The Port Configuration screen displays the current port configuration. The fields are described in the table below.
Click Edit to change the parameters.
Field / Section |
Description |
Port Configuration |
|
AID |
Identifier for port A or B. |
Enabled |
YES or NO indicates if the port is enabled or disabled. |
Framing |
The selected framing type ESF, D4, CAS, CCS, 2048K. |
Compensation |
For ESF and D4 select length in feet (133, 266, 399, 533, 655) of the cable connecting the OT-21 to the network element being synchronized. For CAS,CCS, and 2048K select 75 or 120 ohms. |
Zero Suppression |
Indicates if zero suppression is on or off to suppress or not suppress leading zeros. |
CRC |
Indicates if CRC checking is on or off. On checks the integrity of a block of transmitted data (CRC Generation is only shown for E1 outputs). |
SSM |
Indicates if SSM is on or off for reading or ignoring SSM messages. |
Bit |
Sets the E1 bit position to 4,5,6,7, or 8 (SSM Bit is only shown for E1 outputs). |
AIS |
Indicates if Alarm Indication Signaling is on or off to receive or not receive codes transmitted downstream in a digital network that shows an upstream failure has been detected and alarmed. |
PQL |
The Priority Quality Level (PQL) is a Synchronization Status Message (SSM) table which allows for translation between DS1 and E1 SSMs. |