Power Failure Transfer Unit (Pftu) - STARPLUS Triad 1 Product Description Manual

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Chapter 11 - Triad 3 System Configuration

Power Failure Transfer Unit (PFTU)

The optional PFTU is installed on the MISU board.
The PFTU provides the transfer of up to six CO lines to six stations.
A selector switch provides manual switchover of the CO lines.
The controls are connected to the BKSU backplane.
Figure 11-30: PFTU (Power Failure Transfer Unit)
Optional Units