ADC EDU-409 LOOPBACK OPERATION

Loopback Operation 150-409-115-05, Issue 5

LOOPBACK OPERATION

When equipped with the EDU-409 List 1, a HiGain system can execute a number of loopback commands. The loopbacks can be initiated from the ELU craft port or from the ELU front-panel buttons.

For more information about doubler loopback commands, refer to the appropriate ELU practices (see“Product Support” on page 23).

All NDU loopbacks are towards the network. All CDU loopbacks are towards the customer. Figure 3 is a diagram of a HiGain loopback system.

Figure 3. HiGain Loopbacks

10 January 26, 2000 EDU-409 List 1