Panasonic WJ-ND400K Operating Instructions - Page 165
About the [Measurement] button, About SD memory recording, Recording rate setting
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Emergency recording About the [Measurement] button By clicking the [Measurement] button, you can check that the specified rates provide proper operation on the network. A red rate setting value indicates that live images or recording of the image may not be possible at the specified rate. Measurement takes about 90 seconds. • When measurement results (total of all camera maximum speeds) are greater than the recorder network speed, heavy network traffic may cause dropping of recorded images, live images, alarms, and other data, degraded operational response, restarts, and other problems. (Guideline network speed: 128 Mbps) • Even when measurement results do not exceed the above guideline network speed, the number of connected cameras and PCs can cause some of the phenomena described above. Important: • Network traffic volume fluctuates depending on the network environment. Set a rate based on measurement results to ensure enough margin for maximum network speed. • Recording, playback, live video, a copying are all disabled while measurement is in progress. Note: • Other users connected to the recorder are logged out automatically during measurement. They are logged back in after measurement is complete. • Measurement results are for reference only. They are subject to change in accordance with the network environment. • The target for measurement is the value after clicking [Set]. • Since the recorder uses a network, network traffic and other factors can make it impossible to obtain live video and recorded images as expected from the setup, slow browser response, or disconnection. Also, recording may not be possible when the recorder is in use or malfunctioning. We are not liable for lost content. About SD memory recording SD memory recording is a camera function that saves images to the camera's internal SD memory when communication with the camera is not possible within the programmed recording time set on the recorder. Recording rate setting SD memory recording can only be set if the camera supports SD memory recording and the compression format is set to [M-JPEG]. The recording rate can be set for each camera channel. (page 42) The start time of SD memory recording depends on the recording rate setting. Set the SD memory recording rate to a smaller setting than the emergency recording rate. Note: • When the recording rate for SD memory recording is set, be sure to set to use recording to the SD memory card in the camera. When the camera is set to not use SD memory cards, or when an SD memory card is not inserted in the camera (or inserted incorrectly), an error message appears several times a day and recording is not done. Acquiring images saved on the SD memory card The images are acquired from the SD memory card and recorded on the HDD. You can confirm when data is being acquired from the SD memory in the "Status display area". SD memory acquisition is described below. • 15 minutes past each hour (0:15, 1:15, ...23:15) Important: • When communication with the camera is discontinued during emergency recording, the recording rate set for SD memory recording is used. • SD memory recording cannot be done when the network communication between the camera and the recorder is disconnected, and the alarm is entered to the recorder or it reached start time of the scheduled recording time starts. • Do not set SD memory recording rates on multiple network disk recorders for the same camera. • The time recorded on the acquired SD memory data is the time set on the camera. The NTP function can be used to synchronize the time on the camera and the recorder. You may not be able to back up SD memory if the time is not synchronized. • If the recording conditions for multiple cameras are changed and emergency recording is done, recording may be delayed for up to six seconds when 64 cameras are recording at the same time. Note: • Depending on the schedule's time table and the amount of images, it may not be possible to acquire them all automatically at one time. The images that cannot be acquired may be acquired at the next acquisition. • Image acquisition is not done in the following situations. During playback, HTTP download, emergency recording, and external recording • SD memory data acquisition is interrupted if the following operations occur. ⋅ Login ⋅ Emergency recording ⋅ External recording ⋅ Shifting to/from summertime (daylight savings) 36