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Help CenterDidsys New CMTS DOCSIS 2.0 Cable Modem
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Dibsys Cable Moderm
Overview
DOCSIS system include CMTS(Headend cable network ) and CM(user end).The main function of DOCSIS Cable Modem system is transparently transmitting IP packets between the front end and the user end.
Technical principle
After the Modem Cable power, the downlink frequency of the front end is automatically searched,
and the downstream frequency is found, the uplink channel is determined from the downlink data.CMTS is connected with the front-end device, and exchange information, including the upstream level, the Dynamic Host Configuration Protocol (DHCP) and the IP address of the small file transfer protocol (TFTP) server, etc.Modem Cable has online features, even if the user does not use, as long as the power is not cut off, and the front end always to maintain the exchange of information, the user can always on-line.
Cable moderm has memory function, when the power is powered up, the data before the power storage are exchanged with the front data , and can quickly complete the search process.
CM online process
Key Features
l The definition is according to C-DOCSIS standard, meet europe DOCSIS 2.0/DOCSIS 2.0
l 1x10/100BASE-T RJ45 ethernet adaptive port,1 RF input
l Compact design:132x132x36mm
l Downstream frequency is 108MHz to860MHz,64QAM,256QAM and 1024QAM
l Upstream frequency is 5 to 65MHz, QPSK,8/16/32/64/128/256QAM
Technical specifications
Model |
DB-CM201 |
|
Appearance | ||
Interface |
1*RF interface |
|
10/100Mbps Gigabit Ethernet*1 | ||
Antenna |
None |
|
Button |
1*Reset button |
|
Power supply |
DC 12V/1A |
|
Size |
113*112*27 mm |
|
Weight |
151g |
|
RF downlink parameters | ||
Frequency Range |
North American Standards:DOCSIS:88-1GHz |
|
Bandwith |
6-8MHz |
|
Modulation |
64,256QAM |
|
Bitrate |
30Mbps(64QAM+ American StandardDOCSIS) |
|
Input Level |
+/- 15 dBmV |
|
Input impedance |
75 Ohms |
|
RF uplink parameters | ||
Frequency Range |
North American Standard:DOCSIS:5-42MHz |
|
Bandwith |
200/400/800/1600/3200/6400 KHz |
|
Modulation |
QPSK,8QAM,16QAM,32QAM,64QAM,128QAM,4U/S |
|
Bitrate |
30Mbps(TDMA),35MHz(S-CDMA) |
|
Output level |
QPSK:+8-58dBmV |
|
Protocol | ||
Network |
TCP/IP/UDP/ARP/ICMP/DHCP/TP/TFTP/SNMP/HTTP |
|
Application |
SNMP V1/V2/V3 |
|
Management |
Support local WEB login |
|
Environment | ||
Operation temperture |
0-40℃ |
|
Operation humidity |
5-95%RH Non-condensing |
|
LED indicators
LED |
Color |
Situation |
Explain |
Power |
Green |
On |
Cable Modem: Normal supply |
Off |
Cable Modem:No power supply |
||
DS |
Green |
Flickering |
Cable Modem: Searching for downstream signal |
On |
Cable Modem:Lock downstream signal |
||
Off |
Idle |
||
US |
Green |
Flickering |
Cable Modem: Adapting the uplink signal |
On |
Cable Modem: Lock the uplink signal |
||
Off |
Idle |
||
Online |
Green |
Flickering |
Cable Modem: Getting profile |
On |
Cable Modem: Online |
||
Off |
Cable Modem:Offline |
||
LAN |
Green |
Flickering |
Ethernet port plug the network cable , and exchanging data |
On |
Ethernet port plug the network cable , but no exchange of date |
||
Off |
Network cable is unplugged |
Our advantages
1) High quality and low price
2) 3-year warranty
3) Perfect after-sale service and technical support
Send Inquiry to This Supplier
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