Specifications

Excalibur Multirate DAP Installation and Operation
7-16
1. Press the 3 button.
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2. The top line of the screen displays the port's current channel assignment selected
under the Channel Assignment parameter in the Channel Configuration submenu.
The bottom line of the screen displays the names of the tests you can run. (To
select the Loop 2 Error Test, you must first press the > button.)
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You can now run a test through the selected channel by following the same instructions
previously given in the "Activating Timed Tests" and "Activating Loop Tests" sections.
RTN Function
The RTN (Return to Normal) function allows you to return the local or remote unit to a
normal operating mode from a testing mode, clear alarms, and turn off the User LED
when it is lit. If the unit is equipped with an IDBU option, it also allows you to reset the
Automatic Backup Retries function. To do so, follow these steps, starting from the Top
Level menu:
1. Press the 3 button.
Note: Sending a RTN to a remote unit is interruptive when the service is set for DDS.
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