The FWL family of optical voice transmission systems uses an advanced digital communication technique for voice communication through a single fiber. It can be configured for singlemode or multimode fiber operation, in any of the 1550nm, 1310nm or 850nm windows, with high performance LASER's or LED's. Standard singlemode fiber and 1550nm operation yields long distance reach, typically up to 200 km.

Applications include: private telephony, service channel, communication between field technicians during maintenance of telecom networks etc. It is also recommended for applications in hazardous environment (explosion risk, high electromagnetic field interference etc).

The FWL family can fast return your investment, reduce operational costs with telecom services etc. It is divided in three product lines, serving different applications and market needs:

FWL211 Digital Optical Talk System

Application: Voice communication between field technicians

The "FWL211 Digital Optical Telephony System" is designed for high quality voice communication over optical fibers. It is a compact and portable equipment with interface to PBX and Public Switched Telephone Networks (PSTN). The FWL211 uses advanced digital communication techniques for voice communication through a single fiber over short and long distance reach, typically up to 200 km.

It finds several applications and differentials, such as:

• Communication between field technicians during installation, testing and maintenance of fiber networks
• Communication between field sites and company offices
• Communication in electrical power transmission lines and other utility companies whose right-of-way are equipped with fiber cables (OPGW cables etc.)
• Communications in hazardous environments (explosion risk classified areas, high electromagnetic field interference environments etc)
• Remote connection to PBX and PSTN
• Dial-up telephone extension
• Private telephony
• Fiber identifier
• Fiber continuity tester
• 2KHz tone transmission and detection
• Head-set as well as hand-se operation.

Additional useful FWL 211 functionalities include:

• Computer data communication
• Remote instruments access and control via RS interface

The FWL211 can also be used to replace radio communication, walkie-talkies, mobile and satellite telephony which are affected by RF interference and low QoS. It fast returns its investment, through greatly reducing operational costs.

The option of local and remote connection to PBX and Public Switched Telephone Networks brings advantages as:

• Conference calls between field operators and company offices
• External remote calls
• Mobile and satellite phone bill savings
• Service quality improvement

Its high sensitivity allows clip-on communication without cutting the fiber.

Click here to see the FWL211 technical specifications.

The FWL211 is a unique instrument. However, for the specific application of voice communication between field technicians during installation, testing and maintenance of fiber networks, it does have some competitors.

Contact FiberWork for additional information.