Appendix A: Cable Modem Specifications - Cables to Go DOCSIS Cable Modem User Manual

Appendix A: Cable Modem Specifications

Table 4. RF Downstream Specification
PARAMETER
Center Frequency
Level Range
Symbol Rate
Bandwidth
Total Input Power
Input Impedance
Input Return Loss
Table 5. RF Upstream Specification
PARAMETER
Frequency
Level Range
Modulation
Symbol Rate
Bandwidth
Output Impedance
Output Return Loss >6 dB
VALUE
91 MHz to 857 MHz +/- 30 kHz
-15 dBmV to +15 dBmV
5.056941 Msym/sec (30 Mbps)
5.360537 Msym/sec (43 Mbps)
6 MHz
<30 dBmV
75 Ohms
>6 dB
VALUE
5 MHz to 42 MHz
+8 to +58 dBmV
+8 to +55 dBmV
QPSK and 16QAM
320K,640K,1280K,2560K,5120Kbps
640K,1280K,2560K,5120K,10240Kbps
200K, 400K, 800K, 1600K,
and 3200 KHz
75 Ohms
DOCSIS 1.0/ 1.1 Equivalent Cable Modem
One Channel
64QAM
256QAM
88 MHz to 860 MHz
Edge to Edge
QPSK
16QAM
QPSK
16QAM
At Edges
5 MHz to 42 MHz
NOTES
NOTES
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