■/dev/ttyb is inaccessible.
Sometimes, a program will have changed the protection of /dev/ttyb (or the serial port you are using) so that it is no longer accessible. Make sure that /dev/ttyb has the mode set to
■The serial line is in tandem mode.
If the tip connection is in tandem mode, the operating system sometimes sends XON (^S) characters (particularly when programs in other windows are generating lots of output). The XON characters are detected by the Forth word key?, and can cause confusion. The solution is to turn off tandem mode with the ~s !tandem tip command.
■The .cshrc file generates text.
The tip connection opens a
How to Configure a Local Graphics Console
●For information about how to configure a local graphics console, see “How to Configure a Local Graphics Console” on page 36.
How to Set the Diagnostics Level
Before You Begin
Make sure that the power to the system is on and the keyswitch is in the Power- On/Off position. Access your server’s system console either through a remotely connected workstation or by an alphanumeric terminal or graphics console connected to the server’s serial port. See:
■“How to Attach an Alphanumeric (ASCII) Terminal” on page 34
■“How to Configure a Local Graphics Console” on page 36
■“How to Set Up a tip Connection” on page 183
For background information about the available levels of testing, see:
■“About Diagnostic Levels” on page 167
