产品概述
PL780A outdoor optical node is a very cost effective optical receiver for FTTB network. It is a high-performance, two output ports, and one-way optical node with output levels of more than 100dBuV and performance up to 1002MHz.PL780A Outdoor optical node comes in a weatherproof aluminum housing that is ideal for outdoor strand installation. It is specifically built to function in a wide temperature range and uses conventional CATV 60 VAC or 200VAC power.
原理框图
技术规格
| 参数 | 单位 | 值 |
| 频率范围 | MHz | 47 ~ 1002 |
| 平整度 | dB | ±0.75 |
| 工作波长 | nm | 1100 ~ 1600 |
| Input Power Range | dBm | -9 ~ +2 |
| AGC | 数据库 | -7 ~ +2 |
| AGC Characteristics | dB | ±1 |
| 连接器类型 | — | FC/APC or SC/APC |
| 光回波损耗 | dB | ≥45 |
| RF Return Loss | dB | ≥16 |
| ATT Adjustable Range | dB | 0 ~20 |
| EQ Adjustable Range | dB | 0 ~20 |
| CNR1 | dB | ≥51 |
| CSO1 | dB | ≥63 |
| CTB1 | dB | ≥65 |
| 射频输出电平 | dBμV | ≥104 |
| HUM Ratio | dB | ≥66 |
| Lightning Resistant Voltage | KV | ≥5(10/700μs) |
| 工作电压 | V | 130~265 or 60~90 |
| 工作温度 | ℃ | -40~ +60 |
1. Testing condition: OMI=3.5%, optical input power @-1dBm, 98chs signal output, above 550MHz at -10dB offset.
Welcome to enquiry our PL780A Outdoor Optical Node.
PL780A: Cost-Effective Outdoor Optical Node for FTTB Networks
The high-output outdoor receiver designed for reliable CATV distribution in harsh environmental conditions.
- Weatherproof Reliability: Encased in a heavy-duty aluminum alloy housing, the PL780A is engineered for strand or pedestal installation with superior heat dissipation.
- High RF Output Level: Delivers a robust 104dBµV output across two ports, ensuring strong signal delivery for building-wide coaxial distribution.
- 精密光学自动增益控制： 集成 自动增益控制 (-7 to +2dBm) maintains consistent output levels even as fiber link loss fluctuates.
- Flexible Power Options: Supports both 60VAC line power and 220VAC mains power, adaptable to different local utility standards and HFC plant designs.
- Lightning Protection: 内置 5KV surge protection ensures the internal circuitry remains safe during electrical storms and power surges.
Technical FAQ: PL780A Outdoor Optical Node
Q1: What makes the PL780A suitable for outdoor strand installation?
A： 该 PL780A outdoor optical node features a specialized weatherproof casing with an IP-rated seal and 5KV lightning resistance. It is specifically built to withstand extreme temperature ranges from -40℃ to +60℃, making it a “field-proven” solution for year-round outdoor operation.
Q2: Can I adjust the signal balance directly in the field?
A： Yes. The node includes internal adjustable ATT (0~20dB) and EQ (0~20dB) controls. This allows technicians to fine-tune the output slope and level on-site to compensate for cable loss and ensure perfect signal quality at the subscriber end.
Q3: How many output ports does this node provide?
A： The PL780A is a two-output port node. This design allows you to split the high-level RF signal to two different directions or buildings, significantly lowering the “cost-per-user” for FTTB deployments.
Need Bi-Directional High-Capacity Segmentation?
If your network requires return path traffic or higher output for trunk lines, upgrade to our
PL3000A 可分段光节点
for advanced HFC network management and 110dBµV+ output.
