EXFO FTB-LTC-B-1000-XX-YY Launch Test Cable
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EXFO FTB-LTC-B-1000-XX-YY launch test cable with 1000 m singlemode fiber covers OTDR dead zone for accurate loss measurement of first and last fiber connections.
Product details
| Model | FTB-LTC-B-1000-XX-YY |
| Manufacturer | EXFO |
| Category | Network & Fiber Optic Test |
| Availability | Made to order |
Description
Overview
The EXFO FTB-LTC-B-1000-XX-YY is a 1000 meter launch test cable designed to work in conjunction with an OTDR. It covers the OTDR's dead zone, enabling accurate loss measurements on the first and last connections of a fiber link under test. This singlemode model with 9/125 µm fiber is essential for comprehensive fiber commissioning and troubleshooting.
Key Features
- 1000 m length singlemode fiber (9/125 µm, G.652D)
- Connector insertion loss less than 0.5 dB
- Reflectance: UPC less than –50 dB, APC less than –60 dB
- Typical attenuation: 0.37 dB/km at 1310 nm, 0.25 dB/km at 1550 nm
- Available with multiple connector types: FC/APC, SC/APC, FC/UPC, ST/UPC, SC/UPC, E2000/UPC, E2000/APC, LC/UPC, LC/APC
- External patchcord: 2 × 1.5 m
Applications
- OTDR installation and troubleshooting of fiber access networks
- Loss measurement of first and last connector events in fiber links
- Commissioning of new fiber infrastructure
- Network maintenance and performance verification
Specifications
| Choice of Configurations | Typically, the length of an OTDR’s dead zone is equivalent to that of the optical pulse plus a few meters. The chosen launch test cable should therefore be longer than the pulse dead zone used for the tests. For instance, a 1 µs pulse is approximately 100 m long; selecting a 150 m SPSB or a 300 m LTC/PSB would therefore be appropriate. EXFO offers three types of launch cables: ▪ The FTB-LTC module combines with an FTB-7000 series OTDR module in the FTB-500 or FTB-200 platform ▪ The stand-alone PSB comes in a rugged, compact carrying case ▪ The portable SPSB comes in a soft, easy-to-carry-everywhere pouch |
| How it Works | Link characterization is often performed using an OTDR. But even though an OTDR has the shortest dead zones, because of the way loss is measured in a link, it does not allow the characterization of the first and last connectors without using a launch test cable, also called a pulse suppressor box. The loss value associated with an event is the difference between the backscattering levels measured before and after the event. To account for the OTDR’s dead zone, obtaining a backscattering level before the first connector requires inserting a certain length of fiber between the OTDR port and the first connector of the fiber under test. At the other end of the link, the same length of fiber is added after the last connector of the “receive” cable. In order to obtain an accurate, complete picture of the system’s loss—which is a critical aspect of fiber commissioning—a launch test cable should always be used at both ends of the fiber link. |
| Feature | Parameter |
| Weight | 325 g 0.72 lb 2.72 kg 6 lb 1.36 kg 3 lb |
| External Patchcord Length | 2 x 1.5 m 2 x 5 ft 2 x 2 m 2 x 6.6 ft 2 x 2 m 2 x 6.6 ft |
| FTB-LTC-B-1000 | Launch test cable, single module for FTB platform, singlemode fiber 9/125, 1000 m |
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EXFO FTB-LTC-B-1000-XX-YY Launch Test Cable
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