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¿µ¹®Ç¥Áظí Gigabit-capable Passive Optical Networks (GPON):General characteristics
Çѱ۳»¿ë¿ä¾à º» Ç¥ÁØÀº GPON ½Ã½ºÅÛÀÇ ÀϹÝÀûÀΠƯ¼ºÀÎ ¼­ºñ½ºÀÇ ¿¹, »ç¿ëÀÚ¸Á Á¢¼ÓºÎ(UNI), ¸Á »ç¾÷ÀÚÀÇ ¼­ºñ½º ³ëµå Á¢¼ÓºÎ(SNI)¸¦ ¼³¸íÇÑ´Ù. ÀϹÝÀûÀ¸·Î GPON ½Ã½ºÅÛÀº OLT ½Ã½ºÅÛ°ú ONU ¶Ç´Â ONT ±×¸®°í À̸¦ ¿¬°áÇÏ´Â ODNÀ¸·Î ±¸¼º µÇ¸ç, OLT¿Í ONU/ONT´Â Á¡´ë´ÙÁßÁ¡ ¿¬°á °ü°è¸¦ °®´Â´Ù. ¿î¿ëÀÚ ¼­ºñ½º ¿ä±¸»çÇ× Áß½ÉÀ¸·Î GPONÀÇ ÀϹÝÀûÀΠƯ¼ºÀ» ¼³¸íÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à This Recommendation addresses the general characteristics of gigabit-capable passive optical network (GPON) systems in order to guide and motivate the physical layer and the transmission convergence layer specifications. The general characteristics include examples of services, userinterfaces (UNIs) and service node interfaces (SNIs) thatare requested by network operators. Also, this Recommendation shows the principle deployment configuration. GPON systems are characterized, in general, by an optical line termination (OLT) system and an optical network unit (ONU) or optical network termination (ONT) with a passive optical distribution network (ODN) interconnecting them. There is, in general, a one-to-many relationship between the OLT and the ONU/ONTs, respectively.
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