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4.2.2 Configuration DIP Switch Set “S3”
Use the DIP Switches in Switch S3 to set the DTE Rate (for LAN
Bandwidth Allocation), the transmit data sampling point and to reset
the unit to its software default settings. The following table summa-
rizes default positions of DIP Switch S3. Detailed descriptions of each
switch follow the table.
Switch S3-1 through S3-6: DTE Rate
Use Switch S3-1 through S3-6 to provision bandwidth to the LAN
in 64kbps increments up to 2.304Mbps. Peak bandwidth utilization on
the local domain on an Ethernet LAN runs typically between 15% to
20% (1.5Mbps to 2Mbps) of the maximum bit rate of 10Mbps. Traffic
between LANs typically runs even lower -- between 2% to 7%
(200kbps to 700kbps) of the maximum bit rate depending upon appli-
cation and environmental conditions. This is the amount of traffic that
will run across the DSL span.
Set Switches 3-1 through S3-6 to allocate bandwidth based upon
expected LAN to LAN traffic rates. As an example, set applications
which low LAN to LAN bandwidth content between 64kbps and
576kbps. Applications with high bandwidth LAN to LAN content should
be set between 576kbps and 2.304Mbps as required.
S3-1
S3-2 S3-3 S3-4 S3-5 S3-6 DTE Rate (kbps)
Off Off On On On On 64
On On Off On On On 128
Off On Off On On On 192
On Off Off On On On 256
Off Off Off On On On 320
On On On Off On On 384
Off On On Off On On 448
On Off On Off On On 512
12
Off Off On Off On On 576
On On Off Off On On 640
Off On Off Off On On 704
On Off Off Off On On 768
Off Off Off Off On On 832
On On On On Off On 896
Off On On On Off On 960
On Off On On Off On 1024
Off Off On On Off On 1088
On On Off On Off On 1152
Off On Off On Off On 1216
On Off Off On Off On 1280
Off Off Off On Off On 1344
On On On Off Off On 1408
Off On On Off Off On 1472
On Off On Off Off On 1536
On On Off Off Off On 1600
Off On Off Off Off On 1664
On Off Off Off Off On 1728
Off Off Off Off Off On 1792
On On On On On Off 1856
Off On On On On Off 1920
On Off On On On Off 1984
Off Off On On On Off 2048
On On Off On On Off 2112
Off On Off On On Off 2176
On Off Off On On Off 2240
Off Off Off On On Off 2304
Switch S3-7: Reset Software Defaults
Use Switch S3-7 to reset the software configured factory defaults.
This feature is applicable only using the Model 1001MC to SNMP
through Model 1095 central office to manage your units. For more
information, please refer to the Model 1001MC Operations Manual.
S3-7 Setting
On Normal Operation
Off Reset
Switch S3-8: Reserved
Switch S3-8 is reserved for factory use and must remain in the On
position.
NOTE: The Model 1088 will automatically select the optimum
line rate for the required distance based on the DTE rate set by
Switches S3-1 through S3-6. This selection is based on the low-
est line rate that will support the DTE rate.
S3 SUMMARY TABLE
Position Function Factory Default
S3-1 DTE Rate On
S3-2 DTE Rate Off
S3-3 DTE Rate Off
S3-4 DTE Rate Off
S3-5 DTE Rate On
S3-6 DTE Rate On
S3-7 Reset Software Defaults On
Normal Operation
S3-8
Reserved
On
}
768 kbps