Cisco Systems uBR10-LCP2-MC16E Manual De Usuario

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Cisco uBR10-LCP2-MC16C/MC16E/MC16S Cable Interface Card for the Cisco uBR10012 Router
OL-2872-02
  Cisco uBR10-LCP2-MC16C/MC16E/MC16S Overview
The default modulations are:
64 quatrature amplitude modulations (QAM) for downstream.
quadrature amplitude phase-shift keying (QPSK) for upstream.
DOCSIS and EuroDOCSIS Data Rates and Modulation Schemes
Cisco cable interface line cards are configured in a number of different upstream combinations based on 
the card used, your cable network, and the anticipated subscription and service levels. 
 lists the 
data rates and modulation schemes for both DOCSIS and EuroDOCSIS standards.
Cisco uBR10-LCP2-MC16C
The Cisco uBR10-LCP2-MC16C cable interface line card output is +42 dBmV +/– 3 dB and supports 
all DOCSIS upstream channel widths described in 
. The card is configured identically to the 
Cisco uBR-MC16C cable interface line card.
Note
The configuration information for the Cisco uBR10-LCP2-MC16C is the same as the information for the 
Cisco uBR10-LCP2-MC28C/Cisco uBR-MC28C, except that there are fewer upstream and downstream 
ports. Refer to the configuration guides.
For Cisco IOS software requirements see the 
.
For configuration information, refer to Configuring the Cisco uBR-MC28C Cable Modem Card
available on the documentation CD-ROM and Cisco.com at the following URL:
Refer to the Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide at the 
following URL:
Table 2
DOCSIS and EuroDOCSIS Upstream Data Rates
Upstream Channel 
Width
Modulation 
Scheme
Baud Rate 
Sym/sec
Raw Bit Rate 
Mbit/sec
Throughput 
(Bit rate - Overhead) 
Mbit/sec
3.2 MHz
16 QAM(4)
QPSK (2)
2.56 M
10.24
5.12
9.0
4.6
1.6 MHz
16 QAM(4)
QPSK (2)
1.28 M
5.12
2.56
4.5
2.3
800 kHz
16 QAM(4)
QPSK (2)
640 k
2.56
1.28
2.3
1.2
400 kHz
16 QAM(4)
QPSK (2)
320 k
1.28
0.64
1.2
0.6
200 kHz
16 QAM(4)
QPSK (2)
160 k
0.64
0.32
0.6
0.3