Alcatel Carrier Internetworking Solutions Switch/Router ユーザーズマニュアル

Page 28-7

The WAN switching modules support both Frame Relay and synchronous Point-To-Point 
Protocol (PPP). For ISDN signalling protocols, the modules support D-channel signalling (see 
Chapter 32, “Managing ISDN Ports.” For more details on implementing these protocols, see 
Chapter 29, “Managing Frame Relay,” and chapter 30, “Point-to-Point Protocol.”

This section provides several examples of the types of WAN networking possible using WAN 
switching modules.

In a typical configuration, the 

WSX

 occupies either a slot in a switch chassis or a submodule 

in an OmniAccess 512. Because it is compatible with Omni Switch/Router any-to-any 
switching and 

VLAN

 architecture, you can switch other topologies in the 

LAN

 to Frame Relay 

or PPP. The 

WSX

 connects to a 

DSU/CSU

 or T1 multiplexer through a serial cable. The 

following diagram shows a typical 

WSX

 setup using a 56 kbps Frame Relay line (up to 2 Mbps 

access rates are supported).

For serial ports, the 

WSX

 supports automatic detection of cable types. It also supports internal, 

external, and split clocking.