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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
Address space: 192.168.1.0/24
Subnet mask: 255.255.255.0
When choosing LAN cable, it is important to use Category of Ethernet cables, Cat. 5e (enhanced
category 5) or better quality. Larger category numbers have better shielding but the latest types are
changing to a different shape.
General uses and easy to purchase cables are unshielded and called UTP (unshielded twist pair)
though, it is not recommended of using for this radar.
It has to follow the type T568A or T568B to crimp LAN connector.
The following configuration of pin and color is a standard type T568B Cat5e RJ45 (8p8c). Both sides of
connectors have to be the same order.
Pin
Color
1. Yellow-White
2. Yellow
3. Green-White
4. Blue
5. Blue-White
6. Green
7. Brown-White
8. Brown
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.
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:
Although
not
standardized
insulator color of USB 3.0 is blue, and
USB 3.1 is teal blue.
Router
Switching Hub
Switching Hub
Device
1 2 3 4 5 6 7 8
generally
USB2.0 (High Speed)
USB3.0 (SuperSpeed)
USB3.1 (SuperSpeed)
61
Address space: 192.168.2.0/24
Subnet mask: 255.255.255.0
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