Patton electronic SmartNode 4110 Series ユーザーズマニュアル

Introduction

SmartWare Software Configuration Guide 

This chapter provides an overview of FXO interfaces and the tasks involved in configuring them. This chapter 
does not explain the basic configuration steps common to all Context Switch (CS) interfaces. Information 
about basic interface configuration can be found in chapter 33, 

An FXO, Foreign eXchange Office, interface connects to an FXS, Foreign eXchange Subscriber, interface. These two 
interfaces are used in analog telephony. The FXS interface is provided at the central office in order to connect to 
telephones, modems, PBXs, faxes, etc. Telephones and modems are FXO interfaces and want to connect to the 
central office. The FXO interface in the SmartNode products is like the telephone and modem interface. 

In SmartWare, an FXO interface functions to connect the analog FXO port’s call signaling to the call control 
process in SmartWare. Recall that an interface in SmartNode products is a logical device and a port is a physical 
device. So the FXO feature consists of the logical interface with all its processes together with its configurable 
parameters and the physical interface for the actual analog, 2-wire connection to an FXS device. There is a one-
to-one correspondence between the port and the interface. 

In order for the interface to be able to make a connection over the 2-wire analog line, there must be a port bound 
to the interface (see 

). For more information on ports, interfaces, and binding, see section 

 on page 47. For specific details on binding the FXO port to an FXO interface, see section 

Figure 58. FXO interfaces on the CS context

This chapter includes the following sections:

•

FXO services description (see 

)

•

Creating an FXO interface (see 

•

Deleting an FXO interface (see 

•

FXO interface configuration task list (see 

Context CS

FXO  Port

(physical)

FXO Interfaces

(logical)

“encapsulation cc-fxo”

and

"bind" commands

FXO  Port

(physical)