Panasonic WJ-NV300 Operating Instructions - Page 187

Port number A sub address set below the IP address to connect multiple parties simultaneously for communication (TCP, UDP, etc.) on the Internet. Primary (DNS) server DNS servers usually have more than 2 systems and the primary server is the main system. Private (IP) address IP address assigned when connecting primarily to LAN. Private IP addresses can be assigned freely on a network and do not require a formal application. However, because private IP addresses cannot be used to access the Internet, a router or other device it is necessary to assign a global IP address. Protocol A set of rules that allows the exchange of data amongst different types PCs with information. The Internet uses the TCP/IP protocol as its base and information is transferred following http and ftp protocols depending on the application. QVGA Resolution with 320 x 240 (320 x 180) pixels. QXGA Resolution with 2048 x 1536 pixels. RAID5 Even if a HDD becomes faulty, correct data can be read from the remaining HDDs since 3 or more HDDs are logically regarded as a single HDD and parity data (error correction code data) is automatically attached. Recorded images can be recovered by replacing the failed HDD. 3 or more HDDs are required. Router Placed in between different networks, a router sends data to the proper destination via network. If data on the network is addressed to an external network, routers send the data to the outside of the network after judging the optimum sending route. Schedule recording Function that automatically starts video and audio recording on a preset time schedule. SD memory card (Secure Digital memory card) A small, lightweight and removable storage device having a large capacity. Secondary (DNS) server DNS servers usually have more than 2 systems and the secondary server is the sub system. If there is trouble with the primary server, the secondary server takes over. SMTP (Simple Mail Transfer Protocol) A protocol for sending e-mail on the Internet or an Intranet. Used when transferring mail between servers or when clients send mail to the server. SMTP authentication (Simple Mail Transfer Protocol authentication) SMTP mail transfer protocol appended with a user authentication function. It authenticates passwords and user accounts between SMTP servers and clients. Both SMTP servers and clients must support SMTP authentication. SMTP server A server that supports SMTP, currently the most widely used mail transfer protocol. RAID6 Even if 2 HDDs become faulty, recorded images can be recovered using the remaining HDDs since RAID6 has 2 parity data (error correction code data). 4 or more HDDs are required. Resolution (Image capture size) Resolution refers to the degree of fineness and quality of the camera pictures recorded by this product. In this product, it indicates the number of pixels used in the image displayed on the screen. A horizontal resolution of 640 pixels and a vertical resolution of 480 pixels is expressed as 640x480. SNMP (Simple Network Management Protocol) A protocol for monitoring and managing networked communications devices, such as routers, PCs, cameras and Network Disk Recorders via a network. Subnet mask/Subnet prefix length Numerical value to define whether to use several bits for a network address to distinguish among subnet IP addresses in a network. According to the values, devices can determine which part of the address is the network address and which part is the host address. 187