PROBLEM TO BE SOLVED: To provide a PON transmission system, which conducts PON transmission by mixing ATM signals transmitted in an asynchronous transfer mode and STM signals transmitted in a synchronous transfer mode with each other, in a subscriber's line section.;SOLUTION: In the subscriber's line section between optical network equipment 1 and an optical circuit terminating device 2, the PON transmission system makes the STM signals transmittable by inserting the signals into an ATM-PON transmission frame and the ATM signals transmittable, by inserting the signals into an STM-PON transmission frame. Since the ATM signals and STM signals are mixed together, an ATM network and an STM network in the subscriber's line section can be integrated.;COPYRIGHT: (C)2002,JPO
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