Indoor Fiber Optic
Indoor Fiber Optic Cable Manufacturer for Building & Network Infrastructure
Indoor fiber optic cable is used to connect optical equipment, communication rooms, racks, distribution points and network infrastructure inside buildings and other protected environments.
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GJFJH Single-core Optical CableGJFJH Single-core Optical Cable is a high-density, tight-buffered single-core optical cable built for pigtail/patch cord assembly, FTTH indoor drop cabling, and high-density equipment...read more
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GJFJV Indoor Optical CableGJFJV Indoor Optical Cable is a tight buffer fiber optic cable designed with 900μm buffered fibers, aramid yarn reinforcement, and PVC/LSZH/TPU sheath options.read more
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Indoor Gjfjv CableIndoor GJ FJV Cable is a tight buffer indoor fiber optic cable designed with single-mode or multimode optical fibers, aramid yarn reinforcement, and PVC/LSZH/TPU sheath options.read more
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Tightly Buffered Fiber Optic Patch CordTightly Buffered Fiber Optic Patch Cord is an indoor fiber optic cable assembly with 2–48 fiber cores, tight-buffered structure, and single-mode or multimode fiber options.read more
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Jackter Fiber Optic Indoor CableJackter Fiber Optic Indoor Cable is a tight buffer indoor optical cable designed with single-mode or multimode fibers, PVC/LSZH/TPU sheath options, and 2–48 fiber counts.read more
Indoor Fiber Optic Cable Product Range
GJFJH Single-Core Indoor Fiber Cable
A compact indoor optical cable designed for single-core or simple fiber interconnection applications.
GJFJV Multi-Core Indoor Fiber Cable
A multi-core tight-buffered cable designed for indoor distribution and interconnection. It can be configured with different fiber types, core counts, jacket materials and strength members.
Customized Indoor Fiber Cable
For projects requiring a specific structure or configuration, customized cable solutions can be evaluated according to fiber type, core count, jacket, dimensions, marking and packaging requirements.

Specifications of Indoor Fiber Optic
|
Parameter |
Specification Range |
|
Fiber Type |
G652D / OM2 / OM3 / OM4 |
|
Fiber Count |
1 – 144 cores |
|
Cable Structure |
Tight Buffer / Distribution / Breakout |
|
Tensile Strength |
200 – 1000 N |
|
Jacket Material |
LSZH (Low Smoke Zero Halogen) |
|
Flame Retardant |
IEC 60332 compliant |
|
Temperature Range |
-20°C to +60°C |
|
Bend Radius |
Small bending radius |
|
Installation Methods |
Tray / Raceway / Wall / Ceiling |
|
Standards |
IEC / CPR / RoHS |
Choose by Installation Environment

The installation environment should be the first consideration when selecting an indoor fiber optic cable.
Equipment Rooms & Racks:For connections between switches, optical modules, patch panels and other equipment, a compact and flexible cable construction is generally preferred.
Data Centers:Data center cabling requires attention to fiber type, cable density, bend performance, routing space and fire-performance requirements. Multimode OM3/OM4 and suitable single-mode configurations can be selected according to the network architecture.
Building Backbone:For connections between communication rooms or floors, buyers should consider fiber count, cable structure, installation route and future expansion requirements.
LAN Infrastructure:Indoor fiber can be used for enterprise network backbones and high-bandwidth connections where optical transmission is preferred over copper.
Patch Cord & Pigtail Assembly:Tight-buffered constructions such as GJFJV can be used as base cable for fiber patch cords and pigtail assemblies, depending on the required connector and termination configuration.
Industrial & Controlled Indoor Areas:For protected industrial environments, cable selection should consider mechanical handling, temperature, routing conditions and any applicable fire or material requirements.
Jacket & Fire-Rating Considerations
For indoor fiber procurement, jacket selection should not be treated as a cosmetic option. It can determine whether the cable is appropriate for a particular building or installation area.
LSZH for Indoor Safety Requirements
LSZH jackets are commonly selected where low smoke and halogen-free characteristics are required by the project.


PVC for General Indoor Applications
PVC can be considered for general indoor installations where the project specification allows this material.
OFNR for Riser Applications
Where a riser fire rating is required, an appropriate OFNR-rated cable can be considered according to the applicable building and electrical code.


