nomidics

Sorry to revive an old thread. I have two networks that I want to keep separate. One, a mixture of cabled and WIFI is in my office (router, PCs, network printer, IP camera, and a NAS device), and other separate (wired) network links my cash registers and a PC in my office. I want to add a wireless access point, that connects to my office router, in a room where one of the cash registers is. Rather than running another cable can I use these economisers to utilise one the existing cables of the cash register network that already runs to exactly where I would have to run a second cable? Basically I plan to have my router plugged into one port of the economiser, and the existing patch cable (that is part of the cash register network) into the other. At the other end of the cable run, a wireless access point, and the existing patch cable that plugs into one of my cash registers. I then plan to install an ip camera, into the room with the cash register, that connects to the access point and ultimately my router in the office, so that I can view the camera online and record it via the NAS devise. I was also hoping that the access point could be used for WIFI Does this sound valid? Cheers! Can they be used in this way??