Productos
PLP-50 Pluggable Blocking FWDM is easily installed on existing GPON ONU equipment to block 1577nm XGS-PON signals. PLP-50 Pluggable Blocking FWDM is simple and low cost to solve the issue that 1577nm could cause interfering with 1550nm signal to CATV RF receiver in GPON ONU.
Diagrama de bloques
Especificaciones
| Blocked Wavelength Range | 1577±5nm | 1572-1582 nm |
| Pérdida de inserción | ≤ 1.2dB | @1260~1360nm |
| ≤ 1.2dB | @1460~1570nm | |
| ≤ 1dB | @1600~1625nm | |
| Pérdida de retorno | >40dB | @1260~1360 |
| >40dB | @1460~1580 | |
| >30dB | @1590~1650 | |
| PDL | 0.4dB | |
| Ripple | 0.6dB | |
| TDL | 0.5dB | |
| Maximum Optical Power | 500mW | |
| Durability | >500times | |
| Tipo de conector | SC/APC | Optional LC/APC |
| Working Environment | -40 ~ +80°C | |
| Storage Environment | -40 ~ +85°C |
Welcome to enquiry our PLP-50 Pluggable Blocking FWDM Filter.
PLP-50: Pluggable 1577nm Blocking FWDM for XGS-PON Coexistence
A mission-critical “Plug-and-Protect” filter designed to eliminate 1577nm XGS-PON signal interference on legacy GPON CATV receivers during network upgrades.
- High-Selectivity 1577nm Blocking: En PLP-50 pluggable blocking FWDM precisely targets the 1572-1582nm range, effectively shielding sensitive CATV RF receivers from high-power XGS-PON downstream interference.
- Instant Plug-In Deployment: Engineered with a compact, plug-style housing (SC/APC or LC/APC), it can be installed directly onto existing ONU ports in seconds, requiring zero fiber splicing or technician downtime.
- Ultra-Low Insertion Loss: Maintains signal integrity with a minimal insertion loss of ≤1.2dB across the 1260-1360nm and 1460-1570nm windows, ensuring the primary GPON data and video services remain within budget.
- Exceptional Reliability: Built for carrier-grade durability with over 500 mating cycles and a wide operating temperature range from -40°C to +80°C, making it suitable for unconditioned outdoor cabinets.
- Cost-Effective Network Migration: Avoid the expense of replacing legacy GPON ONTs. This pluggable blocking FWDM provides a low-CAPEX solution for operators transitioning to 10G PON infrastructures.
Technical FAQ: Pluggable Blocking FWDM
Q1: Why is a blocking filter necessary during XGS-PON upgrades?
A: When adding XGS-PON to a legacy GPON network, the new 1577nm downstream signal can bleed into the 1550nm CATV receiver. This causes significant RF noise and pixelation. The pluggable blocking FWDM acts as a optical firewall, letting the 1550nm through while stopping the 1577nm dead.
Q2: Does the PLP-50 impact the upstream GPON signal?
A: No. The PLP-50 is engineered to be transparent to the 1310nm upstream window. With high return loss (>40dB), it ensures that the OLT-to-ONT communication remains stable without causing back-reflections or packet loss.
Q3: Is this filter compatible with different connector types?
A: While the standard version utilizes SC/APC connectors (the most common in FTTH deployments), we also offer LC/APC options upon request. This flexibility allows the pluggable blocking FWDM to be used across a variety of vendor-specific ONU hardware.
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