... distance for -LR, -SR, -LX4, -ER modules is 2m, according to the IEEE 802.3ae standard, and ... minimum cabling distance for -LRM modules is 0.5m, according to IEEE 802.3aq standard ... attenuator for < 20 km. Attenuator is available as a spare. The part number is WS-X6K-5DB-ATT=.*** Links ... to 15651260 to 1565***** Transmitter and receiver power is in average, unless specified.** The launch power ...