Product Positioning: Outdoor FTTH Demarcation Box
The NID Fiber Optic Terminal Box is designed for the final access segment of an optical distribution network. In a typical FTTH project, the outside drop cable reaches the NID first, and the indoor side continues toward an ONU, ONT, wall outlet or customer distribution point.
Instead of leaving fiber splices or connector handoffs exposed, this enclosure provides a protected location for fiber routing, splice tray placement, adapter installation and service-loop management. It helps technicians define a clean responsibility boundary and gives maintenance teams a practical test access point.
Best-Fit Project Use
- Single-family FTTH service handoff
- FTTB or small commercial building demarcation
- Outdoor drop cable transition before indoor cabling
- ISP access networks using GPON or XGS-PON architecture
- Wall-mounted or pole-mounted fiber access points
Technical Specifications
| Product Name | NID Fiber Optic Terminal Box |
|---|---|
| Part Number | GL-NID01-LGX |
| Product Category | Outdoor Fiber Terminal Box / Fiber Optic Termination Box |
| Dimensions | 251.22 × 261.26 × 75 mm |
| Color | Dark grey |
| Housing Material | ABS+PC |
| Protection Level | IP65 |
| Operating Temperature | -40°C to +85°C |
| Ports | 1 in / 1 out |
| Cable OD Range | Round cable: 3 mm to 16.2 mm; flat cable: 2 mm to 4.5 × 8.1 mm |
| Adapter / Panel Options | Simplex SC, duplex LC or MTP adapter configuration according to project BOM |
| Max Install Tray Number | 1 tray |
| Flame Retardant Performance | Non-flame retardant |
| UV Rated | Yes |
| Mounting Method | Wall mounting or pole mounting |
Core Design Advantages
Compact Outdoor Housing
The ABS+PC housing is built for outdoor service access points where installers need a compact terminal box with cable entry protection and sufficient internal routing space.
Reusable Mechanical Sealing
The mechanical sealing structure supports repeated opening during maintenance, inspection or customer-side service changes while keeping the enclosure practical for field work.
LGX-Oriented Flexibility
The LGX concept makes it easier to confirm different adapter panel requirements, such as SC, LC or MTP, instead of locking the project into only one connector layout.
Fiber Slack Management
Internal storage space helps protect service-loop fiber, reduce sharp bending and leave enough reserve length for future repair or re-termination.
Splicing Tray Option
The box can be configured with a splice tray layout for single-fiber splicing, mass fusion or project-specific splice management depending on the selected version.
Wall / Pole Deployment
Wall and pole mounting support common FTTH building entries, exterior telecom handoff points and small access network deployments
Internal Fiber Management
The internal layout is designed around a simple field workflow: bring in the outside cable, secure the cable strength member or jacket, route the fiber into the tray area, complete splicing or adapter termination, then store remaining fiber without excessive bending.
- Separate entry and exit path for provider-side and customer-side cables
- Space for splice tray or adapter-panel configuration
- Rear fiber entry or exit possible through grommet positions
- Service-loop storage for future maintenance and rework
- Grounding post option can be confirmed when project wiring requires it
- Label position helps identify customer line, port number and route information

Open internal structure for fiber routing, tray placement and service-loop storage.
Splicing and Grounding Detail
24-Fiber Splicing Option

The 24-fiber tray image is useful when the project needs higher splice organization inside a compact outdoor NID enclosure.
12-Fiber Splicing Option

The 12-fiber option is suitable for smaller access points, single customer drops or lower-fiber-count handoff locations.
Ground Post Detail

For projects requiring bonding or grounding confirmation, include the grounding requirement clearly in the BOM and installation checklist.
Dimension Drawing
The dimension drawing helps engineers confirm wall space, pole bracket position, conduit route and clearance before site installation.

Installation Guide for Field Teams
A clear installation process reduces rework and protects optical performance. The following checklist can be used during wall or pole mounting, incoming cable preparation and final handoff inspection.
Confirm Version
Check whether the order requires LGX adapter panel, splice tray, ONU space, grounding post or a custom loaded configuration.
Prepare Cables
Confirm cable OD, remove the jacket carefully, protect the buffer tube and route the cable through the correct grommet or conduit entry.
Fix and Route
Secure the cable, keep routing smooth, avoid tight bends and store slack fiber in the designed management area.
Seal and Label
Close the enclosure, check the mechanical seal, label the customer line and record port, splice and test information for handoff.
Application Layers
Residential FTTH Drop Handoff
Installed on the outside wall of a home, the NID box protects the provider drop cable and provides a clear transition point before indoor fiber routing.
Commercial Building Entry
For small offices, shops and light commercial sites, it can provide a neat fiber handoff before the cable enters a telecom room, router area or ONT location.
FTTx Access Network Upgrade
When legacy copper access is replaced by fiber, the NID enclosure helps standardize the outdoor demarcation point and simplify future fault isolation.
Small Cell and Campus Fiber Route
The outdoor enclosure can be used as a compact protected fiber point for access, camera, Wi-Fi AP or small-cell route handoff depending on project design.

How to Specify the Right NID Box
| RFQ Item | What to Confirm | Why It Matters |
|---|---|---|
| Internal Version | LGX / splicing / ONU / custom layout | Determines tray, adapter panel and internal component cost. |
| Adapter Type | SC simplex, LC duplex, MTP or unloaded | Prevents mismatch between the field connector and installed panel. |
| Cable Type | Round cable 3–16.2 mm or flat drop cable 2–4.5 × 8.1 mm | Ensures the selected grommet and cable entry match the job site cable. |
| Splice Capacity | 12-fiber, 24-fiber or project-specific tray requirement | Affects internal routing space and handoff documentation. |
| Mounting | Wall, pole, bracket or conduit route | Helps prepare the correct accessories and installation method. |
| Grounding | Required / not required | Important when metallic strength members, tracer wire or project standards require bonding. |
| Labeling | Port map, customer ID, route name, QR label or neutral label | Improves service handoff, fault tracing and future maintenance. |
Incoming Inspection and Handoff Checklist
Before Installation
- Confirm model and housing color
- Check IP65 sealing parts
- Confirm adapter or tray loading
- Verify wall/pole accessories
During Installation
- Match cable OD with grommet
- Keep fiber bend radius controlled
- Secure cable strength member
- Protect unused openings
Before Handoff
- Clean connector end faces
- Record port and splice ID
- Attach customer-side label
- Keep photos for as-built records
Quotation Information Needed
To receive a comparable quotation, send the exact required configuration instead of only asking for a general NID box price.
| Required Information | Example |
|---|---|
| Model | GL-NID01-LGX |
| Quantity | Sample order / project batch / annual demand |
| Loading Type | Unloaded / SC adapter / LC adapter / MTP / splice tray / custom BOM |
| Cable Type and OD | Round 3–16.2 mm or flat 2–4.5 × 8.1 mm |
| Mounting Method | Wall / pole / conduit entry / special bracket |
| Label and Packaging | Neutral label / OEM label / carton label / project label |
| Destination Country | For freight and delivery planning |
FAQ
Q: What is a NID fiber optic terminal box used for?
A: It is used as the protected demarcation point between the service provider fiber drop and the customer-side fiber route. It can hold fiber routing, splicing or adapter connection components inside an outdoor enclosure.
Q: What is the model number of this NID box?
A: The listed part number is GL-NID01-LGX.
Q: What material is used for the housing?
A: The housing material is ABS+PC, with dark grey color listed for this model.
Q: Can this NID box be installed outdoors?
A: Yes. The product is listed with IP65 protection and UV-rated outdoor use. Correct sealing, cable entry matching and mounting are still required for field reliability.
Q: Which cable sizes can be used?
A: The listed cable range is round cable from 3 mm to 16.2 mm and flat cable from 2 mm to 4.5 × 8.1 mm.
Q: What adapter options should I confirm?
A: Confirm whether the project needs simplex SC, duplex LC, MTP or unloaded LGX configuration. Also confirm whether the connector polish should be UPC or APC for the optical link.
Q: Is this the same as an ONU enclosure?
A: Not always. A NID enclosure may use a similar housing, but LGX, splicing and ONU versions can have different internal structures. Confirm the required version before quotation.

Our Quality Promise
Comprehensive 3-Year Warranty
We confidently back all our products with a 3-year warranty. Our specific service policy is: within one year for quality issues, we take full responsibility for returns; within two years, for replacements; and within three years, for repairs.
Clear & Competitive MOQ
We welcome both trial and bulk orders. Our standard Minimum Order Quantity (MOQ) is 50 units. We also offer free samples for testing to help you evaluate our quality with confidence.
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We guarantee delivery within 10 days for standard items. Our logistics advantage includes cost-effective door-to-door service to simplify shipping for you.
Our Foundation
Backed by 18 years of experience since 2008, we control quality from our own factory, accept OEM/ODM requests, and maintain ready stock for wholesale. We focus on delivering the optimal balance of price and quality directly to end customers worldwide.
Your trust is our priority. Partner with us for dependable fiber optic solutions supported by clear promises.
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