DPtech LSW3003 Series Industrial Ethernet Switch Installation Manual
Chapter 1 Product Introduction
7
Figure1-4
RJ45 pinout diagram
3.Ethernet cable
Ethernet electric interface adopt 5 categories twisted pair cable to connect Ethernet, as shown in
Figure1-5.
Figure1-5
Ethernet cable diagram
For different usage, Ethernet twisted pair cables can be divided into straight-through and crossover
cables:
Standard cable: is also called straight-through cable. The sequences of the twisted pairs crimped in the
RJ-45 connectors at both ends are the same. It connects a terminal device (PC or router) to a HUB or
LAN Switch. A standard cable is provided for you along with the device.
Crossover cable: The sequences of the twisted pairs crimped in the RJ-45 connectors at both ends are
different. It connects a terminal device (PC or router) to another terminal device. You make crossover
cables by yourself.
1.4.4 Ethernet optical interface
To view the Ethernet optical interface properties, connector and optical fiber , please refer to the
<DP tech optical module manual.
1.5 Product component
1.5.1 Interface module (LSW-4T)
The interface module (LSW-4T) provides external 4* 100M Ethernet interfaces (RJ45).
