Cisco CPA2501 User Manual page 48

Connecting to a Network
Step 3
Figure 3-13
Serial transition
EIA/TIA-232, EIA/TIA-449, V.35,
X.21, or EIA-530 connector
3-16 Router Installation and Configuration Guide
If you will be using AutoInstall to configure the router, connect the synchronous
serial port (DB-60) to a CSU/DSU or other DCE device, as shown in
Figure 3-13. If you do not plan to use AutoInstall (or you are not sure what
AutoInstall is) do not connect the WAN cable until after you have configured the
router.
If a WAN cable is connected when you power ON the router for the first time, it
will attempt to run AutoInstall to download a configuration file from a TFTP
server. It can take several minutes for the router to determine that the necessary
files are not in place for AutoInstall to begin. For more information about
AutoInstall, refer to the Cisco IOS configuration guide, which is available on the
documentation CD that accompanied your router.
The synchronous serial port supports the following signaling standards:
Note
EIA/TIA-232, EIA/TIA-449, V.35, X.21, and EIA-530.
Connecting a CSU/DSU or Other DCE Device
TOK EN RING
cable
Synchronous serial
port (DB-60)
CSU/DSU or
other DCE
Router