DESCRIPTION
The HTO9O07 Round OTDR Fiber Launch Cable Box is designed for precise and efficient OTDR testing. It eliminates dead zones and provides a complete optical line loss measurement. Its rugged, waterproof housing and compact form make it a dependable tool for field applications. The launch cable box is versatile, accommodating various fiber lengths, ensuring flexibility for diverse network setups.
Feature Details

- Durability: Grade A dustproof and waterproof housing withstands harsh conditions.
- Ease of Use: Auto Purge Valve and latch design simplify operation.
- Capacity: Can house fibers up to 1000 meters, making it suitable for large-scale deployments.
Product Specifications
| Specification | Details |
| Housing Material | ABS Plastic |
| Color | Black |
| Typical Loss | < 1dB @ 1310nm for 1000 meters |
| Operating Temperature | -40°C ~ +55°C |
| Dimensions (L×W×H) | 13.5 × 13.5 × 2.5 cm |
| Weight | 0.15kg (without fiber) |
| Accessories | Climbing hook ×1, Velcro cable tie ×2, Plastic dust cap ×2 |
NOTE: Other special fiber or connectors are available upon request.
Selection Notes
- Typically selected when OTDR testing needs a portable launch/delay section to reduce dead-zone effects for connector evaluation, and field work benefits from a sealed, rugged housing that tolerates repeated outdoor handling.
- May not be appropriate for test programs that require longer delay lengths than the box can accommodate or where connector configurations vary by crew/site, since inconsistent length/interface setups commonly reduce repeatability in acceptance measurements.
Application Details

- Designed for use with OTDR equipment for accurate optical fiber line measurement.
- Eliminates proximal and remote non-corrupt insertions.
- Reduces testing errors in various fiber optic network applications.
FAQ
Q1: What is the purpose of the HTO9O07 OTDR fiber launch cable box?
It is used to eliminate OTDR launch and receive dead zones. This allows accurate measurement of connector loss and reflectance at the beginning and end of fiber links.
Q2: What advantages does the round housing design offer?
The round design helps protect the internal fiber from bending stress and improves durability. It is suitable for repeated field use.
Q3: What fiber types are supported?
Single-mode fiber is standard, with multimode options available upon request. Connector types can be selected to match OTDR interfaces.
Q4: What launch cable lengths are available?
Common lengths include 500 m and 1 km, with other lengths customizable based on testing requirements.
Q5: Is this launch cable box suitable for field technicians?
Yes, the compact and robust design makes it easy to carry and use in field testing scenarios.
Q6: Typical applications?
Used in FTTH installation, telecom maintenance, data center fiber testing, and OTDR acceptance measurements.








