Connecting A Serial Device - Cisco 805 Hardware Installation Manual

Installing the Router

Connecting a Serial Device

You can connect any one of several serial devices to the router serial port. For more
information, see the "DTE or DCE" section in Appendix A, "Selecting a Serial Cable."
Table 2-2 describes the devices most commonly connected to the router serial port and how
these devices are used.
Table 2-2 Connecting a Serial Device
Serial Device
Asynchronous modem Asynchronous dial-up
Channel service
unit/data service unit
(CSU/DSU)
Note
ordering the serial cable, refer to Appendix A, "Selecting a Serial Cable."
Follow the steps in Figure 2-5 to connect a modem or CSU/DSU.
Caution
which specifies that the router must communicate for 1/2 hour after a power
failure. If a power failure occurs, the Cisco 805 router stops communicating with
other devices.
2-10
Cisco 805 Router Hardware Installation Guide
WAN Options
line
• Synchronous leased
line
• Frame Relay
• X.25
A serial cable does not ship with the router. For information on selecting and
The Cisco 805 router does not support the Australian IUT requirement,
WAN Encapsulation
(Framing)
Point-to-Point Protocol
(PPP)
• For synchronous leased
line: High-Level Data
Link Control (HDLC) or
PPP
• Frame Relay
• X.25
Network Type
• Remote office to corporate office
• Small office to Internet service
provider (ISP)
• Remote office to corporate office
• Small office to ISP