IC Realtime Flex Series: 32-CH High Performance H.264E 2U DVR - Manual (Page 152)

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Figure 7-60
7.5.4 Additional Function
7.5.4.1 Preferred DNS
Here you can set server or local operator DNS address. See Figure 7-61.
Figure 7-61
7.5.4.2 Card Overlay
Tit is the same with the card overlay function (chapter 5.5.9). It is mainly for financial areas to
Sniffer, information parse and character overlay. The ATM/POS interface is shown as in Figure
7-62.
Source IP refers to host IP address that sends out information (usually it is the device host
connected to the DVR.)