JIUZHOU Optical Node GJY862H2J-H or GJY862H2F-H is a highly reliable solution for FTTB application that doesn’t ask for return-path. The node employs a high quality Silicon Optical Receiver Module to complete O/E conversion. Then a GaAs MMIC amplifier chip and a GaAs power doubler amplifier module to enlarge RF signal. Interstage slope control is regulated by a 0~20dB variable equalizer while interstage gain control is regulated by a 0~20dB attenuator. Electronic gain control circuit is also built. Its tunable range is 0~15dB. Attenuation of electronic gain control could be set through operating buttons near to LED numeric display. The LED numeric display indicates actual optical input power and actual voltage of 5V power supply. Optical AGC technology is applied on this node. It keeps node’s output constant when optical input power varies from -7dBm to +1dBm.

Product Features

• 1290~1580nm optical wavelength, -7~+1dBm allowable optical input power.
• O/E conversion by Silicon optical receiver module, ensuring good performance.
• Optical AGC technology keeps node’s RF output constant.
• 47~862MHz RF working frequency, 2 RF outputs.
• RF enlarged by a GaAs MMIC amplifier chip and a GaAs power doubler amplifier module.
• Interstage slope control regulated by a 0~20dB variable equalizer.
• Interstage gain control regulated by a 0~20dB variable attenuator.
• LED numeric display indicates actual optical input power and actual voltage of 5V power supply.
• Compact die-casting housing, suitable for wall mounting or strand mounting.

3. Block Diagram

Technical Specifications

Notes:

1. Test Conditions: 59-CH PAL-D signal and 200MHz band wide QAM digital signal, JIUZHOU GFS1310F-B 1310nm optical transmitter, 10km fiber, node with -1dBm optical input power and 10dB slope.