Return Path Receiver GWR3300 - Greatway Technology Co., Ltd.

Greatway Technology, connecting the world
19” 1RU Return Path Optical Receiver
GWR3300 Return Path Optical Receiver
GWR3300 rack mount return path receiver is designed for the indoor CATV return signal
receiving. In the 19” 1RU rack, there are maximum 4 independent return path optical receivers. With
high performance photodiode and hybrid amplifier, GWR3300 offers a clean return path band for Cable
Modem up-streaming signals. Optical power indicator and RF test port on the front panel can indicate
receiver ’s status.
Features
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1550nm/1310nm dual wavelength
19″1U standard rack mount
Low noise, high linearity photodiode
5- 200 MHz RF Bandwidth
Band pass filter depressing the up-streaming noise
Output adjustment and -20dB RF test available on front panel
Block Diagram
0dBm
Optical In
-12dBm
Pre-amplifier
Photodiode
Power amplifier
-20dBm
Power amplifier
-20dBm
Power amplifier
-20dBm
Power amplifier
-20dBm
Attenuator
0dBm
Optical In
-12dBm
Pre-amplifier
Photodiode
Band pass filer
Attenuator
0dBm
Optical In
-12dBm
Pre-amplifier
Photodiode
Band pass filer
Attenuator
0dBm
Optical In
-12dBm
Pre-amplifier
Photodiode
Band pass filer
Band pass filer
Attenuator
RF output
Shenzhen Greatway Technology Co., Ltd.
Web: www.greatwaytech.com
1
Greatway Technology, connecting the world
19” 1RU Return Path Optical Receiver
Specifications:
Items
Unit
Parameters
Input Optical Power
dBm
-15 ~ +2
Recommended Optical Input
Optical Return Loss
dBm
dB
-10 ~ 0
>55
Optical Wavelength
nm
1100 ~ 1600
Optical Fiber Connector
FC/APC or SC/APC
≥ 15 (for DFB laser return path transmitter)
Noise Power Ratio
dB
Frequency range
MHz
5~200
Flatness in band
dB
±0.75
RF Output Level
dBmV
20@-8dBm optical input
MGC Control Range
dB
±5
RF Return Loss
dB
≥16 (5~200 MHz)
Output Impedance
Ω
75
Working Temperature
ºC
0~+50
Power consumption
W
10
Power Supply
V
100~240 (50/60Hz)
Dimensions
mm
480×325×44
Weight
Kg
8
≥ 10 (for FP laser return path transmitter)
Ordering Information
GWR3300-A-BC 19” 1U Optical Return Path Receiver
A: Number of independent optical return path receiver, from 1 to 4
BC: FC for FC/APC connector
SC for SC/APC connector
Shenzhen Greatway Technology Co., Ltd.
Web: www.greatwaytech.com
2
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