CHAPTER
2 R
EADER
H
ARDWARE
I
NSTALLATION AND
O
PERATION
ALR-9900
H
ARDWARE
S
ETUP
G
UIDE
DOC.
CONTROL
#8102086-000
REV
A
15
Figure 10 - View of the Reader showing mounting holes
Hardware Installation Procedure
1. Select mounting position for antenna(s).
CAUTION: Reader antenna should be positioned so that personnel in
the area for prolonged periods may safely remain at least 23 cm (9 in) in
an uncontrolled environment from the antenna’s surface. See FCC OET
Bulletin 56 “Hazards of radio frequency and electromagnetic fields” and
Bulletin 65 “Human exposure to radio frequency electromagnetic
fields.”
Mount the antenna at the periphery of the desired read window (either
overhead or at the side), so that the position of the most distant tag
passing through the window is no farther from the antenna than the
maximum range specified for your system design.
Position the antenna at a height approximately midway between the
highest and lowest expected tag position. (For example, a pallet tag may
be the lowest tag position to be read, while the top-most case on a fully
stacked pallet may represent your highest tag position.)
NOTE
: To maintain compliance with FCC regulations, use only antenna
and cable supplied with the unit or approved by Alien Technology for use
with the ALR-9900.
2. Select mounting position for reader.
Reader should be positioned close enough to the antenna to
accommodate the cable length without putting strain on the connectors.
Be sure power is available at the selected reader location.
3. Install
reader.
Secure the reader through the two mounting holes on either flange to its
mounting location (wall, post, mounting bracket) using appropriate
hardware.
