User's Manual

CHAPTER 2: COBALT INSTALLATION
COBALT HF RFID CONTROLLERS OPERATOR’S MANUAL
P/N: 17-1320 REV 01 (03-06) PAGE 31 OF 116
2.2 INSTALLATION P RECAUTIONS
RF performance and read/write range can be negatively impacted by the proximity of
metallic objects. Avoid mounting the antenna within 15cm (6 inches) of any metallic
object or surface.
2.2.1 Installation Guidelines
x Do not route cables near unshielded cables or near wiring carrying high voltage
or high current. Cross cables at perpendicular intersections and avoid routing
cables near motors and solenoids.
x Avoid mounting the Cobalt Controller near sources of EMI (electro-magnetic
interference) or near devices that generate high ESD (electro-static discharge)
levels.
x In the event that electrical interference is encountered (as indicated by a
reduction in read/write performance) try relocating the controller to an area away
from the potential source of interference.
x Plan to perform a test phase where you will construct a small scale, independent
network that includes only the essential devices required to test your RFID
application. To avoid possible interference with other devices, avoid connecting
your RFID testing environment to an existing local area network.
x The Cobalt HF Controller is designed to withstand 8kV of direct electro-static
discharge (ESD) and 15kV of air gap discharge. However, it is not uncommon for
some conveyor applications to generate considerably higher ESD levels. Use
adequate ESD prevention measures to dissipate potentially high voltages.
2.2.2 Minimum Distance between Antennas
When using multiple Cobalt HF Controllers/Antennas, maintain the recommended
minimum distance between adjacent Cobalt Antennas (see table below).
COBALT
ANTENNA
1010 2020 3030 0750
1010
60cm 75cm 90cm 50cm
2020
75cm 90cm 1.2m 65cm
3030
90cm 1.2m 2m 90cm
0750
50cm 65cm 90cm 50cm
Table 2-2: Minimum Distance between Antennas