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