OFNP for Plenum Applications
Where cables are installed in plenum spaces and the applicable code requires a plenum rating, OFNP-rated construction may be required.
Indoor vs. Outdoor Fiber Optic Cable
Choosing between indoor and outdoor fiber cable depends primarily on the installation environment.
|
Requirement |
Indoor Fiber |
Outdoor Fiber |
|
Building Installation |
✓ |
Possible but not primary |
|
Equipment Room |
✓ |
Not normally required |
|
Data Center |
✓ |
Not preferred |
|
Rack / Raceway |
✓ |
Usually unnecessary |
|
Direct UV Exposure |
Not intended |
✓ |
|
Water Protection |
Limited / application-specific |
Designed for outdoor conditions |
|
Outdoor Aerial Span |
Not suitable |
✓ |
|
Indoor Fire Rating |
Important |
Usually not the primary concern |
Fiber Type Selection: Single-Mode or Multimode?
The choice between single-mode and multimode should be based on the network design rather than simply the required data rate.
Single-Mode Fiber
G.652D and G.657-series fibers can be considered for applications requiring longer transmission distances or compatibility with single-mode optical equipment.
Multimode Fiber
OM2, OM3 and OM4 can be used for suitable short-distance indoor networks, particularly where multimode transceivers and structured data-center architectures are specified.

Manufacturing Process
Our indoor fiber optic cables are manufactured through controlled stages covering fiber preparation, cable construction, jacket application and finished-product testing.
Fiber Preparation
Optical fibers are prepared according to the confirmed fiber type and product specification.
Buffering
The selected tight-buffer or other specified protection is applied around the optical fibers.
Fiber Arrangement
Individual fibers are identified and arranged according to the required core count and cable structure.
Strength Member Application
Aramid yarn or high-strength glass yarn is applied to provide mechanical reinforcement.
Jacket Extrusion
The selected jacket material is extruded to form the required outer dimensions.
Optical & Mechanical Testing
Finished cable is evaluated according to the agreed technical requirements.
Marking & Inspection
Cable identification, dimensions, appearance and marking are checked.
Packaging
Qualified products are packed according to cable length, order requirements and shipping method.
Proper Storage
|
Category |
Requirement |
Purpose |
|
Storage Environment |
Store optical fiber cable drums indoors before use |
Protects cables from moisture, dust, and UV exposure |
|
Drum Position |
Place the cable drum horizontally (sideways) |
Prevents internal stress and maintains cable performance |
|
Placement Warning |
Do not place the drum on its ends (upright position) |
Avoids cable deformation and potential signal loss |

Dedicated Indoor Product Range:The indoor fiber portfolio includes GJFJH and GJFJV configurations for different indoor interconnection and distribution requirements.
Broad Configuration Options:The current product range covers different fiber types, core counts, cable structures and jacket materials, allowing buyers to select according to project requirements.
Manufacturing Capacity:Shengtang reports a 20,000 m² production base and annual sales of approximately 10 million core kilometers, supporting both project-based orders and long-term supply.
International Market Experience:The company reports supplying products to markets including the United States, Japan, South Korea, Southeast Asia, Europe and the Middle East.
Requirement Review:Provide the intended application, fiber type, core count, jacket requirement, cable length and quantity.
Technical Confirmation:Our team reviews the requested configuration and identifies the appropriate indoor cable structure.
Quotation:Receive product pricing together with MOQ, lead time, packaging and shipping information.
Sample Evaluation:Samples can be arranged when the project requires technical approval before mass production.
Production:Production begins after technical specifications and commercial terms are confirmed.
Testing & Inspection:Finished products undergo the agreed quality checks.
Packing & Shipment:Qualified products are packed and dispatched through the selected transportation method.

Packaging & Shipping
Packaging
- Cable Drums:Long-length cable can be wound onto suitable drums for transportation and field deployment.
- Coil Packaging:Shorter cable lengths can be supplied in coils where appropriate.
Shipping Options
- Sea Freight:Suitable for bulk orders and large-scale projects.
- Rail Freight:Available for selected international routes where buyers need a balance between transit time and transportation cost.
- Air Freight:Suitable for samples, small orders or urgent deliveries.

Industry Recognition
Our products are trusted by leading industry players across China, including China Telecom, China Mobile, China Unicom, China Railway Construction Corporation (CRCC), China Eastern Airlines, and PetroChina. These long-term partnerships demonstrate our reliability and competitiveness in serving critical infrastructure and communication sectors.
Certifications
Guangdong Shengtang Optical Fiber Cable & Communication Equipment Co., Ltd. operates under a strict quality management system and has obtained internationally recognized certification, including the SGS ISO 22000:2005, reflecting our commitment to consistent product quality and process control.

FAQ
As one of the most professional indoor fiber optic manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy bulk durable indoor fiber optic in stock here from our factory. Customized orders are welcome.
