TAILIEUCHUNG - Optical Networks: A Practical Perspective - Part 44

Optical Networks: A Practical Perspective - Part 44. This book describes a revolution within a revolution, the opening up of the capacity of the now-familiar optical fiber to carry more messages, handle a wider variety of transmission types, and provide improved reliabilities and ease of use. In many places where fiber has been installed simply as a better form of copper, even the gigabit capacities that result have not proved adequate to keep up with the demand. The inborn human voracity for more and more bandwidth, plus the growing realization that there are other flexibilities to be had by imaginative use of the fiber, have led people. | 400 Client Layers of the Optical Layer Table Specifications for STM-16 intraoffice and short-haul interfaces from ITU . Parameter 1-16 Transmitter MLM SLM Wavelength range firn fim Transmit power max 3 dBm 0 dBm Transmit power min 10 dBm 5 dBm Receive sensitivity min 18 dBm 27 dBm Receive overload min -18 dBm 27 dBm b Many SONET streams are to be multiplexed onto a higher-speed stream and transmitted over a SONET link. c A fiber fails and SONET line terminals at the end of the link reroute all the traffic on the failed fiber onto another fiber. d The error rate on a SONET link between regenerators is to be monitored. e The connectivity of an STS-1 stream through a network needs to be verified. In Table calculate the equivalent distance limitations of the different types of SONET systems. Assume a loss of dB km at 1550 nm and dB km at 1310 nm. You have to connect two SDH boxes operating at STM-16 line rate over a link that can have a loss of anywhere from 0 to 7 dB. Unfortunately they do not support the same interfaces. One of them supports an 1-16 interface and the other has an interface. The detailed specifications for these interfaces extracted from ITU Recommendation are given in Table . Can you find a way to interconnect these boxes and make the link budget work You are allowed to use variable optical attenuators in the link. Consider an ESCON link operating at a data rate of 17 MBytes s. The sender transmits a block of data and waits for an acknowledgment before sending the next block of data. Compute the throughput on the link for the following sets of parameters a Block size of 1 KByte link length of 1 km b Block size of 1 KByte link length of 10 km c Block size of 1 KByte link length of 100 km d Block size of 4 KBytes link length of 10 km e Block size of 4 KBytes link length of 100 km Assume that the speed of light in fiber is 2 x 105 km s. References 401 _ References Ame97 American National

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.