2。2,縮略語(yǔ).AC,Access、Control.List 訪問(wèn)控制列表。BHCA.Busy.Hour、Call、Attempts 忙時(shí)呼叫嘗試次數(shù) ID,Identification.身份證明,IP、Internet、Protocol?;ヂ?lián)網(wǎng)協(xié)議.LPZ.Lightning.Protection.Zone,雷電防護(hù)區(qū) MAC,Media。Access Control,媒體控制訪問(wèn),MPLS。Multi Protocol、Label Switching。多協(xié)議標(biāo)簽交換、MSTP、Multi Service。Transmission,Platform、多業(yè)務(wù)傳送平臺(tái),NAT.Network Address,Translation 網(wǎng)絡(luò)地址轉(zhuǎn)化 NTP Network,Time。Protocol。網(wǎng)絡(luò)時(shí)間協(xié)議、OTDR.Optical.Time、Domain Reflector,光時(shí)域反射儀、PDH Plesiochronous。Digital.Hierarchy,準(zhǔn)同步數(shù)字系列.PTZ.Pan,Tilt、and,Zoom control、云臺(tái)操控 PRBS,Pseudo、Random.Binary、Sequence、偽隨機(jī)二進(jìn)制序列.QoS Quality.of。Service 系統(tǒng)服務(wù)質(zhì)量,SDH,Synchronous,Digital、Hierarchy 同步數(shù)字系列.STM。N。Synchronous。Transport,Module、level,n 同步傳輸模塊n級(jí) UPS Uninterruptible,Power,Supply,不間斷電源.VLAN,Virtual、Local Area,Network,虛擬局域網(wǎng) VPN,Virtual。Private、Network 虛擬專用網(wǎng)