Installation guide
Connecting the Router to the WAN
Cisco 1600 Series Router Hardware Installation Guide
2-10
Follow these steps to connect the Cisco 1601 to the WAN:
Step 1 Connect the cable DB-60 connector to the SERIAL Ø port on the Cisco 1601.
Step 2 Connect the other end of the cable to one of the following devices:
• Asynchronous modem that you provide if connecting to an analog telephone
line.
• Synchronous modem, DSU/CSU, or other data circuit-terminating
equipment (DCE) that you provide if connecting to a digital WAN line.
Step 3 Check the RDY LED on the rear panel. It lights when the router is correctly
connected to the modem or DSU/CSU. If the RDY LED is not on, refer to the
“Troubleshooting” appendix later in this guide.
Figure 2-5 Serial Connection—Cisco 1601
DO NOT INSTALL ANY WAN
MODULE WITH POWER ON
H7199
Router
Serial port (DB-60)
Serial transition
cable
RDY LED
DSU/CSU or
other DCE
EIA/TIA-232, EIA/TIA-449,
V.35, X.21, or EIA-530 connector
OK
WIC
OK
LNK
LNK