Data Sheet
© 2008-2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
Page 7 of 10
DSL specifications
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ST-Microelectronics 20190 chipset
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Supports ADSL over basic telephone service with Annex A and Annex B ITU G.992.1
(ADSL), G.992.3 (ADSL2), and G.992.5 (ADSL2+)
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G.994.1 ITU G.hs
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Complies with T1.413 ANSI ADSL DMT issue 2
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DSL Forum TR-067
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The chipset does not provide interoperability with carrierless amplitude
modulation/phase modulation (CAP)-based ADSL lines.
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Annex A and Annex B are supported starting with Cisco IOS Software Release
12.4(4)T.
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The ADSL2 standard (ITU G.992.3) adds new features and functions targeted at
improving ADSL performance and interoperability. In addition, the standard adds
support for new applications, services, and deployment scenarios. Among the
changes are improvements in data rate and reach performance, rate adaptation,
improved diagnostics, and power enhancements. The conventional ADSL standard
(ITU G.992.1) provides downstream data rates of up to 8 Mbps and upstream data
rates of up to 0.8 Mbps, and ADSL2 provides higher downstream rates of up to 12
Mbps and upstream data rates of up to 1 Mbps.
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The ADSL2+ standard (ITU G.992.5) doubles the bandwidth used for downstream
data transmission, effectively doubling the maximum downstream data rates and
achieving downstream data rates of up to 24 Mbps and upstream data rates of up to
1.5 Mbps.
Wireless Specifications
Data rates supported
1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, and 54 Mbps
Receive sensitivity
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802.11b
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-94 dBm @ 1 Mbps
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-93 dBm @ 2 Mbps
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-92 dBm @ 5.5 Mbps
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-90 dBm @ 11 Mbps
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802.11g
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-92 dBm @ 6 Mbps
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-90 dBm @ 9 Mbps
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-89 dBm @ 12 Mbps
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-87 dBm @ 18 Mbps
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-85 dBm @ 24 Mbps
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-81 dBm @ 36 Mbps
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-76 dBm @ 48 Mbps
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-73 dBm @ 54 Mbps
Maximum transmit power
Note: Maximum power setting is subject to change by channel and by region, depending
on regulations.
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802.11b: average 80 mW (19 dBm), peak (FCC) 245 mW (23.9 dBm)
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802.11g: average 50 mW (17 dBm)
Immunity
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IEC 61000-4-2:1995 Immunity to Electrostatic Discharges
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IEC 61000-4-3:1995 Immunity to Radio Frequency Electromagnetic Fields
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IEC 61000-4-4:1995 Immunity to Electrical Fast Transients
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IEC 61000-4-5:1995 Immunity to Power Line Transients (Surges)
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IEC 61000-4-6:1996 Immunity to Radio Frequency Induced Conducted Disturbances
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IEC 6100-4-8: 1003 Immunity to Power-Frequency Magnetic Fields (N/A for most
Cisco equipment)
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IEC 61000-4-11:1995 Immunity to Voltage Dips, Voltage Variations, and Short
Voltage Interruptions
Physical dimensions and weight
Product dimensions:
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W x D x H = 10.578 x 8.289 x 1.719 in. (268.68 x 210.54 x 43.66 mm) (nonwireless
models)
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W x D x H = 10.578 x 8.65 x 1.719 in. (268.68 x 219.72 x 43.66 mm) (wireless
models with antenna connectors, excludes antennae)
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Weight: 3.0 lb (1.36 kg) maximum
Power
Product power specifications:
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AC input voltage: 100 to 240 VAC
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Frequency: 50 to 60 Hz
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Maximum output power: 26W
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Output voltages: 5 and 12V
