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Redbox RB-PD2 User Handbook
SYNCHRONISERS, DELAYS &
SILENCE DETECTORS
SY
NCHR
ONISERS, DEL
A
Y
S & SILENCE DE
TEC
TORS - RB
-PD2
8
A front panel blue vacuum fluorescent display with rotary controller is used for selecting
the various settings of the profanity delay, which include the start delay and dump modes,
safe delay build/exit speed, period, source (analogue or digital), sample rate and sample bit
width as well as the required delay time. The current delay value, in seconds, is permanently
displayed as is the current status of the unit. Additionally, input peak digits can be selected
from +12dBu, +18dBu and +24dBu for FSD and two left and right pre-set potentiometers on
the rear panel allow the input gain range to be altered by ±3dB around the selected peak
digits.
The analogue output gain range can be altered in software from -6dBu to +24dBu output
level, ref FSD. Both analogue and digital outputs can be separately muted and a front panel
Bypass button disengages electro-mechanical relays to divert both analogue and digital
inputs to their outputs. This is also disengaged automatically when a power-fail occurs.
The RB-PD2 features a remote port supplying 8 inputs and 6 outputs, all of which are freely
assignable. The inputs can be used to trigger any of the unit’s functions such as build delay,
activate cough or enter record mode and start a new recording. The outputs can provide
external signaling to indicate when certain events have occurred such as the delay reaching
the required value or the outputs being muted. From V1.06 firmware onwards, the RB-PD2
can delay remote inputs 1-6 to the remote outputs 1-6, so that remote control commands
can also be synchronised with the same delay as the RB-PD2.
Because playback from a Compact Flash™ card can be triggered remotely, the RB-PD2 can
also be used at transmitter sites to play an emergency audio file via GPI in the event of
silence detection.
The front panel controls can be locked out for situations where remote control is being used
to run the unit, or where physical security is required.
