Avaya Digital Drop and Insert (DDI) MUX Przewodnik Instalacji Pobierz pdf (Strona 34)

34 Installing the DDI MUX

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Installation troubleshooting

The Business Communications Manager media bay modules are working when both the

(Power) and (Status) LEDs on the modules are on solid.

• If the (Power) LED does not light, refer to “Shutting down the system” on page 19. After

the Business Communications Manager is correctly shut down, remove the module and check

the connectors at the back of the module for dirt or loose connections.

After you reinstall the module, if the LED still does not light, install a different module into

that bay to check for a possible fault in the backplate. If the second module works, assume that

the first module is defective and replace it with a new module.

• If the (Power) LED lights, but the (Status) light does not light, or continues to blink,

wait 10 minutes to allow for information download. If the light continues to blink, power

down the system and check the DIP switch settings on the module. This might also indicate a

loose cable at the back of the media bay module housing.

• If the LEDs are on solid, but the module cannot communicate or be communicated with, check

the Unified Manager settings for the module.

• If all of the LEDs are flashing continuously, the DDI MUX is initializing.

Problems with equipment

Before continuing, make sure that you have followed the procedures for installing the DDI MUX.

DCD LED is not solid and DSR LED is solid.

There is no network connection. Check the status of the network connection (T1 connection).

The transmit data and/or the receive data LED is not blinking and DSR, RTS and

CTS LEDs are on.

Data not sent over the network.

• Check the DTE configuration.

• Check the connection between the DTE and the DDI MUX.

• Check that you set the type setting for the data module to DDI MUX.

• Check that the interface standard is the same for the DDI MUX and DTE and that you use the

appropriate cable.

• Invert the clock.

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Avaya Digital Drop and Insert (DDI) MUX Przewodnik Instalacji Strona 34