Default Port Modes - HP 9000 Installation And Configuration Manual

Chapter 4

Default Port Modes

The following list shows the mode of the ports.
• All ports on all ACC cards are in Loopback (Tri-state) mode when the
system in which the cards are installed is powered down.
• All ports on all cards are in Loopback mode when the system is
powered up, but the zmon utility has not yet been run in order to
bring up the ZCOM subsystem.
• The ports may be in Loopback, RS-232, X.21, etc. mode when the
system is brought up and zmon is scheduled (by zmasterd) to bring
up the ZCOM subsystem, depending on the TTGEN configuration
file that corresponds to the .tmem file used to bring up the
subsystem. That is, those ports that are configured to be in Loopback
mode will be in Loopback mode. Those that are defined to be in
RS-232 mode will be in RS-232 mode, etc.
Those that are not defined will also be in Loopback mode. (This
would be the case for ports that are on a MUX that is installed into
the system but is not included in the TTGEN configuration file.)
Dual Interface Configurations
Default Port Modes
63