High-Capacity C-Band Fiber Multiplexing

The Evertz 7705DWDM Series Dense Wave Division Multiplexing Modules deliver ultra-high-density optical transport over single-mode fiber infrastructure. Operating within the ITU-T G.694.1 C-Band spectrum (100GHz / 0.8nm grid), these 8-channel cascadeable modules enable broadcast operators and telecommunication providers to combine up to 16 tight-spaced optical channels onto a single fiber pair. This precise channel density makes the 7705DWDM series an exceptional tool for maximizing capacity over long-haul links, avoiding expensive dark fiber leases, and scaling inter-facility transport.

CWDM Overlay Capability and Passive Reliability

A key operational advantage of the 7705DWDM series is its ability to integrate directly into existing 1550nm CWDM system channels. By multiplexing 8 or 16 DWDM wavelengths inside a single 1550nm CWDM window, facilities can massively expand existing fiber capacity without replacing legacy CWDM hardware. Built as a purely passive system, the module requires no power, adding zero latency, noise, or jitter. It transparently transports uncompressed 3G/HD/SD-SDI video, L-Band/IF satellite links, MADI audio, and Ethernet data simultaneously.

Operational Uptime and Frame Versatility

Designed for mission-critical broadcast environments, the 7705DWDM features a front-of-frame hot-swappable architecture that allows engineers to swap modules without interrupting active rear fiber connections. Occupying two slots in standard Evertz 7700 and 7800 series enclosures, it integrates effortlessly into studio frames, portable 350FR chassis, and headend racks. The 7705DWDM series is the ideal choice for high-density Studio-to-Transmitter Links (STL), satellite ground station links, and large-scale venue signal aggregation.