B
SB6141 DOCSIS 3.0 Cable Modem •
User Guide
16
582613-001-a
Upstream
Modulation
QPSK and 8, 16, 32, 64, 128 QAM
Maximum Channel Rate*
DOCSIS
131.072 Mbps (4 channels) / 32.768 Mbps (single channel): @ 128 QAM at 6.4 MHz
EuroDOCSIS
131.072 Mbps (4 channels) / 32.768 Mbps (single channel): @ 128 QAM at 6.4 MHz
Channel Width
200 kHz, 400 kHz, 800 kHz, 1.6 MHz, 3.2 MHz, 6.4** MHz
Symbol Rates
160, 320, 640, 1280, 2560, 5120** ksym/s
Operating Level Range
Level range per channel (Multiple Transmit Channel mode disabled, or only Multiple
Transmit Channel mode enabled with one channel in the TCS)
DOCSIS/EuroDOCSIS
TDMA
Pmin to +57 dBmV (32 QAM, 64 QAM)
Pmin to +58 dBmV (8 QAM, 16 QAM)
Pmin to +61 dBmV (QPSK)
S-CDMA
Pmin to +56 dBmV (all modulations), where:
Pmin = +17 dBmV, 1280 kHz modulation rate
Pmin = +20 dBmV, 2560 kHz modulation rate
Pmin = +23 dBmV, 5120 kHz modulation rate
Level range per channel (two channels in the TCS)
TDMA
Pmin to +54 dBmV (32 QAM, 64 QAM)
Pmin to +55 dBmV (8 QAM, 16 QAM)
Pmin to +58 dBmV (QPSK)
S-CDMA
Pmin to +53 dBmV (all modulations), where:
Pmin = +17 dBmV, 1280 kHz modulation rate
Pmin = +20 dBmV, 2560 kHz modulation rate
Pmin = +23 dBmV, 5120 kHz modulation rate
Level range per channel (three or four channels in the TCS)
TDMA
Pmin to +51 dBmV (32 QAM, 64 QAM)
Pmin to +52 dBmV (8 QAM, 16 QAM)
Pmin to +55 dBmV (QPSK)
S-CDMA
Pmin to +53 dBmV (all modulations), where:
Pmin = +17 dBmV, 1280 kHz modulation rate
Pmin = +20 dBmV, 2560 kHz modulation rate
Pmin = +23 dBmV, 5120 kHz modulation rate
Output Impedance
75
Ω
(nominal)
Frequency Range
DOCSIS 5-42 MHz (edge to edge), EuroDOCSIS and optional
DOCSIS 5 to 65 MHz (edge to edge)
Compatibility
PC: 90496, Pentium, or later; Windows 7, Vista, 2000, or XP or Linux
®
with Ethernet
connection (older versions of Windows, although not specifically supported, will work
with this cable modem)
Macintosh: Power PC or later; OS 10.4 or higher, Ethernet connection
UNIX: Ethernet connection
