3.1.2 Configuration 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.

S3 SUMMARY TABLE

 

Position

Function

Factory Default

 

 

 

 

 

 

 

 

 

S3-1

DTE Rate

On

}

 

 

 

S3-2

DTE Rate

Off

 

 

 

S3-3

DTE Rate

Off

768 kbps

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

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 1.152Mbps. 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

 

 

 

 

7

 

 

Off

On

On

Off

On

On

448

On

Off

On

Off

On

On

512

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

1089

On

On

Off

On

Off

On

1152

NOTE: The Model 1089 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.

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 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.

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Patton electronic 1089/I user manual Configuration Switch Set S3, S3 Summary Table, Switch S3-1 through S3-6 DTE Rate