User manual

Release 2.0 Digium, Inc. Page 14
Chapter 1
Overview
The Analog 410 Series cards are versatile devices used for connecting
your phone network to the PSTN (Public Switched Telephone Network)
world. This is accomplished through phone lines connected to the FXO
(Foreign Exchange Office) ports and phones connected via the FXS
(Foreign Exchange Station) ports. The cards allow Asterisk software to
connect to your phone network, creating an office type telephony
environment.
There are a variety of applications where an Analog 410 Series card
(either the TDM410 or the AEX410) proves useful. An example is
provided in the following figure.
Figure 1: Sample Card Application