Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Do I have to connect the  TP-Link TL-WA5210 G  to my wireless router via a cable? If so is it a regluar RJ45 cable and does the unit need ac pow
Document: This a great product i use to use a wrt54g v2 with ddwrt with my grid atenna to pick up signal mile with poor connect evennow i have upgraded to this TP-Link TL-WA5210G High Power Cpe am picking up signal 1 miles a away with 70% signal quality and with the Grid i get 2 1/2 miles Max and i live in jamaica so there alot of trees so it really is a good product
Too slow even for YouTube videos.We tried swapping out both units for other ones from TP-link. Same issue. The problem is just bad engineering. So these will work great if you just need to connect your house to an outbuilding 200 feet away. But they will do nothing even CLOSE to what they claim, which is to make a 9 mile wi-fi link!
I did find the TP Link easy to set up as an access point and my Nexus was able to connect and access the internet easily. All in all I have to say the advertising for this unit is misleading. If you read the fine print, you will see that the power is rated as ERP using a 12 dBi antenna. This means that the actual output is only +15 dBm. I have a co worker who has internet but no wifi.
I have read various reviews claiming issues with the quick setup, and adding security was the solution for me.I changed locations and moved it upstairs away from my router and actually used aNetgear 85Mbps Powerline Network Adapter Kit - XETB1001to connect it to the internet. I was worried about the power injector because I have 2 powerline systems running in the house but I saw no interference with or from either system. I positioned the TP-Link directly towards the building through a couple of branch-less trees but otherwise unobstructed view.
I want to use the TL-WA5210G to connect my router to any other router while traveling in my rv, how can I do that?
Then to just test it I went further away to around 1200 feet and the signal went down to about 60% strength.When I tried to access to the network however, both iPhone and laptop could see the network yet unable to connect to it. I went back to the TP Link settings page(via Chrome browser 192.168.1.254) and downloaded the most recent firmware update. That also did not fix the issue.
It is a great product that saved me alot of trouble running cable to where I needed internet. It does a great job and is secure. I would recomend this product for wireless service to where you need it.
Took me more time unpacking this thing than running the setup. This AP -in ap-router mode- now is irradiating at full 54mps (works on "g") a woody property 320ft x 150ft, and on a PVC pole of only 9ft. using the build-in internal antennae.New TP-Link NT TL-WA5210G Outdoor Access Point 54Mbps 2.4ghz 802.11g/B Antenna Retail I'm more than pleased, happy with this TP-Link little wonder.
This unit has both a quick setup and the more advanced setup configurations available. Both work well, as I used the quick setup to test my setup then went into the advanced config to add wireless security and AP isolation. The TP-Link is mounted to a metal pole 12 feet high and the signal rocks some 2500 feet away over fairly level ground (high desert).
I purchased this to give wireless coverage outside on the patio. I am using it as an AP, and not for the router function. So a pretty basic installation. But what I found is that after about a day any device (iPad, iphone, Laptop) will try to connect and then disconnect.
Answer: You'll need to connect the TP-Link to your wireless router via a standard RJ45 ethernet cable - actually you'll need two.  One (included) is generally used to connect your router to the included power inserter.   The second (not included) runs from the power inserter to the TP-Link.  If you're going to mount the TP-Link outside with very exposed cable run, then you might want to consider a direct burial grade ethernet cable.  For a short and somewhat protected run I don't think you'd have a problem using a standard cable, YMMV.