TRENDnet TVP- 221H Application 1 Special FXS Connections, Site A, w/ CO Trunk, Normal FXS, Site B

TVP-221H User’s Guide

Application 1: Special FXS Connections

The following diagram illustrates two different types of connections. The SITE A FXS Connection shows the normal connection between a gateway and telephone set (POTS) or FAX machine. The other type of FXS connection is shown on SITE B, on the right hand side. The Connection between the gateway and PBX has a special CO trunk interface card. The telephone sets connected to PBX can be either POTS or digital telephone depending upon the PBX capability.

TVP-224HR

Site A	Site B
TVP-221H
	FXS Connection
	w/ CO Trunk
Normal FXS	Interface Card
Connection

Application 2: FXO Connections

Application 2 has three possible connections. One Site A, the FXS connection to analog devices is normal and is identical to connections mentioned in Application

1.On Site B, the connection between PSTN and PBX is also a normal connection. The last connection is between PBX and the gateway which uses the internal analogue lines of the PBX. In this case, the FXO port has to be used.

Note: If a digital PBX is used, an analog terminal adapter is needed to provide an analog interface to the FXO port. Please consult with your PBX supplier.

In this application, the caller on Site A, can make a call using a device connected to a FXS port on the Site A gateway. The call will be routed to the Site B Gateway, through a FXO port and passed on to the PBX system. The PBX system will then forward the call to the dedicated terminal / extension.

TVP-224HR	Site B
Site A	Normal
TVP-221H	FXO Connection
Normal FXS
Connection

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