Installation guide

Altitude 300-2 Getting Started Guide 45

E Power Over Ethernet

Connector Pin Assignments

The Altitude 300-2 complies with the IEEE P802.3af specification in its support of two modes of power

delivery on the RJ45 Ethernet jack. Table 19 shows the pins that are used to deliver -48 volts to the

wireless port, and Figure 12 shows the RJ-45 connector pin number assignments. The Summit 300-48

uses the MDI, Mode A to deliver power to the Altitude 300-2.

Vport = 44 to 57 volts under no load

Figure 12: Ethernet Connector Pin Number Assignment

Table 19: Altitude 300-2 Power Over Ethernet RJ-45 Pin Assignments

Conductor Mode A: MDI (mode used by the Summit 300-48) Mode B: AII

1 Negative Vport

2 Negative Vport

3 Positive Vport

4 Positive Vport

5 Positive Vport Positive Vport

7 Negative Vport

8 Negative Vport

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