Description
D4 Patch Cord Features
- Low insertion loss and high return loss
- Good exchange ability and durability
- High temperature stability
- 100% interferometer measurement
- Conforms to Telcordia GR-326-CORE
D4 Patch Cord Specification
| Connector type | D4 connector |
| Fiber type | G652D, G657A2, G657A1, G655, G657B3, OM1 OM2 OM3 OM4,OM5, etc |
| Wavelength | 1260-1650nm |
| Fiber cores | 1 core, 2 cores or multi-fiber |
| Cable diameter | Φ3mm,Φ2.6mm, Φ2.4mm, Φ2.0mm,Φ1.6mm, Φ0.9mm or custom |
| Polish method | UPC, PC, APC（8°）, SPC |
| Cable color | Yellow, white, blue, green, grey, red, black, aqua, orange, purple, etc. |
| Fiber radius of curvature | ≥ 40 mm (G.652D and G.655C); ≥ 20 mm (only G.657A2) |
| Insertion loss | ≤ 0.1dB (Master)
≤ 0.3dB (Standard) Tested by JDS RM 3750 |
| Return loss | UPC ≥ 55dB,APC ≥ 60dB (typ.65dB)–Single mode
UPC≥ 35dB (typ.38dB)-Multimode Tested by JDS RM3750 |
| Repeat ability | ±0.1dB |
| Operating temperature | -40 ° C to 85 ° C |
| Geometry Requirement
(For Single mode) |
Ferrule End face Radius:
7mm ≤ R ≤ 12mm (APC) 10mm ≤ R ≤ 25mm (Standard) Apex Offset ≤ 30 μm (Master) Apex Offset ≤ 50 μm (Standard) Undercut -50nm ≤ U ≤ 50nm Tested by DORC ZX-1 |
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