CHAPTER 5 Cabling the Device
MP-1288 | Hardware Installation Manual
Lifeline interface providing the connection to the PSTN / PBX. For example, for FXS connector
labeled FXS 1-24, channel 1 is the Lifeline extension and channel 25 is the Lifeline interface for
the PSTN / PBX.
The cable specifications for the FXS Lifeline include the following:
■
Cable: For optional cable types, see
■
Connector Type: 50-pin Telco
Figure 5-15: 50-pin Telco Connector for FXS Lifeline
■
Connector Pinouts:
Table 5-3: 50-pin Telco Connector Pinouts for FXS Lifeline
Telco
Connector
Pins
Description
1/26
Connects to FXS Lifeline extension
25/50
Connects to PSTN / PBX (Lifeline interface)
For all the connector's pinouts, see
➢
To cable FXS Lifeline per FXS connector:
1.
See
on page 22 for connecting the 50-pin Telco connector to the
FXS blade and for connecting it to a distributional panel.
2.
Once you have performed Step 1, connect the lifeline as follows:
●
Connect Port #1 to the FXS extension (e.g., telephone).
●
Connect Port #25 to the PSTN / PBX (Lifeline interface).
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