Final Report 7.1.6 Chapter 7 Outline of Scope of Works Installation of transmission equipment for the Yangon-Thanlyin circuit (International Satellite Earth Station) (1) Current Situation An international satellite communications earth station (Ku-band) is located in Thanlyin near Yangon and is connected to the international gateway exchange (ITMC) in Yangon by 12-core fiber optic cable. On the other hand, an international satellite earth station (Ku-band) and domestic satellite earth station (C-band) are located in Toe Kyaung Galay, and like the Thanlyin and Yangon international gateway exchange, are connected by 12-core fiber optic cable, and Thanlyin and Toe Kyaung Galay have a mutual backup function for international satellite communications and have a diversity configuration. The configuration is shown in Figure 7.1-14. (2) Necessity (Relevance) More lines will be provided between the Yangon international gateway exchange and the satellite earth station with the aim of maintaining and improving the level of service against increased nationwide phone and internet traffic engaging in international communications. (3) Scope of upgrade As shown in Figure 7.1-14, more lines are planned by installing DWDM transmission equipment on 2 cores of the existing 12-core fiber optic cable laid between Yangon (ITMC), Thanlyin and Toe Kyaung Galay. (4) Equipment to be introduced The equipment to be introduced is as shown below. (a) Yangon - Thanlyin:DWDM (10Gbps x 4 wavelengths) (b) Thanlyin - Toe Kyaung Galay:DWDM (10Gbps x 4 wavelengths) (c) Toe Kyaung Galay - Yangon:DWDM (10Gbps x 8 wavelengths) 12core 2core(10Gbps x 4λ) Thanlin Yangon 10core(used) (ITMC) Int’l Earth Stn. 12core 12core 10core(used) 10core(used) 用) 2core10Gbps x 8λ) 2core (10Gbps x 4λ) Toe Kyaung Galay. Int’l/Domestic Earth Stn. 地球局 Figure 7.1-14 Circuit Configuration for Yangon-Thanlin Link 7-26

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