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Inverter 1
Inverter 2
OMA Point 1 of IOP-PDP
OMA Point 2 of IOP-PDP
IOP-PDP FBI Point
Power plant (Switching cubicle)
9.3.3.
OMA-Daisy Chaining
Alarm signals of Power failures in switching equipments like various suite
PDPs, IOP-PDP and DCDPs are daisy chained. Finally J32 pin of IOP-PDP
FBI card extends alarm which is basically - 48V GND signal to terminal
block TB1 of OMA panel (refer Fig. 9.4).
INSTALLATION MANUAL
Cable from
IOP - PDP AND OMA INSTALLATION
Terminal block
TB1 pin no.
3
Invertor Alarm
4
Invertor Alarm
5
-48V
6
Gnd
1
Switch Room Alarm
2
Power Room Alarm
Remarks
97
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