RL801GW WIFI GPON ONU device for FTTH





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What is ONU (Optical Network Unit)

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When it comes to ONU (Optical Network Unit) , we first introduce PON technology. PON technology has been developed since the 1990s. ITU (International Telecommunications Union) started from APON (155 M) and developed BPON (622 M). ), and to GPON (2.5 G); at the beginning of this century, due to the widespread use of Ethernet technology, IEEE has also developed EPON technology in Ethernet technology. Currently, PON technologies for broadband access mainly include EPON and GPON. The two standards are different. The EPON uplink and downlink bandwidth is 1.25 Gbit/s, the GPON downlink bandwidth is 2.5 Gbit/s, and the uplink bandwidth is 1.25 Gbit/s. The higher bandwidth in the future will be the 10 G EPON/10 G GPON developed on EPON/GPON technology. PON is a single-fiber bidirectional optical access network using a point-to-multipoint (P2MP) structure. The PON system is composed of an optical line terminal (OLT), an optical distribution network (ODN), and an optical network unit (ONU) on...
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Zigbee, NB-IOT, LoRa who will stand out

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Referring to the short-range wireless communication technology in the Internet of Things, many people may think of Bluetooth and WiFi in the first place. But in fact, other technologies, including Zigbee , are growing at a faster rate and quickly occupying the market. Since the beginning of the past few years, the domestic market has made a significant shift in the development attitude of Zigbee technology. More and more Chinese manufacturers have joined the Zigbee Alliance, including WULIAN, Huawei, and the United States, all of which have become members of the Zigbee Alliance. Zigbee technology development accelerates China's market attitude has changed significantly. The global Zigbee activation equipment market 2016-2020 report predicts that the global Zigbee activation equipment market will achieve a CAGR of 29.73% during 2016-2020. At the same time, more and more Chinese companies are joining the Zigbee Alliance. For the Zigbee Alliance, this is a big change, because in ...
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The difference between NB-IOT and Lora

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NB-IOT and Lora Introduction The wireless technologies of the  Internet of Things  are mainly divided into two categories: (1) One type is short-distance communication technology such as Zigbee, Wifi, Bluetooth, Z-wave; (2) The other type is LPWAN, which is a low-power wide-area network. LPWAN can be divided into two categories:  LoRa , SigFox, etc., which work on unlicensed spectrum, and 3GPP, which work in licensed spectrum. 2/3/4G cellular communication technologies such as EC-GSM, LTE Cat-m, NB-IoT, etc. The difference between NB-IoT and Lora 1. Frequency bands, quality of service and costs.  LoRa works in unlicensed frequency bands below 1Ghz, and does not require additional charges when applied. NB-IoT and cellular communication using licensed bands below 1 GHz are authorized and chargeable. 2. Battery life.  There are two important factors to consider regarding battery life, the current consumption of the node and the protocol content. LoRa is an a...
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