Fiber Optic Telephone Adapter

• Extends the range of telephone transmission up to 50 km (31 miles)
• Supports direct subscriber or PBX connections
• Supports both DTMF and pulse dialing
• Optional rechargeable nickel cadmium backup battery for up to three hours of operation
• Lightning protection for use in rural environments

• Provides secure connection of voice communications over fiber optic links
• Operates over all types of fiber optic cables

Telephone to PBX connection over fiber

The F-TEL fiber optic telephone adapter enables telephone connection to a central office PBX over a fiber optic link. The fiber optic link secures voice communications and blocks tapping. Two models are available:

F-TEL/CO for direct connection to a central office PBX.

F-TEL/SUB for direct connection to a subscriber telephone set. The product supports both DTMF and pulse dialing.

The F-TEL fiber optic telephone adapter can operate over the common types of fiber optic cables. The adapter supports 850 nm, 1310 nm and 1550 nm optical interfaces. The laser options are used to extend the range up to 50 km (31 miles).

As a backup to the AC power supply, the F-TEL fiber optic telephone adapter can be powered by an optional NiCad rechargeable battery. Using the backup battery, the product provides better immunity against wiretapping.

The F-TEL fiber optic telephone adapter is available as a standalone unit. A special mechanical adapter can be used for mounting one unit or two units side-by-side in a 19" rack.