자유롭게 게시물을 올릴수있는 게시판입니다.
  • 유년추억
  • 학교생활
  • 입시준비
  • 대학생활
  • 군생활
  • 알바생활
  • 취업준비
  • 직장생활
  • 원룸생활
  • 연애중
  • 결혼준비
  • 집안살림
  • 자녀교육
  • 창업준비
  • 이민유학
  • 노후생활
  • 전체보기


CM-110케이블모뎀 자료입니다.

 


MCNS DOCSIS CABLE MODEM












Cm110 CableLabs certified DOCSIS Cable Modem

Specifications:













































































































Downstream


  • Demodulation: 64QAM, 256QAM
  • Physical Speed: max. 40Mbps or 30Mbps
  • Error Correction: Reed Solomon + Trellis (Enhances Annex B)
  • Frequency Range: 88MHz to 860Mhz agile, in 62.5KHz steps
  • Frequency Selection: Controlled through SNMP
  • Bandwidth: 6MHz
  • Input Signal Level: -15dBmV to +15dBmV


  • Access Control System: 
10 Base-T Ethernet, RJ45 Ethernet connector
   
MEDIA ACCESS CONTROL


  • LLC Layer: 
IEEE 802.3 / DIX


  • Transmission allocation TDMA: 
Reservation, contention, constant-bit-rate


  • Packet support 
Fixed or variable length


  • Service Grades 
Best-effort, guaranteed minimum rate, limited maximum rate, constant bit rate, controlled latency, prioritized
   
CABLE MODULATOR


  • Modulation type 
64 and 256 QAM


  • Channel data rate 
26.97 Mbps and 38.81 Mbps


  • Channel bandwidth 
6MHz (optional 8 Mhz)


  • Carrier frequencies 
91 to 857 MHz (center)


  • Output level 
Commendable from 50 to 61 dBm V


  • Output impedance 
75 ohms


  • Spectral Purity & Phase Noise 
Fully MCNS RF specification compliant
   
CABLE BURST DEMODULATOR


  • Modulation 
QPSK and QAM16


  • Channel access 
TDMA


  • Channel data rate 
320 kbps to 10 Mbps


  • Channel bandwidth 
up to 3.2 MHz


  • Receive frequencies 
5 to 42 MHz


  • Input power 
-16 to +26 dBmV, +35 dBmV maximum total
   
INTERFACES


  • RF Ports-signal (Up and Downstream) 
F connector


  • RF Ports-monitor (Up and Downstream) 
F connector


  • Diagnostic Ports 
RS232 asynchronous, RJ11


  • Power 
90-254 VAC, Optional-48VDC
   
PHYSICAL


  • Temperature 
0 C to 40 C operating with internal forced air cooling
  20 C to 60 C non-operating


  • Humidity 
operating 20% to 85% Non-condensing


  • Altitude 
Operational up to 10,000 feet

출처 : //www.turbocomm.com/cable.htm


 




2001-01-15 00:03:20
4971 번 읽음
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