Calrec SUMMA, Installation Manual

Page: 39 / 96

CALREC
Putting Sound in the Picture
39
CARD TYPES & LAYOUT
Connections
All connections, including power are made
to the front panels of the cards fitted
within, which are recessed from the front
of the core to allow cable clearance within
the bay.
Cardlayout
The Summa core has 9 module / card
slots. A slot should only be fitted with a
module of the correct type for the slot,
as shown in the layout above. Labels
indicating each slot's type are visible once
a module is removed.
The central module in the core is the
reset and sync interface card. Two slots
are provided for each type of processing
card for redundancy. Slots to the left of
the central reset card are for primary and
normally active router, DSP and control
processors. The slots to the right mirror
this layout and are for the secondary or
hot-spare processing modules. The first
and last slots are for power supplies,
a PSU in either slot can power a fully
populated core. Two PSU's are fitted and
the load shared to provide redundancy.
FRONT VIEW - POPULATED CORE
Installing/removingcards
Modules are fixed in place by two captive
front panel screws, one top and one
bottom. To remove, unfasten the screws
until they are loose then pull on the card
handle.
It is important to observe ESD precautions
when handling any of the cards. Avoid
touching the circuit board and use ESD
bags or mats to put modules on.
Redundancy
Summa 180s come with full redundancy
as standard but are optional for Summa
128s. All systems have compete power
redundancy in the surface and the core,
but redundant control, DSP and routing
is an option. It is recommended that
if connecting to a redundant Hydra 2
network that a secondary router card is
fitted.
Note, if a Summa 128 is being run without
redundancy, the slots to the right of the
central reset/sync module will be fitted
with blanking plates.