Where a single-fiber or duplex cable lacks capacity and a 12-sub-unit breakout harness is overkill, this 4-to-24 core bundle cable hits the sweet spot for most enterprise horizontal and backbone runs. A 4-core OM4 GJFJV, for instance, can serve an entire four-workstation cluster from a single conduit entry point, while a 24-core single-mode version handles inter-floor backbone links in mid-rise commercial buildings.
The cable structure uses 0.9 mm color-coded tight-buffered fibers laid up around a central non-metallic strength member (fiberglass rod or aramid yarn), then bound with aramid yarn reinforcement and sheathed in a flame-retardant PVC or LSZH outer jacket. No gel fill is used - fibers can be stripped and terminated directly, eliminating the cleaning step common in loose-tube designs.
| Fiber Grade | Core / Clad | Min. Modal BW (MHz·km) | 1G Ethernet | 10G Ethernet | 40 / 100G SR4 |
|---|---|---|---|---|---|
| OM2 | 50/125 µm | 500 | 600 m | 82 m | - |
| OM3 | 50/125 µm | 2,000 (laser-opt.) | 1,000 m | 300 m | 100 m |
| OM4 | 50/125 µm | 4,700 (laser-opt.) | 1,000 m | 550 m | 150 m |
| OM5 | 50/125 µm | 3,500 @ 953 nm | 1,000 m | 550 m | 150 m (SWDM ×4) |
Reach values per IEEE 802.3 / TIA-568.3-D. Actual performance may vary with connector quality and cable routing conditions.
| Parameter | Specification |
|---|---|
| Model / Standard | GJFJV per YD/T 1258 & IEC 60794-2 |
| Fiber Type | OM2 / OM3 / OM4 / OM5 multimode & G.652D single-mode |
| Core Count | 4 / 8 / 12 / 16 / 24 fibers |
| Individual Fiber Buffer | 0.9 mm tight-buffered, color-coded per TIA-598C |
| Outer Diameter | 4.8 mm (4-core) - 8.0 mm (24-core); intermediate OD customizable |
| Outer Jacket Material | PVC (standard) / LSZH (low-smoke zero-halogen, IEC 60332-1) |
| Central Strength Member | Non-metallic FRP rod |
| Reinforcement | Aramid yarn (Kevlar®) strength layer |
| Filling Material | None - direct termination ready |
| Long-term Tensile Strength | 80 N |
| Short-term Tensile Strength | 600 N |
| Min. Bend Radius (long-term) | ≥ 20 × OD |
| Min. Bend Radius (short-term) | ≥ 10 × OD |
| Operating Temperature | −30°C to +80°C |
| Storage Temperature | −40°C to +80°C |
| Net Weight | 19 – 60 kg/km (varies with core count & OD) |
| Standard Reel Length | 500 m / 1,000 m / custom |
| Jacket Color Options | Orange (OM2) · Aqua (OM3) · Violet (OM4) · Lime (OM5) · Yellow (SM) |
| Compatible Connectors | LC / SC / FC / ST / E2000 - all standard 0.9 mm platforms |
| Feature | Bundle Cable GJFJV (This product) |
Simplex / Duplex Tight-buffered |
Sub-unit Branch Distribution |
High-density 36–96 Core |
|---|---|---|---|---|
| Core Count Range | 4 – 24 | 1 – 2 | 4 – 24 | 36 – 96 |
| Outer Diameter | 4.8 – 8.0 mm | 0.9 – 3.0 mm | 7.0 – 12.0 mm | 12.0 – 22.0 mm |
| Single-jacket Pull | One pull, many fibers | Multiple pulls needed | Pre-fanned sub-units | Bulk pull, fan-out later |
| Direct Termination | 0.9 mm TB fibers | 0.9 mm TB fibers | Sub-unit pre-fanned | Requires fan-out kit |
| Best For | Offices, classrooms, horizontal risers | Patch cords, FTTH drop | Campus backbone, IDF runs | Data center trunking |
| Relative Cost / Core | Low | Medium | Medium | Low (bulk) |
Office Horizontal Cabling
A single 4.8 mm, 4-core GJFJV replaces four separate patch cables between the IDF and workgroup switches, cutting conduit fill and simplifying cable management significantly.
Classrooms & Lecture Halls
OM3 or OM4 bundle cables run from the MDF to each classroom AV switch node. A single 8-core run can simultaneously serve projector feeds, interactive panel uplinks, and student access points.
Hospitals & Healthcare Facilities
LSZH-jacketed bundle cable meets the strict low-smoke requirements for occupied medical areas. 12–24 core SM variants support PACS imaging, VoIP, and nurse-call systems from a single cable route.
Commercial & Retail Buildings
Neat routing in suspended ceilings and cable trays for POS systems, security cameras, and Wi-Fi 6E access point uplinks - all from one conduit pull per zone.
Horizontal Riser & Indoor Backbone
Floor-to-floor vertical runs within buildings where a loose-tube outdoor cable would be over-engineered. The 600 N short-term pull rating handles vertical pulls in standard riser conduits.
