This information has been copied directly from the Callisto P manual.
 

1.1 Overview

Callisto-P is a 6-input SDI portable switcher for use in field locations as a stand-alone unit. It
offers cut, auto/manual mix and wipe and fade to black, together a DSK and monitoring
outputs AUX A and AUX B. Both programme and preview outputs are available in SDI and
composite. All inputs are terminated in 75R. Six composite inputs are available as an option.  (This unit has 4 composite and 2 SV inputs along with the 6 SDI inputs.)

The unit is protected by internal fuses against the unlikely event of a malfunction. The
switcher is fitted with frame stores as standard, so it will accept asynchronous inputs, and can
operate in stand-alone mode, or you can genlock the switcher to a reference source. Note
that in frame mode, there is a one frame delay in the signal path. If this is not acceptable, you
can work in line mode with the sources genlocked. In this mode, the total delay through the
switcher is about 1 line. The programme, preview and auxiliary signal paths are 10-bit
processing, while the composite outputs are 8-bit.

As with all switchers of this type, the switcher uses two full frame stores to handle
asynchronous inputs. Accordingly, you will notice when working in frame mode that switching
(hot-cutting) on the programme bus causes the output to freeze for one frame before making
the switch. If you wish to avoid this condition, the switcher should be set to work in line mode
and the sources genlocked. To cut between sources in field mode, we recommend that you
use the take function.

2.2 Manual mix mode   

With the mix-wipe switch set to mix, the fader will mix between the selected sources.

2.3 Auto mix/wipe mode

Press auto-ftb so that it is unlit. The display will read Axxx, where xxx is the speed setting
for the auto transition in frames per second. Use the set control to adjust this as required.
With the auto-man switch set to auto, the fader will (according to the setting of the mix-wipe
switch) mix or wipe between the selected sources when the take button is pressed. The
speed of the transition offers the range 0-150 frames in 1 frame increments. Note that the
take button is disabled during transitions.

2.4 Fade to black

Press auto-ftb so that it is lit. The display will read Fxxx, where xxx is the speed setting for
the fade to black transition in frames per second. Use the set control to adjust this as
required. Press ftb and the picture will fade down at the set rate. Press again, and the
picture will fade up. The speed of the transition offers the range 0-150 frames in 1 frame
increments. The ftb button is always live, so you can reverse the fade at any time during its
operation. During the transition, the ftb button will flash, and remain lit when the output is
faded to black.                                                              '

2.5 Auxiliary outputs

Outputs AUX A and AUX B are controlled by the front panel rotary switches, and provide
independent monitoring of the sources in SDI.'

2.6 Composite input source selection                                         <?

Note: the'switcher must be in hybrid mode for this function. See page 8 for more information.
If your switcher has been fitted with the composite input option, you can change any of the
inputs from SDI to composite format. To do this, hold down the shift key and press the
preview bus switch corresponding to the input you wish to be composite. The I.e.d. above
that switch will change from green (SDI) to red (composite. Once the change is effected, you
can use this analogue source in the usual way. To revert a channel to SDI. hold down the
shift key and press the preview bus selector again.

Important note on programme bus switching: This switcher is of the dual-converter type.
Any analogue source selection made on the programme bus will result in a temporary freeze
on the output as the converters resynchronise. For this reason, we do not recommend that
you use the programme bus for "hot-cutting" when on-air, unless you are working in line
mode with the sources genlocked to a common reference..

2.7 DSK set-up and operation

To enter DSK set-up mode, hold down the shift key and press DSK. The DSK light will flash.
In this mode, the display reads "DXXX". This represents the DSK transition rate, and can be
set to any value between 0 and 150 frames with the SET control.

In DSK set-up, the programme and preview source buttons indicate the key and fill channels
, respectively. The default positions are inputs 5 and 6, but others may be selected if required.

The switcher does not retain memory of the C.and D channel inputs, so it may be a good
idea to use inputs 5 and 6, so that the DSK is correctly set up each time you switch on.

Once you are happy with the DSK settings, press DSK again, and the switcher will return to
normal operation. Press DSK again, and the button will flash while the DSK is faded up.
Press once more, and the DSK fades down.

Note: future issues of firmware for the DSK will include adjustments for gain, soft clip and
black level. Please contact Brick House Video for further details.

2.8 Bars and black generation

Selectors 7 and 8 on the front panel are labelled "bars" and "black". Future issues of firmware
will include these features.

3.0 Menus

The menu functions are allocated as follows:

Operation        Engineering      Composite      Factory

Test generator     625/525           Monitoring        Fader set-up
Soft edge         V-fade                              SDI/composite
Border width       Field selection
Border colour      No-signal output
Aspect ratio       Protocol

On-screen menu

Frame/line mode

Sync timing

3.1 Operation menu (Ops1)

To enter the operation menu mode, hold down shift and press ftb. The display will read
"Ops1", and ftb and take will flash slowly. The lower case legends beneath the programme
bank 1 - 4 and preview bank 1 - 4 source selector buttons now apply. To exit this menu,
press take at any time.

Note that any function is selected by pressing the corresponding source button; pressing it
again or pressing another source selector button will deselect that function.

3.1.1 Test pattern generator

Press programme 1 to select test patterns. Rotating the set control will cycle through 75%
bars, SDI test field, grey field and colour field. When the display reads "OFF", the programme
output will reappear.

3.1.2 Soft edge

Press preview 1 and use the set control to adjust the level of wipe transition softness in the
range 1-15.

3.1.3 Border width

Source selector programme 2 sets the border width. Use the set control for the desired

Some of the switcher settings are stored in battery-backed memory. If the switcher is
not used for a long time, it is possible that some of these settings may revert to the default
condition. To change your switcher settings, see the menu section starting on page 6. For
hybrid switchers users, see also the menu settings on page 9.

Note 2: If you have any comments or questions about this manual, please write to
sales@brickhousevideo.com. Firmware upgrades will be issued from time to time at no
charge to the owner, subject to the condition that the user undertakes to return all original
devices.