Connecting the FXS Analog Lifeline
The device supports Analog Lifeline. If the device loses power, for example, due to a power outage or the unplugging of its power cable, it automatically routes calls from a POTS telephone ("lifeline" phone), connected to an FXS port, to the PSTN (instead of the IP network).
The Lifeline is provided by FXS Port # 1. This port connects to the analog POTS phone and the PSTN / PBX using a splitter cable (not supplied). The Lifeline splitter connects pins 1 and 4 to another source of an FXS port, and pins 2 and 3 to the POTS phone.
| ● | The lifeline splitter cable is a separate orderable item. |
| ● | Analog Lifeline cabling is applicable only if the device is ordered with FXS interfaces. |
| ● | The number of supported Lifelines depends on the device’s hardware configuration. For the combined FXS/FXO configuration, one Lifeline is available; for the 12-FXS configuration, up to three Lifelines are available. |
Cable specifications:
| ■ | Cable: Splitter cable with RJ-11 connector on one end and two RJ-11 jacks (plugs) on the other end |
| ■ | Connector Type: RJ-11 |
| ■ | Connector Pinouts: |
RJ-11 Connector Pinouts for FXS Lifeline
RJ-11 Connector Pinouts for FXS Interface
|
Pin |
Description |
|---|---|
|
1 |
Not connected |
|
2 |
Ring |
|
3 |
Tip |
|
4 |
Not connected |
| ➢ | To cable the FXS Lifeline: |
| 1. | Connect the lifeline splitter to FXS Port 1. |
| 2. | On the lifeline splitter cable, do the following: |
| a. | Connect the analog telephone to Port A. |
| b. | Connect an analog PSTN line to Port B. |
Cabling FXS Lifeline
