sales@foscoconnect.com
(510) 319-9878
Silicon Valley, CA, USA
Overview
The EXFO SPSB-B-500-88-101 is a portable, single-mode soft pulse suppressor bag designed for critical fiber optic testing applications. It serves as a launch test cable, enabling accurate link characterization and loss measurement when used in conjunction with an Optical Time-Domain Reflectometer (OTDR). By providing a lead-in fiber, it allows the OTDR to resolve the near-end connector, effectively overcoming the instrument's dead zone.
Housed in a durable, portable soft pouch, this unit is ideal for installation and troubleshooting environments. The 500-meter length ensures sufficient fiber for comprehensive testing of both the first and last connectors in a fiber link, ensuring high-quality maintenance and certification of optical networks.
Key Features
-
Dead Zone Mitigation
Covers the OTDR dead zone to ensure accurate measurement of the first and last connectors in a fiber link. -
Single-Mode Operation
Optimized for single-mode fiber systems, ensuring compatibility with standard long-haul and metro network infrastructure. -
SC/APC to LC/UPC Connectors
Features industry-standard connector types for seamless integration with diverse test equipment and network hardware. -
500m Fiber Length
Provides an optimal 500-meter length, sufficient for verifying most short-to-medium distance network links. -
Portable Soft Pouch
Includes a convenient, rugged soft bag for easy transport and protection in the field. -
Low Attenuation
Delivers consistent optical performance with low signal loss (0.37 dB/km at 1310 nm and 0.25 dB/km at 1550 nm).
Applications
- Fiber optic installation verification
- Network troubleshooting and fault location
- OTDR link characterization
- Loss measurement of first and last connectors
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | EXFO |
| Model | SPSB-B-500-88101 |
| Fiber Type | Single-mode |
| Length | 500 meters |
| Connector A | SC/APC |
| Connector B | LC/UPC |
| Attenuation @ 1310 nm | 0.37 dB/km |
| Attenuation @ 1550 nm | 0.25 dB/km |
Frequently Asked Questions
What is the purpose of a pulse suppressor?
A pulse suppressor allows the OTDR launch pulse to stabilize before reaching the first connector of the link, allowing the OTDR to accurately measure the insertion loss of that connection.
Can this be used for multimode fiber?
No, this unit is designed for single-mode fiber applications.
Is the soft bag water-resistant?
The soft pouch provides protection for the enclosed fiber, though it is intended for standard field environments.
What does the connector designation mean?
It features an SC/APC (angled physical contact) connector for low back-reflection and an LC/UPC (ultra physical contact) connector for high-performance signal transmission.
Is this unit TAA compliant?
No, this specific model is non-TAA compliant.

