C. Configuration Options
3160-A2-GB24-10 March 2001 C-13
Port Rate: 384
Next 64 128 192 256 320 384 448 512 576 640 704 768
832 896 960 1024 1088 1152 1216 12 80 1344 1408 147 2 1536 Prev

OR

Next 56 112 168 224 280 336 392 448 504 560 616 672
728 784 840 896 952 1008 1064 1120 1176 1 232 128 8 1344 Prev
Data Port Rate (appears when using the block or ACAMI channel allocation method, or
when a synchronous data port is assigned to another synchronous data port). Design ates
the data rate for the port. Available selections dep end on the current base rate configured
for the port. The factory default for Nx64 is 384 kbps, and Nx56 is 336 kbps.
NOTES:
–This configuration option does not appear if the individual channel allocation
method (Chan) is selected using the Assign By configuration option.
–Changing this configuration option from one rate to another deallocates all DS0
channels assigned to either the network interface or the DTE Drop/Insert (DSX-1)
interface.
–When you enable EDL, 8 kbps of the total bandwidth allocated for this port is not
available to the synchronous data port. For example, if you select 256 kbps and
EDL is enabled, only 248kbps are available.
–When you enable EDL on a synchronous data port and the clock source is set to
that synchronous data port, the external device must provide a clock of 8 kbps less
than the expected data port rate. For example, if you select 64kbps, the external
clock source must supply a 56 kbps clock signal.
–For the 3164 DSU/CSU there is a hardware limitation that limits the combined
bandwidth used by Port1 and Port 3 to a total of 2048 kbps and the combined
bandwidth used by Port2 and Port 4 to 2048 kbps. Thus, when entering this menu,
the rate choices are limited due to this constraint. This limitation only occurs in
configurations mapping a port to a po rt or when mapping ports to the DTE
Drop/Insert (DSX-1) interface and to the network.
Table C-5. Data Port Channel Configuration Options (2 of 4)