🌐🔗⚡️

#SDH #SONET #telecom #network #fiber optic #data transmission #synchronous digital hierarchy

💡➡️⏱️

#SDH #synchronous digital hierarchy #fiber optic #telecom #network #data transmission #synchronous

🦠🔄⚡️

#SDH #succinate dehydrogenase #cellular respiration #metabolism #enzyme #mitochondria #biochemistry

📺🆓

#closed captions #cc #video accessibility #SDH #hearing impaired text #subtitle track

🧠🩸🤕

#SDH #subdural hematoma #brain bleed #head injury #neurology #medicine