192.168.7.3 is an example of an IPv4 address. In TCP/IP v4, an IP address has four numbers, ranging from 0 to 255, separated by dots (decimals). The newer IPv6 address space supports 2 128 (about 3.4 Ч 10 38) addresses. IPv6 uses a 128-bit address, where-as IPv4 uses only 32 bits, which limits the address space to 4,294,967,296 (2 32) possible unique addresses. Two versions of TCP/IP are in use: TCP/IP v4 and TCP/IP v6. Table 2-3 Internet Protocol v4 Classification Systemīy using different subnet masks, IPv4 networks are able to subdivide large networks into smaller, more efficient and easier-to-manage networks and to use classless interdomain routing (CIDR). Each class of IP addresses uses a default subnet mask, as shown in Table 2-3. Class C is designated for small offices and home offices. Class B is designated for mid-sized corporations and ISPs. Class A is designated for large corporations, Internet service providers (ISP), and government. IP addresses in TCP/IP v4 are divided into three major categories that define ranges of IP address-es: Class A, Class B, and Class C.
#Coaxial cable to nmea 2000 network mac
MAC addresses are permanently burned into the NIC and are, therefore, considered physical. IP addresses are considered logical because they can be assigned to the network interface card (NIC) by the network administrator. RG-6-Uses same connectors as RG-59, but has a larger diameter with superior shielding used in cable TV/Internet, satellite TV/Internet, and fixed wireless Internet/TV service 75ohm resistance. Also usedby the long-obsolete ARCnet LAN standard.
#Coaxial cable to nmea 2000 network tv
RG-59-Used in older cable TV or satellite TV installations 75ohm resistance. These cables use the F-connector for direct connection between devices
Two other types of coaxial cable are common in cable Internet, satellite Internet, and fixed wire-less Internet installations. Figure 2-4 compares network cards that use BNC, RJ-45, and AUI (vampire tap) connections.įigure 2-4Combo UTP/BNC/AUI Ethernet network cards (left and right) compared with a UTP/STP-only Ethernet network card (center). BNC-based networks use a T-shaped adapter to pass the signal between stations.
This type of cabling is no longer common in office networks, but it is still used in some types of industrial networks because the cable is well shielded against interference.Ĭoaxial cabling creates a bus topology each end of the bus must be terminated, and if any part of the bus fails, the entire network fails.ġ0Mbps Ethernet used RG-8 coaxial cable with a vampire tap (Thicknet) or RG-58 with a BNC connector. 10Mbps Ethernet used coaxial cables and connectors.
0 kommentar(er)
