Gai-tronics 69439-001 External Audio Interface (EAI) Manual do Utilizador descarregar pdf (Página 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.

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.

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Gai-tronics 69439-001 External Audio Interface (EAI) Manual do Utilizador Página 2