Cisco Systems 1800 User Manual

Connect the router power cord to a 15A, 120 VAC power source or 10A, 240 VAC power source.

This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the 
protective device is rated not greater than: 15A, 120VAC (10A, 240VAC). Statement 1005

The input voltage tolerance limits for AC power are 85 and 264 VAC.

You are ready to power up the Cisco 1841 router after the following steps are completed:

Chassis is securely mounted and grounded. (See the “Install Chassis” section on page 4.)

Power and interface cables are connected. (See the “Connecting Cables” section on page 12.)

Make sure that the external CompactFlash memory card is properly seated into the slot. For installation instructions, refer 
to the online Cisco 1800 series hardware installation documentation at the following URL:

PC with terminal emulation program is connected to the console port, powered up, and configured for 9600 baud, 8 data 
bits, 1 stop bit, no flow control, and no parity.

Suitable PC COM port is selected in the terminal emulation program.

For initial power up, a direct console connection is recommended. After the initial configuration is completed, a remote 
modem connection can be used for router management.

To ensure adequate cooling, never operate the router unless the cover and all modules and cover plates are installed.

To prevent damage to the ejector mechanism, the ejector button next to the CompactFlash memory card must 
remain fully seated when not being used to eject a CompactFlash memory card.

To power up your Cisco 1841 router and verify that it goes through its initialization and self-test, perform this procedure. When 
the procedure is finished, the Cisco 1841 router is ready to configure.

To view the boot sequence, you must have a console connection to the Cisco 1841 router before it powers up.

Make sure that your PC is powered up and connected as described in the “Checklist for Power Up” section on page 14.

Move the power switch to the ON position. The SYS PWR LED on the front of the chassis blinks green and the fans 
operate. If this does not happen, refer to the "Troubleshooting" module in the online Cisco 1800 series hardware 
installation documentation at the following URL: