BWNFiber (Ningbo Bwinners Optical Tech Co., Ltd.) has received Product Pre-Qualification (PQ) Approval from Qatar General Electricity & Water Corporation (KAHRAMAA) for its Optical Terminal Box (OTB) products â becoming one of the few China-based manufacturers on the KAHRAMAA approved vendor list for utility fiber network projects. (KAHRAMAA Approved Optical Terminal Box)
The approval covers BWNFiber’s NB/FOB/48 and NB/FOB/24 Optical Terminal Boxes under KAHRAMAA Specification ES-EST-P1/S1, clearing these products for deployment in Qatar’s electricity distribution network and utility telecommunications infrastructure.
What KAHRAMAA PQ Approval Means
KAHRAMAA (Qatar General Electricity & Water Corporation) is the sole transmission and distribution system owner for Qatar’s electricity and water networks. Its pre-qualification process is rigorous: products must pass technical compliance review, factory capability assessment, and performance testing against KAHRAMAA’s own engineering specifications.
Getting PQ approval means three things for project owners and EPC contractors:
- The product is pre-vetted. You don’t need to run a separate qualification process â the OTB is already approved for KAHRAMAA-governed projects.
- Compliance is documented. ES-EST-P1/S1 covers outdoor environmental resistance, fiber management capacity, mechanical integrity, and long-term reliability â all verified.
- Procurement risk drops. Using an approved vendor eliminates the chance of rejection during project inspection and handover.
For context, Qatar’s fiber infrastructure operates under an open-access regulatory framework managed by the Communications Regulatory Authority (CRA). The CRA’s Reference Offer for Fiber Access defines termination points â Fiber Termination Box (FTB), Optical Distribution Frame (ODF), and Building Distribution Box (DB) â as regulated infrastructure. KAHRAMAA’s approval aligns with this framework for utility-owned fiber assets.

Approved Products & Technical Specifications
| Specification | NB/FOB/48 | NB/FOB/24 |
|---|---|---|
| Capacity | 48 fibers | 24 fibers |
| Dimensions | 415 Ã 350 Ã 135 mm | 415 Ã 350 Ã 135 mm |
| Material | High-impact ABS / PC+ABS | High-impact ABS / PC+ABS |
| Protection Rating | IP65 (outdoor rated) | IP65 (outdoor rated) |
| Mounting | Wall-mount / Pole-mount | Wall-mount / Pole-mount |
| Splice Tray Capacity | Up to 48 splices (heat-shrink) | Up to 24 splices (heat-shrink) |
| Splitter Compatibility | 1Ã4, 1Ã8, 1Ã16 mini PLC | 1Ã4, 1Ã8, 1Ã16 mini PLC |
| Connector Interface | SC/APC, SC/UPC, LC/APC | SC/APC, SC/UPC, LC/APC |
| Cable Entry | 2Ã oval ports + 4Ã round ports | 2Ã oval ports + 4Ã round ports |
| Compliance | KAHRAMAA ES-EST-P1/S1, IEC 61753-1 | KAHRAMAA ES-EST-P1/S1, IEC 61753-1 |
Both models use a hinged, weather-sealed enclosure designed for Qatar’s extreme outdoor conditions â summer ambient temperatures regularly exceed 45°C, and dust/sand ingress is a constant challenge for unsealed enclosures. The IP65 rating means the box is dust-tight and protected against low-pressure water jets from any direction.

Qatar’s Fiber & Utility Network Landscape
Qatar’s fiber infrastructure market is growing on two parallel tracks:
Track 1 â National Broadband (Q.NBN). Qatar National Broadband Network, regulated by the CRA, operates the country’s passive fiber infrastructure. Q.NBN provides wholesale access to service providers including Ooredoo Qatar and Vodafone Qatar. Their FTTH model â defined in the MOTC Open Access Megaprojects framework â requires Fiber Termination Boxes at every building entry point, Distribution Boxes at aggregation points, and Optical Distribution Frames at central offices.
Track 2 â Utility Fiber (KAHRAMAA). KAHRAMAA operates its own fiber backbone for electricity distribution network communications â substation telemetry, SCADA systems, smart grid monitoring, and protection signaling. This fiber runs alongside power infrastructure, often in harsher environments than telecom-only fiber. OTBs deployed here must meet utility-grade specifications, not just standard telecom requirements.
The two tracks overlap in smart city and megaproject deployments â Lusail City, The Pearl, Msheireb Downtown Doha, and the upcoming FIFA World Cup 2030 infrastructure buildout all require coordinated fiber planning between Q.NBN and KAHRAMAA. BWNFiber’s dual-use OTB design means one product family serves both ecosystems.

Where These OTBs Are Deployed
A KAHRAMAA-approved Optical Terminal Box isn’t just for one application. In Qatar’s utility fiber architecture, these enclosures serve multiple functions:
- Substation fiber termination â connecting protection relays and RTUs between substations over fiber
- Electricity distribution automation â terminating fiber drops for feeder monitoring and fault detection equipment
- Smart grid communications â providing fiber access points for AMI (Advanced Metering Infrastructure) backhaul
- Street cabinet fiber distribution â managing fiber connections in roadside cabinets serving multiple utility assets
- Building entry points â where utility fiber enters a facility and transitions to indoor cabling
- FTTH last-mile â serving as the outdoor termination point before the drop cable enters residential or commercial premises
Each application has different fiber count requirements, which is why we offer both 24-port and 48-port configurations. The 24-port box typically handles individual building or pole-mounted drops; the 48-port version serves higher-density aggregation points and substation cabinets.

Why KAHRAMAA Approval Matters for Procurement
If you’re an EPC contractor bidding on a KAHRAMAA-governed project, or a system integrator sourcing OTBs for a Qatar utility deployment, here’s what this approval changes:
1. Bid compliance is faster. Instead of submitting a vendor qualification package with your bid, you reference an already-approved product. This shortens bid preparation time and reduces the chance of technical disqualification.
2. Inspection and handover are smoother. KAHRAMAA inspectors recognize approved products. When they see an NB/FOB/48 with the correct markings, the approval check is a formality â no back-and-forth over test reports, material certificates, or factory audits for that product.
3. Supply chain is predictable. BWNFiber manufactures these OTBs in-house in Ningbo, China, with consistent lead times and the ability to hold buffer stock for project timelines. Unlike sourcing from multiple unqualified vendors, you’re working with one approved manufacturer with documented QA processes.
4. Post-installation support exists. If a KAHRAMAA inspector raises a question about an installed OTB three years after project handover, you have a manufacturer who understands the approval context and can provide traceable documentation.
I’ve seen projects where using non-approved products led to 6-month delays during inspection â the contractor had to rip out and replace hundreds of boxes because the inspector couldn’t verify compliance. Don’t be that contractor.
BWNFiber OTB Manufacturing: What Sets Us Apart
We’re not a trading company reselling someone else’s boxes. BWNFiber (Ningbo Bwinners Optical Tech Co., Ltd.) manufactures Optical Terminal Boxes in our own facility, which means:
- Direct control over materials and assembly. The ABS/PC+ABS compound, the gasket seal formulation, the splice tray design â we spec it, we mold it, we assemble it. No reliance on third-party factories with unknown QC standards.
- Customization without MOQ penalties. Need a specific connector configuration? Different cable entry layout? Custom silk-screening for project identification? We do it on our line, not through a middleman.
- Traceability from raw material to shipped product. Each OTB batch is traceable to material lot, mold machine, assembly shift, and QC inspector. When a KAHRAMAA project requires documentation, we have it.
- Consistent pricing. No surprises when you reorder for Phase 2 of the project. We control our costs because we control our production.

We support OEM, private label, and project-based customization for telecom operators, utilities, EPC contractors, and system integrators. Our OTBs are already deployed across Africa, the Middle East, Europe, and Latin America in both telecom and utility applications.

