The difference is in the ferrule end polish. UPC (Ultra Physical Contact) connectors have a flat, dome-polished end face that provides ≥50dB return loss - suitable for digital data, Ethernet, and general single-mode connections. APC (Angled Physical Contact) connectors use an 8-degree angled polish that achieves ≥60dB return loss by directing back-reflections away from the fiber axis.

Use SC/APC when deploying GPON FTTH networks, CATV analog overlay, or any WDM system where high return loss is specified in the network design. Use SC/UPC for standard telecom, data center, and enterprise fiber connections. COBTEL's sc apc fiber patch cord configuration ships in green housing; SC/UPC ships in blue - making them visually distinct in the field.

Yes. The SC connector is a globally standardized interface defined by IEC 61754-4 and TIA-604. COBTEL's sc sc fiber patch cord mates with any SC-compatible adapter, coupler, or port from any manufacturer - including Corning, CommScope, Panduit, Leviton, Molex, TE Connectivity, Cisco, Juniper, and all major transceiver and active equipment vendors.

Buyers who previously worked with Corning fiber optic patch cords will find COBTEL's optical and mechanical performance directly comparable, at a substantially lower fiber optic patch cord price. Our ferrule geometry tolerances and end-face specifications align with the same IEC standards that Corning and other tier-1 brands use.

Standard stocked lengths include 0.5m, 1m, 1.5m, 2m, 3m, 5m, and 10m. For OEM and project orders, we produce custom lengths from 0.3m up to 100m+ on a per-order basis. Custom lengths carry a standard lead time of 7–14 business days from order confirmation. Minimum order quantities for custom lengths vary by configuration - contact our sales team for specific MOQ and pricing for your project.

Yes. Single-mode fiber has essentially unlimited bandwidth - the data rate on a single-mode link is determined by the transceivers at each end, not the fiber itself. COBTEL's sc singlemode simplex fiber optic patch cord with OS2 9/125µm fiber is fully compatible with 1G, 10G, 25G, 40G, and 100G optical transceivers that use SC interfaces. Our ≤0.2dB insertion loss typically leaves ample headroom in even the tightest 100G link budget specifications.

LSZH stands for Low-Smoke Zero-Halogen. It refers to the outer jacket compound used on COBTEL's fiber optic patch cord cable. In normal PVC-jacketed cables, burning produces dense black smoke and toxic halogen gases (chlorine, bromine) that are hazardous in enclosed spaces and can damage nearby electronic equipment. LSZH jackets release minimal smoke and no halogen gases when exposed to flame - mandatory in many European building codes, transportation infrastructure (rail stations, tunnels, airports), and data center standards.

COBTEL's SC connector assembly is rated for a minimum of 1,000 insertion cycles with no more than 0.2dB change in insertion loss, following IEC 61300-2-2 test methodology. In practice, a properly maintained connector will last the full service life of the network - typically 20+ years. Connector performance degrades primarily from contamination, not mechanical wear. COBTEL includes dust caps on every connector end for exactly this reason.

For standard catalog fiber patch cord sc to sc configurations, our minimum order quantity is 50 pieces. For OEM orders with custom labeling or private-label packaging, the MOQ is typically 500 pieces. We also maintain an in-stock program for high-velocity standard SKUs (1m, 3m, and 5m SC/UPC–SC/APC in single-mode) that allows same-week shipment on orders up to 5,000 pieces.

As a direct fiber optic patch cord factory with no wholesale distributors between us and you, COBTEL's pricing typically sits 20–40% below comparable-quality branded products from European and North American distributors. We achieve this through manufacturing scale, direct raw material procurement, and efficient production - not through compromising on materials or testing. Request a quote with your volume and we'll send current pricing within 24 hours.

Yes. Standard shipments include a batch Certificate of Conformance (CoC) stating that the product was manufactured and tested in accordance with the applicable specification. For OEM customers and project orders, we can provide individual unit test reports showing measured insertion loss and return loss for each patch cord. ISO 9001:2015 registration certificates, RoHS, REACH, and CE declarations are available on request from our sales team.

COBTEL provides a 12-month manufacturing defect warranty on all patch cord products. If you receive a batch with performance issues outside the agreed specification, contact our quality team within 30 days of receipt with a sample return of the affected units for root-cause analysis. Once confirmed as a manufacturing defect, we replace the affected units at no charge - including freight - and provide a corrective action report. As an established optical fiber patch cord supplier serving global markets for over a decade, our reputation for post-sale accountability is part of what customers pay for when they choose COBTEL.