console man page on Ultrix

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console(4)							    console(4)

Name
       console - console interface

Description
       On  all	but the busless small VAX processors, the console is available
       to the processor through the console registers.	It acts like a	normal
       terminal,  except  that,	 when  the  local  functions are not disabled,
       CTRL/P puts the console in local console	 mode  (where  the  prompt  is
       ``>>>'').  This is true for all processors except the MicroVAX line and
       busless small VAX processors (see the information that  follows).   The
       operation  of the console in this mode varies slightly for each proces‐
       sor.

       On a VAX-11/780 or VAX-11/785, if you press the BREAK key on  the  con‐
       sole,  the  console  goes  into	ODT  (console debugger mode).  Press P
       (uppercase letter p) to return from this mode.

       On a VAX-11/750 or a VAX-11/730 (11/725), the processor is halted when‐
       ever  the  console  is  not in conversational mode.  Press C (uppercase
       letter c) to return to conversational mode.  When in console mode on  a
       VAX-  11/750  that has a remote diagnosis module, a CTRL/D will put you
       in remote diagnosis mode, where the prompt will be ``RDM>''.  The  com‐
       mand will return from remote diagnosis mode to local console mode.

       On  any MicroVAX, halt the processor by pressing the HALT button on the
       front panel.  Pressing CTRL/P has no effect on either the MicroVAX-I or
       the MicroVAX-II.	 Press c (lowercase letter c ) on the console terminal
       to return to the running system after the HALT button is released.

       On the busless small VAX processor, halt the processor by pressing  the
       HALT button on the rear panel (located next to the printer port connec‐
       tor).  If the diagnostic console terminal is attached, halt the proces‐
       sor  by	pressing  the  BREAK key.  For further information, see Typing
       CTRL/P has no effect on the busless small VAX processor.	 Press c (low‐
       ercase  letter c) on the console terminal to return to the running sys‐
       tem.

       On an VAX 8800 (8700, 8500, 8550), you  can  return  to	conversational
       mode using the command (set terminal program) if the processor is still
       running, or if it is halted.  The command can be	 abbreviated  to  Halt
       the  processor by pressing CTRL/P.  Restart the processor by pressing c
       (lowercase letter c).

       On a VAX 8600 (8650), halt the processor by pressing  CTRL/P  when  the
       terminal	 control  switch  on the front panel is in the LOCAL or REMOTE
       position.  When this switch is in the LOCAL position,  pressing	CTRL/P
       at  the	console	 terminal is the only way to halt the processor.  When
       the switch is in the REMOTE position, both the console terminal and the
       remote terminal (if present) can halt the processor.  When the terminal
       control switch is in either LOCAL position, only the  console  terminal
       will  operate  as any other ULTRIX terminal.  When the terminal control
       switch is in either REMOTE position, both the console terminal and  the
       remote terminal will operate as any other ULTRIX terminal.

       On  a VAX 8100 (8200, 8300), halt the processor by pressing CTRL/P when
       the console is ENABLED.	Press c (lowercase letter c) to return to  the
       running system.

Restrictions
       On  all	but  the busless small VAX processors, the console serial line
       should be used at a relatively low baud rate (2400 BPS or less)	as  it
       generally  interrupts  the CPU for each character received or transmit‐
       ted. Higher baud rates are permitted but generally impede  system  per‐
       formance	 so  much as to warrant using a lower baud rate.  On the small
       VAX, the console operates at 9600 BPS for a terminal or 4800 BPS for  a
       graphics device.	 For further information, see

Files
See Also
       cty(4), ss(4), tty(4), MAKEDEV(8)

				      VAX			    console(4)
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