About the Cisco UBR7200 Series: "Two-
to four-slot broadband, carrier-class routers. Designed
for cable operators and service providers, this series
connects residential subscribers for high-speed data,
broadband, and IP telephony" (Cisco - A Beginner's Guide Third Edition by Velte & Velte).
Product Description:
uBR2700 8MHz Modem Card, 1 Downstream, 6 Upstream
@5-65MHz.
The Cisco uBR-MC16E supports 256 QAM at 40 Mbps
downstream and 16 QAM at 5 Mbps upstream default data
rates. The Cisco uBR-MC16E supports all upstream channel
widths and the card output is +40 dBmV +/- 2 dB. The
Cisco uBR-MC16E supports the ITU J.83 Annex A physical
layer and the proposed EuroDOCSIS standard (ECR
RFI-R-98036) from Cable Labs.
The Cisco uBR-MC16E is designed to provide two-way data
over cable between a headend and EuroDOCSIS-compliant
cable modems and STBs in the 5 to 65 MHz downstream and
85 to 860 MHz upstream European PAL/SECAM 8 MHz channel
environments. While all other Cisco cable interface line
cards transmit downstream signals to upconverters using
a 44 MHz frequency, the Cisco uBR-MC16E transmits
downstream IF signals to an upconverter using the
36.125 MHz frequency.
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