Installation guide

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4 Power and Grounding
This chapter focuses on how to power-on the AP. The AP can be powered using the
included PoE Power Injector or by a direct connection to a PoE LAN switch.
Connecting the AP to ground is also covered.
This chapter includes these sections:
“Power Injector Module” on page 27
“How to Ground the Unit” on page 29
“How to Install the Power Injector” on page 30
Power Injector Module
The AP receives power through its network cable connection using power-over-
Ethernet technology. A power injector module is included in the AP package and
provides two RJ-45 Ethernet ports, one for connecting to the AP (DATA & POWER
OUT), and the other for connecting to a local LAN switch (DATA IN).
The DATA IN port uses an MDI (that is, internal straight-through) pin configuration.
You can therefore use straight-through twisted-pair cable to connect this port to
most network interconnection devices such as a switch or router that provide MDI-
X ports. However, when connecting the access point to a workstation or other
device that does not have MDI-X ports, you must use crossover twisted-pair cable.
Figure 16: PoE Power Injector
Ethernet from Local Network LED Indicator
Ethernet and Power to AP AC Power Socket (Hidden)
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