Cisco EPC3925, Техническое описание

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Data Sheet
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Specification Value
RF Downstream
Operating Frequency
Range
108 to 1002 MHz
Tuner Frequency Range 108 to 1002 MHz
Tuner (2) Frequency agile block tuners, 32 MHz bandpass each
Demodulation 8 demodulators, 4 per tuner, each demodulator; 64 QAM or 256 QAM
Maximum Data Rate 8 downstream channels, each 8 MHz channel:
● 55.62 Mbps for 256 QAM and 41.71 Mbps for 64 QAM
Bandwidth 8 or 6 MHz
Operating Level Range +43 to +73 dBµV for 64 QAM
+47 to +77 dBµV for 256 QAM
Input Impedance 75 ohms
RF Upstream
Operating Frequency
Range
5 to 65 MHz
Transmitter Frequency
Range
5 to 65 MHz
Upstream Transmission 4 upstream channels
Modulation QPSK, 8 QAM, 16 QAM, 32 QAM, 64 QAM / ATDMA, 128 QAM / SCDMA
Maximum Data Rate per
channel
Channel Raw
Modulation Bandwidth (MHz) Data Rate (Mbps)
QPSK 1.6 2.56
16 QAM 1.6 5.12
QPSK
3.2 5.12
16 QAM 3.2 10.2
32 QAM 3.2 12.8
64 QAM 3.2 15.4
16 QAM
6.4 20.5
32 QAM 6.4 25.6
64 QAM 6.4 30.7
Bandwidth 200 kHz to 6.4 MHz
Maximum Operating Level
TDMA
SCDMA
Modulation One Channel 2 Channels 3 or 4 Channels
QPSK +121 dBµV +118 dBµV +115 dBµV
8 QAM +118 dBµV +115 dBµV +112 dBµV
16 QAM +118 dBµV +115 dBµV +112 dBµV
32 QAM +117 dBµV +114 dBµV +111 dBµV
64 QAM +117 dBµV +114 dBµV +111 dBµV
QPSK +116 dBµV +113 dBµV +113 dBµV
8 QAM +116 dBµV +113 dBµV +113 dBµV
16 QAM +116 dBµV +113 dBµV +113 dBµV
32 QAM +116 dBµV +113 dBµV +113 dBµV
64 QAM +116 dBµV +113 dBµV +113 dBµV
128 QAM +116 dBµV +113 dBµV +113 dBµV
Electrical
Input Voltage 15 VDC
Power Consumption
(modem module) ~ 17 Watts
Data Ports GigE (Auto-negotiate with Auto-MDIX): RJ-45 Ethernet (4)
USB 2.0: USB Type 2 (1)
RF Female F-Type
Output Impedance 75 ohms