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Contents

v

Special Notices and Translations

Customer Information

Customer Response Card

Chapter 1. About the Vanguard 342

Vanguard 342 Description ............................................................................

Features and Functionality ...........................................................................

Target Applications .......................................................................................

Virtual Private Network ...........................................................................

Cost-effective VPN Solutions...............................................................

Hardware-based Encryption and Compression.....................................

Standard-based Tunneling and Encryption for IP Traffic .....................

Multi-protocol Tunneling and Encryption ............................................

Frame Relay and X.25 Encryption .......................................................

IP and Serial Protocols over Frame Relay ...............................................

Video and Serial Protocols over Public or Private Networks ..................

Branch Office to Central Office over Public or Private Networks ...........

SOHO and Branch Office to Central Office over ISDN ..........................

DSL/Cable Modem ..................................................................................

G.SHDSL Daughtercard ...........................................................................

LAN Segmentation ...................................................................................

Virtual LAN (VLAN) ...............................................................................

Clocking Limitations Vanguard 342 .............................................................

Chapter 2. Hardware Description

Enclosure ......................................................................................................

Motherboard .................................................................................................

Vanguard Daughtercards ..............................................................................

Chapter 3. Installation and Replacement

Checking Your Shipment Contents ..............................................................

Installing The Vanguard 342 ........................................................................

Selecting and Preparing the Installation Site ...........................................

Installing Your Vanguard 342 ...................................................................

Thermal Considerations ...........................................................................

Configuring the Serial Interface ...................................................................

Setting the Interface Type ........................................................................

Setting the Interface Options ....................................................................

Cabling the Vanguard 342 ............................................................................