Frequently Asked Questions
What is a KAHRAMAA Approved Optical Terminal Box?
A KAHRAMAA Approved Optical Terminal Box is a fiber termination enclosure that has passed the Qatar General Electricity & Water Corporation’s Product Pre-Qualification (PQ) process under specification ES-EST-P1/S1. It is pre-approved for use in KAHRAMAA-governed electricity distribution network fiber projects, eliminating the need for project-by-project product qualification.
What’s the difference between OTB and FTB?
OTB (Optical Terminal Box) and FTB (Fiber Termination Box) refer to the same category of product â an enclosure that terminates incoming fiber cables and provides connectorized output ports. In Qatar, the CRA’s regulatory documents use “FTB” for the telecom context, while KAHRAMAA’s utility specifications use “OTB.” Functionally, they serve the same role: managing fiber splices, housing splitters, and providing connector interfaces at network termination points.
What fiber counts are available for KAHRAMAA-approved OTBs?
BWNFiber’s KAHRAMAA-approved models include 24-fiber (NB/FOB/24) and 48-fiber (NB/FOB/48) configurations. Both support internal mounting of 1Ã4, 1Ã8, or 1Ã16 mini PLC splitters to multiply the number of served endpoints from a single feeder fiber. Custom configurations with different fiber counts can be submitted for project-specific approval.
Are these OTBs suitable for Qatar’s outdoor environment?
Yes. Both approved models carry IP65 protection ratings â dust-tight and protected against water jets. The enclosure material (PC+ABS) is UV-stabilized for Gulf region solar exposure, and the gasket seal is rated for the temperature cycling typical of Qatar’s desert climate (0°C winter nights to 50°C+ summer days on exposed surfaces). This is not a generic indoor box being marketed as “outdoor” â the ES-EST-P1/S1 compliance specifically verifies outdoor environmental performance.
How do I specify these OTBs in a KAHRAMAA project tender?
Reference BWNFiber (Ningbo Bwinners Optical Tech Co., Ltd.) and product models NB/FOB/48 or NB/FOB/24 in your material submittal. Include the KAHRAMAA PQ approval reference. Our technical team can provide the full compliance documentation package â test reports, material certificates, factory audit records, and the PQ approval letter â for inclusion in your bid submission.
Can BWNFiber supply pre-connectorized OTBs for faster field installation?
Yes. We offer pre-connectorized configurations where pigtails are factory-terminated, tested, and loaded into the splice tray before shipping. Installers splice the incoming feeder cable to the pigtails and close the box â no field connectorization needed. This cuts per-box installation time from roughly 45 minutes to under 15 minutes, which matters when you’re deploying hundreds of boxes across a project.
What’s the lead time for KAHRAMAA-approved OTB orders?
Standard lead time is 3-4 weeks for typical order quantities. For large project volumes (500+ units), we recommend scheduling production slots in advance to guarantee delivery dates. We maintain buffer stock of common configurations for urgent requirements â contact our sales team for current availability.
Get KAHRAMAA-Approved OTBs for Your Qatar Project
BWNFiber is a qualified OTB manufacturer on the KAHRAMAA approved vendor list. We provide:
â KAHRAMAA PQ Approved OTBs â NB/FOB/48 and NB/FOB/24
â Compliant with ES-EST-P1/S1 specification
â IP65 outdoor-rated enclosures
â SC/APC, SC/UPC, and LC/APC connector configurations
â Pre-connectorized options for fast field installation
â OEM, private label, and project customization
â Full compliance documentation package for tender submission
â Also supply: Fiber Distribution Boxes, PLC Splitters, Fiber Splice Closures, Pre-Terminated FTTH Solutions
Contact us for samples, quotations, and compliance documentation:
ð§ [email protected] | ð +86-13615744790 (WhatsApp)
Related Reading:
- Fiber Distribution Box Guide: How to Choose the Right FDB for FTTH
- PLC Splitter Selection Guide: 1Ã2 to 1Ã128
- Pre-Terminated FTTH Solutions for Fast Network Deployment
- Fiber Optic Splitter Box: Complete Guide for FTTH Networks
