Setting The Dip Switches - 3Com CoreBuilder 5000 User Manual

Setting the DIP
Switches
Each Token Ring Media Module has an 8-position DIP switch.
All of the DIP switch settings on the module are ignored if an
appropriate CoreBuilder 5000 network management module (DMM 2.0
or later, for example) is already installed in the hub (or if you configure
the module to configure from NVRAM). For this reason, use network
management commands, rather than the DIP switch, to configure the
module.
Use the DIP switches to:
Select a network channel for each port on the module (the default
is TR1).
Choose the configuration approach used in hubs, either:
Non-volatile RAM configuration (software configuration) or
DIP Segment selection (DIP-specified module configuration). The
default is configuration from NVRAM. When the module
configures from its NVRAM settings, the module ignores all
hardware DIP settings and uses its last-stored software
configuration.
Set whether or not the module uses a Speed Detect algorithm
(Passive Module only. Other modules detect speed automatically).
The default is disable.
Set a ring speed for the module. The default is 16 Mbps.
It is not possible to use the DIP switches on Token Ring Media Modules
to assign individual ports to different networks.
If you do not have a CoreBuilder 5000 network management module
installed in your hub, your hub's configuration defaults to the DIP
switch settings on the module. The DIP switch 5 setting may instruct
the module to configure from NVRAM. You must set ports 17 and 18
with a jumper.
If you are using a management module and do not plan to use the DIP
configuration command, skip setting the DIP switches and go to the
section titled "Installing the Module"
provides an illustration of the switch location on each Token Ring
Media Module.

Setting the DIP Switches

in this chapter. Figure 3-1
3-5