Legacy Copper Upgrade
A 4-core OM4 bundle cable occupies roughly the same conduit space as a Cat6A cable while delivering 10G bandwidth over 550 m - ideal for staged copper-to-fiber migration without conduit re-work.
- 4–24 cores in a single compact jacket - one pull serves multiple fiber links
- 0.9 mm color-coded tight-buffered fibers per TIA-598C - directly terminable
- No gel filling - no cleaning step required before connector installation
- Supports OM2 through OM5 multimode and G.652D single-mode
- PVC or LSZH outer jacket - choose standard or flame-retardant compliance
- Non-metallic FRP central strength member - safe for EMI-sensitive environments
- Aramid yarn reinforcement - 600 N short-term pull rating for vertical conduit runs
- Operating range −30°C to +80°C - suits unheated riser shafts and plant rooms
- Compact OD (4.8–8.0 mm) - low conduit fill, fits alongside existing cabling
- Custom core count, jacket color, and reel length available for OEM orders
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1Observe bend radius: maintain ≥ 20× OD for permanent routing (≥ 96 mm for a 4.8 mm cable, ≥ 160 mm for 8.0 mm). Use sweep bends or conduit elbows - never kink the cable around sharp corners.
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2Respect pull tension: pulling tension must stay ≤ 80 N long-term and ≤ 600 N during the pull. For vertical riser pulls, always calculate the cable weight per metre × run length to confirm you remain within limits.
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3Use conduit, tray, or trunking: route through appropriate pathways to protect the jacket. Avoid direct stapling across the cable body - use cable saddles or P-clips that contact the outer jacket only.
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4Fan-out at termination points: at patch panels or wall outlets, allow sufficient slack (≥ 1 m) before breaking out individual 0.9 mm fibers. Use a fan-out/furcation kit to transition the bundle to individual connector boots cleanly.
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5Protect unused fiber ends: fit dust caps on all unterminated fiber ends immediately after stripping. Label the reel end and route end with the circuit ID before the cable is buried in trunking.
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6Cold-weather handling: if installing below −10°C, pre-warm the cable reel at room temperature for a minimum of 4 hours. Both PVC and LSZH compounds become brittle when cold and risk jacket cracking if bent aggressively.
Q1: How does the GJFJV bundle cable differ from a mini bundled cable or a distribution cable?
The GJFJV (indoor bundle cable) occupies the middle ground: it carries 4–24 color-coded 0.9 mm tight-buffered fibers in a single compact jacket (4.8–8.0 mm OD), making it more economical and neater than pulling multiple simplex cables while being far easier to route and terminate than a large-diameter distribution harness with pre-fanned sub-units. Mini bundle cables typically max out at 4 cores; high-density distribution cables begin at 36 cores and require fan-out hardware. The GJFJV is the go-to choice for most standard horizontal runs.
Q2: Which fiber grade should I specify for a 10G office horizontal cabling project?
For 10G runs up to 100 m, OM3 is cost-effective and fully compliant. If you want headroom for future 40G/100G SR4 upgrades without re-cabling, specify OM4 - it supports 10G up to 550 m and 100G SR4 up to 150 m. OM5 is the best choice if you anticipate SWDM (Shortwave Wavelength Division Multiplexing) to deliver 100G over a single duplex OM5 link. For single-mode, G.652D is appropriate for inter-building backbones or any run exceeding 500 m.
Q3: When should I specify LSZH instead of PVC, and is there a cost difference?
Specify LSZH whenever the installation is in an enclosed, occupied space where people cannot quickly evacuate - hospitals, schools, airports, metro stations, shopping centers, and high-rise office buildings. LSZH compounds, when ignited, emit significantly less toxic smoke and no halogen gases compared to PVC, reducing harm to occupants and fire crews. LSZH cables do carry a modest cost premium (~10–20%) but are increasingly required by local building codes and certifications (IEC 60332-1). For unoccupied plant rooms, cable ducts, and external pathways PVC is acceptable.
Q4: Can the individual fibers be directly terminated with standard LC or SC connectors?
Yes. Each fiber in the bundle is a standard 0.9 mm tight-buffered strand - the same diameter used in all LC, SC, FC, and ST pigtails. Once the outer jacket and strength members are stripped back and the individual fiber is accessed, it accepts any 0.9 mm crimping boot directly. No gel cleaning, no diameter adapters, and no special tooling beyond a standard fiber optic termination kit (stripper, cleaver, connector, epoxy or mechanical crimp) is required.
Q5: What custom options does Glory Optical offer for OEM orders?
We support full OEM/ODM customization for bundle cables, including:
Non-standard core counts (e.g. 6, 10, 20 fibers) or fiber mixing (SM + MM in one jacket)
Custom jacket colors beyond the standard OM/SM color code
Custom reel lengths from 200 m sample spools to 5 km production reels
Pre-printed meter markings or sequential footage markings on the jacket
Brand name and logo printing on reel labels and outer carton
Factory-terminated fan-out assemblies with connectors of your choice
Minimum order quantity is 1 reel for standard configurations; samples are available on request.
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.
Fast & Reliable Logistics
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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