Touchstone CM820B 8x4 Cable Modem
Feature Highlights
DOCSIS 3.0 / EuroDOCSIS 3.0 WAN Access8x4 Channel Bonding
1 x Gigabit Ethernet LAN
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The Touchstone® DOCSIS 3.0 8x4 Cable Modem CM820 delivers ultra-high speed data access to cable service subscriber’s homes and businesses. Designed to support the services desired most by advanced users, the CM820 enables the home or small business user to address productivity needs with the speed and performance found only in the 8x4 bonded channel cable environment along with industry-leading ARRIS reliability. With the CM820, cable operators can offer data services at downstream speeds greater than 300 Mbps (greater than 400Mbps in EuroDOCSIS® mode) to their subscribers to compete against VDSL and fiber to the home, as well as provide a platform to deliver competitive high capacity commercial services to businesses.
| Physical | |
|---|---|
| Operating Temperature (°F/°C) | 32 to 104 (0 to 40) |
| Operating Relative Humidity (Min–Max) | 5–95% (non-condensing) |
| Storage Temperature (°F/°C) | -40 to 158 (-40 to 70) |
| Dimensions (H × W × D) in., (cm) | 6.2 × 1.7 × 5.7 (16.3 × 5.3 × 14.5) |
| Weight (lbs / kg) | 0.81 (0.37) |
| Diagnostic LEDs | Power, DS, US, Online, Link |
| Interfaces | |
| RF Interface | External 75Ω ‘F’ type connector |
| Data Interface | 10/100/1000 Base-T Ethernet RJ-45 |
| Input Voltage (nominal) | 115–240 VAC 50/60 Hz (A, B, S models); 100 VAC 50/60 Hz (C model) |
| Power On/Off Switch | Yes (C model) |
| Power Consumption (W) | 5 (idle), 5.5 (max) (A, B, S models); 6 (idle), 6.5 (max) (C model) |
| RF Downstream | |
| Frequency Range (MHz) | 108–1002 |
| Bonded Channels | Up to 8 |
| Number of Tuners | 2 |
| Capture Bandwidth (MHz) | 96 (per tuner, 192 MHz total) |
| Modulation (QAM) | 64 or 256 |
| Data Rate (Mbps, Theoretical) | Up to 343 (A, C models); up to 444 (B, S models) |
| RF Input Sensitivity Level (dBmV) | -15 to +15 (A models); -17 to +17 (B, C, S models) |
| Carrier Bandwidth (MHz) | 6 (A, C models); 8 (B, S models) |
| MoCA® Immunity Filter | Embedded |
| RF Upstream | |
| Frequency Range (MHz) | 5–42 (A model); 5–65 (B, C, S models) |
| Bonded Channels | Up to 4 |
| Modulation | QPSK, 8QAM, 16QAM, 32QAM, 64QAM, 128QAM (S-CDMA only) |
| Modulation Bandwidth (kHz) | TDMA: 200, 400, 800, 1600, 3200, 6400; S-CDMA: 1600, 3200, 6400 |
| Data Rate (Mbps, Theoretical) | Up to 122 |
| RF Output Level (dBmV – one channel) |
TDMA: +17 to +61 (QPSK); -17 to +58 (8QAM, 16QAM); +17 to 57 (32QAM, 64QAM); S-CDMA: +17 to +56 (all modulations) |
| Automatic Level Adjust | Yes |
| Frequency Stability (kHz) | ±5 |
| Output Impedance (Ω) | 75 |
| Standards | |
| DOCSIS® 3.0 | PSE |
| EuroDOCSIS® 3.0 | VCCI |
| UL® 60950 | RoHS |
| FCC Part 15 Class B | WEEE |
| CE, CB | IEEE 802.3, IEEE 802.3ab |
CM820B/CE