hi , we have 2 security camera DVR . in 2 places , all of these locations are connected to local network connection using 3 NanoBeam AC 5ghz - 16 dbi - airmax AC CPE . all network infrastructure support 1gb speed , for connecting computers in the location to the main computer , the question is :  can i monitor the security systems in the remote locations direct to LCD in my office ? without internet  ! 
some people talking about chrome-cast ..  
  
is there any way to do this ?  
any help / advise is deeply appreciated nand sorry for my bad English