Alcatel Carrier Internetworking Solutions Switch/Router 用户手册

Page 3-22

The Omni Switch/Router currently supports the following Wide Area Network (

WAN

) 

modules:

•

WSX-S-2W

Provides two serial ports that support Frame Relay or 

PPP

.

•

WSX-SC

Provides four or eight serial ports that support Frame Relay or 

PPP 

with data compression

.

•

WSX-FT1/E1-SC

Provides o

ne or two 

T1

/

E1

 ports and one or two serial ports that 

support Frame Relay or 

PPP with data compression

.

•

WSX-BRI-SC

Provides o

ne or two Universal Serial Ports (

USPs

) ports and one or two 

ISDN-BRI

 ports that support Frame Relay or 

PPP with data compression

.

A 

WSX 

switching module is actually a submodule, or daughtercard, that attaches to an Omni 

Switch/Router High-Speed Module (

HSX

). The 

HSX

 contains 

RISC

 processors, 

RAM

 for holding 

software image files, 

ASICs

 for performing switching, and Content Addressable Memory (

CAM

) 

for storing 

MAC

 addresses. You plug your cable into the 

WSX

 submodule, but it is the 

HSX

 

module that connects to the switch’s backplane.

The figures and tables on the following pages illustrate the pinouts used on Omni 
Switch/Router 

WAN

 modules. Please note that the signal commonly knows as “remote loop-

back” (

LL

) is not supported on the 

WAN

 serial port (see WAN Serial Port Specifications on 

page 3-25). In addition, CTP2, CTP1, and CTP0 are assigned to CS(B), DR(B), and CD(B), 
respectively, on the serial port. The later are not used in the cable configurations that require 
the former.

See Appendix B, “Custom Cables,” for information on cables used to connect the serial 
connector to different interface types.