SJ-FTTH-MN-4B Specifications
| Model | SJ-FTTH-MN-4B |
| Type | Fiber wall socket, 86 type |
| Format | 86 × 86 mm; fits standard 86 back boxes |
| Port configuration (this model) | 4 ports, SC/LC |
| Family options | MN-4 series: single / dual / tri / four-port designs, SC or LC |
| Housing material | PC & ABS flame-retardant plastic, white |
| Mounting | Screw-fixed, wall mounted |
| Cable accepted | Indoor cable and 2 × 3 mm FTTH drop cable |
| Operating temperature | −40 °C to +70 °C |
Key Features
- 4 ports in the standard 86 format — the highest port count in the MN-4 family, on the same 86 × 86 mm wall standard as electrical plates.
- Fits 86 back boxes — retrofits onto existing 86 boxes without custom plates or wall cut-outs.
- One outlet for the whole room — live drop, spare fibers and second services on a single socket.
- Flame-retardant housing — PC & ABS flame-retardant plastic for home and office environments.
- Family consistency — matches the MN-4A/4C/4D designs, so buildings can mix port counts with one look.
- Rated −40 °C to +70 °C — covers corridors, stairwells and plant rooms as well as living spaces.
Where the SJ-FTTH-MN-4B Fits
- Multi-fiber rooms and small offices — up to four services on one standard wall point.
- MDU units — one 4-port socket per dwelling where parallel services are planned.
- 86-box retrofits — upgrade existing wall boxes to fiber without changing the back box; the {DROP} terminates behind the plate.
Need fewer ports? The same family comes in 1-port, 1–2 port and FTTH outlet versions. Need splice storage behind the outlet? See the SJ-FTTH-SK-8. Full range: Fiber Wall Socket category.
Installation Notes
- Fix the socket to the wall or a standard 86 back box with the supplied screws.
- Splice or field-terminate the incoming fibers inside the base, coil surplus fiber without kinks, then seat the adapters.
- Label the four ports during installation to avoid cross-patching later.
- For general wall-outlet mounting, see how to install a fiber wall socket in your house.
The MN-4 Family at a Glance
| MN-4A | MN-4B (this model) | MN-4C | MN-4D | |
|---|---|---|---|---|
| Format | 86 × 86 mm wall plate | 86 × 86 mm wall socket | 86 × 86 mm face plate | 86 × 86 mm wall outlet |
| Ports | 1 port SC/APC | 4 ports | 1–2 ports | 1 port |
| Best for | Standard subscriber wall point | Multi-fiber outlets, small offices | Flexible 1–2 fiber points | FTTH-labeled outlet projects |
Full range: Fiber Wall Socket category
