Universal Broadband Router Hardware Installation Guide

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Cisco uBR10012 Universal Broadband Router Hardware Installation Guide
OL-18259-01
Chapter 1 Cisco uBR10012 Universal Broadband Router Overview
Cisco uBR10012 Router and Cisco IOS Software
Ta b l e 1-2 DOCSIS and EuroDOCSIS 2.0 Upstream Data Rates
Upstream Channel Width
Modulation Scheme,
bit/symbol
Baud Rate,
symbol/sec
Raw Bit Rate,
Mb/sec
Throughput (Bit Rate - Overhead),
Mb/sec
6.4 MHz 64-QAM
32-QAM
16-QAM
8-QAM
QPSK
5.12M 30.96
25.80
20.54
15.48
10.30
27.2
22.3
19.8
13.3
8.9
3.2 MHz 64-QAM
32-QAM
16-QAM
8-QAM
QPSK
2.56 M 15.48
12.90
10.30
7.68
5.12
13.3
11
8.9
6.6
4.4
1.6 MHz 64-QAM
32-QAM
16-QAM
8-QAM
QPSK
1.28 M 7.68
6.45
5.12
3.84
2.56
6.6
5.5
4.4
3.3
2.2
800 kHz 64-QAM
32-QAM
16-QAM
8-QAM
QPSK
640 K 3.84
3.20
2.56
1.92
1.28
3.3
2.75
2.2
1.65
1.1
400 kHz 64-QAM
32-QAM
16-QAM
8-QAM
QPSK
320 K 1.92
1.60
1.28
0.96
0.64
1.65
1.38
1.1
0.83
0.54
200 kHz 64-QAM
32-QAM
16-QAM
8-QAM
QPSK
160 K 0.96
0.80
0.64
0.48
0.32
0.83
0.63
0.54
0.40
0.27
Ta b l e 1-3 DOCSIS and EuroDOCSIS Downstream Data Rates
Downstream Channel Width,
MHz
Modulation Scheme,
bit/symbol
Baud Rate,
MSym/sec
Raw Bit Rate,
Mb/sec
Throughput (Bit Rate - Overhead),
Mb/sec
6 64 QAM (6)
256 QAM (8)
5.056
5.360
30.34
42.88
27
39
8 64 QAM (6)
256 QAM (8)
6.592
6.592
39.55
52.74
36
51