Specifications

A.10 Default Configurations
FDDI Configuration Capabilities A–15
NOTE
The DEChub ONE (DEHUA) supports one Ethernet connection, and the
DEChub ONE-MX (DEF1H) supports one Ethernet connection and up to
two ModPMD FDDI connections.
A.10.3 Enabling ModPMD Ports
To use the ModPMD ports of the DEChub ONE-MX a network manager must issue
the appropriate MultiChassis Manager commands to enable the ModPMD ports,
using the building blocks previously described. This task can be accomplished using
MultiChassis Manager or through the setup port of the DEChub ONE-MX docking
station.
A.10.4 Power Failure Recovery
Modules in a DEChub ONE or DEChub ONE-MX retain their configuration so that,
in the event of a power failure, the module returns to the previously configured state.
This previous configuration recall ability applies if a module is removed (powered
off) and then moved to another DEChub ONE docking station that is of the same
model type.
A.10.5 Change of Environment
FDDI network modules recognize a change of environment when moved between a
DEChub 900 MultiSwitch, or a DEChub ONE-MX, or a DEChub ONE docking sta-
tion.
When a change of environment is detected, with the exception of the PEswitch
900TX, the FDDI network modules assume the following default configuration: A
port and B port connect to the network module’s front panel.
The PEswitch 900TX module assumes the following default configuration: A port
and B port connect to the module’s backplane ports only (and not to any DEChub
900 backplane FDDI LAN) or to the DEChub ONE-MX ModPMD ports.