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時至今日，以太網(wǎng)供電 (PoE) 技術(shù)仍在當今的網(wǎng)絡(luò)世界中不斷地普及。由供電設(shè)備 (pse) 提供並傳輸至受電設(shè)備 (PD) 輸入端的 12.95W 功率是一種通用電源
上傳時間： 2013-11-06
上傳用戶：xmsmh
Power over Ethernet (PoE) is a new development thatallows for the delivery of power to Ethernet-based devicesvia standard Ethernet CAT5 cable, precluding the need forwall adapters or other external power sources. The PoEspecification defines a hardware detection protocol wherePower Sourcing Equipment (pse) is able to identify PoEPowered Devices (PDs), thus allowing full backwardscompatibility with non-PoE-aware (legacy) Ethernetdevices.
標簽： PoE 電池電路 擴展 以太網(wǎng)供電
上傳時間： 2013-11-11
上傳用戶：daoyue
To this day, Power over Ethernet (PoE) continues to gainpopularity in today’s networking world. The 12.95Wdelivered to the Powered Device (PD) input supplied bythe Power Sourcing Equipment (pse) is a universal supply.Each PD provides its own DC/DC conversion from anominal 48V supply, thus eliminating the need for a correctvoltage wall adapter. However, higher power devicescan not take advantage of standard PoE because of itspower limitations, and must rely on a large wall adapteras their primary supply. The new LTC4268-1 breaks thispower barrier by allowing for power of up to 35W for suchpower-hungry 2-pair PoE applications. The LTC4268-1provides a complete solution by integrating a high powerPD interface control with an isolated fl yback controller.
上傳時間： 2014-12-24
上傳用戶：jasson5678
Some thesis studies about wireless sensor network algorithms. Algorithms are considered and some pseudo codes are shown.
標簽： Algorithms algorithms considered wireless
上傳時間： 2013-11-27
上傳用戶：luopoguixiong
產(chǎn)品做相關(guān)認證時，需要有對應(yīng)的符號。如UL,pse,KC,CE等
上傳時間： 2016-07-14
上傳用戶：xylsup
無線電CW通聯(lián) 基本Q短語，通聯(lián)實例 A: CQCQCQ DE BA4ALC/5 BA4ALC/5 BA4ALC/5 pse K B:BA4ALC/5 DE BD4IZL BD4IZL K A:BD4IZL DE BA4ALC/5 GM TNX FER CALL DR OM UR RST 559 55N K B:RR BA4ALC/5 DE BD4IZL GM DR OM TNX 55N RPRT UR 599 5NN FB MY NAME IS YU YU QTH JINAN JINAN BA4ALC/5 DE BD4IZL K A: DR YU OM TNX FB RPRT OP JACK JACK QTH NINGBO NINGBO WX HR IS FINE ES WARM TEMP 20C 20C HW? DE BA4ALC/5 K B:R DR JACK OM WX CLOUDY CLOUDY ES TEMP 15C 15C BT RIG FT80C FT80C ANT DIPOLE DP PWR 100WATTS 1TTW BA4ALC/5 DE BD4IZL K A: BD4IZL DE BA4ALC/5 MY RIG IS IC746PRO IC746PRO ES PWR 100W 1OOW BT ANT 2 ELE YAGI 2ELE YAGI 12MH TNX FER NICE QSO QSL VIA BURO HPE CUAGN BD4IZL DE BA4ALC/5 73 73 GL ES GB TU TU SK.. B:TNX FB CW QSO QSL QRZ.COM CUAGN BA4ALC/5 DE BD4IZL 73 DR JACK TU SK.. A:. B:.
上傳時間： 2019-03-05
上傳用戶：shuyinglee
POE的系統(tǒng)構(gòu)成及供電特性參數(shù)一個完整的POE系統(tǒng)包括供電端設(shè)備（pse，Power Sourcing Equipment）和受電端設(shè)備（PD，Power Device）兩部分。pse設(shè)備是為以太網(wǎng)客戶端設(shè)備供電的設(shè)備，同時也是整個POE以太網(wǎng)供電過程的管理者。而PD設(shè)備是接受供電的pse負載，即POE系統(tǒng)的客戶端設(shè)備，如IP電話、網(wǎng)絡(luò)安全攝像機、AP及掌上電腦（PDA）或移動電話充電器等許多其他以太網(wǎng)設(shè)備（實際上，任何功率不超過13W的設(shè)備都可以從RJ45插座獲取相應(yīng)的電力）。兩者基于IEEE 802.3af標準建立有關(guān)受電端設(shè)備PD的連接情況、設(shè)備類型、功耗級別等方面的信息聯(lián)系，并以此為根據(jù)pse通過以太網(wǎng)向PD供電。POE標準供電系統(tǒng)的主要供電特性參數(shù)為：1，電壓在44~57V之間，典型值為48V.2.允許最大電流為550mA，最大啟動電流為500mA3，典型工作電流為10-350mA，超載檢測電流為350~500mA.4，在空載條件下，最大需要電流為5mA5，為PD設(shè)備提供3.84~12.95W五個等級的電功率請求，最大不超過13w.
標簽： poe
上傳時間： 2022-06-27
上傳用戶：
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