Cables to Go DOCSIS Cable Modem, Руководство пользователя

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