Ubiquiti CWDM Mux Demux 4
The Ubiquiti CWDM Mux Demux 4 is a professional-grade, rack-mountable device that can expand the capacity of existing fibre infrastructure by supporting a wide range of wavelengths from 1270 to 1330 nm. With four dedicated channel ports and a duplex LC UPC communication port, this multiplexer/demultiplexer allows for efficient data transmission and easy linking to another CWDM Mux Demux 4 using a pair of single-mode fibre cables.
Additionally, a duplex LC UPC monitor port enables real-time monitoring with a power meter or optical spectrum analyser, ensuring optimal performance and simplified maintenance.
Tech Specs
| Device Specifications — Overview | |
|---|---|
| Dimensions | 442 x 120 x 43.7 mm (17.4 x 4.7 x 1.7") |
| Enclosure Material | SGCC steel |
| Weight | 1.4 kg (3.2 lb) |
| Pigtail and Connector Type | 0.9 mm white LC/UPC |
| Connector | (1) COM (LC/UPC) (1) MON (LC/UPC) (1) 1270 to 1330 nm (LC/UPC) |
| Fiber | |
| Type | SMF-28e |
| Length | ≥0.5 to 1 m |
| Isolation | Adjacent Channel: Max. 30 dB Non-Adjacent Channel: Min. 40 dB |
| Channel Count | 4 CH Mux/Demux |
| Channel Center Wavelength | 1270/1290/1310/1330 nm |
| Min. Channel Passband | ±6.5 nm |
| Insertion Loss | <1.5 dB (Max.) |
| Return Loss | 50 dB (Min.) |
| Max. Power Handling | 500 mW |
| Max. Passband Ripple | 0.3 dB |
| Max. Polarization Dependent Loss | 0.1 dB |
| Max. Polarization Mode Dispersion | 0.1 ps |
| Min. Directivity | 55 dB |
| Ambient Storage Temperature | -40 to 90° C (-40 to 194° F) |
| Ambient Operating Temperature | -30 to 75° C (-22 to 167° F) |
| NDAA Compliant | ✓ |
FAQs
Q1: What is the UACC‑CWDM‑4 used for?
A: It is a 4‑channel CWDM multiplexer/demultiplexer designed to combine (or split) up to four separate wavelengths over a single-mode fibre — increasing fibre capacity without laying new cables.
Q2: What optical ports and wavelengths does the UACC‑CWDM‑4 support?
A: It provides four channel ports covering wavelengths 1270 nm, 1290 nm, 1310 nm, and 1330 nm. It also includes a duplex LC/UPC communication port and a duplex LC/UPC monitor port.
Q3: What fibre type and connector standard does it require?
A: The device is designed for standard single‑mode fibre (SMF‑28e) and uses LC/UPC duplex connectors with 0.9 mm pigtails.
Q4: What are the performance specifications — insertion loss, isolation, and power handling?
A: Maximum insertion loss is under 1.5 dB. Isolation between non‑adjacent channels is at least 40 dB, and adjacent-channel isolation is up to 30 dB. It supports maximum optical power handling of 500 mW.
Q5: What are the physical dimensions, mounting form factor, and operating conditions?
A: The unit is rack‑mountable: 442 × 120 × 43.7 mm, weight approximately 1.4 kg, in a metal housing. Operating temperature range is –30 °C to +75 °C, with storage down to –40 °C.