AC110/230 Power Input.
USB
To connect external USB devices like USB mouse or USB
storage device.
LAN Network Port.
HDMI HDMI Port. Connect to high-definition display device.
VGA VGA Port. Connect to monitor.
E-SATA External HDD for backup
VIDEO IN 16 CH Video Inputs.(support AHD/TVI/Analogue)
AUDIO OUT Audio output, connect to the sound box.
AUDIO IN 16 CH Audio Input.
RS485 Connect to keyboard or speed dome; A is TX +; B is TX-.
ALARM IN 16 channel alarm inputs
ALARM OUT 4 channel alarm output
MIC IN 2 Way Audio Micphone