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Subscriber cable modems

Subscriber cable modem Thomson TCM-420

8
Key characteristics:
  • Maintenance of two standards DOCSIS 2.0 and Euro-DOCSIS 2.0
  • Ports Ethernet and USB1.1 for wire connection and quick installation
  • Reliable, high efficient platform
  • Support IPv6
  • Use of BPI+ algorithm to provide connection safety at area of-CMTS modem

Ease in use and adjustment

As all the models of cable modems Thomson, TCM420 has ports Ethernet and USB for quick installation and comfortable usage. For visualization of displaying modem state they use LED indicators, displaying process of registration, data exchange and connection state.

Availability of web-interface provides access to modem settings and internal logs.

Improved safety

To provide connection safety as both for operators as and for end users in TCM420 equipment we realized some protection mechanisms. Built-in firewall minimizes influence of hazardous programs on network, as well as constantly examines content of packets. Built-in detection mechanism DoS recognizes great number of patterns of attacks, and at detection of potential threats records data of them into local log or transmits data to monitoring server.

To restrict access to interface of control of wireless router is applied authorization of users by name and password.

Data exchange safety at passage between cable modem and CMTS operator applied BPI+ encoding.

Technical specifications

Standards/Certifications

Data

Interconnection with CMTS

Full compatibility with Euro-DOCSIS 2.0

Any CMTS with support of DOCSIS and Euro-DOCSIS

Receiver

  • Direct circuit modulation
  •  
  • Range of frequencies of direct circuit
  • Maximum transmission rate at direct circuit
  • Input signal levels

  • BER

 

  • Input resistance

64/256 QAM

108 - 862 MHz

 41,71/55,61 Mbit/s (64/256 QAM)

+43 - +73 dBmkV (64QAM)

+47 - +77 dBmkV (256QAM)

<1x10-8 @ C/N=25,5дБ, QAM 64 с FEC,

<1x10-8 @ C/N=34,5дБ, QAM 256 с FEC,

Powersignal +47 - +54 dBmkV

<1x10-8 @ C/N=33 dB, QAM 256 сFEC,

Signal power +54 - +77 dBmkV

75 Ohm

Transmitter

Return channel modulation

Additional modulation types

Frequency range of return channel

Max. Transmission rate in return channel

Output signal levels

Wideband of return channel

Output resistance

Automatic signal level control

Gain control range

Frequency stability

QPSK, 16 QAM

QAM 8/32/64 at ATDMA

QAM 128 at S-CDMA

5 - 65 MHz

5,12/10,24 Mbit/s (QPSK/16QAM)

30,72 Mbit/s (64QAM)

A-TDMA:

+68 - +118 dBmkV @ QPSK

+68 - +115 dBmkV @ QAM 8/16

+68 - +114 dBmkV @ QAM 32/64

S-CDMA:

+68 - +113 dBmkV @ for all types of modulation

200 kHz, 400 kHz, 800 kHz, 1,6 MHz, 3,2 MHz, 6,4 MHz

75 Ohm

available

   

50 dB

±5 kHz

Software

Update

Number of supported clients

Filtration of protocols

SNMP

Safety

HTTP Server

Local configuration

Yes

Up to 254

Ethernet and IP

V2, V3

BPI+

available (CM status)

yes

Interfaces/

Physical parameters

Wireless

Ethernet

Radio-frequency connector

USB

Buttons

Indication

Power unit

Operating temperature

Humidity

Storage temperature

Safety

Dimensions

1 x RJ-45 - 10/100 Base-T auto detect

1 x F-Type

1 x USB 1.1

Reset

Message, Cable Activity, Cable Link, PC Link, Internet

external, 230VAC 50Hz

0° - 40°С

20% - 90%

-20° - 70°С

СЕ & CB

126х110х42 mm