Thuraya IP Voyager User Manual download pdf (Page 11)

• Package materials

Power port

The power port is the connection from the power supply (vehicle battery or some other

12 or 24Vdc power source) to the BDU. The power cable has a positive DC power line,

a Remote Switch line and a negative DC power line.

Line type Pin number

V+ DC power line 1

Remote Switch 2

V- DC power line 3

Table 2. Power port pin out

Four RJ-45 Ethernet with Power over Ethernet (PoE) ports

There are four RJ-45 ports with Power over Ethernet (PoE) on the BDU. The ports

supply standard PoE according to the IEEE 802.3af standard 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.

1 RX+

2 RX-

3 TX+

4 NC

5 NC

6 TX-

7 NC

8 NC

Table 3. RJ-45 Ethernet port pinout

Note: The +48V and -48V are 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 30W maximum for 12V installations

and 60W maximum for 24V installations. The BDU automatically detects the class of

the device plugged in and will apply power so that the total cannot exceed these limits.

If the user attempts to connect a combination of devices that require more than this,

the BDU will not power any devices that would cause the limit to be exceeded.

Note: Class 4 (802.3at) PD devices are not supported.

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Thuraya IP Voyager User Manual Page 11