Appendix B: Connections and Pinouts

Figure B-4 DB9F in RS485 (2-Wire) Mode (xDirect485 & PoE Models)

Ethernet Connector Pinouts

The xDirect supports 10/100 Mbps half or full duplex Ethernet through an RJ45 connector. For PoE option, the xDirect is compliant as an IEEE 802.3af Power Device, Class . Power connections can be established via data pins (1 & 2 and 3 & 6), or spare pins (4 & 5 and 7 & 8).

Figure B-5 RJ45 Ethernet Connector

Table B-6 Ethernet RJ45 Connector Pin-Outs

Pin

Ethernet Data

PoE Alternate A

PoE Alternate B

PoE Alternate C

PoE Alternate D

 

 

(data pins)

(data pins)

(spare pins)

(spare pins)

1

TX+ (out)

VDC+

VDC-

 

 

 

 

 

 

 

 

2

TX- (out)

VDC+

VDC-

 

 

 

 

 

 

 

 

3

RX+ (in)

VDC-

VDC+

 

 

 

 

 

 

 

 

4

 

 

 

VDC+

VDC-

 

 

 

 

 

 

5

 

 

 

VDC+

VDC-

 

 

 

 

 

 

6

RX- (in)

VDC-

VDC+

 

 

 

 

 

 

 

 

7

 

 

 

VDC-

VDC+

 

 

 

 

 

 

8

 

 

 

VDC-

VDC+

 

 

 

 

 

 

Note: The Ethernet connector pin-out above is provided only for reference during installation and troubleshooting. xDirect is not HP Auto-MDIX compatible (i.e. not straight/ cross cable interchangeable). When utilizing PoE to power the xDirect (for PoE model only), use an Ethernet hub/switch or PoE injector that is IEEE 802.3af compliant.

xDirect User Guide

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Lantronix 900-653-R manual Ethernet Connector Pinouts, Table B-6 Ethernet RJ45 Connector Pin-Outs