SW3
GIGABIT/FAST ETHERNET SWITCH TYPE SW3 (DIN) 21/122
USER GUIDE - M0SW3D1905Iv04 - V04 May 2019
FIGURE 9 Location of the SRV maintenance connector
Section 2.6 gives the electrical characteristics of the maintenance connector and its use.
The connector has a protective cap.
2.1 10/100BASE-TX (RJ-45) PORTS
The cable used to connect a 10/100Base-Tx port should be an unshielded twisted 4 pair
category five cable (UTP-5) with 8-pin RJ-45 connectors. The cable length should not be
more than 100 m.
The UTP-5 cable is made up of eight copper wires that form the four twisted pairs, covered
in different coloured insulating material. FIGURE 10 shows the colour of the wires that
make up each one of the pairs, according to ANSI/TIA/EIA-568-A standard.
FIGURE 11 shows the use of each one of the pins of the RJ-45 connector, as well as the
pair it belongs to according to ANSI/TIA/EIA-568-A standard, in the 10/100Base-Tx LAN
interface.
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