Mimosa Client Help Content
Mimosa Clients Specifications
Copyright © 2014 Mimosa Page 14
Power over Ethernet Specifications
Voltage Specifications
Mimosa radios require 48 volts, but they accept an input range of 44 to 57 volts on a wide variety of pin
combinations. An input voltage of -48 Vdc is also acceptable. The Mimosa PoE for C5 provides 56 volts on 2 pairs of
wires so there is less voltage drop over long cable runs up to 100 m (328 feet).
C5 radios are compatible with
C5 radios are compatible with
passive
passive
PoE only. Do not use an 802.3at or 802.3af PoE with C5.
PoE only. Do not use an 802.3at or 802.3af PoE with C5.
Reverse Polarity Protection
All Mimosa radios include a diode bridge circuit which corrects for reverse polarity on the power inputs, and
improves compatibility with 3rd-party PoE injectors and switches that meet the power specifications
2
.
Table 1 below shows valid combinations of +VE and -VE to the B5/B5c on either 2 or 4 wire pairs. All of the
combinations below will work so long as the Ethernet signal pairs are connected per the wiring standard.
Ethernet Wiring and Signals 4-Pair PoE Options 2-Pair PoE Options
Ethernet
Pin
T568A
Pair
T568B
Pair
1000BASE-T
Signal ID
1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12
1 3 2 DA+ + + + - - - + + + - NA NA - NA NA - NA NA
2 3 2 DA- + + + - - - + + + - NA NA - NA NA - NA NA
3 2 3 DB+ + - - + - + - NA NA + + + NA - NA NA - NA
4 1 1 DC+ - + - - + + NA - NA NA - NA + + + NA NA -
5 1 1 DC- - + - - + + NA - NA NA - NA + + + NA NA -
6 2 3 DB- + - - + - + - NA NA + + + NA - NA NA - NA
7 4 4 DD+ - - + + + - NA NA - NA NA - NA NA - + + +
8 4 4 DD- - - + + + - NA NA - NA NA - NA NA - + + +
Table 1 – Radio Input Voltage Polarization Compatibility
Notes:
Performance will be limited if a 10/100BASE-T PoE is used. Mimosa client radios are designed for speeds that1.
exceed the capability of these standards.
Some 3rd-party PoE injectors may not have a sufficient power budget to deliver full power to all of their ports2.
depending on how many other PoE-powered devices are installed and how much power each device draws.
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