ACCULINK 316x DSU/CSU

Allocating Data Ports

You have the capability of assigning a specific port (Prt1...Prt2 for Models 3160/3161, Prt1...Prt4 for Model 3164) to DS0 channels on either the Network interface or the DSX-1 Drop/Insert T1 interface using the configuration options. Three methods are available to assign DS0 channels to the port:

Block ± Allows a block of contiguous channels to be assigned by specifying a data port rate and a starting DS0 channel. The number of channels assigned is determined by the port rate. Only those DS0 channel numbers that provide enough bandwidth (based on the port's data rate) to be used as a starting channel number are displayed on the screen. These channels are automatically assigned to the destination T1 interface when the block method is used and the starting channel is selected.

ACAMI ± Allows a block of contiguous channels to be assigned by specifying a data port rate and a starting DS0 channel. However, with ACAMI, the number of channels assigned is twice the number needed for the port rate. This is because with ACAMI, every alternate DS0 channel (starting with the n+1 DS0 channel), does not carry data from the port, but instead always transmits and receives all ones.

Chan ± Individually selects the DS0 channels to allocate to the data port. The data port rate is automatically determined based on the number of channels selected.

Once a port is selected, you have access to configuration options to complete the port allocation procedure. These configuration options enable you to,

Assign the selected port to the desired interface

Select the desired method for channel allocation

Select the port rate and starting channel (if the allocation method is block or ACAMI)

NOTE

For the 3164 DSU/CSU, there is a hardware limitation that limits the combined bandwidth used by Port1 and Port3 to a total of

2048 kbps, and the combined bandwidth used by Port2 and Port4 to 2048 kbps. Thus, the rate choices shall be limited appropriately due to this constraint. This limitation should only occur in configurations mapping a port to a port or when mapping ports to the DSX-1 and to the network.

Select the specific channels if the allocation method is individual channel

These configuration options are explained in detail in Appendix C.

To select the data port,

1.Press F3 to select Cnfig from the top-level menu screen.

DSU ESF

Stat Test Cnfig

F1 F2 F3

2.Select the configuration option set to be copied into the Edit area by using the appropriate function key. Use the scroll keys, if necessary.

Load from:

 

Activ

Cust

Fact1

F1

F2

F3

3-42

December 1996

3160-A2-GB22-10

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Paradyne 316x manual Allocating Data Ports