Avaya R2 Installation Guide download pdf (Page 72)

Installing the Data Module, Hardware Key, and Remote Maintenance Line

Chapter 3

Installing the Data Module 3-3

Installing the Data Module 3

A digital line is required to connect either the 7400B/7400B Plus (4-wire

digital port only) or 8400B Plus (2-wire digital port only) data module to the

DEFINITY system.

Refer to “Administering” on page 2-5 for data module translations.

When you first apply power to the 7400B/7400B Plus data module, the

progress of the self-test is indicated by the sequential, left-to-right lighting of

the ten front panel LEDs. If the self test finds no problems, the LEDs labeled

“Power/Test” and “TR” remain on and all others go out. The operation of

the LEDs described here assumes that the factory default options are still in

effect.

When you first apply power to the 8400B, the green and red LED remain on

while the 8400B performs a self-test. When the test is complete, the green

LED goes off. If the self-test passes, the red LED remains on. If the self-test

fails, the red LED flashes three times, and then remains on. This indicates a

defective data module.

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Avaya R2 Installation Guide Page 72