C4 16 Downstream Cable Access Module
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The ARRIS C4 and C4c 16 Downstream Cable Access Module (16D CAM) supports sixteen DOCSIS or EuroDOCSIS 3.0 downstream channels. These channels are grouped onto four upconverters with four Annex A or Annex B channels per upconverter. The Physical Interface Card (PIC) of the 16D CAM has four F-connectors with each F-connector connected to the output of one of the upconverters. Each downstream channel on the same upconverter/F-connector must have a unique center frequency, but the channels are not required to be contiguous. The downstream channels on a single F-connector can span up to 80MHz of spectrum, allowing an MSO flexibility in choosing DOCSIS downstream frequencies.
| RF Downstream | |
|---|---|
| Frequency Range (MHz) | 91 to 999 (DOCSIS® 3.0); 112 to 999 (EuroDOCSIS™ 3.0) |
| Modulation (QAM) | 64, 256 |
| Data Rate (Mbps) (Max.) | 30.34 to 55.62 per channel |
| RF Output Level (dBmV) | 41 to 60 |
| Typical Modulation Error Ratio (MER) (dB) | 47 |
| Symbol Rate (Msym/sec) | 5.361 (DOCSIS); 6.952 (EuroDOCSIS) |
| Bandwidth (MHz) | 6 (DOCSIS), 8 (EuroDOCSIS) |
| Output (load) impedance (ohms) | 75 |
| Physical | |
| Power | -48 VDC (-44 to -72 VDC) |
| Power Consumption Classic Rev G |
139 W max at -48 VDC, 77°F (25°C) |
| Power Consumption Optimized |
136 W max at -48 VDC, 77°F (25°C) |
| Operating Temperature Short Term °F (°C) |
+23 to +131 (-5 to +55) |
| Operating Temperature Long Term °F (°C) |
+41 to +104 (+5 to +40) |
| Storage Temperature °F (°C) | -40 to +158 (-40 to +70) |
| Operating Humidity (Min.-Max.) | 5 to 85% (Non condensing) |
| Dimensions (H × W × D) in. (cm) | 15.8 × 0.8 × 15.0 (40.0 × 1.9 × 38.1) |
| Weight lbs. (kg) | approx 4.1 (1.8) |
C4 16D CAM