On July 19, 2026, the U. Federal Communications Commission (FCC) released an updated authorization guideline for sub-terahertz radio equipment, with mandatory application starting on August 1, 2026. An optical module is a typically hot-pluggable optical transceiver used in high-bandwidth data communications applications. Optical modules typically have an electrical interface on the side that connects to the inside of the system and an optical interface on the side that connects to the outside. FCC Tightens Sub-terahertz Module Approval Rules: learn how new FCC requirements for Sub-terahertz Optical Modules impact certification, compliance planning, and North America shipments. If a module is identified as non-Cisco original, the switch may shut down the port, trigger an alarm, or display a warning message. Cisco also provides hidden commands to allow the use of third-party optical. CE marking for fibre optic products, declaration of conformity for optical fibre, and product certification are mandatory for all fibre optic components distributed in the EU, provided they fall under one of the applicable EU directives — particularly the Low Voltage Directive 2014/35/EU for active. We recommend that customers purchase optical devices that have been authorized and qualified by Extreme Networks, as described on Extreme Networks ' then-current price lists. 5 release created a new requirement for customers to purchase a feature license pack named 3rd Party. Chinese optical-module makers have responded to a report that the US Federal Communications Commission is drafting restrictions on imports of new Chinese data-center components, including optical transceivers. Zhongji Innolight said no relevant FCC document had been issued, while Eoptolink said it.
