Outdoor CATV Optical Nodes Optical Receiver with 2 Outputs

• Customization: Available
• Type: Fiber Transceiver
• Certification: CE, ISO
• Model NO.: SR812BR
• Receiving Optical Power: -9 -+2dB
• Optical Return Loss: Above 45dB
• Optical Receiving Wavelength: 1100 - 1600nm
• Optical Connector Type: FC/APC, Sc/APC or Specified by The User
• Fiber Type: Single Mode
• Product Name: Outdoor CATV Optical Nodes Optical Receiver with 2
• Transport Package: Standard Export Package
• Specification: 40x35x25cm
• Trademark: Softel
• Origin: Hangzhou, Zhejiang, China
• Package Size: 40.00cm * 35.00cm * 25.00cm
• Package Gross Weight: 5.000kg

Product Description

Outdoor CATV Optical Nodes Optical Receiver with 2 outputs

SR812ST is our latest high-grade two-output CATV network optical receiver. The pre-amplifier adopts full-GaAs MMIC, post-amplifier adopts GaAs module. Optimized circuit design coupled with our 10 years professional design experience, make the equipment achieve good performance indexes. Microprocessor control, digital display the parameters, the engineering debug is especially easy. It is the main equipment to build the CATV network.

 

Performance Characteristics

 

High response PIN photoelectric conversion tube.

Optimized circuit design, SMT process production, optimized signal path, make the photoelectric signal transmission more smooth.

Specialized RF attenuation chip, with good RF attenuation and equilibrium linear, high accuracy.

GaAs amplifier device, power doubly output, with high gain and low distortion.

Single Chip Microcomputer (SCM) control equipment working, LCD display the parameters, convenience and intuitive operation, and stable performance.

Excellent AGC performance, when the input optical power range is -9~+2dBm, the output level keep unchanged, CTB and CSO basically unchanged.

Reserved data communication interface, can connect with class network management responder, access to network management system.

Return emission can select burst mode to sharply decrease the noise convergence and reduce the forepart receiver number.

 

Technique Parameters

 

Item	Unit	Technical Parameters
Forward optical receiving part
Optical Parameters
Receiving Optical Power	dBm	-9 ~ +2
Optical Return Loss	dB	>45
Optical Receiving Wavelength	nm	1100 ~ 1600
Optical Connector Type		FC/APC, SC/APC or specified by the user
Fiber Type		Single Mode
Link Performance
C/N	dB	≥ 51(-2dBm input)
C/CTB	dB	≥ 65	Output Level 108 dBμV Balanced 6dB
C/CSO	dB	≥ 60
RF Parameters
Frequency Range	MHz	45 ~862			45 ~1003
Flatness in Band	dB	±0.75			±0.75
Rated Output Level	dBμV	≥ 108			≥ 108
Max Output Level	dBμV	≥ 114			≥ 112
Output Return Loss	dB	(45 ~550MHz)≥16/(550~1000MHz)≥14
Output Impedance	Ω	75			75
Electronic Control EQ Range	dB	0~10			0~10
Electronic Control ATT Range	dBμV	0~20			0~20
Return Optical Emission Part
Optical Parameters
Optical Transmit Wavelength	nm	1310±10, 1550±10 or specified by the user
Output Optical Power	mW	0.5, 1, 2
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	±1
Input Level	dBμV	72 ~ 85
Output Impedance	Ω	75
NPR dynamic range	dB	≥15(NPR≥30 dB) Use DFB laser		≥10(NPR≥30 dB) Use FP laser
General Performance
Supply Voltage	V	A:AC(150~265)V;B:AC(35~90)V
Operating Temperature	ºC	-40~60
Storage Temperature	ºC	-40~65
Relative Humidity	%	Max 95% no condensation
Consumption	VA	≤ 30
Dimension	mm	260(L)x 200(W)x 130(H)

 

Note: The forward RF parameters are tested under the condition of using GaAs 25dB power doubly module in the last stage. Use other module, the parameters will be slightly different.

 

Burst Mode (Select this mode, see below)
Output Optical Power (Close the burst mode)	dBm	-30
Laser Turn On Threshold	dBμV	≥70
Laser Turn Off Threshold	dBμV	≤62
Laser Turn On Time (t1)	us	0.5≤ t1 ≤1
Laser Turn Off Time (t2)	us	0.5≤ t2 ≤1.5