User's Guide

First InterComm ™ System User Guide
A29798 Page v
November 2007
General Precautions
• Professional Installation – The VCA100 unit and its antennas must be installed by a qualified,
professional installer.
o Users must not change the antenna types or their location as you risk voiding the
conditions of your FCC license and/or the conditions to which the product has been
certified (consult your installer in these cases).
• DC Power
– Ensure that power into the First InterComm™ System does not exceed 24VDC.
• Explosive Environments
– Ensure the First InterComm™ System is turned off before entering a
blasting area, or in areas posted “T
URN OFF TWO-WAY RADIO”. Sparks in a potentially explosive
atmosphere can cause an explosion or fire resulting in bodily injury or death.