1-12
302693-B Rev 00
CMTS 1000 Installation Manual V1.2
RF Electrical Specifications
Downstream
RF channel spacing
6 MHz
Frequency range
88 to 860 MHz (band edges)
Modulation
64 QAM or 256 QAM
Symbol rate
5.056941 Msymbol/sec or 5.360537
Msymbol/sec
Information rate
27 Mbps or 38 Mbps
Forward error correction
Reed Solomon
Output signal range
50 to 61 dBmV
Return loss
14 dB
Transmit output power accuracy
1 dB
Output impedance
75 ohms
Upstream
RF channel spacing
Variable, 200 KHz to 3.2 MHz
Frequency range
5 to 42 MHz (band edges)
Modulation
QPSK or 16 QAM
Information rate
0.320 to 10.24 Mb/s without FEC
enabled
Forward error correction
Concatenation of Reed Solomon
Block Code and Trellis Code
Receive input level
-4 to 26 dBmV (operator
configurable)
Regulatory Specifications
UL, CSA, FCC B, EN60950, CE (pending)
Содержание CMTS 1000
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