3Com 3C892 manual Application Sharing over the LAN, Lan

18CHAPTER 2: ISDN LAN MODEM FUNCTIONALITY DESCRIPTION

WAN Side Connection

Two Separate Connections to Different Locations.

OfficeConnect®

ISDN LAN Modem

										3 Com
Alert	PWR	ISDN	B1	B2	Tx	Coll	1	2	3	4

Figure 5 ISDN LAN Modem Single Workstation Connection Example

Application Sharing over the LAN

Most operating systems such as Windows 98 and 95 and Macintosh provide the capability for users on the LAN to share applications, files and printers among computers. For example, if only one computer has a Web browser, the other users on the LAN can use that Web browser to access the Internet. Note that speed will likely be reduced when applications are shared. Refer to your operating system documentation for instructions on setting up sharing between users on a LAN.

The ISDN LAN Modem allows users to connect to a WAN using either of the following methods at one time.

■Two separate connections to two different locations (one per B channel)

■One high-speed Multilink PPP connection to a single location (combines both B channels)

Once a WAN connection is established, up to 25 users can share that connection and access the same location simultaneously. If you desire, you can also restrict access to certain users.

An ISDN BRI line has two B channels for transmitting data or voice. Because each B channel is independent, you can connect to two different locations. Once the connection is established, up to 25 users can share either connection. Figure 6 shows one user connecting to a remote office LAN while another connects to the Internet.

Greg's PC

Marcia's PC

			Internet/Intranet or
			online service
			Greg
			64 Kbps B1	Remote office
			Peter
OfficeConnect®				LAN
			64 Kbps B2
ISDN LAN Modem
		Greg—64 Kbps B1
			Public telephone
Alert PWR ISDN B1 B2Tx Coll 1 2 3 4	OfficeConnect™3 Com	Peter— 64 Kbps B2
	ISDN LAN Modem
LAN STATUS

network

ISDN BRI line

Peter's PC

Jan's PC

Figure 6 Two Simultaneous Remote Connections to Different Locations