User's Manual

pulsAR radio Operator’s Manual
1-5
1.4 Radio Power
The pulsAR radio complies with the IEEE 802.3af Power over Ethernet (PoE) standard when power
is applied over the data line pairs (pins 1-2 and 3-6). You typically can connect the radio directly to a
PoE port of an Ethernet switch or router and it will provide power to the radio.
Alternatively the radio may also be powered over the spare cat5 line pairs (pins 4-5 and 7-8). On
these lines the radio accepts DC voltage over a very wide range (10 VDC to 58 VDC), allowing it to
easily be powered by a 12 V battery. This method is not in compliance with the IEEE 802.3af mode
B.
Afar provides two Power Inserter devices (figure 1.2) that use this second method. One is for
operation from an AC source (110-240 VAC), and the other for operation from a DC source (10 to 58
VDC).
The AC Power Inserter Unit includes a power supply for connection to an AC outlet (110-240 VAC),
two RJ45 connectors and a bi-color LED. The two RJ-45 connectors are labeled “To LAN” and “To
Radio”.
The DC Power Inserter Unit has two RJ45 connectors labeled “Data In”, “P+Data Out”, a green LED,
and a 10 ft pigtail cable for connection to your DC supply voltage or the DC/DC converter.
Figure 1.2 – AC and DC Power Inserter Units