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C-12
3162-A2-GB20-40August 2000
Sync Data Port Assignment Options
Table C-5. Sync Data Port Assignment Options (1 of 3)
Sync Data Port Assignments
Assign To: Network
Network DTE Port
Allows you to assign a synchronous data port to DS0 channels on either the network
interface, the DTE Drop/Insert (DSX-1) interface, or another port.
Network – Assigns this port to DS0 channels on the network interface.
DTE – Assigns this port to DS0 channels on the DTE Drop/Insert (DSX-1) interface. If
the DTE Drop/Insert (DSX-1) interface is disabled, this selection does not appear.
Port – Assigns this port to another port. Use this feature to designate a port as a
backup port. You can attach an external backup device to a backup port and manually
assign the selected port to the backup port (i.e., route data from the selected port to the
backup port). When a port is assigned to another port, DSR is turned on. EDL does not
operate when a synchronous data port is assigned to another synchronous data port.
Therefore, if EDL is enabled, it is ignored.
NOTE: Changing this configuration option from one T1 interface to the other
(Network or DTE) deallocates all DS0 channels assigned to the previous
interface.
Sync Data Port Assignments
Assign By: Block
Block ACAMI Channel
If you select NET or DTE using the Assign To configuration option, this configuration
option designates the method for assigning DS0 channels to the destination T1
interface.
Block – Allocates DS0 channels to this port by the block method.
ACAMI – Allocates DS0 channels to this port by the Alternate Channel Alternate Mark
Inversion method. The difference between block and ACAMI is that the number of
channels allocated with ACAMI is double the number needed for the port rate. With
ACAMI, every alternate DS0 channel does not carry data from the port but always
transmits and receives all ones.
Channel – Allocates DS0 channels to this port by the individual channel method.
NOTE: Changing this configuration option from one method to another (Block,
ACAMI, or Channel) deallocates all DS0 channels assigned to either the
network interface or the DTE Drop/Insert (DSX-1) interface.