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Data requirement is tremendous increase in year 2016 to year 2020, thus a high transmission media is required, Active Optical Cables (AOCs) could achieve high data transmission over distances, The AOC with electrical inputs as a traditional copper cable, and use optical fiber as transmission media, it is an ideal to streamlined installation for high-performance computing and storage applications with sacrificing compatibility of the existing standard electrical interfaces.
The AOC Cable generally composed as follow:
The Active connectors are QSFP+, complied with SFF-8436 standard, could be hot-swappable in switch, router, etc.
The system with 4Tx and 4 Rx channels, could transmit data in parallel to reach duplex data transmission.
The AOC with O-E (Optical-Electronic) and E-O (Electronic – Optical) conversion module.
The ribbon optical fiber cable (generally yellow cable for SM (single mode) Cable, and Orange or Aqua for Multimode Cable).
Why Use Active Optical Cable (AOC)?
1. Compared to Copper Cables
Longer reach, using single mode fiber, could transmit over kilo meters
Lower weight and tighter bend radius, compared with traditional bulky cooper cable, the cable is light weight and with small bending radius, easy for installation, as well as enable simpler cable management
Thinner cables, It allows better airflow for cooling
Lower power consumption
No need for power-hungry conditioning ICs on the host board
2. Compared to Optical Transceivers
Cost effective: Compatible with existing cooper interface, no need new investment
Data center/Consumer friendly: No need to worry about contamination on fiber connector
Disadvantage: Have to use extra cabinets for wiring, not able to use fiber optic patch panel
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