Connections to the field wiring terminal blocks – GAI-Tronics 69439-001 External Audio Interface (EAI) User Manual
Page 2
Pub. 42004-677L2C
Model 69439-001 External Audio Interface
Page: 2 of 9
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LED Status
Description
On
MCU detects at least one fault in either the AMI acting as the primary audio
generator, or in that AMI’s associated audio paths.
PRI
FLT
Off
The “On” condition is not occurring.
On
MCU detects at least one fault in either the AMI acting as the secondary audio
generator, or in that AMI’s associated cabling.
SEC
FLT
Off
The “On” condition is not occurring.
On
The EAI detects a signal on the associated 600-ohm audio input.
N
OTE
:
The LED labeled AUD
IN
#1
is associated with 600-ohm audio input
1; the LED labeled AUD
IN
#2
is associated with 600-ohm audio input 2, etc.
AUD
IN
#1,
AUD
IN
#2,
AUD
IN
#3,
or,
AUD
IN
#4
Off
The “On” condition is not occurring.
Connections to the Field Wiring Terminal Blocks
Connections to the EAI card are typically accessed via two 26-pin terminal block modules mounted inside
the system’s control cabinet. A ribbon cable connects each terminal block module to the rear of the card
rack housing the EAI card. The actual location of the terminals is shown on the control cabinet outline
and connection drawings. Figure 1 illustrates the terminal block assignments.
Figure 1.