Pattern/Loop Menu

Key Sequence: Pattern Loop

T1 Pattern Loop

Select Pattern After highlighting a pattern, press this submenu key to select the highlighted pattern. Set User Pattern Use this submenu key to set a specific user pattern in one or more of the six available user patterns. User-Pat # These six submenu keys each select a different user pattern. Set the patterns by entering zeros or ones, up to a maximum of 24 bits. Press Enter to continue or Esc to abort. Inverse Pattern, Off/On This submenu key toggles the Inverse Pattern function OFF and ON. When on, the selected PRBS pattern is inverted. Select Loop Code This submenu key opens the “Select Loop Code Menu”, from which you can select 1 of 7 loop configurations. Remote Loop Up This submenu key causes the loop-up code to be transmitted on the circuit under test. Remote Loop Down This submenu key sends the loop-down code to the circuit under test.

Select Loop Code Menu

Key Sequence: Pattern Loop > Select Loop Code

T1 Loop Code

CSU Press this submenu key to select CSU (Channel Service Unit) codes. NIU Press this submenu key to select NIU (Network Interface Unit) codes. Link Type Press this submenu key to toggle between In-Band and Data-Link. Use Data‑Link when framing is ESF. Self Loop Up Press this submenu key to activate internal loop back. Self Loop Down Press this submenu key to deactivate internal loop back, reverting the instrument to a through mode. Loop Code User 1 Loop Code User 2 Press one of these submenu keys to set the user Loop Up and Loop Down codes. Back Return to the “Pattern/Loop Menu”.

 

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