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CM380 Cable Modem

Ascent’s CM380 is a new generation of MCNS/EURO DOCSIS 3.0 compliant wireless cable modem that can be connected to standard compliant CMTS headend devices.

•    Up to 400 Mbps downstream data rate with 8 bonded channels

•    Up to 120 Mbps upstream data rate with 4 bonded channels

•    High performance Wi-Fi® Alliance credited 802.11b/g/n wireless access point

•    Advanced MIMO antenna configuration for optimal throughput and coverage

•    High Speed Internet via 2 or 4 ports 10/100/1000Base-T Ethernet (RJ-45)

•    802.11b/g/n wireless access point

•    10/100/1000Base-T Ethernet RJ45 interface

•    WEP/WPA/WPA2/WPA-PSK/WPA2-PSK encryption


Interface

Input

F-type RF connector 

Ethernet

2 or 4 × 10/100/1000 BASE-T

Antenna

2 × 3 or 5 dBi internal

Downstream

Frequency Range

NA

108 ~ 1002 MHz

EU

108 ~ 1002 MHz

Modulation

64QAM/256QAM

Input Signal Level

-17 ~ +13 dBmV (64QAM)

-13 ~ +17 dBmV (256QAM)

Data Rate

NA

8 maximum downstream channel 320 Mbps

EU

8 maximum downstream channel 400 Mbps

Bandwidth

NA

6 MHz (Alpha=0.18 for 64QAM)

6 MHz (Alpha=0.12 for 256QAM)

EU

8 MHz (Alpha=0.15 for 64QAM &256QAM)

Capture Bandwidth

Maximum support 8 channel bonding

Input Impedance

75 Ω

Input Return Loss

<-8 dB 

Upstream

Frequency Range

NA

5 ~ 42 MHz

EU

5 ~ 65 MHz

Output Signal Level

Modulation

Minimum power

Single-channel maximum power

Four-channel maximum power

1280 Mbps

5120 Mbps

TDMA/S-CDMA

TDMA/S-CDMA

QPSK

17 dBmV

23dBmV

61/56dBmV

55/53dBmV

8QAM

17 dBmV

23 dBmV

58/56 dBmV

52/53 dBmV

16QAM

17 dBmV

23 dBmV

58/56 dBmV

52/53 dBmV

32QAM

17 dBmV

23 dBmV

57/56 dBmV

51/53 dBmV

64QAM

17 dBmV

23 dBmV

57/56 dBmV

51/53 dBmV

128QAM (S-CDMA)

17 dBmV

23 dBmV

-/56 dBmV

-/53 dBmV

Modulation

160 kHz, 320 kHz, 640 kHz, 1280 kHz, 2560 kHz, 5120 kHz

Data Rate

4 maximum upstream channel 120 Mbps

Bandwidth

200 kHz, 400 kHz, 800 kHz, 1600 kHz, 3200 kHz, 6400 kHz

Output Impedance

75 Ω

Output Return Loss

<-10 dB 

Hardware Characteristics


Input Power

220V, 50Hz

Output Power

12±5% V DC, 1500 mA

Operating Temperature

0 ~ 40 °C       

Storage Temperature

-20 ~ 70 °C       

Operating Humidity

10 ~ 90%

Storage Humidity

5 ~ 95%








 

Wireless Features

Wireless Standard

IEEE 802.11n, IEEE 802.11g, IEEE 802.11b

Frequency

2.4 ~ 2.4835 GHz

Transmission Rate

11b/g/n: Up to 11/54/300 Mbps (dynamic)     

Modulation

11n: BPSK, QPSK, 16QAM, 64QAM with OFDM

11g: BPSK, QPSK, 16QAM, 64QAM, OFDM

11b: DQPSK, DBPSK, DSSS, CCK

Wireless Transmit Power 

19 ~ 21dBm

Receiver Sensitivity

270/130/108M: -73dBm@10% PER 

54M: -76dBm@10% PER

11M: -93dBm@8% PER 

6M: -95dBm@10% PER

1M: -90dBm@8% PER

Encryption

64/128/152-bit WEP / WPA / WPA2,WPA-PSK / WPA2-PSK

 


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