# Passive CWDM MUX DEMUX Device

CWDM technology  uses  ITU standard  20nm spacing  between the wavelengths, from  1270nm to 1610nm . Our  CWDM  module  has  2 to  18  channels. The  central wavelength of each  channel  is specified to one of the ITU\-T grid wavelengths. The CWDM module features wide channel bandwidth (13nm).  Its  isolation  is  greater  than  30dB  for  adjacent  channels,and  greater  than  40dB  for non\-adjacent channels.

The module also has high thermal stability to ensure reliable performance under different environment.

**Product** **specification**

**C****h****annels**

**2**

**4**

**8**

**16**

**18**

**Insertion** **Loss**

<1.2dB

<1.5dB

<2.4dB

<4.8dB/

<3.0dB/

<2.0dB

<5.4dB/

<3.5dB/

<2.5dB/

**Wavelength** **Range**

1270- 1610nm

**Te****chnology**

TFF (Thin Film Filter)

**Channel** **Spacing**

20nm

**Passband** **Ripple**

≤ 0.5dB

**Channel** **Passband**

ITU±6.5nm

**Channel** **Isolation**

Adjacent ≥30dB

Non-adjacent ≥ 45dB

**Polarizatio****n**

**Dependent** **Loss**

≤ 0.2dB

**Polarizatio****n**

**Dispersio****n**

**Mode**

≤ 0.1ps

**D****irectivity**

≥ 50dB

**Return** **Loss**

≥ 45dB

**Optical** **Power**

**Ha****ndling**

≤ 500mW

**Temperatur****e**

Operating -40 to 85°C

Storage    -40 to 85°C

**1****U** **Rack** **Type**

![](https://cdn.shopify.com/s/files/1/0758/0362/3703/files/2025092103.png?v=1758436626)

**CWDM** **MUX** **DEMUX** **8****CH** **Dual** **Fiber** **LC****/****UPC** **1****U** **Rack**

![](https://cdn.shopify.com/s/files/1/0758/0362/3703/files/2025092104.png?v=1758436792)

**CWDM** **MUX** **DEMUX** **18****CH** **Dual** **Fiber** **LC****/****UPC** **1****U** **Rack**

![](https://cdn.shopify.com/s/files/1/0758/0362/3703/files/2025092105.png?v=1758436921)

**CWDM** **MUX** **DEMUX** **8****CH** **Single** **Fiber** **LC****/****UPC** **1****U** **Rack** **Side** **A**

![](https://cdn.shopify.com/s/files/1/0758/0362/3703/files/2025092106.png?v=1758437107)**CWDM** **MUX** **DEMUX** **8****CH** **Single** **Fiber** **LC****/****UPC** **1****U** **Rack** **Side** **B**

## Details

- **Price:** 0.0 USD
- **Vendor:** DFT TELECOM
- **Type:** 电脑网络
- **Tags:** 5G, Datacenter, dfttelecom, fiberoptic cable, fiberoptic Solutions, ftth, ROUTER, switch

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- Passive CWDM MUX DEMUX Device

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> Source: [DFT TELECOM ](https://dfttelecom.com/products/passive-cwdm-mux-demux-device)
> Updated: 2026-08-28