System Startup, Configuration, and Shutdown Reference Manual (32650-90907)

Appendix A
Using the Access Port (AP)
Configuring the Console
180
Connecting the Remote Support Modem to a Session Port
This command is valid from the remote support modem port only.
Entering SE causes the remote support modem port to connect through to a session port. If DTR is on, the
remote support port’s modem remains connected. The remote support modem is able to initiate a session
using a normal connection protocol, as if a new modem connection had just been established. To reenter
control mode, the remote support port modem must drop the connection and redial.
Using this command and the port operation, a user at the Response Center is able to use control, console, and
session mode without any intervention by the local operator. (The operator must enable remote capability of
the system.)
The following message is generated if the local console operator tries to execute the SE command:
Command may not be executed by local user. (APERR 15)
Enabling the SPU Hex Status Display
The ES command displays the system status line, including the front panel LED codes, on console terminals
during console mode. Console terminal performance and software performance may be affected when a
remote console is connected to the system.
The operating system writes the LED display every 0.5 seconds.
For a 300-bit per second modem, 60 percent of the available throughput is taken by the writing of the LED
code. For a 1200-bit per second modem, 15 percent of the line capacity is used.To minimize the effect, the
entire system status line is not displayed. In console mode, the following display is shown:
CODE: xxxx
The status line is placed over the softkey labels. To temporarily view the soft keys display, enter a Return.
After successfully executing the command, the following message is displayed:
System status display during console mode is enabled.
Disabling the SPU Hex Status Display
Entering DS disables the display of the system status line, including the system front panel hex display codes
on the console during console mode. See the ES command for more details.
The system displays a message when the command is successful:
System status display during console mode is disabled.
Hard Resetting the SPU
Issuing the RS command causes the AP to reset the entire SPU, halting all processing and I/O activity with
the exception of itself and a few operations that must maintain state even over resets. The AP clears all data
from the standard output (SO) and data processing first-in-first-out (DP FIFO) buffers. When the first
character arrives from either buffer, the AP returns the console from control mode to console mode.
NOTE The AP command interpreter is active during the period between command execution and the
arrival of characters (on either buffer ports) from the system, though the control mode prompt
(CM>) isn’t available.
Executing this command generates messages and prompts essential to resetting the system.