25 September 2001 Plastic optical fiber serial communications link for distributed control system
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Proceedings Volume 4417, Photonics 2000: International Conference on Fiber Optics and Photonics; (2001) https://doi.org/10.1117/12.441299
Event: Photonics 2000: International Conference on Fiber Optics and Photonics, 2001, Calcutta, India
Abstract
One of the most common interface for communications specified is RS 232C standard. Though widely accepted, RS232 has limited transmission speed, range and networking capabilities. RS 422 standard overcomes limitations by using differential signal lines. In automation of the operation of gas discharge lasers, multiple processors are used for control of lasers, cooling system, vacuum system etc. High EMI generated by lasers interfere through galvanic transmission or by radiation over the length of cables, and hang up operation of processors or control PC. A serial communications link was designed eliminating copper transmission media, using plastic optical fiber cables and components, to connect local controllers with the master PC working on RS232 protocols. The paper discusses the design and implementation of a high ly reliable EMI harden serial communications link.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Piyush Saxena, K. K. Sharangpani, H. S. Vora, S. V. Nakhe, R. Jain, N. M. Shenoy, R. Bhatnagar, N. D. Shirke, "Plastic optical fiber serial communications link for distributed control system", Proc. SPIE 4417, Photonics 2000: International Conference on Fiber Optics and Photonics, (25 September 2001); doi: 10.1117/12.441299; https://doi.org/10.1117/12.441299
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