MediaPack SIP
MediaPack SIP User’s Manual 42 Document #: LTRT-65405
3.2.5.2 Cabling the MP-11x Lifeline
The Lifeline (connected to port #1) provides a wired analog POTS phone connection to any PSTN
or PBX FXS port when there is no power, or the when network connection fails. Users can
therefore use the Lifeline phone even when the MP-11x is not powered on or not connected to
the network.
The Lifeline’s Splitter connects pins #1 and #4 to another source of an FXS port, and pins #2 and
#3 to the POTS phone. Refer to the Lifeline Splitter pinout in Figure
3-18.
Figure
3-18: Lifeline Splitter Pinout & RJ-11 Connector
1 2 3 4
1 -
2 -
3 -
4 -
Lifeline Tip
Lifeline Ring
Tip
Ring
¾ To cable the MP-11x Lifeline, take these 3 steps:
1. Connect the Lifeline Splitter to port #1 on the MP-11x.
2. Connect the Lifeline phone to Port A on the Lifeline Splitter.
3. Connect an analog PSTN line to Port B on the Lifeline Splitter.
Note: The use of the Lifeline on network failure can be disabled using the
‘LifeLineType’ ini file parameter (described in Table 5-37 on page 128).