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Chapter 7. Test Menu
Remote Loopbk
This activates the same loopbacks as Local Loopback but at the far end. It uses either the inband loopup code as specified by ANSI T1.403 for line loopback (ATT
Name | Description |
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ATT | Activates the line loopback using inband code |
LLB |
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ANSI FDL PLB | Initiates the transmission of an FDL payload |
| loopup code toward the far end |
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ANSI FDL LLB | Initiates the transmission of an FDL line |
| loopup code toward the far end |
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ANSI FT1 LLB | Initiates the transmission of a FT1 loopback |
| using the inband code described in T1.403. |
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No Loopback | Deactivates the loopback |
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Remote Loopback can only be used with Fractional T1 if the ANSI FT1 LLB is selected.
After a Remote Loopback option is selected, the TSU 600 verifies that the far end is actually in a loopback by checking for the receipt of a code looped back from the far end. Once the Remote Loopback type is select- ed, the LCD displays the loopback progress by displaying Looping until loopback is verified.
TSU 600 User Manual |