Version 6.6 17 April 2012
Hardware Installation Manual 2. MP-11x Hardware Installation
2.4.4 Connecting MP-11x to Analog FXS Lifeline Phone
The Lifeline provides a wired analog POTS phone connection to any PSTN or PBX FXS
port when there is no power or when the network connection fails. Therefore, you can use
the Lifeline phone even when MP-11x is not powered or not connected to the network.
The Lifeline feature is implemented as follows, depending on FXO/FXS support:
For devices providing only FXS ports: A single Lifeline connected to Port #1 using a
splitter (not supplied) is available.
For devices providing FXS and FXO ports: A splitter is not required - all FXS ports
are automatically connected to corresponding FXO ports (i.e., FXS Port #1 to FXO
Port #5, FXS Port #2 to FXO Port #6, and so on).
For devices providing only FXO ports: A Lifeline is not available.
Notes:
• The Lifeline feature is not supported by MP-112.
• The use of the Lifeline upon network failure can be disabled using the
LifeLineType ini file parameter (described in the User's Manual).
The Lifeline’s splitter connects pins #1 and #4 to another source of an FXS port, and pins
#2 and #3 to the POTS (FXS) phone. See the Lifeline splitter pinouts in the figure below:
Figure 2-12: RJ-11 Lifeline Splitter Connector Pinouts
To cable the MP-11x FXS Lifeline:
1. Connect the Lifeline splitter to Port #1 on MP-11x (the Lifeline splitter is a special order
option).
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.
Figure 2-13: Lifeline Cabling (Using Splitter Cable) for FXS-Only Devices
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