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AirborneM2M™ Users Guide
B&B Electronics, Inc.
1/9/2014
13
5.2
Ethernet Port
The AirborneM2M
™10/100Mbps interface supports auto negotiation. The
interface also supports both half and full duplex for 10Mbps and 100Mbps.Table
2 shows the interface pinout.
In some models, the Ethernet port supports Power over Ethernet (PoE) when
connected to an 802.3af Class 1 PSE device. Both Mode A (MDI and MDI-X) and
Mode B powering schemes are supported (Table 3).
Figure 3 - Ethernet Jack Pinout
Table 2 - Ethernet Connector Pinout
Pin
RJ45 Socket
1
TxD+
2
TxD-
3
RxD+
4
NC
5
NC
6
RxD-
7
NC
8
NC
Green LED
Unused
Yellow LED
Ethernet Link/Activity:
Off
No Ethernet Link
On
Ethernet Link active
Flashing
Network activity
Table 3 - PoE Pinout Alternatives
Pin
Alternate A
(MDI-X)
Alternate A
(MDI)
Alternate B
(All)
1
Negative V
PSE
Positive V
PSE
2
Negative V
PSE
Positive V
PSE
3
Positive V
PSE
Negative V
PSE
4
Positive V
PSE
5
Positive V
PSE
6
Positive V
PSE
Negative V
PSE
7
Negative V
PSE
8
Negative V
PSE