Use this procedure to administer the loopback jack.
Procedure
At the management terminal, enter change ds1location (the DS1 Interface media module for which the loopback jack was installed).
Be sure the Near-end CSU type is set to integrated.
On page 2 of the screen, change the Supply CPE loopback jack power field to y.
Note:
Setting this field to y informs the technician that a loopback jack is present on the facility. Using this loopback jack, a technician can determine that the facility is available for remote testing.