Appearance - 3Com 3C13886 - Router OC-3 ATM SML Flexible Interface Card Installation Manual

3Com Router Module Guide
access and handle 1/2 channel(s) of analog voice signals over data communication
networks. The differences between FXS SIC and FXO SIC are listed below:
FXS SIC cards are analog subscriber line cards that provide ordinary analog
telephone and fax access and also can connect AT0 loop trunks of exchanges;
FXO SIC cards are loop trunk cards that provide access of common subscriber
lines of exchanges.
Caution:
While using FXS SIC/FXO SIC, you must ensure that the 3Com Routers can be connected to IP
networks or other WANs.

2.7.2 Appearance

Router 1-Port FXS/FXO SIC
Figure 2-25 Router 1-Port FXS/FXO SIC
Router 2-Port FXS/FXO SIC
Figure 2-26 Router 2-Port FXS/FXO SIC
Chapter 2 Smart Interface Cards
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