2 Way Return Path Outdoor Optical Receiver

2 Way Return Path Outdoor Optical Receiver
2 Way Return Path Outdoor Optical Receiver

2 Way Return Path Outdoor Optical Receiver

SR812ST is our latest high-grade two-output CATV network optical receiver. The pre-amplifier adopts full-GaAs MMIC, post-amplifier adopts GaAs module. Microprocessor control, digital display the parameters, the engineering debug is especially easy.

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Product Introduction

SR812ST is our latest high-grade 2 Way Return Path Outdoor Optical Receiver. The pre-amplifier adopts full-GaAs MMIC, post-amplifier adopts GaAs module. Microprocessor control, digital display the parameters, the engineering debug is especially easy.

Outdoor Optical Receiver

Performance Characteristics

1.High response PIN photoelectric conversion tube.

2.Optimized circuit design, SMT process production, optimized signal path, make the photoelectric signal transmission of this 2 way return path outdoor optical receiver more smooth.

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

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

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

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

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

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

Technique Parameters

Item	Unit	2 Way Return Path Outdoor Optical Receiver
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 108dBμV EQ 6dB
C/CSO	dB	≥ 60
RF Parameters
Frequency Range	MHz	45 ~862			45 ~1000
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	0～15			0～15
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	℃	-40~60
Storage Temperature	℃	-40~65
Relative Humidity	%	Max 95% no condensation
Consumption	VA	≤ 30
Dimension	mm	260（L）* 200（W）* 130（H）

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