User guide

Overview of the Cisco 2500 Series Access Server 1-3
Access Server Services
Figure 1-1 Cisco 2500 Series Access Server (Model 2511 Shown)
Access Server Services
The access server connects terminals, printers, modems, microcomputers, and remote
LANs over asynchronous serial lines to an internetwork. The access server uses a set of
connection services to allow remote networks access to an internetwork of LANs and
WANs.
The access server supports four types of server operation:
• Remote node services
• Terminal services
• Asynchronous routing services
• Protocol translation services
Remote Node Services
Remote node services support remote network connectivity with Serial Line Internet
Protocol (SLIP), Point-to-point Protocol (PPP), AppleTalk Remote Access Protocol (ARA
protocol), and XRemote.
DB-15
DB-60
RJ-45
On/off
switch
Power
H3540
SCSI II 68-pin