GAI-Tronics 013-020095-002 Elemec3 System Controller - Manual (Page 6)

Pub. 42004-480B
Model 013-02-0095-002 Elemec3 System Controller Page 6 of 11
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Installation
Mount the Elemec3 System Controller in the 19-inch rack using the supplied hardware.
The following is a discussion of the types of Elemec3 systems that can be configured. Refer to your
system manual for complete information.
Single System
In a single type system, the Elemec3 System Controller is typically installed in the top position of a
standard EIA 19-inch Elemec3 system equipment rack. It requires 1U (1.75 inches) of height.
Duplicate System
In a “duplicated” or redundant system, two Elemec3 System Controllers, designated as A and B, are
located in system racks at different location. In this type of system there are two sets of amplifiers (also
designated as A and B) with the two speaker loops run in different routes. If one Elemec3 System
Controller should fail, there would be a 50% loss of audible coverage.
Hot Standby (N+1) System
In a different type of redundant system, referred to as a Hot Standby (N+1), two Controllers, designated
as A and B, are located in the same cabinet and control a single set of amplifiers. The advantage to this
type of system is that there is no loss of coverage if one Elemec3 System Controller should fail.