Dual GPON/XGS-PON/NG-PON2/CATV/OTDR Coexistence Wavelength Division Multiplexer


2x GPON/XGS-PON/NG-PON2/CATV/OTDR Coexistence Wavelength Division Multiplexer  in One LGX Box, SC/APC connectors

The GPON is an intermediate device for PON evolution. Our CEx WDM modules adopts TFF technology and can coexist GPON, XG(S)-PON, NG-PON2 and OTDR, CATV signals in the same network environment. GPON and XG(S)-PON allow GPON and XG(S)-PON to coexist in the existing network without affecting existing services, and realize smooth evolution from GPON to XG(S)-PON, which is stable, reliable and convenient to manage , to meet the service rate upgrade requirements. At the same time, the broadband working range of 1260-1660nm provides support conditions for the evolution of PON.

LightOptics’s LGX CEx WDM modules are tested to IEC 61300-2-1, -9, -21, -22, -26 and GR-1209 requirements. And our CEx WDM products are tested to GR-63 requirements.

Wavelength of the Coexistence Elemet (CEx) Multiplexer

Networks/Services Wavelengths (nm)
GPON/25G 1290 – 1500nm
XGS-PON 1260 - 1280nm & 1575 – 1581nm
NG-PON2 1524-1544nm & 1596-1603nm
CATV/RF Video Band 1550 - 1560nm
OTDR Monitor Band 1625-1675nm



Operating Wavelength 1260~1660nm Vendor Name LightOptics
Insertion Loss GPON ≤0.8dB
XG(S)-PON ≤1.1dB
NG-PON2 ≤1.4dB
CATV ≤1.7dB
OTDR ≤2.0dB
Isolation GPON ≥30dB
XG(S)-PON ≥30dB
NG-PON2 ≥30dB
CATV ≥30dB
OTDR ≥15dB
Passband Ripple ≤ 0.3dB Polarization Dependent Loss ≤ 0.2dB
Return Loss ≥ 45dB Directivity ≥ 50dB
Power Handling ≤ 500mW Polarization Mode Dispersion ≤ 0.2ps
Connectors SC/APC
Temperature Range  -10 to 70°C (14 to 158°F)


 Dimensions (Standard 118 footprint LGX Box)

Worldwide FREE Shipping on orders over US$179

We offer FREE shipping on orders over US$179 WORLDWIDE by FedEx, DHL or UPS! We ship orders Monday through Friday from our warehouses. Most of the orders will be processed and shipped within 1~2 business days, excluding some custom items. The specific shipping time varies on the destination, shipping service you choose, and customs clearance. If you have a strict delivery time requirement, you may contact the sales representative before your purchase, and we will recommend you an appropriate shipping method. According to shipping methods, delivery time around the world is estimated as follows:

  • FedEx Estimated 3-6 business days
  • DHL Estimated 3-6 business days
  • UPS Estimated 3-6 business days

Extended 30-day, no-questions-asked Return Policy

We have a 30-day, no-questions-asked return policy for all of our products. If you aren’t satisfied, please contact our team within 30 days of receipt for a refund or replacement. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original and unopened packaging. To initiate a return please contact our customer success team who will issue an RMA number and provide return shipping instructions.

How to Track your orders

Once your package leaves our warehouse, we'll send you a shipment notification email. This email includes the carrier name, tracking number, shipping date and items' details. You can click the tracking number to track your package on the carrier's website, like DHL, FedEx or UPS.

The cookie settings on this website are set to 'allow all cookies' to give you the very best experience. Please click Accept Cookies to continue to use the site.
Dual GPON/XGS-PON/NG-PON2/CATV/OTDR Coexistence Wavelength Division Multiplexer
You have successfully subscribed!
This email has been registered