User's Manual

Walgreens Installation Guide
G-1-2001-2B
Walgreens Installation Guide 2A.doc
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5/27/2008 Page: B-17
Primary MEU
 Determine the location of the dedicated 24 hour uninterrupted power
source for the MEU.
o The first choice is by the Security Screen by the front entrance.
Always use this location if available.
o The second choice is the output power port on the back of the
CMU. If this location is to be used, determine any issues that
would occur pulling the power cable to this location.
o The third choice would be the Communications Area normally
located in the tech room or the stock room.
o If the first two choices are not available call the Goliath Help Desk
to help determine the location of an alternate the power source.
 Determine the location for the Primary MEU.
o The first choice for the location is on a post near the middle aisle of
the store normally around aisle 4 or 8.
o The second choice is suspending the MEU from a roof girder near
the center of the store on the sales floor and the middle aisle. Only
suspend the MEU if a post location can’t be used.
o The actual location is determined by the distance of the MEU from
the following locations:
 MEU power source (maximum cable length 110 feet)
 Rx/ARA antennae (maximum cable length 135 feet)
 Tx/ATA antennae (maximum cable length 110 feet)
 Determine any obstructions in the ceiling and from the ceiling tiles that
affect access to the MEU.
 Specialty cut tiles around posts and other obstacles should not be
removed to access the MEU location if they can easily be broken.
 Determine any obstructions in the ceiling that would affect the path of
your cable pulls.
Secondary MEU
 A secondary MEU will only be used in exception stores. Normally
a secondary MEU will be used in a stock room. The primary reasons
to use a second MEU would be no access for cables to enter the stock
room or the distance of the antennae is too far from the primary MEU.
 Determine the location for the 24 hour uninterrupted power outlet. This
would normally be by the phone block.
 Determine the location for the Secondary MEU.
o The first choice is on a post.
o The second choice is suspended from a roof girder.
o The actual location is determined by the distance of the MEU from
the following:
 MEU power source (maximum cable length 110 feet)
 Rx/ARA antennae (maximum cable length 135 feet)
Tx/ATA antennae (maximum cable length 110 feet)