Cable Requirements
The Lantronix LMS8-A is compatible with UTP (unshielded twisted pair) and STP (shielded twisted pair) cables. EIA category 3,4 or 5 cables can be supported on the RJ45 connectors.
All ports of the LMS8-A are configured as MDI-X ports; Port 2 has an MDI option for connecting to hubs, repeaters or other switches.
The following cable configuration is suggested for the cables attached to an LMS8-A:
| LMS8-A | End | MDI-X | MDI |
| | nodes | ports | ports |
| | | | |
Pin 1 | TD+ | TD+ | RD+ | TD+ |
| | | | |
Pin 2 | TD- | TD- | RD- | TD- |
| | | | |
Pin 3 | RD+ | RD+ | TD+ | RD+ |
| | | | |
Pin 6 | RD- | RD- | TD- | RD- |
| | | | |
1.The cable between the LMS8-A and an end-node or another switch is straight through.
2.The cable between the LMS8-A and a hub or repeater is not straight through but rather a “crossover” (transmit pairs and receive pairs are reversed). By selecting the MDI option (when available), a straight through cable can be used.
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