Can the wire and cable be laid in the same trunking?
A few hundred dollars to buy a full set of radio frequency monitoring head, with a receiver, indoor tartaropsm distance no problem. Buy a special hard disk recorders, four or five hundred dollars.
Seems to have not seen, to find the extension line you might as well add the data line it, then another IDE interface just fine, CD-ROM and hard drive connected with a data line affect the I / O speed ~
