Lorex By FLIR Security System w/ cameras & monitor

Lorex By FLIR Security System With Wired Cameras & Monitor. Lorex by FLIR 8 channel MPX DVR 1080p/15 1 HD Model # DV708-DFS 3 & (6) 1080p MPX IR bullet cameras Model #s: LBV2531S-C and LBV2711-C & Acer LCD monitor Model# V196HQL Info about system here: https://www.lorextechnology.com/security-dvr-and-surveillance-dvr/8-channel-hd-digital-video-recorder/DV7082W-1-p 4 functional cameras (1 is brand new and never installed) 2 cameras which may be able to work, but connections are broke.