ADTRAN 1200070L1, 1200070L2 user manual Bandwidth/Samples

Chapter 3: Terminal Menu Operation and Structure

Bandwidth/Upper Threshold Write security: 3; Read security: 5

This is the percentage of bandwidth that must be at least present on one B- channel before a second B-channel is added. The range is 0 to 100 and is in per- centages. The default is 80%, which is equivalent to 51.2 kbps. See the section Bandwidth/Samples (below) for more information on how the bandwidth rate is calculated.

Bandwidth/Lower Threshold Write security: 3; Read security: 5

This is the percentage of maximum bandwidth the bit rate must go below on two B-channels before one is dropped. The range is 0 to 100 and is in percent- ages. The default is 30%, which is equivalent to 38.4 kbps. See the section Bandwidth/Samples (below) for more information on how the bandwidth rate is calculated.

Bandwidth/Min Channels Write security: 3; Read security: 5

This represents the minimum number of B-channels that must be up for this Connection List profile. This value ranges from 0 to 2. The default is 0.

Bandwidth/Max Channels Write security: 3; Read security: 5

This represents the maximum number of B-channels this Connection List pro- file can have. The allowed values are 1 and 2. The default is 2. A value of 1 means that no extra bandwidth can be obtained for this connection.

Bandwidth/Samples

The parameters under this menu control the rate at which the Express XL/XLT samples the bandwidth on the B-channel(s).

Samples/Sample Rate Write security: 3; Read security: 5

This is the time between samples used for calculating data rates on the ISDN call. The value is in seconds and ranges from 1 to 255. The default is 5 seconds.

Samples/Samples Write security: 3; Read security: 5

This is the number of WAN data rate samples taken before a decision to change bandwidth is performed. The range is 1 (def) to 255 samples.

78 Express XL/XLT User Manual 61200.070L1-1