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The ADTRAN SR820ac Wireless Voice Gateway is the 3.0 Wireless Voice Gateway with stylish and elegant
outlook, designed for your home, home office, or small business/enterprise. It can be used in households
with one or more computers capable of wireless connectivity for remote access to the voice gateway.
This installation guide provides product overview and setup information for the SR820ac. It also provides
instructions for installing the voice gateway and configuring the wireless LAN, Ethernet, router, DHCP, and
security settings.
Standard Features
The SR820ac Wireless Voice Gateway combines high‐speed Internet access, networking, and computer
security for a home or small‐office LAN. It offers the following features:
Combination of five separate products in one compact unit — a DOCSIS® 3.0 cable modem,
IEEE 802.11a/b/g/n/ac wireless access point, Ethernet 10/100/1000 Base‐T connections,
VoIP Internet telephone connections, and firewall.
An integrated high‐speed cable modem for continuous broadband access to the Internet and
other online services with much faster data transfer than traditional dial‐up or ISDN
modems.
Advanced firewall for enhanced network security from undesired attacks over the Internet.
It supports stateful‐inspection, intrusion detection, DMZ, denial‐of‐service attack prevention,
and Network Address Translation (NAT).
One broadband connection for up to 252 computers to surf the web; all computers on the
LAN communicate as if they were connected to the same physical network.
Four 10/100/1000Base‐T Ethernet uplink ports supporting half‐duplex or full‐duplex
connections with auto‐MDIX capability.
An IEEE 802.11a/b/g/n/ac wireless access point to enable users to remain connected while
moving around the home or small office or to connect desktop computers without installing
network wiring. Depending on distance, wireless connection speeds can vary.
SR820ac wireless function supports Wi‐Fi 2.4GHz/5GHz dual‐band mode.
A secure Wireless Fidelity (Wi‐Fi) broadband connection for Wi‐Fi enabled devices on your
network, such as your mobile, laptops, tablet, printers, PDAs, and desktops.
Routing for a wireless LAN (WLAN) or a wired Ethernet LAN; you can connect more than four
computers using hubs and/or switches.
A built‐in DHCP server to easily configure a combined wired and/or wireless Class C private
LAN.
Virtual private network (VPN) pass‐through operation supporting IPSec, PPTP, or L2TP to
securely connect remote computers over the Internet.
SR820ac Configuration Manager (CMGR) which provides a graphical user interface (GUI) for
easy configuration of necessary wireless, Ethernet, router, DHCP, and security settings.
Overview
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