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Cisco Integrated Services Router Hardware Installation Guide
OL-27407-01
Chapter1 Product Overview Cisco 810 Series
Antennas
The Cisco 819 3G routers provide two standard panel-mount TNC connectors to support the 3G antenna
and the diversity and GPS external antenna. The main antenna is used for the primary 3G antenna. The
second can be used as a diversity receive only 3G antenna or GPS antenna that does not require power
supply from the router.
The Cisco 819 4G routers provide two standard panel-mount TNC connectors on the router front panel
for the main and diversity antennas. The main antenna connector is used for the primary 4G antenna. The
second antenna connector can be used as a diversity receive only 4G antenna. An SMA connector for
active GPS antenna is also available on the front panel of the router.
The Cisco 819HGW and Cisco 819HWD ISRs also support Cisco WiFi external antennas. See the
“Supported Cisco Antennas and Cables” section on page1-27 for more information.
WiFi External Antenna
The external WiFi antenna is used to support better WiFi coverage. All external antenna supports the
following:
•Dual 802.11 a/b/g/n radios
•2x3 MIMO
•Omnidirectional
Power Switch
The power switch shuts down the router. A power switch lock is available to prevent accidental turning
off of the router in the hardened SKUs.
Reset Button
The Reset button resets the router configuration to the default configuration set by the factory. To restore
the router configuration to the default configuration set by the factory, use a standard size #1 paper clip
with wire gauge 0.033 inch or smaller and simultaneously press the reset button while applying power
to the router.
LEDs
The LEDs are located on the front panel of the router. Table 1 -8 describes the 3G LEDs for the Cisco
819 ISR.
Table1-8 3G LED Descriptions
LED Color Description
SYS Yellow FPGA download is complete.
Green (blinking) ROMMON is operational.
Green (solid) IOS is operational.
Green (four blinks
during bootup) Reset button has been pushed during the bootup.
Off After powering up, when FPGA is being downloaded (in
ROMMON).