DIVA T/A ISDN Modem User’s Guide ◆ Page 132
Troubleshooting the DIVAT/A
LED Status Indicators on the DIVAT/A

The LED status indicators on the DIVAT/A display the state of the ISDN switch (D-channel)

connection to the remote device (B-channel), and the connection to analog devices.

B1, B2 LEDs

D LED

Link LED

LED Description
Off No call activity on the specified B-channel.
Flashing An outgoing or incoming connection is being established on the specified B-channel.
Steady There is a successful connection on the specified B channel.
LED Description
Off The ISDN physical interface is not activated. The LINK LED might provide additional
status information.
Flashing Flashing indicates that the DIVA T/A has automatically disabled Always On / Dynamic
ISDN due to a failure to dial and bring up the X.25 datalink on the D-channel. You can
still use the DIVA T/A, but without the features of AO/DI.
Some ISDN service providers do not yet support AO/DI. If you know your ISDN line
does not support this feature, disable this option. If you are using Windows, choose a
protocol other than ‘MultiLink PPP with AO/DI’ (see “General Tab” on page38). If you
are using a Macintosh, disable the AO/DI option (see “Advanced Tab” on page70).
If you are unsure if your ISDN line supports AO/DI, check with your service provider
before enabling this option.
If AO/DI is supported and you have subscribed to it, verify that you have correctly
configured your AO/DI settings (see page48 if you are using Windows, or see
page 68 for Macintosh).
Steady The ISDN physical interface is initialized and ready to place calls.
LED Description
Off The ISDN physical interface is not synchronized, or is improperly connected.
Note:In Europe, this indicates an idle condition.
Flashing The ISDN physical interface is synchronizing.
Steady The ISDN physical interface is activated. The D, B1, and B2 LEDs might provide
additional status information.
TX-RX
Phone Serial
DTE
ISDN
B1 B2 FAULT POWERD
DIVA T/A ISDN Modem