Road vehicles - interchange of digital information on electrical connections between towing and towed vehicles - part 1 : physical layer and data - link layer 道路車輛.牽引和被牽引車輛之間電氣連接的數(shù)字信息的交換.第1部分:物理層和數(shù)據(jù)鏈接層
Information processing systems - data communication . high - level data link control balanced classes of procedures . data - link layer address resolution negotiation in switched environments 信息處理系統(tǒng)數(shù)據(jù)通信高級數(shù)據(jù)鏈路控制平衡類規(guī)程交換環(huán)境中數(shù)據(jù)鏈路層地址的決定協(xié)商
The six layers are : wireless physical layer , wireless data - link layer , network layer , transport layer , mobile computing application supporting environment , and application layer 六個層次是:無線物理層、無線數(shù)據(jù)鏈路層、無線網(wǎng)絡(luò)層、無線傳輸層、移動計算應(yīng)用支撐環(huán)境和移動應(yīng)用層。
Despite the large numbers of protocols in tcp / ip , just the several necessary protocols are designed and mentioned in this project . however , the protocols cover the data - link layer , the network layer and the transfer layer , and provide the just functions of the three layers 對于龐大的tcp ip協(xié)議族,本文只設(shè)計并實現(xiàn)了必不可少的幾個協(xié)議,然而,這些協(xié)議卻覆蓋了數(shù)據(jù)鏈路層,網(wǎng)絡(luò)層,傳輸層。
Hart protocol is an important reasoning of hart telecommunication realized by temperature transmitter . at first , the thesis gave a comprehensive analysis of hart protocol standard , and introduced each request of the data - link layer , application layer and physics layer Hart協(xié)議作為溫度變送器實現(xiàn)hart通信的重要依據(jù),論文首先對hart協(xié)議規(guī)范作了全面的分析,介紹了hart數(shù)據(jù)鏈路層、應(yīng)用層和物理層具體要求。