3Com 4000 System Description

System Description 1-3
Figure 1-1 AccessBuilder 4000 Configuration Options
System Description The AccessBuilder 4000 series servers consists of hardware and
software that provides a cost-effective solution to your remote access
networking needs. Both the Ethernet and Token Ring versions offer the
same high performance RISC-based engine. Optional plug-in line
interface modules may be installed to provide connections to a variety
of WAN types. These interface modules include 4-port, 8-port, and
8-port high speed serial cards for connection to analog modems, a
4-port ISDN Basic Rate Interface (BRI) interface (U or S/T), and a high
speed synchronous interface for leased lines.
Connection to the LAN supports three Ethernet media types, 10BaseT,
BNC (thin), and AUI. A three-position switch selects the desired
interface connection. The Token Ring version supports 4 or 16 Mbps
ring speeds.
A console port preconfigured for 9600 bps is provided as a
convenience when:
■local configuration (using a dumb terminal or computer
communications emulation program) is desired, or
■remote software downloading is desired.
PC
PC
PC
net 1
Work StationWork Station
net 2
File Server
Work Station
LAN–to–LAN
LAN–to–LAN
Individual
to
LAN
Individual
to
LAN
StatusActivityPower
SYSTEM STATUSSYSTEM STATUS
AccessBuilderAccessBuilder40004000
Remote Access Server
StatusActivityPower
SYSTEM STATUSSYSTEM STATUS
AccessBuilderAccessBuilder40004000
Remote Access Server
ab4kbook Page 3 Thursday, March 27, 1997 11:51 AM