Vanguard Managed Solutions 342 installation manual DSL/Cable Modem

Target Applications

DSL/Cable Modem

Introduction	The Vanguard 342 enables connectivity to high-speed broadband services such as
	DSL and Cable by connecting the 10/100BaseT port on the Vanguard 342 to the
	Ethernet port on the DSL or Cable modem.

Cable modem speeds vary in the downstream direction. Network speeds can reach 27 Mbps., but this is an aggregate amount of bandwidth that is shared by users. Few computers will be capable of connecting at such high speeds, so a more realistic number is 1 to 3 Mbps. In the upstream direction speeds can be up to 10 Mbps. Most modem producers have selected a more optimum speed between 500 Kbps and 2.5 Mbps.

Remote Branches

Head Office

PBX

		LAN 2	LAN 1
10/100				DSL/Cable	VANGUARD
				Modem
	auto-sensing

342 6435

	HR and
Sales,	Finance

Marketing,

Engineering

Figure 1-7. LAN Over WAN (DSL/Cable Modem)

1-16 About the Vanguard 342