CWDM Mux/Demux — 1U Rack Chassis

The CWDM grid gives eighteen 20 nm-spaced channels from 1271 to 1611 nm. In practice the six 1351–1451 nm channels sit in or near the water peak, so on older non-zero-water-peak fiber (G.652.B) many operators use only the eight 1471–1611 nm channels. On modern G.652.D fiber all eighteen are usable.

Yes — a mux at one end and a demux at the other, or more commonly an identical mux/demux unit at both ends so the link works in either direction. Order in pairs unless you are extending an existing site.

It taps 1% or 2% of the aggregate line signal so you can measure total launch power with a meter without breaking traffic. Very useful for commissioning and for proving a fault is outside your equipment.

Yes — that is most of what we ship. Send the wavelength or ITU channel list, the port count, the package and the connector type on your RFQ and we build to it. Custom plans add only a few days to lead time.

Take the insertion loss shown for your channel count and double it, because you need a unit at each end of the link. Then add roughly 0.3 dB per mated connector pair and 0.1 dB per splice, and keep 3 dB of margin for ageing and future repairs before you compare against the transceiver's link budget.

Yes. Every unit is swept channel by channel and the measured insertion loss, isolation and return loss are supplied with the shipment. Sample reports can be provided in advance for tender documentation.