SURFboard Cable Modem Installation Manual
Appendix A
Specifications
Downstream
Modulation
64 QAM or 256 QAM
Data rate
38 Mbps maximum (limited by such factors as customer provider
equipment (CPE) and service provider restrictions)
Frequency
88 MHz to 860 MHz (30 kHz minimum step size)
Bandwidth
6 MHz
Symbol rate:
64
QAM
256
QAM
5.069 Msym/s maximum
5.361 Msym/s maximum
Operating level
-15 dBmV to +15 dBmV
Input impedance
75 ohms nominal
Upstream
Modulation
16 QAM or QPSK (variable symbol rates)
Transmission rate
30 Mbps maximum
Bandwidth
200 kHz to 3200 kHz
Frequency
5 MHz to 42 MHz (edge to edge)
Symbol rates
160, 320, 640, 1280, and 2560 ksym/s
Operating levels:
16
QAM
QPSK
+8 dBmV to +55 dBmV
+8 dBmV to +53 dBmV
Output impedance
75 ohms nominal
General
Data protocol
TCP/IP
Interface to PC
Ethernet 10/100Base-T and USB
Power
Approximately 9 Watts (+12VDC)
Power adapter input
North America:
105 to 125 Vac, 60 Hz
International:
100 to 240 Vac, 50 to 60 Hz
Dimensions
6.2” H x 2.3” W x 6.0” L
Operating temperature
0 to +40º C
Storage temperature
-30º C to +80º C
Operating humidity
0% to 95% RH, non-condensing
Содержание SB5100 - SURFboard - 38 Mbps Cable Modem
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