ASUS mypal a600 User Manual

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Avolites Pearl 2000 Operators Manual - page
 14
   P2000MAN.DOC  19/10/99 17:59
A major glitch in the mains supply could cause the desk to lock up, which
could corrupt your programming if it occurred at this time. This happens
extremely rarely, but always at the worst possible time!
In every case make regular disk backups. (See Section 14.1.2 Saving your
show to disk
).
The less time you have for programming the more important it is to
make backups
.
Happy programming from everyone at Avolites.
1.4 Overview of the desk
1.4.1 The Back Panel
There are a number of different sockets and outputs on the rear of the desk.
On the far left is the Power Socket where you will insert the mains lead for
the desk. Above this is the Power Outlet for powering the VGA Screen, and
the Voltage Selector Switch, which enables the desk to run on either 110v
or 240v. See the section above, 1.3.1 The important stuff for further details.
Next to this is the Air Intake for the desk. It is important that this is never
obstructed. Adjacent to this is the Mains Switch.
The DMX Outputs are a pair of DMX 512 sockets configured to control up to
four DMX lines of 512 channels each.
If you are using a new Pearl 2000, which will have ‘Pearl 2000’ etched into
the front panel, you can control four DMX 512 channels. In order to access
channels 3 and 4, a splitter is required as the system utilises the two spare
lines of a normal DMX cable. If you do not have the splitter, channels 1 and
2 only will be available in the normal way.
The outputs are wired as follows  :
DMX output 1 : socket 1, pins 2 & 3 (normal DMX pin configuration)
DMX output 2 : socket 2, pins 2 & 3 (normal DMX pin configuration)
DMX output 3 : socket 1, pins 4 & 5
DMX output 4 : socket 2, pins 4 & 5
The splitter consists of a ‘Y’ split which runs pins 2 & 3 straight through onto
pins 2 & 3 of one leg, and puts pins 4 & 5 onto pins 2 & 3 of the other leg to
allow access to the extra channels. Splitters can easily be made or are
available from Avolites Limited.
If you have previous model of the Pearl, it will only be able to provide one or
two DMX 512 channels, depending on when it was bought and whether it
has since been modified. An upgrade kit is available to allow original Pearls
to access two DMX 512 channels. You will need to consult your supplier to
find out if this upgrade has been performed on your particular desk. All
Pearls have two DMX sockets, so this is no indicator of how many channels
they are internally configured to drive.
The Software does not know how many DMX Lines the desk can drive,
so check before you start to patch onto lines B – D.