DEVICE
DESCRIPTIONS
PROMATRIX System User Handbook 1.2
5-91
The inputs I1 - I4 and ISP (Spare) are balanced and floating. The 100V-signal is connected through via relay from
IN to OUT. The 100V-signal is switched over to the spare amp channels ISP in case of failure of a power
amplifier.
The pilot tone signal is decoupled via transformer and evaluated via DETECT-circuit. Setting the sensitivity is
possible on the PCB 86279 using the jumpers JP1 ... JP5 [2].
Sensitivity
JP1
JP2
JP3
JP4
JP5
High
(ca.
150
mV)
0 0 0 0 0 0
=
open Factory default setting
Low (ca. 500 mV)
1
1
1
1
1
1 = closed
Control Indicators
F1 ... F4:
FAULT-LEDs (red) – light whenever the corresponding monitored power amp ceases operation
FSP:
FAULT-LED (red) – lights whenever the spare amp fails to operate
Fault-Message Outputs (FAULT AMP)
F1 – F4 / FSP:
Control (switched) outputs and control indicators F1 - F4 and FSP are in their functioning
identical. They can be operated with a max. power rating of 200 mA a24V.
CFS:
COLLECTING FAULT SIGNAL is a collective fault-message, i.e. the CFS-output is active
when one of the four monitored power amps fails to operate. The output can be operated
with a max. power rating of 200 mA a24V.
[2]
Summary of Contents for PROMATRIX System
Page 1: ...Reference Manual...
