OfficeServ 7030 Installation Manual
4.3 Connecting the Power Fail Transfer
The 4TM and the Baseboards support the Power Fail Transfer function.
If the AC power fails while the UPS is not connected, connect a power fail transfer circuit
by connecting the C.O. lines to the extensions. If a pair of trunk lines (4TM) is connected
to Pin1 and Pin2 of the first port in the base board's SLI, the lines will be connected to a
phone through Pin 4 and 5 of the 4TM. During the power failure, emergency calls can be
available since the C.O. line is directly connected to the phone by the internal relay
operation.
Figure 4.4 Connecting the Power Fail Transfer
© SAMSUNG Electronics Co., Ltd.
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