On position, therefore, all ports are initially enabled. Table 1-2 describes the settings and functions for switches 1 through 8.

Table 1-2. Dip Switch SW1 Settings and Interpretations

Switch

Function

Factory

Switch Setting

Default

Off

On

 

 

 

 

 

 

 

1 - 8

Enable/disable port

enable

disable

enable

 

 

 

 

 

If you have an ONline Ethernet Network Management Module installed in your concentrator, you can remotely override these switch settings. Refer to the ONline Ethernet Network Management Module Installation and Operation Guide for information on remotely managing the ports.

Dip Switch SW3 (Crossover Mode, Channel Select, Squelch)

The four switches on dip switch SW3 allow you to:

set port 8 to uncrossed mode

select a channel for the module

set the Squelch level to high (normal) or low (sensitive)

The switches are labeled 1 through 4 and the settings affect all eight ports. Switch 1 allows you to enable or disable crossover mode for port 8. The channel is initially configured for channel 1 (default) and Squelch level is initially configured for high (default). The following sections explain the crossover, channel selection, and Squelch mode.

If you have an ONline Ethernet Network Management Module installed in your concentrator, you can remotely override these switch settings.

1 - 6 ONline Ethernet 10BASE-T Module User’s Guide

Page 22
Image 22
3Com 5108M-TP manual Dip Switch SW3 Crossover Mode, Channel Select, Squelch, Dip Switch SW1 Settings and Interpretations