36
| DETAILED OPERATING INSTRUCTIONS
PDM
PDM Operator's Manual Version 2.4a • September 2019
Building delay in progress
Building
Exiting delay in progress
Exiting
Delay currently full
DelayFull
Delay safe: dump increment achieved
DelaySafe
Delay unsafe: dump increment
not achieved
DelayUnsafe
Delay currently empty
DelayEmpty
Output muted (when Dump or Cough
are held down and there is no audio
in delay
Muted
Important notes about the table
*
— Where an input function has the same name as a PDM front-panel button, the input
behaves just like that button.
For example, a momentary pulse on a GPIO
Build
input will start building the
delay, just as if you’d tapped the
BUILD
button.
† — There are multiple outputs for some PDM functions:
n
If an output setting ends with
Trig
, PDM generates a single output pulse when that
state is reached. This can be handy for interfacing with automation systems. Output
pulse length can range from 100 to 1000 ms and can be set in the Configuration page
“Hardware GPIO” Section. Default value is 250 ms.
n
If an output setting ends with
Lamp
, PDM’s GPIO output mimics the front panel
button’s lamp. It stays low when the lamp is on, high when the lamp is off, and cycles
when the lamp is flashing. This can be handy for building custom remotes for talent
and producers.
n
Building
,
Exiting
,
DelayFull
,
DumpReady
,
DelayEmpty
, and
Muted
indicate PDM’s
current operational state, and are held low for as long as these states exist.
n
DumpReady
indicates when the Dump Size (
page 27
) has been reached, and a
single dump is now possible. It can be connected to your phone system or console
to absolutely block incoming calls until they are safe.
n
DelayFull
can be used to tell talent or producers that the maximum delay has
been reached. In most setups, this will mean that multiple or extended dumps are
also possible.
¶ — “Cue” and “Flag” let you automatically delay the signals from satellites, automation sys-
tems, and producers’ control panels. This keeps the signals in sync with appropriate program
audio at all times.
Summary of Contents for PDM
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