Cisco EPC3925 Datasheet - Page 8
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Specification
Value
RF Downstream
Operating Frequency
108 to 1002 MHz
Range
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
5 to 65 MHz
Range
Transmitter Frequency
5 to 65 MHz
Range
Upstream Transmission
4 upstream channels
Modulation
QPSK, 8 QAM, 16 QAM, 32 QAM, 64 QAM / ATDMA, 128 QAM / SCDMA
Maximum Data Rate per
channel
Modulation
QPSK
16 QAM
QPSK
16 QAM
32 QAM
64 QAM
16 QAM
32 QAM
64 QAM
Bandwidth
200 kHz to 6.4 MHz
Maximum Operating Level
Modulation
TDMA
QPSK
8 QAM
16 QAM
32 QAM
64 QAM
SCDMA
QPSK
8 QAM
16 QAM
32 QAM
64 QAM
128 QAM
Electrical
Input Voltage
15 VDC
Power Consumption
~ 17 Watts
(modem module)
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
Channel
Raw
Bandwidth (MHz)
Data Rate (Mbps)
1.6
2.56
1.6
5.12
3.2
5.12
3.2
10.2
3.2
12.8
3.2
15.4
6.4
20.5
6.4
25.6
6.4
30.7
One Channel
2 Channels
+121 dBµV
+118 dBµV
+118 dBµV
+115 dBµV
+118 dBµV
+115 dBµV
+117 dBµV
+114 dBµV
+117 dBµV
+114 dBµV
+116 dBµV
+113 dBµV
+116 dBµV
+113 dBµV
+116 dBµV
+113 dBµV
+116 dBµV
+113 dBµV
+116 dBµV
+113 dBµV
+116 dBµV
+113 dBµV
Data Sheet
3 or 4 Channels
+115 dBµV
+112 dBµV
+112 dBµV
+111 dBµV
+111 dBµV
+113 dBµV
+113 dBµV
+113 dBµV
+113 dBµV
+113 dBµV
+113 dBµV
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