STN6200-OA1: EDFA Card for STN6200 Platform The STN6200-OA1 is a series of DWDM C-Band Amplification Card based on Erbium Doped Fiber Amplifier (EDFA) including Booster Amplifiers (BA), Line Amplifiers (LA), and Pre-Amplifiers (PA). It typically operates in the C-band range (1529~1561nm) and can discuss specific working wavelength ranges with Sino-Telecom. The amplification card can be operated under constant gain (Automatic Gain Control, AGC) or constant output power (Automatic Power Control, APC).  

STN6200-RA: Raman Amplifier Card for STN6200 Platform The STN6200-RA is a backward transmission signal amplifier by using Raman effects. This product can be widely used in SDH, DWDM and long-distance transmission scenario. It can both amplify optical signals, and improve the OSNR (Optical Signal-to-Noise Ratio) of the system and greatly extend the transmission distance.