Ericsson LBI-39224 Line Length, Set Site Channel Disbursement, Select Slave Clock Mode, View

LBI-39224

E1), Robbed Bit for T1, and CAS-CC for E1. Select the signaling type from the drop-down list box.

Line Length

This is the distance between the CEC/IMC and the device at the other end of the T1 line, which could be a microwave transceiver, a mux in co-located site equipment, CSU, etc. Line effects change the signal slightly, and the changes become more pronounced the further the signal travels down the line. The outgoing original signal is modified based upon line length so that the signal arriving at the destination closely resembles an ideal signal. Select the line length from the drop- down list box for T1 applications. E1 applications do not support selectable line lengths.

Set Site Channel Disbursement

The Set Site Channel Disbursement field sets the number of channels assigned to the indicated T1/E1 Interface Card. Enter the number of channels in the text box (1 - 24 for T1 or 1 - 31 for E1).

Select Slave Clock Mode

Selecting the Slave Clock Mode is part of a higher level system design, as mentioned earlier. Any system nodes that are connected using T1/E1 Interfaces must remain frequency locked at all times. The T1/E1 Interface design allows for total network synchronization through different CEC/IMC configuration options. A detailed discussion of the higher level system configuration is beyond the scope of this topic; however, for a more detailed discussion refer to T1/E1 Interface Release Notes (350A1909) and CEC/IMC Digital Audio Switch Installation, Set-up, and Troubleshooting (LBI-38938). Select the required clock mode from the drop-down list box.

View

Choose the View button to display the T1/E1 Interface Card Auto- configuration dialog box, which shows the T1/E1 channels and subrate port configurations.

Read Disk

Choose the Read Disk button to view the currently stored configuration on the CEC/IMC Manager hard disk. This normally should be the same as the actual configuration at the CEC/IMC.

Read MSC

Choose the Read MSC button to view the actual configuration at the CEC/IMC (stored in the interface module's NOVRAM). This normally

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