LC - Duplex-Modul for MediorNet, CWDM wavelength 1271nm, 4.25GBit/s, opt. Budget max. 18dB (P-out= 0 to 4 dBm, P-in = -18 to -3 dBm); Distance to cover depending on attenuation of fiber used: 9/125µm Singlemode-Fiber up to: 40.000m (25mi). CAUTION: A minimum line- attenuation of 7dB is required to prevent the receiver from overdrive.