DVR systems DVR31xxH Series - Manual (Page 71)

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Figure 5-31
5.5.8 Card Overlay
The card overlay function is for financial areas. It includes Sniffer, information analysis and title
overlay function. The Sniffer mode includes COM and network.
5.5.8.1 COM Type
The COM interface is shown as below. See Figure 5-32.
 Protocol: Please select from the dropdown list.
 Setting: Click COM setting button, the interface is shown as in RS232 interface. Please refer
to Chapter 5.3.4 RS232.
 Overlay channel: Please select the channel you want to overlay the card number.
 Overlay mode: There are two options: preview and encode. Preview means overlay the card
number in the local monitor video. Encode means overlay the card number in the record file.
 Overlay Position: Here you can select the proper overlay position from the dropdown list.
Figure 5-32
5.5.8.2 Network Type
The network type interface is shown as below. See Figure 5-33.
Here we take the ATM/POS protocol to continue.
There are two types: with or without the protocol according to client ’s requirements.
With the protocol
For ATM/POS with the protocol, you just need to set the source IP, destination IP (sometimes
you need to input corresponding port number).