Stereo System User Manual
DEFINITY AUDIX System Release 4.0
System Description Pocket Reference 
585-300-214 
Issue 1
May 1999
Design and Operation 
2-12
Operating Requirements 
Ta b l e  2 - 2  shows the system’s physical dimensions.
Power Requirements
The DEFINITY AUDIX system draws its power from the 5 volt and -48 volt 
buses on the switch’s backplane. Tab le 2 - 3
 shows the power the 
DEFINITY AUDIX system requires from the switch.
Environmental Requirements
The switch and the DEFINITY AUDIX system generate heat as they 
operate. If the operating environment for the system and the switch is 
not properly ventilated, this heat can cause these systems to 
malfunction. Their operations can also be affected by other 
environmental conditions, such as humidity and air quality. 
Switch documentation identifies specific guidelines for the switch’s 
operating temperature and environment. Generally, the customer should 
use these guidelines for creating a suitable operating environment for 
the DEFINITY AUDIX system and protecting the system from harmful 
environmental conditions. 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.
Table 2-2. Physical Dimensions for the DEFINITY AUDIX System
Slots the system 
occupies
Height 
(Inches)
Width 
(Inches)
Length 
(Inches)
Weight 
(Pounds)
2 7.67 1.44 13.77 3.85
Table 2-3. Power Requirements for the DEFINITY AUDIX System
Switch power source 
Maximum power demand from the 
DEFINTIY AUDIX system (Watts)
5 volt bus 20
-48 volt bus 11










