Furuno 9ZWWR2120, Руководство по установке

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S2E-17-0209_IM_WR2120_C
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It also must setup the Subnetwork and Subnet mask. Address space of subnetwork is indicated by
subnet mask. Ex. Subnet mask is 255.255.255.0, which supports 254 addresses.
Regarding IP address, 0 indicates the network itself, 255 is a broadcast address. In this case it can use
xxx.xxx.xxx.1 to xxx.xxx.xxx.254
When choosing LAN cable it is important to note use of Category of Ethernet cables, Cat. 5e
(enhanced category 5) or better quality is required. Larger category numbers have better shielding.
General uses and easy to purchase cables are unshielded and called UTP (unshielded twist pair)
Note:
STP (shielded twist pair) is required which is same as marine products. Maximum length of
about 50 meters between switch and device is best to keep consistent data transfer. For LAN cable
lengths longer than 50 meters, fiber optic cable with media converters should be used.
Check the marking on cables to ensure compatibility
C. STORAGE MEDIA
Hard Disk Drive (HDD) uses several types of connecting interfaces. If using an external HDD for saving
observed data it should use USB 3.0 or faster interface because of large data files.
Transfer speed of USB2.0 is 480Mbps, and USB3.0 is 4Gbps.
Standard USB have 2 types:
USB2.0 (High Speed)
USB3.0 (SuperSpeed)
USB3.1 (SuperSpeed)
Although not standardized generally insulator color of USB 3.0 is blue, and USB 3.1 is teal blue.
Router
Switching Hub
Switching Hub
Device
Address space: 192.168. 1 .0 / 24
Subnet mask: 255.255.255.0
Address space: 192.168. 2 .0 / 24
Subnet mask: 255.255.255.0