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When viewing multiple cameras, the 4.6× zoom feature is not available, however the 10× digital zoom is available. Note however that as the magnification increases, image quality decreases.
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When viewing images on the multi camera page, the maximum image resolution available is 320 × 240.
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When [16 Screens] is selected as the number of cameras displayed, all images are displayed in 192 × 144 pixel resolution, images are displayed as still images, and the audio controls are not displayed.
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MPEG-4 images displayed on the multi camera page are streamed using the HTTP protocol.
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When the camera is configured to display MPEG-4 images on the multi camera page (see
7.1 Changing Image Display Settings), images from other cameras may be displayed in MJPEG format when accessing the camera using HTTPS. Click your web browser’s refresh button to display MPEG-4 images.
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If a camera configured for the multi camera page is configured to not allow access from guest users, an authentication dialog will be displayed for that camera. You will need to enter a valid user name and password in order to view images from that camera.
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If a camera displayed on the multi camera page is configured to not allow general users or guest users to access certain features (presets, pan/tilt, etc.), those features are not available and their corresponding buttons or controls will not be displayed.
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The image refresh rate may vary depending on network conditions, PC performance, the number of people accessing the cameras, and the type of objects being viewed.
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The image refresh rate may decrease when buffering images to an SD memory card.
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When viewing video images, we recommend connecting the cameras using an Ethernet switching hub instead of a repeater hub to improve image refresh rate.
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As a general guideline, about 3 to 4 Mbps of bandwidth are required to display 4 camera images. If you do not have enough bandwidth, the refresh rate may decrease.
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When viewing MJPEG/JPEG images on the multi camera page, the talk button is displayed in gray for cameras that do not support speakers.
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When viewing MPEG-4 images on the multi camera page, the talk off button (

) is displayed for cameras that do not support speakers.