The SPECTRALinx brings a state-of-the-art modular approach to the demanding Teleport environment. Spanning the entire L-Band frequency range (950-2150 MHz), the link employs a number of feature rich components to create a highly reliable system. The 3RU rack-mount modules may be specified for conventional 1310 nm or 1550 nm operation, CWDM operation or DWDM operation. CWDM or DWDM optics greatly expand the potential capacity of installed optical fibers by allowing up to 16 separate transmitters to be accommodated on one single-mode fiber. Both the transmitter and the receiver may be specified for 75 Ohm or 50 Ohm inputs. The transmitter also provides +18 Volts DC for LNB power. The 3RU rack chassis configuration offers increased system reliability via dual, redundant power supplies and hot-swappable modules. The system provides a -20 dB RF test point and other test points to determine laser current draw, laser cooler current draw, receiver photo current, receiver AGC detect (RF) level, and ground, further ensuring proper Teleport system operations.