T1 Physical Layer Configuration
| T1 PHYSICAL LAYER CONFIGURATION |
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1. | Transmit Clock Source | Adaptive |
2. | Loopback State | Disable |
3. | Channel Type | |
4. | Channel Code | B8ZS |
5. | Channel Mode | DSU |
6. | Channel Length/Tx Gain | |
7. | Restore Time | 1 second |
8. | Idle Code | 7E |
9. | Signaling Mode | CAS enable |
A. Cond. Data pattern | 7F | |
B. Cond. CAS (AB/ABCD) pattern | 01 | |
C. Cond. CAS first 2.5sec pattern(FF=NULL) | FF | |
ESC. Exit |
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| Current port is the USER PORT |
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Select | item from the menu. |
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Figure 3-30. T1 Physical Layer Configuration Menu
Note When “unframed” mode is selected, the Restore Time, Idle Code, Signaling Mode, Cond Data Pattern, Cond CAS (AB/ABCD) Pattern and Cond. CAS first 2.5sec pattern (FF=NULL) fields are not present.
When CAS Disabled is selected, the Cond CAS Pattern and Cond. CAS first 2.5sec pattern (FF=NULL) fields are not present.
➤To change the source of the transmit clock:
•Type 1 and press the spacebar on your keyboard to toggle between Adaptive/Loopback/Internal/External
Adaptive: | Adaptive clock regeneration |
Loopback: | T1 recovered receive clock used as the transmit clock |
Internal: | Local clock source used |
Default value: Adaptive
Configuring |
