3com 4000 Manual De Usuario
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.
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.
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:
convenience when:
■
local configuration (using a dumb terminal or computer
communications emulation program) is desired, or
communications emulation program) is desired, or
■
remote software downloading is desired.
PC
PC
PC
net 1
Work Station
Work Station
net 2
File Server
Work Station
LAN–to–LAN
LAN–to–LAN
Individual
to
LAN
Individual
to
LAN
Status
Activity
Power
SYSTEM STATUS
SYSTEM STATUS
AccessBuilder
AccessBuilder
4000
4000
Remote Access Server
Status
Activity
Power
SYSTEM STATUS
SYSTEM STATUS
AccessBuilder
AccessBuilder
4000
4000
Remote Access Server
ab4kbook Page 3 Thursday, March 27, 1997 11:51 AM