4XEM IPCAMW45 - Manual (Page 13)

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The UDP protocol allows for more real-time audio and video streams. However, some packets
may be lost due to network burst traffic and images may be obscured. The TCP protocol allows
for less packet loss and produces a more accurate video display. The downside with this
protocol is that the real-time effect is worse than that with the UDP protocol. If no special
need is required, UDP protocol is recommended. Generally speaking, the client’s choice will be
in the order of UDP – TCP.
After the Network Camera is connected successfully, Protocol Option will indicate the selected
protocol. The selected protocol will be recorded in the user's PC and will be used for the next
connection. If the network environment is changed, or the user wants to let the web browser
detect again, manually select the UDP protocol, save, and return HOME to re-connect.
Digital Output
Click on ON, the digital output of the Network Camera will be triggered. Or, clicking on OFF can
let the digital output turn into normal state.