrip_poff2.jpg
	   :width: 25%

8. Turn on the cabinet chiller by pushing the switch up on the
   left-hand side of the DIN rail at the top of the rear of the
   cabinet. Ask a member of GTC staff to turn on the coolant flow to
   this cabinet. You should then start feeling cold air coming into
   the cabinet through the vent at the bottom of the side wall.

.. image:: photos/chiller_poff.jpg
	   :width: 25%

9. Turn on the rack PC. First, switch on the two PC power supplies on
   the rear-left of the unit. Then open the front door of the rack PC
   and press the power button on the left-hand side. Next, slide out
   the monitor and keyboard, and power them on. Wait for the rack PC
   to boot, which will take a few minutes.

.. image:: photos/rackpc_poff5.jpg
	   :width: 25%
.. image:: photos/rackpc_door.jpg
	   :width: 25%
.. image:: photos/rackpc_pon.jpg
	   :width: 25%
.. image:: photos/rackpc_poff1.jpg
	   :width: 25%
.. image:: photos/rackpc_poff2.jpg
	   :width: 25%

10. Log into the rack PC as user ``insuser``. If you need to
    know the password, please :ref:`contact <contacts>` one of the
    HiPERCAM team members.

11. When the window manager has started up on the rack PC, open an
    xterm and check that the GPS antenna is working by typing
    ``tsync_status``. Check that all statuses are *True* and that 4
    or more satellites have been detected.

.. image:: photos/tsync_status.jpg
	   :width: 25%
		   
12. In the same xterm, check that the internal ethernet connection between
    the rack PC and the DRPC is working by typing: ``ssh observer@192.168.1.1``.
    If you can't log into the DRPC, check that all 4 green LEDs are illuminated
    on the fibre-ethernet converter at the rear of the cabinet.

.. image:: photos/fibre_ethernet.jpg
	   :width: 25%

13. In the same xterm, check that focal-plane slide is working by
    typing ``slide home``, followed by ``slide position`` to verify
    that the slide has homed. Then type ``slide park`` to verify that
    the slide moves to a position of 1100 pixels. If the slide does
    not move, verify that the green power LED under the black tape on
    the motor is lit, and try power cycling the slide by disconnecting
    and connecting the connector on the slide.

.. image:: photos/slide.jpg
	   :width: 25%
    	      

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