1. Product Summary

WR1002ME outdoor optical receiver is our latest 1GHz optical receiver. With wide receiving optical power range, high output level, low power consumption and compact structure. It is very easy to install. It is the ideal equipment to build the high-performance NGB network.

2. Performance Characteristics

High responsivity PIN photoelectric conversion tube.

1GHz bandwidth design.

Ten bar LED optical power indicator shows more accurate optical power.

Optimized circuit design, preceding stage adopts SMT process and post stage adopts typical module amplifier circuit, make the photoelectronic signal transmission more smooth.

Power doubler output, with high gain and low distortion.

Optical AGC control, when the input optical power range is -7~+2dBm, the output level, CTB and CSO basically unchanged.

Can be extended with remote network management, easy to access the network management system.

The fiber port and network management port can be selected external (I type) or internal (II type).

3. Technique Parameter

3.1 Link testing conditions

The technique 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.

Testing conditions:

Forward path optical receiver 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 modulated signal at range of 550MHz~862/1003MHz, the digital modulated 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 tilt, measure the C/CTB, C/CSO and C/N.

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 reduce (that is, actual transmission channels reduce), the output level of equipment will be increased.

Friendly Notice: Suggest you setting the RF signal to 6~9dB tilt output in the practical engineering application to improve the nonlinear index (behind the node) of the cable system.

3.2 Technique Parameters

Note: The forward RF parameters are tested under the condition of using NEC module. Use other module, the parameters will be slightly different.

4. Block Diagram