Backhaul Analyzer Measurement Guide : T1/FT1 Analyzer (Option 51 or 54)   : Out‑of‑service Measurements : Activate Remote Loop Up and Loop Down Code
 
Activate Remote Loop Up and Loop Down Code
1. Press the Pattern/Loop main menu key to activate the pattern and loop code menus.
2. Press the Select Loop Code submenu key to display the Loop menu. Press either the CSU or the NIU submenu key.
3. Select either In‑Band or Data-Link by toggling the Link Type submenu key. (This selection is for ESF only.) Press Back to return to the previous menu.
Note 
Custom user‑defined codes can be created by pressing the Loop Code User1 or Loop Code User2 submenu key and using the Up/Down arrow keys, rotary knob, or key pad to enter the desired loop code.
4. Press the Remote Loop Up submenu key to activate the Loop Code.
5. Press the Remote Loop Down submenu key to deactivate the Loop Code.
Note 
The current setup parameters are displayed in the instrument settings summary table on the left side of the screen.