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  • CATV Fttc Outdoor Optical Node with Eoc and ONU
  • CATV Fttc Outdoor Optical Node with Eoc and ONU
  • CATV Fttc Outdoor Optical Node with Eoc and ONU
  • CATV Fttc Outdoor Optical Node with Eoc and ONU
  • CATV Fttc Outdoor Optical Node with Eoc and ONU
  • CATV Fttc Outdoor Optical Node with Eoc and ONU

CATV Fttc Outdoor Optical Node with Eoc and ONU

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Basic Info.

Model NO.
WR1004N-SJL
Specification
outdoor type
Trademark
Prevail/Fobetmoc
Origin
China
Production Capacity
100PCS/Month

Product Description

Product Summary
WR-1004N-SJL outdoor optical node can be configured 2 forward path optical receiver modules, 2 return path optical transmitter modules, 1 Ethernet transponder module and 2 switching power supply modules at most. Adopts advanced optical AGC technology, the output level and output slope both adopt the electric control circuit. Add LED nixie tube display function, can output 4-way forward path signal (≥108dBμV) at most.
 

Performance Characteristics

  1. Forward path optical receiving part adopts advanced optical AGC technology, the input optical power range extended to -8~+2dBm.
  2. Forward path optical receiving part: RF operating bandwidth extended to 1GHz, each way maximum output level up to 110dBμV.
  3. Full electric adjust attenuation and equilibrium control circuit, and achieve remote operation by NMS.
  4. RF amplifier part adopts quick plug modular design, can quickly replace RF amplifier module without dismantling the RF cable connector.
  5. Built-in perfect condition monitoring circuit, and support Ethernet transponder.
  6. Built-in tri-state gate switch circuit in the return path. Three states passthrough, -6dB and OFF can be remote set by network management responder.
  7. Reserved C-CMTS forward path and return path RF interface, support DOCSIS EOC networking scheme.
Technique Parameter
3.1 Link testing conditions
The performance parameters of this manual according to the measuring method of GY/T 194-2003 < Specifications and methods of measurement on optical node used in CATV systems >, and tested in the following conditions.
  1. Forward optical receive part: with 10km standard optical fiber, passive optical attenuator and standard optical transmitter composed the testing link. Set 59 PAL-D analog TV channel signal at range of 45/87MHz~550MHz under the specified link loss. Transmit digital modulation signal at range of 550MHz~862/1003MHz, the digital modulation signal level (in 8 MHz bandwidth) is 10dB lower than analog signal carrier level. When the input optical power of optical receiver is -1dBm, the RF output level is two-way splitter output 106dBμV, with 8dB output slope, measure the C/CTB, C/CSO and C/N.
  2. Return optical transmit part: Link flatness and NPR dynamic range are the link indexes which is composed of return path optical transmitter and optical receiver.
Note: When the rated output level is the system full configuration and the receiving optical power is -1dBm, equipment meets the maximum output level of link index. When the system configuration degrade (that is, the actual transmission channels reduce), the output level of equipment will be increased.
Friendly Notice: Suggest you setting the RF signal to 6~9dB slope output in the practical engineering application to improve the nonlinear index (behind the node) of the cable system. 
3.2 Performance Parameters
 
ItemUnitPerformance Parameters
Forward Optical Receive Part
Optical Parameters
Optical AGC control rangedBm+2~-8/-7/-6/-5 adjustable
Optical Return Loss dB>45
Optical Receiving Wavelengthnm1100 ~ 1600
Optical Connector Type-FC/APC, SC/APC or specified by the user
Optical Fiber Type-Single mode
Link Performance
C/NdB≥ 51-1dBm optical input, output level 106dBμV (splitter output)
EQ 8dB
C/CTBdB≥ 65
C/CSOdB≥ 60
RF Parameters
Frequency RangeMHz45/87 ~1003
Flatness in BanddB±0.75
Rated Output LeveldBμV≥ 106 (Four-way splitter output);
≥ 110 (Two-way independent output)
(when the optical AGC control range is +2~-8)
Max Output LeveldBμV≥ 112 (when four-way splitter output and the optical AGC control range is+2~-5)
Output Return LossdB(85 ~550MHz)≥16 / (550~1000MHz) ≥14
Redundant Receiver IsolationdB≥75
Output ImpedanceΩ75
Electrical control EQ rangedB0~15 (1dB stepping)
Electrical control ATT rangedB0~20 (1dB stepping)
Reverse Optical Transmit Part
Optical Parameters
Optical Transmit Wavelengthnm1310±10, 1550±10 or specified by the user
Laser Type-DFB or FP laser
Output Optical PowermW1
Optical Connector Type-FC/APC, SC/APC or specified by the user
RF Parameters
Frequency RangeMHz5 ~ 65 (or specified by the user)
Flatness in BanddB±0.75
Input LeveldBμV72~ 85
Input Return LossdB≥16
Independent Transmitter Isolation dB≥60
Input ImpedanceΩ75
NPR dynamic rangedB≥15 (NPR≥30 dB)
Use DFB laser
≥10 (NPR≥30 dB)
Use FP laser

RF Parameters of C-CMTS Interface
CMTS_DS
Level of Downstream Insert Port
dBμV98~100
CMTS_US
Gain of Upstream Output Port
dB0±1Port~CMTS_US output
Isolation of Downstream to CMTS_US Upstream Output PortdB≥70
General Performance
Power VoltageVA:AC(100~240)V;B:AC(35~90)V
Feed current throughA10
Operating TemperatureºC-40~+60
Storage TemperatureºC-40~+70
Relative Humidity%Max 95% no condensation
ConsumptionVA42
Dimensionmm360(L)×330(W)×155(H)
Note:The forward path RF indexes above are tested when adopt ACA2788 module. Use other module, the indexes will be slightly differ
Process
CATV Fttc Outdoor Optical Node with Eoc and ONU
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