8-Channel DWDM MUX DEMUX ABS Box Minimizing Loss and Maximizing Isolation for Optimal Performance 8-Channel DWDM MUX/DEMUX ABS Box – Engineered for high-density wavelength division multiplexing applications, this rugged ABS enclosure delivers ultra-low insertion loss (40dB) to maximize optical signal integrity. Featuring industry-standard 100GHz/200GHz ITU-T grid spacing, it seamlessly integrates with C-band/L-band DWDM systems for telecom, data center, and FTTx networks.