The LiteLink®TLPX/TLLX-2001 system consists of the
TLPX-2001 transmitter and TLLX-2001 receiver. Both units provide a fiber
optic interface between a standard tone-type telephone and the standard US
telephone line (POTS*). All functions including full duplex audio, dial
tone, ringing and connect/disconnect are supported.
Both multimode and single-mode fiber versions are available and connections to and
from the telephone and telephone line are by means of standard modular
plugs. In addition, integral LEDs are provided on both units to continuously
indicate the presence of the off-hook condition as well as the presence of
operating power making system troubleshooting simple.
Fiber Optic Communications Systems 
