CATV Fttc High Output Level Outdoor Optical Node Receiver

• Customization: Available
• Type: CATV Equipment
• Function: Signal Transmission Equipment
• Model NO.: WR1004N-HJS
• Certification: CE
• Condition: New
• C/Cso: ≥ 60dB
• Receive Optical Power: -9~+2dBm
• C/CTB: ≥ 65dB
• Frequency: 1GHz
• C/N: ≥ 51dB
• Transport Package: Netrual
• Specification: outdoor type
• Trademark: Prevail
• Origin: China
• Production Capacity: 1000PCS/Month

Product Description

1. Product Summary
WR-1004N-HJS 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 segment display function, the forward path output signal ≥116dBμV.

2. 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 116dBμv.
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. Reserved C-CMTS forward path and return path RF interface, support DOCSIS EOC networking scheme.

3. 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 108dBμV, 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 of the cable system. 

3.2 Performance Parameters

Item	Unit	Performance Parameters
Forward Optical Receive Part
Optical Parameters
Optical AGC control range	dBm	-8 ~ +2
Optical return loss	dB	>45
Optical receiving wavelength	nm	1100 ~ 1600
Optical connector type	-	FC/APC, SC/APC or specified by the user
Optical fiber type	-	Single mode
Link Performance
C/N	dB	≥ 51	-1dBm optical input, output level 108dBμV, EQ 8dB
C/CTB	dB	≥ 65
C/CSO	dB	≥ 60
RF Parameters
Frequency range	MHz	45/87 ~862/1003
Flatness in band	dB	±0.75
Rated output level	dBμV	≥ 110
Max output level	dBμV	≥ 116
Output return loss	dB	(85 ~550MHz) ≥16 / (550~1000MHz) ≥14
Redundant receiver isolation	dB	≥75
Output impedance	Ω	75
Electrical control EQ range	dB	0~15 (1dB stepping)
Electrical control ATT range	dB	0~20 (1dB stepping)
Reverse Optical Transmit Part
Optical Parameters
Optical transmit wavelength	nm	1310±10, 1550±10 or specified by the user
Laser type	-	DFB or FP laser
Output optical power	mW	1
Optical connector type	-	FC/APC, SC/APC or specified by the user
RF Parameters
Frequency range	MHz	5 ~ 65 (or specified by the user)
Flatness in band	dB	±0.75
Input level	dBμV	72~ 85
Input return loss	dB	≥16
Independent transmitter isolation	dB	≥60
Input impedance	Ω	75
NPR dynamic range	dB	≥15 (NPR≥30 dB) Use DFB laser	≥10 (NPR≥30 dB) Use FP laser

 

RF Parameters of C-CMTS Interface
CMTS_DS Level of forward path insert port	dBμV	≥102
CMTS_US Gain of return path output port	dB	1±1	Port ~ CMTS_US output
Isolation of forward path to CMTS_US return path output port	dB	≥70
General Performance
Power voltage	V	A: AC(100~240)V;  B: AC (35~90)V
Feed current through	A	10
Operating temperature	ºC	-40~+60
Storage temperature	ºC	-40~+70
Relative humidity	%	Max 95% no condensation
Consumption	VA	≤ 65
Dimension	mm	360 (L)×330 (W)×161 (H)

Process
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