ADTRAN TSU IQ+, 1204002L2 user manual Signal Type Signal, T391, N391

Chapter 7. Configuring the Network Port

Frame Relay Options (FR OPTS)

The following selections are available when FRAME RELAY OPTIONS is selected from the NETWORK PORT CONFIGURATION menu:

Signal Type (SIGNAL)

Set the signaling type option to match the network signaling type. AUTO mode forces the TSU IQ+ to use the same signaling type as the attached frame relay DTE. If AUTO is selected and there is no DTE device attached, the TSU IQ+ uses ANSI T1.617-D signaling type.

Choices: NONE, LMI (gang of four), ANSI T1.617-D(Annex D), ITU-TQ.933-A(Annex A), or AUTO.

T391

Set the time (in seconds) between polls to the frame relay network. Range: 5 to 30 seconds.

N391

Determine how many link integrity polls occur in between full status polls.

Range: 1 to 255.

N392 and N393

These parameters define the error threshold for the UNI formed by the TSU IQ+ Network port and the frame relay switch. If the error threshold is met, the signaling state status is changed to down, which indicates a service-affecting condition. This condition is cleared once N393 consecutive error-free events are received. N392 defines the number of errors required in a given event window, while N393 defines the number of polling events in each window.

For example:

If N392=3 and N393= 4, then if three errors occur within any four events the interface is determined inactive.

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