ACT’s CM280 DOCSIS Cable Modem delivers high speed data access to cable service subscriber’s home or small business. Designed with Ethernet interface, the CM280 conforms to MCNS/EURO DOCSIS 2.0 standards and can be connected to CMTS (Cable Modem Termination systems, Head - End) from different manufacturers which conform to the DOCSIS 2.0 standard.
• Supports MCNS/EURO DOCSIS 2.0 standards
• Up to 50 Mbps downstream data rate
• Up to 30 Mbps upstream data rate
• High Speed Internet via 4 ports 10/100Base-T Ethernet (RJ-45)
• User friendly LED interface
• Simple installation
Section | Parameter | Specification | ||
Interfaces | RF IN | F-Type RF connector | ||
Ethernet | 10/100 BASE-T | |||
Downstream | Input Frequency Range | 108 MHz ~ 860 MHz | ||
Modulation | 64 QAM / 256 QAM | |||
Input Signal | -17 dBmV ~ +17 dBmV | |||
Symbol Rate | NA | 5.056941 Msym/sec (64 QAM) | ||
5.360537 Msym/sec (256 QAM) | ||||
Euro | 6.952 Msym/sec (64 QAM) 6.952 Msym/sec (256 QAM) | |||
NA | 6 MHz | |||
Euro | 8 MHz | |||
Input Impedance | 75 ohms | |||
Input Return Loss | <-8 dB | |||
Upstream | Frequency | 5 MHz ~ 65 MHz | ||
Level Range | TDMA | +8 ~ +54 dBmV (32 QAM, 64 QAM) +8 ~ +55 dBmV (8 QAM, 16 QAM) +8 ~ +58 dBmV (QPSK) | ||
S-CDMA | +8 ~ +53 dBmV | |||
Output Signal Level | QPSK | +8 dBmV ~ 58 dBmV (QPSK) | ||
16 QAM | +8 dBmV ~ 55 dBmV (16 QAM) | |||
Modulation | QPSK / 8 QAM / 16 QAM / 32 QAM / 64 QAM / 128 QAM | |||
Symbol Rate | TDMA: 160, 320, 640, 1280, 2560 ksymb/sec S-CDMA: 1280, 2560, 5120 ksymb/sec | |||
Bandwidth | TDMA: 200, 400, 800, 1600, 3200, 6400 kHz S-CDMA: 1600, 3200, 6400 kHz | |||
Impedance | 75 Ω | |||
Output Return Loss | <-10 dB | |||
Power Supply | Input: 100 ~ 240V, 50/60 Hz | |||
Output: DC 12V/1A | ||||
Working Environment | Operating free-air temperature range 0°C ~ +50 °C | |||
Storage -20°C ~ +85 °C | ||||
