500m OTDR Launch Cable Box SC/UPC to SC/UPC | Single-Mode Fiber OTDR Dead Zone Eliminator

500m OTDR Launch Cable Box SC/UPC to SC/UPC – Single-Mode Fiber OTDR Dead Zone Eliminator

The 500m OTDR launch cable box (SC/UPC to SC/UPC) is an essential accessory for accurate OTDR fiber testing. By providing a 500-meter single-mode fiber lead-in, this launch cable box effectively eliminates the OTDR's near-end dead zone, allowing technicians to accurately characterize the first connector, splice, and fiber section immediately after the OTDR port — which would otherwise be hidden in the instrument's dead zone.

Without a launch cable, the OTDR dead zone can mask the first 20–50 meters of fiber, hiding critical connectors and splices. The 500m launch cable box solves this problem and ensures complete, accurate fiber link characterization from the very first meter.

🔧 Key Features

• 500m Fiber Length – Sufficient to overcome the dead zone of most professional OTDRs
• SC/UPC to SC/UPC Connectors – Standard connector type for universal OTDR compatibility
• Single-Mode Fiber (G.652D) – Compatible with all SM OTDRs and fiber networks
• Low Insertion Loss – High-quality connectors for minimal signal loss
• Compact Reel Housing – Neat, tangle-free fiber storage for easy field use
• Durable Construction – Robust housing for repeated field use

📋 Technical Specifications

🏗️ Applications

• OTDR near-end dead zone elimination
• FTTH / FTTB fiber network acceptance testing
• Telecom fiber link characterization and commissioning
• Splice and connector loss measurement near the OTDR port
• Fiber optic network maintenance and troubleshooting

📦 Package Contents

• 1× 500m OTDR Launch Cable Box (SC/UPC to SC/UPC)
• Protective end caps

❓ Frequently Asked Questions

Q: What is an OTDR launch cable box and why do I need one?
A: An OTDR launch cable box (also called a dead zone box or fiber ring) provides a length of fiber between the OTDR and the fiber under test. This eliminates the OTDR's near-end dead zone, allowing you to accurately measure the first connector, splice, and fiber section that would otherwise be hidden in the dead zone. It is essential for accurate FTTH and telecom fiber acceptance testing.

Q: Is 500m enough to eliminate the dead zone on my OTDR?
A: For most professional OTDRs, 500m is sufficient to overcome the event dead zone (typically 1–10m) and attenuation dead zone (typically 5–50m). For OTDRs with longer dead zones, consider our 1000m or 2000m launch cable boxes.

Q: Is this launch cable compatible with my OTDR?
A: Yes. The SC/UPC to SC/UPC connector is the most common OTDR port type and is compatible with virtually all professional OTDR brands including TEKCN, HSV, EXFO, JDSU, Anritsu, and others.

Q: Can I use this launch cable with APC connectors?
A: This model uses SC/UPC connectors. For APC connector compatibility, please see our SC/APC to SC/APC launch cable box (sold separately).

Order the 500m OTDR launch cable box today and get worldwide shipping, competitive pricing, and expert support from our fiber optic specialists.