Stereo System User Manual
DEFINITY AUDIX System Release 4.0
System Description Pocket Reference 
585-300-214 
Issue 1
May 1999
Customer Responsibilities 
B-2
Environmental Requirements 
Switch documentation identifies specific guidelines for the switch’s 
operating environment. Generally, the customer should use these 
guidelines for creating a suitable operating environment for the 
DEFINITY AUDIX system. The following guidelines represent the 
recommended environmental conditions for DEFINITY switch Release 
7.1 and DEFINITY AUDIX system Release 4.0. See the system 
description for the customer’s switch for more information about 
environmental requirements.
Ta b l e  B - 1
 shows the system’s atmospheric requirements.
Beyond its atmospheric requirements, the DEFINITY AUDIX system also 
has requirements for air purity. Ta b l e  B - 2
 shows the system’s tolerance 
for airborne contaminants
Table B-1. Atmospheric Requirements
Temperature
1
 (° F)
1. For customer sites at altitudes above 5000 feet, subtract 1°F from the 
maximum temperature for every 1000 feet over 5000. For example, 
the maximum temperature at 6000 feet is 84°F; the maximum 
temperature at 7000 feet is 83°F 
Relative humidity (%) Air pressure (psi)
65 to 85 20 to 60 9.4 to 15.2










