4X Rj-45 Ethernet With Power Over Ethernet (Poe) Ports; Isdn Port; Table 3. Rj-45 Ethernet Port Pinout - Hughes 9450 Installation Manual

4X RJ-45 Ethernet with Power over Ethernet (PoE) ports

ISDN port

There are four RJ-45 ports with Power over Ethernet (PoE) on the
IDU. (The 9450L does not have PoE.) The ports supply standard
PoE according to the IEEE 802.3af standard (48 Vdc up to
15.4 W) and 10/100BaseT Ethernet. The pinout of the ports
supports a direct straight-through connection to a PC with a
standard Ethernet cable. Table 3, shows the pinout of the Ethernet
connector.

Table 3. RJ-45 Ethernet port pinout

Pin
1
2
3
4
5
6
7
8
Note: The 48 Vdc for PoE devices is supplied over the TX, RX
pairs. They are only active when an 802.3af compliant device is
plugged in. The other pairs (4, 5, 7, and 8) are unused.
The total power supplied by the PoE is limited to 30.8 W
maximum for 12 V installations and 61.6 W maximum for 24 V
installations. The IDU automatically detects the class of the
device plugged in and will apply power such that the total cannot
exceed these limits. If the user attempts to connect a combination
of devices that require more than this, the IDU will not power
any devices that would cause the limit to be exceeded.
Note: Class 4 (802.3at) PD devices are not supported.
There is one ISDN port on the IDU of the 9450 and 9450E. It
provides 4 kbps voice, 3.1 kHz audio, and 64 kbps data
communication. The following table lists the pinout of the ISDN
connector.
RX+
RX-
TX+
NC
NC
TX-
NC
NC
3004129-0001 Revision E
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