© Copyright Qvis® All documentation rights reserved. 195Please refer to the following sheet for detailed information:Parameter FunctionChannel Select speed dome connected channel.Protocol Select the corresponding dome protocol such as PELCOD..Address Set corresponding dome address. Default value is 1. Please noteyour setup here shall comply with your dome address; otherwiseyou can not control the speed dome.BaudRateSelect the dome baud rate. Default setup is 9600.Data Bit Default setup is 8. Please set according to the speed dome dial switchsetup.Stop bit Default setup is 1. Please set according to the speed dome dial switchsetup.Parity Default setup is none. Please set according to the speed dome dialswitch setup.7.8.6 AdvancedText OverlayThe card overlay function is for financial areas. It includes Sniffer, information analysis and titleoverlay function. The Sniffer mode includes COM and network.I. COM TypeThe COM interface is shown as below. See Figure 7-83. Protocol: Please select from the dropdown list. Setting: Click COM setting button, the interface is shown as in RS232 interface. Pleaserefer to Chapter 0.0.0 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 thecard number in the local monitor video. Encode means overlay the card number in therecord file. Overlay Position: Here you can select the proper overlay position from the dropdown list.