Cisco 819 User Manual

2-7
Cisco 819 Integrated Services Router Hardware Installation Guide
OL-23125-02
Chapter 2 Installing the Router
Installing the Router
Figure 2-2 Installing the Antenna
Step 2 Orient the antennas. For optimum wireless performance, antennas should be generally perpendicular to
each other.
Installing a WiFi External Antenna
This section describes how to install a WiFi external antenna.
Step 1 Install the lightning arrestor. For details in installing lightning arrestor, see Cisco Aironet Lightning
Arrestor (AIR-ACC245LA-R).
Step 2 Rotate the knurled portion of the WiFi external antenna clockwise to screw the antenna to the RP-TNC.
(See
Figure 2-3.)
Note WiFi antennas should be generally perpendicular to each other to achieve best coverage.
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Cisco 819 Specifications

General

Operating System	Cisco IOS
Authentication Method	RADIUS, TACACS+
Model	819
WAN Interfaces	1 x 10/100 Ethernet
LAN Interfaces	4 x 10/100 Ethernet
Wireless	802.11b/g/n
Security	Firewall, VPN
Power	AC adapter
Weight	2.2 lbs
Connectivity Technology	Wired, Wireless
Data Link Protocol	Ethernet, Fast Ethernet, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
Network / Transport Protocol	TCP/IP
Remote Management Protocol	SNMP, Telnet, HTTP, HTTPS
Features	VPN support, VLAN support, Quality of Service (QoS)
Encryption Algorithm	DES, 3DES, AES, SHA
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
RAM	256 MB
Flash Memory	256 MB
Ports	4 x Ethernet 10/100, 1 x console