DEVICE DESCRIPTIONS
5-98
PROMATRIX System User Handbook 1.2
External Pilot Tone Configuration
This configuration is used for the spare device switching in single program
installations, i.e. when a single LF-signal is fed to several power amps, when at the
same time the pilot tone signal is generated by an external source (e.g. DPM 4000),
consequently not employing a DCS 422R module. The power amps inputs are
connected in parallel. The DCS 423R module switches the output signal of a power amplifier that fails to operate
over to the corresponding spare amp. This configuration demands for the least amount of modules.
Pilot
Detector
Pilot
Detector
Pilot
Detector
Pilot
Detector
Pilot
Detector
Amp
Amp
Amp
Amp
Spare
Amp
Prog A
(with 19kHz Pilottone)
Prog A
Prog A
Prog A
Prog A
The following table shows a listing of needed modules for the configuration of different spare systems using an
externally generated pilot tone signal.
DCS 421R
SETUP
AMPs
SPARE
AMPs
DCS
400
DCS
405R
DCS
421R
DCS
422R
DCS
423R
1-4 1 1 0 1 0 1
Max.
68
1 2 2 1 0 17
2-8 2 1 0 1 0 2
Max.
68
2 2 2 1 0 17
3-12 3 1 0 1 0 3
Max.68 3 2 2 1 0 17
4-16 4 1 0 1 0 4
Max.
68
4 2 2 1 0 17
Summary of Contents for PROMATRIX System
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