4+2 Channel CWDM MUX/DEMUX with O-Band & DWDM Ports, Dual Fiber, LGX Module
The GLOBALfiber G-CMUX-06-4761-LU is a fully passive dual-fiber CWDM MUX/DEMUX that combines 4 CWDM channels with two wideband service ports (1310 nm O-Band and 1550 nm DWDM/C-Band).
This flexible design enables the coexistence of CWDM traffic with O-Band services and C-Band DWDM on the same platform, maximizing fiber utilization in point-topoint links.
The module is optimized for environments with limited fiber availability and is widely used in telecom, data centers, broadcast & TV, cloud infrastructure, finance, andgovernment networks.
Key Features
• Dual-fiber CWDM MUX/DEMUX
• 4 CWDM channels plus 1310 nm O-Band and 1550 nm DWDM wideband ports
• Fully passive design – no power required
• Supports mixed services: CWDM, O-Band, and C-Band DWDM
• Compact LGX plug-in module, compatible with 1U racks
• Low insertion loss and high channel isolation
• LC connectors
CWDM & Service Wavelengths
CWDM Channels
• 1470 nm
• 1490 nm
• 1590 nm
• 1610 nm
• Channel spacing: 20 nm
• Channel passband: ±6.5 nm
Service Ports
• O-Band: 1260–1360 nm
• DWDM (C-Band): 1527.31–1565.59 nm
Supported Applications & Transceivers
• O-Band port supports: 1G LX/SX, 10G LR, 40G ER4/LR4, 100G LR/ER4/LR4/ZR4, O-Band DWDM
• DWDM port supports: GE / 10G / 100G / 400G C-Band DWDM
• Suitable for 1G/10G/100G Ethernet, SDH/SONET, and 8G/4G/2G/1G Fibre Channel
Optical Technology
• Filter technology: TFF (Thin Film Filter)
Technical Specifications
• Insertion loss (CWDM): = 2.0 dB
• Link loss: = 3.0 dB
• Return loss: = 45 dB
• Directivity: = 45 dB
• Polarization mode dispersion (PMD): = 0.1 ps
• Polarization dependent loss (PDL): = 0.3 dB
Channel Isolation
• Adjacent channels: = 30 dB
• Non-adjacent channels: = 45 dB
Environmental & Mechanical Specifications
• Operating temperature: –40 °C to +85 °C
• Storage temperature: –40 °C to +85 °C
• Module format: LGX
• LGX dimensions (H × W × D): 190 × 150 × 20 mm
• Net weight (LGX): 0.5 kg
• Rack options:
o 4-slot 1U rack: 1.5 kg
o 2-slot 1U rack: 44 × 440 × 160 mm
Typical Applications
• CWDM aggregation with service overlays
• Fiber-scarce metro and access networks
• Mixed CWDM/DWDM deployments
• Data center and edge connectivity
• Broadcast, cloud, finance, and public infrastructure