Tightly Buffered Fiber Optic Patch Cord
A tightly buffered fiber optic patch cord is a factory-assembled jumper that turns raw fiber into a ready-to-use link. Each strand is coated with a 900 μm buffer, terminated at both ends with precision connectors, and tested before it leaves the production line. Unlike field-terminated cables, a patch cord arrives with guaranteed insertion loss and return loss figures stamped on the label, so network teams can plug it in with confidence and move on. Available in single-mode and multimode versions with LC, SC, ST, or FC interfaces, the patch cord is the universal building block of equipment rooms, data centers, and fiber distribution frames. Jacket options range from standard PVC to low-smoke zero-halogen compounds, matching the fire-safety rules of plenum and riser spaces. Its job is simple: connect active devices, patch panels, and test instruments quickly, reliably, and without guesswork.
Applications
Data center interconnects: Links top-of-rack switches to servers and storage arrays, where short, clean jumpers keep airflow and cable management tidy.
Optical distribution patching: Bridges distribution frames and terminal equipment when reconfiguring circuits or adding capacity to existing links.
Test and measurement setups: Serves as reference leads for OTDR, power meters, and light sources, where stable low-loss jumpers are essential for accurate readings.
FTTH customer premises: Connects the optical network terminal to wall outlets or routers in subscriber homes and small offices.
Transmission gear hookups: Interfaces routers, switches, and DWDM equipment in central offices and carrier POPs.
Emergency link replacement: Kept on hand as spares, allowing a failed jumper to be swapped in minutes instead of waiting for a new build.
Advantages
Guaranteed performance per label: Every cord ships with measured insertion loss and return loss values, removing the uncertainty of on-site termination.
Precision-polished connector faces: Factory polishing and inspection deliver clean end faces that keep back-reflection low, protecting sensitive transmitter optics.
Long mating life: Quality ferrules and strain boots survive thousands of plug-unplug cycles in busy racks before needing replacement.
Bend-tolerant fiber core: Modern patch cords use bend-insensitive fiber, so tight wraps near equipment or under floors do not spike attenuation.
Polarity made simple: Duplex cords follow standard keying arrangements, so transmit and receive paths line up correctly the first time.
Dust-cap protected ends: Sealed connector tips prevent contamination during shipping, storage, and handling between installations.
Immediate deployment: No stripping, splicing, or polishing on site means new links are live within seconds of being plugged in.
Traceable test records: Individual test data accompanies each production batch, giving maintenance teams a documented baseline for future troubleshooting.
Key attributes
|
Brand Name |
Sheng Tang |
Model Number |
Gjfjv |
|
Type |
indoor fiber optic cable |
Place of Origin |
Guangdong, China |
|
Number of Conductors |
≥ 10 | Model Number | Gjfjv |
| Loose tube | PBT | Number of C | ≥ 10 |
| Fiber Type | single mode/multimode | Sheath | PVC, LSZH, TPU |
| Fiber count | 2-48 Cores | MOQ | 2000Meter/Meters |
| Application | Telecommunication, Aerial, Duct | port | GUANGZHOU |
| Place of Origin | Guangdong, China (Mainland) |
Packaging and delivery
| Packaging Details | Gjfjv fiber optic cable 's packing way: wooden drum or wooden iron drum 1000 m to 3000 m per drum, or any length size as customer required. | Port of dispatch | GUANGZHOU, SHENZHEN |
| Selling Units | Single item | Single package size | 20X25X10 cm |
| Single gross weight | 2.000 kg | Packaging examples |  |
Supply capacity
| Supply Ability | 10000 kilograms per Month |
Lead time
| Quantity (meters) | 1 - 4000 | 4001 - 90000 | 90001 - 1000000 | > 1000000 |
| Lead time (days) | 5 | 15 | 30 | To be negotiated |
Customization options
| Option | Min. order: | Customization fee |
|
Customized logo As requested |
1000 meters | -- |
|
Customized packaging As requested |
1000 meters | -- |
|
Graphic customization As requested |
1000 meters | -- |
Company Information
Packaging & Shipping
FAQ
Q1: How do I choose between LC and SC connectors?
LC is the standard choice for high-density racks because its small form factor fits more ports per panel. SC remains common on older gear and outdoor terminals. Pick the connector that matches the device port; adapters can bridge mismatches temporarily.
Q2: What insertion loss and return loss values are considered good?
For single-mode cords, insertion loss under 0.3 dB and return loss above 50 dB are typical quality targets; multimode cords usually specify insertion loss under 0.3 dB with return loss above 30 dB. Lower insertion loss and higher return loss are better.
Q3: Can a single-mode patch cord be used on a multimode link, or vice versa?
No. Mixing fiber types causes high loss and unreliable transmission. Single-mode cords pair with single-mode transceivers, and multimode cords with multimode gear. When in doubt, match the cable jacket color code used by the site.
Q4: What lengths are available for patch cords?
Standard lengths range from 0.5 m to 30 m, with custom lengths cut to exact distances between racks or equipment shelves. Pre-arranged lengths in stock help avoid coil clutter at the patch area.
Q5: How should connector end faces be cleaned and maintained?
Inspect with a scope, then clean with dry or wet cleaning tools made for fiber connectors. Always replace the dust cap when the cord is unplugged. Dirty end faces are the leading cause of intermittent link errors and are easily prevented.
Tightly buffered fiber optic patch cords are offered in simplex and duplex formats, single-mode and multimode, with LC, SC, ST, or FC connectors in any combination. Custom lengths, jacket colors, and polarity arrangements can be specified for site-standard consistency.