Chapter 8. Configuring DBU Options

Local Loopback

This forces the PRI into loopback on the network. This option can be used instead of setting the loopback up using loop codes from external test equipment.

Choices: NONE, PAYLOAD, and LINE.

Transmit PRM

Set this entry to YES to enable the unit to send messages across the facility data link (FDL) per ANSI T1.403.

Switch Type

Select which type of telco CO switch is providing the ISDN service. This information is available from your service provider.

Choices: LUCENT 5ESS, DMS 100, NATIONAL.

LDN

Enter the LDN for this location. This information is available from your service provider.

DCE Options

The DCE OPTIONS field is available when the External DCE option card is installed.

Interface Type

Select the connector type for the DCE interface.

Choices: EIA-232; V.35.

DBU Bit Rate

Set to the operating speed of the DBU interface.

Choices: 0 to 1536 kbps

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ADTRAN TSU IQ+, 1204002L2 user manual DCE Options, Local Loopback, Interface Type, DBU Bit Rate