Antaira Technologies - Industrial Ethernet Switches
LNX-800A-E Series - Hardware Manual - v1.0
2.5 Ethernet Ports
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RJ45 Ports
RJ45 Ports (Auto MDI/MDI-X): The RJ45 ports are auto-sensing for 10Base-T, 100Base-TX connections. Auto MDI means
that the switch can connect to another switch or workstation without changing the straight-through or crossover cabling.
See the figures below for straight-through and crossover cabling schematics.
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RJ45 Pin Assignments
Crossover Cable
Straight Through Cable
Pin Number / Signal
Pin Number / Signal
Pin Number / Signal
Pin Number / Signal
1 / RX+
3 / TX+
1 / RX+
1 / TX+
2 / RX-
6 / TX-
2 / RX-
2 / TX-
3 / TX+
1 / RX+
3 / TX+
3 / RX+
6 / TX-
2 / RX-
6 / TX-
6 / RX-
Table 2.2 - 10/100Base-T(X) RJ45 Pin Assignments
Note: “+” and “-” signs represent the polarity of the wires that make up each wire pair.
2.6 Cabling
Use the four twisted-pair, category 5e, or the above cabling for the RJ45 port connections. The cable between the switch
and the link partner (switch, hub, workstation, etc.) must be less than 100 meters (328 ft.) in length.
The small form-factor pluggable (SFP) is a compact optical transceiver used in optical communications for both
telecommunication and data communication applications.
Caution: Please employ optional optical transceiver (SFP/Fixed Fiber) that complies with IEC-60825-1 and
classified as Class 1 laser product.
Attention: Veuillez utiliser un émetteur-récepteur optique en option (SFP/fibre fixe) conforme à la norme
IEC-60825-1 et classé comme produit laser de classe 1.
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