EZCOM-LP Professional Installers Guide Version 1.5 Grayhill Inc. 561 Hillgrove Ave LaGrange, IL 60525 800-426-4383 www.grayhill.
Table Of Contents TABLE OF CONTENTS.................................................................................................................................. 2 FCC INFORMATION....................................................................................................................................... 3 Preface........................................................................................................................................................................................
FCC Information Compliance Statement ( Part 15.19 ) This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesired operation. Warning ( Part 15.
Electrical Issues The system supply must be 5V +/- 2%. As the main power amplifier runs directly off the 5V supply with only passive filtering it’s important to keep the voltage within these limits. Under voltage will cause the unit’s microprocessor to enter reset mode. Over voltage could potentially damage the transmit section. A power supply able to deliver at least 1 Ampere should be used.
Omni Installation Figure 2. Recommended Maxrad omnidirectional antenna configuration. Installation of the omni-directional antenna is similar to the Yagi antenna except that the antenna needs no pointing. Under no circumstances may the antenna be operated within 2 meters of a human body. The omni-directional antenna must be installed with a minimum cable loss of 0.5dB based on the type of coax used. When in doubt use only the pre-measured, Grayhill supplied antenna cable.
Thermal Considerations The unit is rated for operation from –40C to +80C. Ensure that the enclosure temperature stays within these limits even when exposed to direct sunlight or wind. The unit doesn’t generate much heat by itself even while transmitting data. The TX duty cycle is usually less than 30% so don’t rely on the unit to heat itself.
