SDI-TD-DMUX-4
Rev.
5
the above allocations gets active, BUT at the same time allowing GYDA to send commands
with any other input stream-to-output allocation. So, when this setting is applied to the DIP-
switches, the actual configuration depends on GYDA commands.
On power-on, the actual swap setting will be according to the dip-switches, except that
when set as in Example 4, the last GYDA command will still be active
The factory default setting will be as in example 4, with last GYDA command stored in non-
volatile memory as in example 1. This means that the default start-up is “no channel
swapping”.
All other DIP switch settings are however ‘safe’ in the sense that GYDA cannot override these
settings.
Other board settings available from GYDA:
Control item
GYDA mode
(DIP-sw. = ‘11111111’)
Non-GYDA mode
(any other DIP-setting)
Input select
GYDA can select ‘electrical’, ‘optical’ or ‘auto’
modus. In ‘auto’ modus, the optical input has
priority over the electrical input. There are two
auto-modus setting, one with signal lock
control and one without.
‘Auto’-modus only. In
‘auto’ modus, the optical
input has priority over
the electrical input.
EDH counters
Under GYDA control (can be read and reset
from GYDA).
Counting still active on
the MUX board (on
errors), but without any
functional significance.
EDH flags
Can be read from GYDA.
Flags still operating on
board, but without any
functional significance.
EDH masks
Can be changed from GYDA. Not stored in
non-volatile memory, so power on default is ‘all
active’, until GYDA configures otherwise.
EDH masks remains
unchanged from last
setting. Default on
power on is all active.
Channel swap
Can be controlled by GYDA, as shown in above
table.
In addition, GYDA can select internal signal
generators for test and debug purposes. Colour
bar 525, colour bar 625, black 525 or black
625 can be selected for each SD-SDI output.
Channel swap according
to DIP-switches. See
above table.
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