IL<3.5dB , 100GHZ DWDM MUX DEMUX Monitor Port for Troubleshooting, 1310nm Port for Legacy Traffic Multiplexing of 16 Channels over a Dark Fiber Network Fully Compatible with All ITU-T 1G/10G/25G/40G/100G DWDM Optics Passive devices, No Power No Cooling Required Support Metro, Regional and Long Haul DWDM Networks