Руководство по эксплуатации Cisco Systems CISCO851W-

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Data Sheet
Cisco 850 Series Integrated Services Routers
for Small Offices
®
The Cisco 850 Series of secure broadband and wireless routers is part of the Cisco
Integrated Services Router portfolio. Designed for small offices, the routers provide
secure WAN connectivity with optional integrated 802.11b/g WLANs in a single device.
Easy setup allows the Cisco 850 Series to be deployed at small remote offices and small
businesses, and remote management features enable IT managers and servic

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Data Sheet Table 1 lists the routers that currently make up the Cisco 850 Series. Table 1. Cisco 850 Series Models Models WAN Interface LAN Interfaces 802.11b/g Cisco 851 10/100 Mbps Fast Ethernet 4-port 10/100 Mbps switch No Cisco 851W 10/100 Mbps Fast Ethernet 4-port 10/100 Mbps switch Yes Cisco 857 ADSL 4-port 10/100 Mbps switch No Cisco 857W ADSL 4-port 10/100 Mbps switch Yes Figure 2. Deployment Scenarios Applications Cisco 850 Series routers are ideally suited for small off

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Data Sheet Features and Benefits Table 2 lists the features and benefits that the Cisco 850 Series provides. For additional product details of the 850 Series ISR, go to the 800 Series Q&A site located at http://www.cisco.com/en/US/prod/collateral/routers/ps380/ps6200/prod_qas0900aecd8028a982.ht ml. Table 2. Features and Benefits of the Cisco 850 Series Feature Benefit Stateful Inspection Firewall Provides secure access when connecting to the Internet or connecting small offices to a a

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Data Sheet routers are suitable for deployment in small businesses or remote offices by value-added resellers, enterprise IT managers, or service providers. Product Specifications Tables 3 and 4 list software and hardware features of Cisco 850 Series routers. Table 3. Software Features of the Cisco 850 Series Feature Description ● Routing Protocols and Routing Information Protocol (RIPv1 and RIPv2) General Router Features ● Layer 2 Tunneling Protocol (L2TP) ● Network Address Trans

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Data Sheet Table 4. WLAN (Cisco 851W and 857W) Features of the Cisco 850 Series Feature Description ● WLAN Hardware 802.11b/g ● Automatic rate selection for 802.11b/g ● External antenna (cannot be removed) ● Indoor range: 1 Mbps @ 320 ft ● WECA interoperability ● Default antenna gain: 2.2 dBi ● WLAN Software Features Maximize throughput or maximize range option ● Software configurable transmit power ● SSID Globalization ● WLAN Security Features 802.1X ● 802.11i ● Wi-Fi

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Data Sheet Feature Description ● Receive Sensitivity 802.11b ◦ -94dBm @ 1 Mbps ◦ -93dBm @ 2 Mbps ◦ 9-2dBm @ 5.5 Mbps ◦ -90dBm @ 11 Mbps ● 802.11g ◦ -92dBm @ 6 Mbps ◦ -90dBm @ 9 Mbps ◦ -89dBm @ 12 Mbps ◦ -87dBm @ 18 Mbps ◦ -85dBm @ 24 Mbps ◦ -81dBm @ 36 Mbps ◦ -76dBm @ 48 Mbps ◦ -73dBm @ 54 Mbps Maximum Conducted Note: Maximum power setting subject to changes by channel & by region depending on Transmit Power regulations ● 802.11b Average: 80mW (19dBm), Peak (FCC): 245mW (2

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Data Sheet Feature Description ● Environmental Operating Nonoperating temperature: -4 to 149°F (-20 to 65°C) Range ● Nonoperating humidity: 5 to 95 percent relative humidity (noncondensing) ● Nonoperating altitude: 0 to 15,000 ft (0 to 4570m) ● Operating temperature: 32 to 104°F (0 to 40°C) ● Operating humidity: 10 to 85 percent relative humidity (noncondensing) ● Operating altitude: 0 to 10,000 ft (0 to 3000m) DSLAM Interoperability Table 6 lists the Cisco supported DSLAMs (Di

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Data Sheet To download the latest Cisco SDM software, visit http://www.cisco.com/go/sdm. Service and Support Cisco offers a wide range of services programs to accelerate customer success. These innovative services programs are delivered through a unique combination of people, processes, tools, and partners, resulting in high levels of customer satisfaction. Cisco services can help you protect your network investment, optimize network operations, and prepare your network for new applicati