Product details

The PL7635 WDM module is a passive optical diplexer for Sat-Light Platinum Series RF over Fiber systems, designed to structure optical signal routing within single-fiber architectures. It supports integration in high-density rack environments where controlled optical separation and efficient fiber utilization are required. The module operates without electrical power and functions as a fixed optical infrastructure component. In large-scale RF over Fiber deployments, the challenge is rarely signal transmission itself but the complexity of managing fiber infrastructure as systems scale across multiple racks and sites. The PL7635 addresses this at the architectural level by reducing fiber dependency between chassis, enabling operators to consolidate optical routing without redesigning existing RF transport layers. For system integrators, the primary value lies in network simplification and deployment scalability. The device is easy to install due to the reduced number of physical fiber runs required between modules and racks. This improves maintainability, and reduces failure points associated with connector-heavy architectures. The PL7635 is suitable for long-term deployments where operational continuity, fiber efficiency, and system expansion flexibility are primary procurement drivers.

Key features

1310 nm / 1550 nm optical channel separation
Insertion loss ≤ 0.8 dB per channel
Optical isolation ≥ 17 dB between ports
Optical return loss ≥ 55 dB performance level
Wave dependent loss ≤ 0.15 dB stability
Temperature dependent loss ≤ 0.15 dB variation
Polarization dependent loss ≤ 0.1 dB control
Maximum optical power handling 500 mW
Passive operation with zero power requirement
Single-fiber bidirectional signal capability

Specifications

Part number	PL7635
Series	Foxcom PL7635
Model	PL7635
Type	Fiber Optic Component
Frequency Range	nm
Insertion Loss	dB
1550 nm	max. 0.8
1310 nm	max. 0.8
Isolation between 1310 to	min. 17 dB
Optical return loss	max. -55 dB
Wave dependent loss	max. 0.15 dB
Temperature dependent	max. 0.15 dB
Polarization dependent loss	max. 0.1 dB
Maximum power handling	max. 500 mW
Connector	FC/APC, SC/APC [E2000 option] Type
Operating Temperature	°C / -10 / +55
Storage Temperature	°C / -45 / +85
Relative Humidity	95% non-condensing
Altitude	ft / Km / 10,000 [3.08 ] operating
Dimensions [D×W×H]	ins/cm / 12×0.8×4 / 30.5×2×10.2
Weight	lbs./Kg / 0.5 / 0.23
Shock & Vibration	Designed for normal transportation environment per section 514.4
Order codes	PL7635

Frequently asked questions

What is the PL7635 WDM module used for in RF over Fiber systems?

It is used to optimize optical infrastructure by enabling multiple optical channels to share a single fiber, reducing the need for additional fiber routing in RF over Fiber deployments.

Does the PL7635 require external power or configuration?

No. The module is fully passive and operates without electrical power or software configuration, making it suitable for fixed optical infrastructure deployments.

How does the module impact fiber infrastructure design?

It reduces the number of physical fiber runs required between system components, simplifying rack-to-rack and site-to-site optical connectivity planning.

Is product suitable for bidirectional optical transmission?

Yes. It supports bidirectional operation by enabling structured wavelength separation over a single fiber path for upstream and downstream signal routing.

Does Digisat supply and support Foxcom equipment?

Yes. Digisat supplies Foxcom (Global Foxcom) RF-over-fiber links, chassis, repeaters and fiber components with quote-based pricing for teleports, broadcasters, government and defense buyers, and our engineers can help design the fiber IFL, size the optical budget and integrate it with your antennas, LNBs, BUCs and modems.

Need it installed, aligned or supported?

Digisat engineers install, commission and maintain satellite ground systems for government agencies, teleports and broadcasters worldwide. Request installation or engineering support.