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SET MODULE FIFO_FILL_LEVEL
2-141
SET MODULE
FIFO_FILL_LEVEL
Use the SET MODULE FIFO_FILL_LEVEL command to change the FIFO fill level.
This command applies only to certain older ONline Ethernet Twisted Pair
Modules (Model Number 5108M-UTP).
The FIFO fill level controls the number of received bits loaded into the internal
FIFO buffer before the bits are unloaded. The factory-set FIFO fill level is 8 bits.
To increase the achievable link distance by approximately 20 meters, set the FIFO
fill level to 7 bits (a savings of one bit or 100 ns). This savings allows connection
to a device that might be too far away otherwise. However, if jitter is a
problem, set the FIFO fill level to 8 bits.
Format
Example
The following command sets the FIFO fill level for the module in slot 1 to 7:
CB5000> set module 1.1 fifo_fill_level 7
Fifo fill level set to 7.
Related Command
SHOW MODULE
set module
slot.
1
fifo_fill_level
number of bits
slot.
1
Selects the module for which you want to set the fill level. Valid values are
hub slot 1 through 17, subslot 1.
number of bits Sets the number of bits. Valid values are 7 and 8.