{"id":1331,"date":"2022-10-12T10:00:34","date_gmt":"2022-10-12T02:00:34","guid":{"rendered":"https:\/\/www.premlink.net\/?post_type=product&p=1331"},"modified":"2026-03-27T10:02:19","modified_gmt":"2026-03-27T02:02:19","slug":"pluggable-blocking-fwdm-flitter","status":"publish","type":"product","link":"https:\/\/www.premlink.net\/es\/product\/pluggable-blocking-fwdm-flitter\/","title":{"rendered":"PLP50 Filtro FWDM Enchufable de Bloqueo"},"content":{"rendered":"

Product Overview<\/h2>\n

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.<\/p>\n

Block Diagram<\/h2>\n

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Specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Blocked\u00a0Wavelength Range<\/td>\n1577\u00b15nm<\/td>\n1572-1582\u00a0nm<\/td>\n<\/tr>\n
Insertion Loss<\/td>\n\u2264 1.2dB<\/td>\n@1260~1360nm<\/td>\n<\/tr>\n
\u2264 1.2dB<\/td>\n@1460~1570nm<\/td>\n<\/tr>\n
\u2264 1dB<\/td>\n@1600~1625nm<\/td>\n<\/tr>\n
Return Loss<\/td>\n>40dB<\/td>\n@1260~1360<\/td>\n<\/tr>\n
>40dB<\/td>\n@1460~1580<\/td>\n<\/tr>\n
>30dB<\/td>\n@1590~1650<\/td>\n<\/tr>\n
PDL<\/td>\n0.4dB<\/td>\n<\/td>\n<\/tr>\n
Ripple<\/td>\n0.6dB<\/td>\n<\/td>\n<\/tr>\n
TDL<\/td>\n0.5dB<\/td>\n<\/td>\n<\/tr>\n
Maximum Optical Power<\/td>\n500mW<\/td>\n<\/td>\n<\/tr>\n
Durability<\/td>\n>500times<\/td>\n<\/td>\n<\/tr>\n
Connector Type<\/td>\nSC\/APC<\/td>\nOptional LC\/APC<\/td>\n<\/tr>\n
Working Environment<\/td>\n-40 ~ +80\u00b0C<\/td>\n<\/td>\n<\/tr>\n
Storage Environment<\/td>\n-40 ~ +85\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Welcome to enquiry our PLP-50 Pluggable Blocking FWDM Filter.<\/p>\n

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PLP-50: Pluggable 1577nm Blocking FWDM for XGS-PON Coexistence<\/h2>\n

A mission-critical “Plug-and-Protect” filter designed to eliminate 1577nm XGS-PON signal interference on legacy GPON CATV receivers during network upgrades.<\/p>\n

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  • High-Selectivity 1577nm Blocking:<\/strong> The PLP-50 pluggable blocking FWDM<\/strong> precisely targets the 1572-1582nm range, effectively shielding sensitive CATV RF receivers from high-power XGS-PON downstream interference.<\/li>\n
  • Instant Plug-In Deployment:<\/strong> 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.<\/li>\n
  • Ultra-Low Insertion Loss:<\/strong> Maintains signal integrity with a minimal insertion loss of \u22641.2dB<\/strong> across the 1260-1360nm and 1460-1570nm windows, ensuring the primary GPON data and video services remain within budget.<\/li>\n
  • Exceptional Reliability:<\/strong> Built for carrier-grade durability with over 500 mating cycles and a wide operating temperature range from -40\u00b0C to +80\u00b0C<\/strong>, making it suitable for unconditioned outdoor cabinets.<\/li>\n
  • Cost-Effective Network Migration:<\/strong> Avoid the expense of replacing legacy GPON ONTs. This pluggable blocking FWDM<\/strong> provides a low-CAPEX solution for operators transitioning to 10G PON infrastructures.<\/li>\n<\/ul>\n<\/div>\n
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    Technical FAQ: Pluggable Blocking FWDM<\/h2>\n
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    Q1: Why is a blocking filter necessary during XGS-PON upgrades?<\/h3>\n

    A:<\/strong> 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<\/strong> acts as a optical firewall, letting the 1550nm through while stopping the 1577nm dead.<\/p>\n<\/div>\n

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    Q2: Does the PLP-50 impact the upstream GPON signal?<\/h3>\n

    A:<\/strong> No. The PLP-50 is engineered to be transparent to the 1310nm upstream window. With high return loss (>40dB<\/strong>), it ensures that the OLT-to-ONT communication remains stable without causing back-reflections or packet loss.<\/p>\n<\/div>\n

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    Q3: Is this filter compatible with different connector types?<\/h3>\n

    A:<\/strong> While the standard version utilizes SC\/APC<\/strong> connectors (the most common in FTTH deployments), we also offer LC\/APC<\/strong> options upon request. This flexibility allows the pluggable blocking FWDM<\/strong> to be used across a variety of vendor-specific ONU hardware.<\/p>\n<\/div>\n<\/div>\n