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1km OTDR Launch Cable Box (Single Mode, SC/UPC to SC/APC, 1310/1550nm)
An OTDR cannot measure the first stretch of fiber after its own port, which is why the near-end connector and the start of the link disappear into the dead zone. This launch box puts 1000 meters of single mode 9/125 fiber between the OTDR and the link under test, pushing the launch event clear of that blind spot so the first connector, the first splice, and the true end-to-end loss all show up on the trace. The same box can be used at the far end as a receive cable to capture the last connector.
The spool sits inside a sealed non-metallic case that will not dent, corrode, or conduct electricity, with a compound latch that seals positively and locks for transport, and an auto purge valve that equalizes internal pressure as altitude and temperature change. That makes it practical to carry between sites rather than keeping it on a bench. SC/UPC and SC/APC bulkheads are fitted for the two most common single mode interfaces, and the case has room for up to 1000 meters of fiber.
Typical uses are pulse suppression on OTDR traces, delay line work, installation and acceptance testing, technician training, and equipment calibration.
Specifications
| Product Type | OTDR launch cable box (dead zone eliminator) | Manufacturer Part# | FOD-OLB-1000-SCUSCA |
| Fiber Type | Single mode 9/125 | Fiber Length | 1000 m (1 km) |
| Wavelengths | 1310 nm, 1550 nm | Connector Type | SC/UPC to SC/APC |
| Connector Gender | Female to female | Case Capacity | Up to 1000 m of fiber |
| Enclosure Material | Non-metallic plastic | Case Features | Compound latch with lock, auto purge valve |
| Item Shape | Round | Usage | Indoor and outdoor |
| Compatible Devices | OTDR test equipment | Application | OTDR testing, pulse suppression, delay line, installation and acceptance testing, training, calibration |
| Unit Count | 1 | ||