Skip to main content

Understanding MOFO™ Power

Understanding MOFO™ Power

TechLogix MOFO™ cables have become one of the most popular options for extending HDMI, DisplayPort and USB over extended distances. This article examines frequently asked questions around the MOFO™ power circuit and operation. 

Additional product line information can be found on the MOFO™ product page

 

Are MOFO™ cables active? 

Yes. TechLogix MOFO™ cables are active. They contain proprietary optical multiplexing technology to convert electrical HDMI, DisplayPort and/or USB signals to optical data. 

 

Do MOFO™ cables require external power supplies? 

No. Even though TechLogix MOFO™ cables are active, they do not require external power supplies. Power for the optical multiplexing processor is supplied through the HDMI, DisplayPort and/or USB connection to the source and destination device. 

 

What if my device doesn't output enough power on the video or USB port? 

The TechLogix MOFO™ optical processor is extremely efficient and operates within the standard 5V output of HDMI, DisplayPort and/or USB specifications. However, for applications where devices may not operate within  specifications and/or power integrity is required over distance (such as with non-powered USB devices), MOFO™ cables feature internal copper conductors for power sharing between the source and destination ends.  

 

 

Do MOFO™ cables work with passive (non-powered) wallplates, table inserts and couplers? 

It depends on the model. Traditional active optical cables, including TechLogix MOFO™ cables, do not support any inline couplers due to power loss and interference. Couplers, including passive wallplates and table inserts, reduce the voltage pass-through between the source and destination devices and the optical processors within the active optical cable. 

However, the TechLogix MOFO™ PT Series solves this problem through proprietary technology (patent No. 63/239,548) that allows inline coupling and extension cables to be used. MOFO™ PT Series products are designed to pass power through the coupled connection and from end-to-end through the cable. 

 

What if my USB device doesn't automatically recognize the MOFO™ cable when it powers on? 

In some applications, a computer with a connected MOFO™ USB cable is working properly; however, when the computer is rebooted the MOFO™ cable isn't identified and must be unplugged and replugged to operate properly again.

This scenario occurs because some computers automatically shut down USB ports until a physical connection is sensed and, because the MOFO™ cable requires power from the computer to properly operate, the connection cannot be made without unplugging and replugging the cable. 

This issue can be solved through three methods: 1) don't power cycle the computer; 2) adjust the computer settings to disable "USB sleep mode"; or 3) install a powered hub inline between the MOFO™ cable and the computer. 

The most sustainable and recommended method is typically option 2: adjusting the computer settings to disable "USB sleep mode". Below are example steps for making this adjustment, though actual steps may vary based on the computer and operating system. 

Continue reading

Mechanical Splicing vs. Fusion Splicing

Mechanical Splicing vs. Fusion Splicing

Pass-Through RJ45 Connectors Designed for 10G, PoE+ & Video

Pass-Through RJ45 Connectors Designed for 10G, PoE+ & Video

TechLogix Service Provider Solutions

TechLogix Service Provider Solutions

Comments

Be the first to comment.
All comments are moderated before being published.