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Article Number000004112
Problem Resolution
Equipment is generally divided into two classes.

Class A
Digital equipment meant for light industrial use
Less restrictive emissions requirement:
less than 40 dB μV/m at 10 m
(40 dB relative to 1 μV/m) or 300 μV/m

Class B
Digital equipment meant for home use
More restrictive emissions requirement:
30 dB μV/m at 10 m or 100 μV/m

These limits apply over the range of 30–230 MHz. The limits are 7 dB higher for frequencies
above 230 MHz. Although the test range goes to 1 GHz, the emissions from Rabbit-based
systems at frequencies above 300 MHz are generally well below background noise levels.
The OP7200 has been tested and was found to be in conformity with
the following applicable immunity and emission standards. The OP7210
is also CE qualified as it is a sub-version of the OP7200. Boards that
are CE-compliant have the CE mark.
NOTE: Earlier versions of the OP7200 sold before 2003 that do not
have the CE mark are not CE-compliant.

Immunity
The OP7200 operator control panels meet the following EN55024/1998 immunity standards.
• EN61000-4-2 (ESD)
• EN61000-4-3 (Radiated Immunity)
• EN61000-4-4 (EFT)
• EN61000-4-6 (Conducted Immunity)
Additional shielding or filtering may be required for a heavy industrial environment.
Emissions
The OP7200 operator control panels meet the following emission standards emission standards
with the Rabbit 2000 spectrum spreader turned on and set to the normal mode. The
spectrum spreader is only available with Rev. C or higher of the Rabbit 2000 microprocessor.
This microprocessor is used on the OP7200 operator control panels that carry the CE
mark.
• EN55022:1998 Class B
• FCC Part 15 Class B
Your results may vary, depending on your application, so additional shielding or filtering
may be needed to maintain the Class B emission qualification.

Design Guidelines
Note the following requirements for incorporating the OP7200 operator control panels
into your application to comply with CE requirements.

General
• The power supply provided with the Tool Kit is for development purposes only. It is the
customer’s responsibility to provide a CE-compliant power supply for the end-product
application.
• When connecting the OP7200 to outdoor cables, the customer is responsible for providing
CE-approved surge/lightning protection.
• Rabbit recommends placing digital I/O or analog cables that are 3 m or longer in a
metal conduit to assist in maintaining CE compliance and to conform to good cable
design practices. Rabbit also recommends using properly shielded I/O cables in noisy
electromagnetic environments.
• While the OP7200 meets the EN61000-4-2 (ESD) requirements in that it can withstand
contact discharges of ± 4 kV and air discharges of ± 8 kV, it is the responsibility of the
end-user to use proper ESD precautions to prevent ESD damage when installing or servicing
the OP7200.
• To meet electromagnetic compatibility requirements, and in particular to prevent misoperation
or damage from electrostatic discharges, connect the bezel to a protective
ground via a low-impedance path.

Safety
• For personal safety, all inputs and outputs to and from the OP7200 must not be connected
to voltages exceeding SELV levels (42.4 V AC peak, or 60 V DC). Damage to
the Rabbit 2000 microprocessor may result if voltages outside the design range of 0 V
to 5.5 V DC are applied directly to any of its digital inputs.
• The lithium backup battery circuit on the OP7200 has been designed to protect the battery
from hazardous conditions such as reverse charging and excessive current flows.
Do not disable the safety features of the design.

Interfacing the OP7200 to Other Devices
Since the OP7200 operator control panels are designed to be connected to other devices,
good EMC practices should be followed to ensure compliance. CE compliance is ultimately
the responsibility of the integrator.

 

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