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Appendix B: Connections and Pinouts
xDirect User Guide 73
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
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.
Pin Ethernet Data PoE Alternate A
(data pins)
PoE Alternate B
(data pins)
PoE Alternate C
(spare pins)
PoE Alternate D
(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+