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OfficeServ 7100 Installation Manual
© SAMSUNG Electronics Co., Ltd. 3-13
3.4 Connecting Power Fail Transfer
4TRM and 4SLM option boards do not support Power Fail Transfer function.
If AC power is fails while battery is not connected, connect a power fail transfer circuit by
connecting C.O. lines to extensions. If a pair of trunk lines(8TRK) is connected to pin1 and
pin2 of the first port in 16SLI2 or 8SLI, the lines are connected to a typical phone through
Pin 4 and 5 in 8TRK. In power failure, emergency calls can be available since the C.O. line
is directly connected to the phone by the internal relay operation.
Figure 3.13 Connecting Power Fail Transfer to a 16SLI2/8SLI Board