FIBCONET has manufactured planar lightwave circuit (可編程邏輯控制器) splitters in China since 1994. Our automated lines produce up to one million PLC splitters per month across four package families — from mini steel-tube types used inside FTTH drop closures to cassette plug-in modules deployed in operator central offices.
Every splitter we ship is 100% 測試過插入損失 on the production line, then verified through high-and-low temperature cycling before packaging. Chips come from a controlled dual supply chain combining domestic Chinese sources (石佳, Lixin) and Japanese/Korean options (Worriro, IPP) — so we match the cost, lead time and performance profile your project actually needs.
Below are the four PLC splitter families currently shipping to FTTH operators, ODN integrators and telecom distributors across Russia, 拉丁美洲, Southeast Asia and the Middle East.
| 系列 | 典型用途 | 分裂比例 | 連接 |
|---|---|---|---|
| 迷你PLC分配器 (steel-tube, compact form factor) | Inside FTTH drop closures, 接合盒, high-density module integration | 1×2, 1×4, 1×8, 1×15, 1×31, 1×63 plus 1×3, 1×6, 1×9 non-standard | SC/LC/FC — APC/UPC, or bare pigtail |
| Cassette PLC Splitter (插電 / LGX公司 / rack-mount) | ODF frames, 19″ racks, central office deployment, Russian-market LGX slot | 1×4, 1×8, 1×15, 1×31, 2×8, 2×N | SC/LC/FC — APC/UPC, fast-connector |
| ABS箱式PLC分路器 (sealed plastic housing) | Outdoor cabinets, wall-mount distribution boxes, terminal boxes | 1×8, 1×15 | SC/APC, FC APC/UPC |
| FBT分路器 (融合雙錐錐度) | Asymmetric split ratios, monitoring taps, legacy CATV, small port counts | Any ratio: 50/50, 70/30, 90/10, 5/95, 7/93, 12/88 … | SC/APC |
Need a split ratio, connector or fibre type not listed above? We mould our own housings and can build asymmetric ratios such as 1:3, 1:9, 5:95 和 2:8 on request — parameters are confirmed per project before quotation.
A PLC (平面光波電路) splitter is a passive optical device that divides one incoming optical signal evenly across multiple outputs, without needing power. In a GPON or XG-PON network, PLC splitters sit between the OLT in the central office and up to 64 用戶, forming the “point-to-multipoint” architecture that makes fibre-to-the-home affordable.
| 可編程邏輯控制器 | FBT分路器 | |
|---|---|---|
| 科技 | Planar waveguide chip + fibre array | Two fibres fused and tapered together |
| Split ratios | Powers of 2 (1×2 to 1×64), plus custom uneven ratios via chip design | Any ratio: 50/50, 70/30, 90/10, 5/95, 7/93, 12/88 |
| 波長 | 1260–1650 nm broadband | Wavelength sensitive; specify 1310 / 1490 / 1550 納米 |
| IL uniformity | Very consistent across all outputs | Varies with ratio; asymmetric ratios diverge |
| Cost at high split counts | Lower per output above 1×8 | Uneconomic above 1×4 |
| 最適合 | 斷續器, 斷續器, XG-聚氨酯, dark-fibre distribution | Monitoring taps, 有線電視, non-standard ratios |
If you need standard 1×N distribution above 1×4, choose PLC. For asymmetric or non-power-of-2 ratios with few ports, choose FBT.
| Split ratio | Max IL (no connector) | Max IL (with connector, +0.3 分貝) | Typical network use |
|---|---|---|---|
| 1×2 | ≤ 4.0 分貝 | ≤ 4.3 分貝 | First-level split, dual-feed protection |
| 1×4 | ≤ 7.3 分貝 | ≤ 7.6 分貝 | Small MDU, first-stage aggregation |
| 1×8 | ≤ 10.5 分貝 | ≤ 10.8 分貝 | Second-stage FTTH distribution |
| 1×15 | ≤ 13.7 分貝 | ≤ 14.0 分貝 | 標準 1:16 GPON access |
| 1×31 | ≤ 16.9 分貝 | ≤ 17.2 分貝 | 標準 1:32 GPON access |
| 1×63 | ≤ 20.5 分貝 | ≤ 20.8 分貝 | High-density XG-PON deployments |
Non-standard ratios such as 1:3, 1:9, 2:8, 3:7 和 5:95 可以根據要求提供.
