Configuring Systems for Terminals, Printers, and Other Serial Devices (32022-90057)

Describing Asynchronous Devices
How Operation Modes Set Functionality
Chapter 9
162
The logical console can receive messages sent to the system console, but it cannot
execute console commands that require the console attention character (
[CTRL]-A
). When
a logical console is used, the system console can still execute
[CTRL]-A
commands. Refer
to Session-Accepting Devices” later in this chapter for more information on the logical
console.
The logical console cannot be assigned to:
Devices configured with switching enabled.
Devices connected through a PAD.
Devices connected through Telnet/iX.
HP-PB Console Support
HP Precision Bus (HP-PB) provides console support for some models of the H P3000
Series 900 family. It is supported by the SCSI/Console LAN Card. This card provides two
serial ports for remote and session activity. HP e3000 Series 9X8 systems have a third
port available for a UPS device connection.
The first two serial ports only support the 239X and 700/9X terminals and emulators
with Terminal Type 10. They do not support the following:
Set XOFF timer
Set block mode alert character
Set Flow Control characters (XON/XOFF)
Set form feed character
Enable or disable form feed
Set termtype file
FDEVICECONTROL intrinsics
In addition, the console port does not support:
Set parity
Set speed
•Binary mode
The first serial port provides a connection to the local console. The port is always fixed as
LDEV 20. For backwards compatibility with the CIO console, speed and parity on the
console cannot be changed. The speed is set at 9600 baud and the parity is set at none.
The second serial port is capable of connecting to the console port path and connecting
directly to the system. Although the second port can connect directly to the system and
be used as a user port, it should be reserved for remote support access. It is configured as
LDEV 21 by default. Baud line rate is set at 9600 and parity is set at none.
NOTE The second serial port can be set as a remote console or a session port but never both.
When the user port is configured as a modem port for remote support, the session is
aborted after a powerfail, since modem connections do not recover after a powerfail.
The third port, on HP e3000 Series 9X8 systems only, can support an H PPowerTrust
UPS connection. Refer to Chapter 5, “Configuring Serial Devices (for Host-Based
Management), and Chapter 6, “Configuring Serial Devices (for PC-Based