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CM-D20B1 Cable Modem

Sichuan Jiuzhou Electronic Technology Co., Ltd.
Sichuan Jiuzhou Electronic Technology Co., Ltd.
City: Shenzhen
Province/State: Guangdong
Country/Region: China
Tel: 86-755-26715498
    Buy cheap CM-D20B1 Cable Modem from wholesalers
     
    Buy cheap CM-D20B1 Cable Modem from wholesalers
    • Buy cheap CM-D20B1 Cable Modem from wholesalers

    CM-D20B1 Cable Modem

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    Payment Terms : T/T
    Delivery Time : within 7 working days(depends on your quantity)
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    CM-D20B1 Cable Modem

    CM-D20B1 USB/Ethernet cable modem is compatible with MCNS DOCSISI 1.2/1.1/2.0 and EuroDOCSIS1.0/1.1/2.0 protocol
    CM-D20B1 USB//Ethernet cable modem is used in user terminal with built-in 10/100Base-t Ethernet port and USB1.1 port to offer CATV high speed internet access service.
    SNMP Network management
    CM-D20B1 supports SNMP network protocol, integrated with MIB base, MIB II and MCNSMIB. Remote network management makes it easier for customer service to satisfy the operators and subscribers
    Environment:
    Working temprature: 0° C-40° C
    Humidity: 10 %-90 %
    Storage temperature: -20° C-60°
    Notice
    (1)Actual transmission bit rte is usually less than max theoretical value.
    (2) CMTS must in A-TDMA transmission mode or S-CDMA mode.
    (3) A-TDMA or S-CDMA maximally supports 30Mbps bit rate speed&
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    Parameters
    Data

    Central frequency

    91-857 MHz

    Level range

    45-75 dBuV

    Modulation mode

    64QAM, 256QAM

    Symbol rate

    5.069 Msym/sec(64QAM)
    5.361 Msym/sec(256QAM)

    Bandwidth

    6MHz

    Input impedance

    75 ohm

    Input return loss

    ≥ 6 dB

    Euro-DOCSIS spec.

    Parameters
    Data

    Central frequency

    112-858 MHz

    Level range

    43-77 dBuV

    Modulation mode

    64QAM, 256QAM

    Symbol rate

    6.952 Msym/sec(64QAM)
    6.952 Msym/sec(256QAM)

    Bandwidth

    8MHz

    Input impedance

    75 ohm

    Input return loss

    ≥ 6 dB

    2.2 Upstream (Transmitter)
    DOCSIS spec.

    Parameters
    Data

    Central frequency

    5-42MHz

    Level range

    TDMA
    68-114 dBuV (32QAM, 64QAM)
    68-115 dBuV (8QAM, 16QAM)
    68-118 dBuV (QPSK)
    S-CDMA
              68-113 dBuV (QPSK, 8QAM, 16QAM, 32QAM, 64QAM, 128QAM)

    Modulation mode

    QPSK, 8QAM, 16QAM, 32QAM, 64QAM, 128QAM

    Symbol rate

    TDMA:
            160K, 320K, 640K, 1280K, 2560K, 5120K sym/sec
    S-CDMA
            1280K, 2560K, 5120K sym/sec

    Bandwidth

    TDMA:
              200, 400, 800, 1600, 3200, 6400 KHz       
    S-CDMA
              1600, 3200, 6400 KHz

    Input impedance

    75 ohm

    Input return loss

    ≥ 6 dB

    Euro-DOCSIS spec.

    Parameters
    Data

    Central frequency

    5-65MHz

    Level range

    TDMA
    68-114 dBuV (32QAM, 64QAM)
    68-115 dBuV (8QAM, 16QAM)
    68-118 dBuV (QPSK)
    S-CDMA
              68-113 dBuV (QPSK, 8QAM, 16QAM, 32QAM, 64QAM, 128QAM)

    Modulation mode

    QPSK, 8QAM, 16QAM, 32QAM, 64QAM, 128QAM

    Symbol rate

    TDMA
            160K, 320K, 640K, 1280K, 2560K, 5120K sym/sec
    S-CDMA
            1280K, 2560K, 5120K sym/sec

    Bandwidth

    TDMA
              200, 400, 800, 1600, 3200, 6400 KHz       
    S-CDMA
              1600, 3200, 6400 KHz

    Input impedance

    75 ohm

    Input return loss

    ≥ 6 dB

    Connection port:
    Power Supply port: Input voltage: 12VDC                          Rating power: 6W
    RF port: F type 75Ω
    Network port:
    CM-D20B1 adopts Ethernet 10/100Base-T standard Ethernet port to offer easy connection to PC or HUB, providing high quality VOD, audio transfer and information downloading service.
    CM-D20B1 adopts USB 1.1 port to enable plug-and-play function. User doesn’ t need to install network adaptor but only simple program drive instead to enjoy the high quality internet service via USB port
    Indicator

    Indicator
    FunctionWork Status

    P OWER
    Power supply
    On: power supply normal
    Off: power supply abnormal

    STBY
    Standby
    Standby status(backup)

    DS
    Downstream status
    Flickering: searching downstream channels
    On: channels located and locked

    US
    Upstream status
    Flickering: searching downstream channels (distance detecting)
    On: channels located and distance detecting complete

    ONLINE
    Online status
    Flickering: registering
    On: register complete and communication complete

    ENET
    Network status
    Off: network connection abnormal
    flickering: data sending or receiving
    On: network connection normal 

    USB
    USB status
    Off: USB connection abnormal
    Flickering: data sending or receiving
    On: USB connection normal
    &
    Quality CM-D20B1 Cable Modem for sale
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