| Deployment environment | Recommended series | 點解 |
|---|---|---|
| Inside a splice closure or joint box | Mini PLC (鋼管) | Compact form factor, protects the chip from mechanical stress |
| ODF frame or 19″ rack | Cassette PLC | Standardized front panel, quick swap, plug-in installation |
| Outdoor cabinet or wall-mount box | ABS Box PLC | Sealed housing, SC/APC pre-terminated, field-ready |
| Custom asymmetric ratio (1:3, 5:95, 等。) | FBT分路器 | Fusion-tapered, tuned per ratio, no chip constraint |
| 參數 | 價值 |
|---|---|
| 工作波長 | 1260 – 1650 納米 (單模, 寬頻寬頻繁忙) |
| Fibre type | G.657.A1 (違約), G .657. A2, G.652.D on request |
| Fibre cladding diameter | 250 µm bare / 0.9 毫米 / 2.0 毫米 / 3.0 mm jacketed |
| 工作溫度 | −40 °C 至 +85 °攝氏度 |
| 儲存溫度 | −45 °C to +85 °攝氏度 |
| Reliability screening | High-low temperature cycling per Telcordia GR-1221 |
| 回波損耗 (斷續器) | ≥ 55 分貝 (阿卡), ≥ 50 分貝 (愛國者聯盟) |
| Polarization dependent loss (PDL) | ≤ 0.3 dB 典型 |
| 方向性 | ≥ 55 分貝 |
| Standard pigtail length | 1.0 m ±0.1 m; 1.5 m in stock; 自訂到 80 km on cassette / drum series |
| Available connectors | SC/APC, SC/UPC協議, LC / APC, LC/UPC嘅, FC/APC, FC/UPC, fast-connector, or bare pigtail |
| 插入損耗 (伊利諾伊州) | See split-ratio table above; every unit 100% tested before packing |
Note on insertion loss. Our patch-cord line achieves connector IL down to 0.1 分貝. This value applies to the connector alone and does not replace the PLC splitter loss budget. PLC IL is governed by the split ratio (see table above), plus a 0.2–0.3 dB connector allowance when connectors are attached.
FIBCONET began as a PLC splitter factory in 1994, six years before the first commercial GPON deployment. That head start let us build the supply-chain relationships and in-house tooling — housing moulds, alignment jigs, potting recipes — that most fibre passives vendors still buy in from third parties.
Combined monthly output across all PLC package types reaches approximately 1,000,000 units per month, on automated alignment lines where a single operator runs two machines in parallel.
The PLC chip drives 60–70% of the finished splitter’s optical performance. We keep two supply channels active in parallel: domestic chips (石佳, Lixin) as our default choice for cost, lead time and production availability — current-generation Shijia yield matches import quality — and imported chips (Worriro Japan, IPP Korea) for customers who specify origin or the tightest IL uniformity. Because we also hold contract positions upstream in fibre array (FA) and ferrule supply, our IL uniformity holds across batches without input-geometry drift.
Third-party test reports (electronic, stamped) available on request.
Standard-ratio cassette and box PLC splitters start from as few as 2 units — sample and trial orders are welcome. Mini and ABS box regular ratios ship from stock. Long-term partners can negotiate consignment or blanket terms. Silk-screen branded steel tubes require an MOQ of 1,000 pieces at no extra cost.
Regular ratios in standard packages are held in stock and ship within days. For a 5,000-piece 1×8 mini PLC order the typical lead time is around 20 days from PO, including approximately one week for raw material staging. Urgent orders can be prioritized on the production schedule; please flag urgency at RFQ stage.
係. All uneven ratios including 1:3, 1:9, 2:8, 3:7 和 5:95 are supported, along with 2×N configurations. Insertion loss and uniformity meet industry standards; send us the required ratio, pigtail length and connector type and we will confirm specification, price and lead time.
Our PLC splitters are designed and tested to match the reliability methodology defined in Telcordia GR-1209 (passive branching components) and GR-1221 (reliability qualification). Full test reports from accredited third-party labs can be arranged for project bids.
係. 我哋會為你嘅藝術品製作 — 自訂顏色盒, 外紙箱標誌, private-label stickers, 規格表插入物同品牌手冊. Full OEM/ODM support is standard.
標準原廠保養係 1 year against manufacturing defect. Design service life is 10 years or longer for mini PLC and 25 years or longer for cassette / box PLC, based on our accelerated ageing test data.
We default to G.657.A1 (10 mm 最低彎曲半徑) rather than G.652.D (15 mm 最低彎曲半徑), because the tight coiling inside splitter housings will cause additional loss or even fibre breakage with G.652.D. G .657. A2 (7.5 mm 最低彎曲半徑) is available for the most compact form factors or drop-cable integration.
係. Insertion loss test videos, optional 3D end-face inspection videos and stamped third-party test reports are available on request. Video content can be customized to buyer inspection protocols.
係. We currently ship to operators, integrators and distributors across all four regions. LGX modules with the Russia-market mould are a stocked variant. Please advise Incoterms and destination port at RFQ stage — DDP feasibility can be evaluated for selected destinations.
