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Important Follow-up to Inovonics Product Warning

March 07, 2001

Follow-up to Inovonics Product Warning, dated January 17, 2001

The following is an Inovonics Press Release: In January of this year, we notified you of potential performance degradation in some repeater and locator products installed in the NEMA outdoor enclosure. Products involved in the notification were the FA525 and FA575 Repeaters, FA526 Locators, and any repeater or receiver product installed in the NEMA enclosure (ACC640). If you did not receive the January communications, or have questions regarding this potential issue, please contact us at 800-782-2709.

The purpose of this letter is to update you on our activities related to addressing this potential problem. First, you should know that resolving this issue is a priority at every level of the Inovonics organization. We are actively seeking information regarding the factors influencing diminished reception capability in some repeaters.

Our goal is to provide you with a definitive response plan.

The obscure nature of this potential problem combined with the numerous influencing factors has made progress difficult. It is requiring significant data collection and analysis for us to confidently develop a response plan. Over the past six weeks, we have made progress toward our goal; however, at this time, we do not have enough answers to provide you with a final plan.

We appreciate your patience and your heightened awareness of the potential problem. For now, you should follow the recommendations provided in the January letter (and attached here) to ensure that your systems are performing correctly.

Inovonics continues to pursue a resolution to this potential situation. We expect to send additional information on this matter by April 9. We apologize for any inconvenience that this issue may cause you. If you have any questions, or if we can be of any service, please do not hesitate to call us at 800-782-2709, between 7 am and 6 pm Mountain Time, Mondays through Friday, or send email to

Inovonics recommends that you take the following action if any sites that you currently service or originally installed include any of the involved products. If

The site has only fixed point transmitters and they are fully supervised‚¶

Immediately inform the end-used of this potential degradation, and ensure that all points are, in fact, fixed and supervised. Check t make certain that every point is communicating with the receiver, and that there are no inactive transmitters.

The site has any portable or un-supervised transmitters‚¶‚¶‚¶.

Immediately inform the end-user of this potential degradation, and conduct thorough and frequent manual tests. Be sure that the entire area covered by repeater(s) is tested. Additionally, refer to Tech Note TN-1073 included in the January 17th Product Warning letter, for additional details on supervising systems with portable transmitters.

There is any indication of degradation in repeater performance‚¶‚¶

Advise the end-user to immediately take the system out of service. Contact Inovonics to arrange for further assistance, which may include the exchange of repeaters and/or locators. Careful consideration will be needed to determine if the repeater(s) performance has been impacted by corrosion or if changes in the operating environment are calling for more repeaters to be added to the site.

In all applications involving life safety, Inovonics encourages you to renew your emphasis on supervising all transmitters and performing manual testing at least once per week. This regular monitoring for proper operation is essential to enhance the probability that the system will perform properly if required. For additional details, please refer to the information on supervision, system performance, and system limitations included in the installation instructions provided with every product, or contact us directly.