請問有人有用過 Powerline電力上網 嗎?
 

它好像是一個，可以直接用家用電110V→轉成網路，
不需要牽長長網路線，來組成區域網路，如這樣唷：
家用電110V插座←轉接器→交換器→ADSL、PC1、PC2
家用電110V插座←轉接器→PC3
家用電110V插座←轉接器→PC4

目前我只知道他方便，缺點是他只有14Mbps。
看它的價錢還可以接受(起標價：US $35.00 立刻買：US $60.000 有5顆)

請問它還有何缺點呢?謝謝
---------------------------這邊是分隔線---------------------------
Powerline 電力上網


Imagine connecting your computers in different rooms without running any new cables. Now you can completely network your home by plugging into your existing electrical outlets. With NETGEAR's Powerline USB Adapter, a desktop or notebook PC can be networked with ease ­ all it takes is a spare USB port for all your computers to share files, printers, and even your Internet access. Designed to be seen, the good-looking case complements your living environment and sports NETGEAR's new, easy-to-read icons.

Seamless
Any existing 110V electrical outlets can now be used to supply a seamless network connection for all the notebook and desktop PCs that are located in different rooms throughout your home.

User-Friendly
Designed for a carefree lifestyle, the Powerline USB Adapter is simple to set up and use, and comes with a vertical stand plus wall mounts to give you options for saving valuable desk space. Just combine a Cable/DSL Router with a NETGEAR Powerline Ethernet Adapter (Model XE602) and ­ right away ­ all of your PCs can share not only printers, MP3 files, and digital photos, but, most importantly, your cable/DSL connection. Now the PCs in the kids’ bedrooms, family room, and kitchen can all benefit from high-speed Internet access.

Stylish
Powerline's new sleek and attractive case design can stand vertically, saving desk space.

Harmonious
Robust and rate-adaptive, NETGEAR's Powerline USB Adapter minimizes interference from other household appliances. Go ahead and use your hair dryer, vacuum cleaner or TV ­ your network will automatically find the best data rate so that you can continue surfing, gaming or telecommuting. It’s perfectly safe and reliable.

key features

Share Broadband Internet Connection from any room in the home
Simple USB connection, Simply Plug-n-Play
Ethernet-like Data rates up to 14 Mbps
Uses existing electrical wiring to network PCs
Works across circuit breakers and multiple phases
Works with standard 2 or 3 prong electrical outlets

Network Ports: One USB 1.1 port
One 14Mbps PowerLine port
Network Interface: Electrical Plug (Powerline HomePlug Technology)
PC Interface: USB 1.1 Compliant Port
Performance: 10 Mbps 10BASE-T
Standards: 14 Mbps HomePlug 1.0 Compatible
Power Line Networking Standards: HomePlug
Ethernet Standards Compliance: Compliant with HomePlug 1.0 standard
Modulation Schemes: OFDM Symbol Modulation
DQPSK, DBPSK, ROBO Carrier Modulation
CSMA/CA
Frequency Band: 4.3 MHz - 20.9 MHz
Additional Protocols: Forward Error Correction (FEC)
Automatic Channel Adaptation
Power Supply: 85 to 135v @ 60Hz, Internal
Dimensions: W 175 mm (6.9")
D 115 mm (4.53")
H 25 mm (1")
Weight: 0.4 kg (0.87 lb)
Environmental Specifications: Operating temperature:
Operating relative humidity:
0° C to 40° C (32 to 104° F)
10% to 90% noncondensing
Electromagnetic Emissions: FCC Part 15 Class B
Power and Safety Regulations: U/L Certified
Typical Coverage: Up to 5000 square foot home
Warranty: 3 years Manufacturer Warranty
Package Contents: XA601 Powerline USB Adapter
Driver and Documentation CD-ROM
5 ft. USB Cable
6 ft. power cord
Vertical Stand
Wall-mounting screws
XA601 Installation Guide
Warranty and registration card
Support information card

電力上網主要是利用現有電源線路，減少網路線，
但與其用這種小眾規格，直接無線上網還方便些。

這東西台灣就有賣了…最便宜約１ｘｘｘ…謝謝

無線在怎樣比也比不上有線, Wireless 和 Powerline 都有的人留..

友站Mobile01有相關的使用心得，可以去找找看
這種東西大該算一種調變解調技術吧，將乙太網路訊號轉成載波在電源線裡面跑
可以讓你省去網路佈線的痛苦，只要有插頭哪裡都可以。也不必擔心用無線 AP
怕樓層間穿透力不夠。不過這東西不是只買一顆就行囉!

ADSL--HUB--(Powerline)--插頭－－－插頭--(Powerline)--PC

就是說每一個連接插頭的地方都要用一顆，所以若要連接的電腦數量多的話建置
成本也是不低的。

記得以前上課的時候有做過這個東西的報告，不過致命傷還是在於速度。

wireless 11b ＣＣＫ 11M
wireless 11g OFDM 54M
HomePlug OFDM 14M

短距離or 同樓層 11g勝, 18M~24Mbps, 11b 4~5Mbps, HomePlug 4~5Mbps
跨樓層 or > 15m以外, 都差不多 4~5Mbps, HomePlug稍微穩一點

這些以前都玩過,後來還是乖乖拉線, 同間房跑Gigabit, 跨樓層跑100M, notebook用WLAN

上面最後一段字是重點! 尤其是開 BT 等東西, 我家現在是同房間用 Gigabit 級網路
, NB 也準備買 Gigabit 級網卡, 房間到客廳的 ADSL 用 Homeplug, 分享給 100 米
遠的朋友用三年前買的 AVAYA Wireless 802.11b, 不過 Wireless 可能是功率降低
常會收不到, 現換上買一陣子的 3Com Router, 最近又剛訂兩部支援 WDS 的 3Com
Router, 結論是在家能拉線就拉線, 逼不得已才用無線, 別和別人趕流行用 Wireless..

偶有用
因為偶家有三層樓
穩定性上是沒啥問題,
雖然有一天時莫名奇妙的不通
可是過一天又好了..
一般上網也沒問題
不過區網速度很慢
開個網芳傳檔,保證會讓你抓狂
不過有多層樓又同屬一電表的
還是用hOMEPLUG比較穩

產品研發初期速度總是較慢，但配合使用者增加及持續研發，速度自然提升，
不論有線、無線都一樣，但這個產品好像沒什麼進展就是了，大概卡在使用者。