OPERATION GUIDE
OG_STD-502-R_v09e
Circuit Design, Inc.
12
Important notice
Customers are advised to consult with Circuit Design sales representatives before ordering.
Circuit Design believes the provided information is accurate and reliable. However, Circuit Design
reserves the right to make changes to this product without notice.
Circuit Design products are neither designed nor intended for use in life support applications where
malfunction can reasonably be expected to result in significant personal injury to the user. Any use of
Circuit Design products in such safety-critical applications is understood to be fully at the risk of the
customer and the customer must fully indemnify Circuit Design, Inc for any damages resulting from
any improper use.
As the radio module communicates using electronic radio waves, there are cases where transmission
will be temporarily cut off due to the surrounding environment and method of usage. The manufacturer
is exempt from all responsibility relating to resulting harm to personnel or equipment and other
secondary damage.
The manufacturer is exempt from all responsibility relating to secondary damage resulting from the
operation, performance and reliability of equipment connected to the radio module.
Copyright
All rights in this operation guide are owned by Circuit Design, Inc. No part of this document may be
copied or distributed in part or in whole without the prior written consent of Circuit Design, Inc.
Cautions
Do not use the equipment within the vicinity of devices that may malfunction as a result of electronic
radio waves from the radio module.
Communication performance will be affected by the surrounding environment, so communication tests
should be carried out before actual use.
Ensure that the power supply for the radio module is within the specified rating. Short circuits and
reverse connections may result in overheating and damage and must be avoided at all costs.
Ensure that the power supply has been switched off before attempting any wiring work.
The case is connected to the GND terminal of the internal circuit, so do not make contact between the
'+' side of the power supply terminal and the case.
When batteries are used as the power source, avoid short circuits, recharging, dismantling, and
pressure. Failure to observe this caution may result in the outbreak of fire, overheating and damage to
the equipment. Remove the batteries when the equipment is not to be used for a long period of time.
Failure to observe this caution may result in battery leaks and damage to the equipment.
Do not use this equipment in vehicles with the windows closed, in locations where it is subject to direct
sunlight, or in locations with extremely high humidity.
The radio module is neither waterproof nor splash proof. Ensure that it is not splashed with soot or
water. Do not use the equipment if water or other foreign matter has entered the case.
Do not drop the radio module or otherwise subject it to strong shocks.
Do not subject the equipment to condensation (including moving it from cold locations to locations with
a significant increase in temperature.)
Do not use the equipment in locations where it is likely to be affected by acid, alkalis, organic agents or
corrosive gas.
Do not bend or break the antenna. Metallic objects placed in the vicinity of the antenna will have a
great effect on communication performance. As far as possible, ensure that the equipment is placed
well away from metallic objects.
The GND for the radio module will also affect communication performance. If possible, ensure that the
case GND and the circuit GND are connected to a large GND pattern.
Warnings
Do not take apart or modify the equipment.
Do not remove the product label (the label attached to the upper surface of the module.) Using a
module from which the label has been removed is prohibited.
