User's Manual

VCU Unit Installation and Provisioning
Dual-Band MobileAccessVE Instant Coverage Solution User Manual 23
For VAPs installed on currently INACTIVE Ethernet ports, connect as follows.
NOTE: After the Slave VCUs are installed and connected to the correct ports in the patch panels,
please proceed with the VAP installation as described in chapter  5 . However, it is recommended
to complete the VCU provisioning first (see section
 4.3.2) because when installing the VAPs they
will instantly provide the wireless service (and the installer will be able to check the coverage).
4.3.2 Operation with LAN utilizing Power over Ethernet (PoE)
Power over Ethernet (PoE) is a technology that enables passing electrical power over the
Ethernet cabling. Power can either come from a PoE-enabled Ethernet device (e.g. switch) or
from a “mid-span” device built specifically for "injecting" power into the Ethernet cabling.
PoE can operate over two different pairs in a CAT-5e/6 cable. These two methods are referred to
as “alternative a” and ”alternative b”. All PoE compatible appliances, such as WLAN APs and IP
Phones, support both alternatives and automatically detect and use the power on the
appropriate pairs (alternative a or b).
MobileAccessVE supports sharing LAN infrastructures that use either 802.3af PoE or 802.3at
PoE.
In the current release MobileAccessVE supports operation with “alternative a” PoE.
Note: Future enhancements will support coexistence with “alternative b” PoE. If this is currently
required, consult MobileAccess.