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Cisco 819 Integrated Services Router Hardware Installation Guide
OL-23125-02
Chapter 1 Product Overview
Hardware Features
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 page 1-19 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
LED indicators for
the platform
Yes Yes Yes
Onboard crypto
acceleration
Yes Yes —
Power cord retention
lock
— Yes Yes
Power switch lock — Yes Cisco 819HG-4G ISRs only
Reset button Yes Yes Yes
Real Time Clock
(RTC)
1
Yes Yes Yes
ScanSafe Yes Yes —
Single console/AUX
port
Yes Yes Yes
SNMP Yes Yes —
TFTP support with
Ethernet WAN
interface
— Yes —
Warm reload Yes Yes —
1. A real-time clock (RTC) with battery backup provides date and time when the system is powered on. The RTC is used to verify the validity of the
Certification Authority stored on the router.
Table 1-4 Cisco 819 ISRs Platform Features (continued)
Platform Features
Cisco 819HG
Cisco 819G
(with 3G)
Cisco 819HGW
Cisco 819HWD
(with WiFi)
Cisco 819HG-4G
Cisco 819G-4G
(with 4G LTE)