40-Channel DWDM Mux/Demux Module – APX-DWDM-40CH
Product Overview
The APX-DWDM-40CH and APX-DWDM-80CH combine and separate dense wavelength channels on 100GHz and 50GHz grids, while the APX-CWDM-18CH supports 18 coarse channels across 1270–1610nm on dual fiber. The APX-OADM-4 adds and drops wavelengths in line using TFF4 filters with wavelength-level protection.
Key Features
- 40-channel DWDM mux-demux on a 100GHz channel grid
- 80-channel high-density DWDM mux-demux on a 50GHz grid
- Passive shelf construction for low-maintenance, powered-free operation
Technical Specifications
| Specification | Detail |
|---|
| Part Number | APX-DWDM-40CH |
| Brand | Apex |
| DWDM Channels | 40 channels (100GHz spacing); 80 channels (50GHz spacing) |
| CWDM Channels | 18 channels, dual fiber, 1270–1610nm |
| OADM Function | Add-drop multiplexing with TFF4 wavelength-level protection |
| OLP Configuration | 1+1 optical line protection |
| OLP Modes | Manual / automatic / forced; no-light lock on power failure; front-panel key switchover |
| Optical Switch Configuration | 1×64, with 1×32 and 1×16 options |
| Optical Switch Wavelength | 1260–1650nm |
| Insertion Loss | ≤2.0dB (1×64) |
| Return Loss | ≥50dB |
| Switching Time | ≤25ms |
| Switch Life | ≥10^9 operations |
| Maximum Optical Power | ≤500mW |
| Configuration Interface | Digital channel display; serial local sensitivity setup; NMS remote configuration |
Available Configurations
APX-DWDM-40CH
A 40-channel DWDM mux/demux in a 19-inch 1U passive shelf. It puts 40 ITU-T DWDM channels plus an upgrade port on one fiber pair, so metro and long-haul links gain capacity without new cable. LC/PC ports, no power and no cooling required.
- 40 DWDM channels + upgrade port
- ITU-T 100GHz spacing, C-band
- Low insertion loss, high return loss
- 19-inch 1U rack or shelf mounting
- Passive, no power required
Applications
🌐 Metro and Long-Haul DWDM Capacity
Builds dense wavelength layers on existing fiber using 40- and 80-channel multiplexing and adds mid-span add-drop for ring traffic.
🏢 CWDM Access and Enterprise Links
Provides 18 coarse channels over short and medium spans for access, campus and enterprise networks that value simple, passive optics.
🛡️ Optical Line Protection and Switching
Combines 1+1 line protection with high-count optical switching to guard working paths and to route light in test, monitoring and redundancy setups.
Compatibility
Interoperable with major optical transport and networking platforms. Standard channel grids, connectors and passive interfaces let these modules drop into existing DWDM, CWDM and OTN line systems.
Frequently Asked Questions
What is the difference between the DWDM and CWDM modules?
DWDM modules pack 40 or 80 dense channels on a 100GHz or 50GHz grid for high-capacity routes, while CWDM offers 18 coarse channels over 1270–1610nm for simpler, lower-cost links.
Why Choose Apex
- A single portfolio covers DWDM, CWDM, OADM, line protection and optical switching
- Passive shelves lower power use and maintenance at remote sites
- High-count optical switching with fast switchover and long service life
- Engineering support for channel planning and line protection design
