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Cisco 819 Integrated Services Router Hardware Installation Guide
OL-23125-02
Chapter 1 Product Overview
General Description
The Cisco 819 ISR is a standard form factor with a commercial operating range. The 3G Cisco 819 ISRs
support the 3G speeds (High-Speed PacketAccess Plus [HSPA+] enabling up to 4G speeds and Evolution
Data Optimized [EVDO Rev A]). They are backward-compatible with High-Speed Packet Access
(HSPA), Universal Mobile Telecommunications Service (UMTS), Enhanced Data Rates for Global
Evolution (EDGE), General Packet Radio Service (GPRS), and EVDO Rev 0/1xRTT.
The 4G LTE C819 supports the latest Third-Generation Partnership Project (3GPP) Release 8 LTE
standards. The Cisco 4G multimode LTE WWAN C819 provides persistent and reliable LTE connectivity
with fallback and transparent handoff to earlier technologies. The Cisco 819HG-4G and Cisco 819G-4G
support multimode 4G LTE and have embedded Sierra Wireless multimode modem.
The Cisco 819 ISR is a desktop form factor with built-in wall-mount features, floor mount, and DIN rail
mount features in selected SKUs. These routers are powered by an external AC power or optional DC
adapter.
Figure 1-1 shows the Cisco 819HG ISR.
Beginning with IOS release 15.2(4)M1, the new 3G Cisco 819HGW and Cisco 819HWD ISRs support
WiFi radios with a higher memory density and a new barrel-type power connector. A Wireless Local
Area Network (WLAN) implements a flexible data communication system frequently augmenting rather
than replacing a wired LAN within a building or campus. WLANs use radio frequency to transmit and
receive data over the air, minimizing the need for wired connections.
Figure 1-2 shows the Cisco
819HGW ISR.
The WLAN for 3G Cisco 819HGW and Cisco 819HWD ISRs have the following additional features:
• Dual 802.11 a/b/g/n radios
• External WiFi antenna
• WLAN LED
Note Cisco 819 is used to refer to Cisco 819HG, Cisco 819G, Cisco 819H, Cisco 819HGW, Cisco 819HWD,
Cisco 819HG-4G, and Cisco 819G-4G ISRs unless specifically called out otherwise.
Figure 1-1 Cisco 819HG Integrated Services Router
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