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CHARON-VAX console ports can be configured to connect to an external terminal via the host system COM/TTY port or can be connected via TCP/IP.

rts

Parameter	rts[<line>]
Type	Text string
Value	"On" - assert RTS (Request To Send) signal "Off" - clear RTS signal (default) "DTR" - assert RTS signal as soon as DTR signal is asserted ( Applicable only for QUART )

dsr

Parameter

dsr[<line>]

Type

Text string

Value

"On" - always reports DSR signal asserted
"Off" - always reports DSR signal deasserted
"DSR" - use DSR signal of physical serial line (if configured)
"CD", "DCD", "RLSD" - use CD (carrier detect) signal of physical serial line (if configured)

Info
This parameter is applicable only for line "2" of QUART. UART has no such parameter.

communication

Parameter	communication[<line>]
Type	Text string
Value	"ASCII" - for connection to terminals (default) "BINARY" - for serial lines carrying binary (packet) protocols, which are used mainly for communicating with PLCs

line

Parameter	line[<line>]
Type	Identifier
Value	This parameter is used to connect a particular serial line interface to the controller. See below for details.

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Asynchronous serial line multiplexers are capable of serving up to 8 asynchronous serial lines (the DHW42-BA supports 16 lines).The following asynchronous serial line multiplexers are supported:

VAX model	Asynchronous serial line emulation
MicroVAX II, MicroVAX 3600, MicroVAX 3900, VAXserver 3600, VAXserver 3900 (QBUS systems)	CXA16, CXB16, CXY08, DHQ11, DHV11, DZV11, DZQ11, DL11, DLV11, DZ11
MicroVAX 3100 - 96, MicroVAX 3100 - 98 (SCSI systems)	DHW42-AA, DHW42-BA, DHW42-CA
VAX4000 - 106, VAX4000 – 108, VAX4000 – 700, VAX4000 – 705 (QBUS/SCSI systems)	CXA16, CXB16, CXY08, DHQ11, DHV11, DZV11, DZQ11, DLV11, DHW42-AA, DHW42-BA, DHW42-CA
VAX6310, VAXstation 4090	N/A

The following names are used for the multiplexers:

Device name	Module name
DHV11	DHV11
DHQ11	DHV11
CXY08	DHV11
CXA16	DHV11
CXB16	DHV11
DHW42AA	DHV11
DHW42BA	DHV11
DHW42CA	DHV11
DZV11, DZ11	DZ11
DZQ11	DZ11
DL11, DLV11	DL11

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The multiplexers offer the following configuration parameters, specified with the "set" command:

address

Parameter

address

Type

Numeric

Value

Specifies CSR address. The address must be valid QBUS 22-bit wide address in I/O space.Default values are 017760440 for DHV11-family controllers and 017760100 for DZV11/DZQ11, which are the factory settings for asynchronous serial line multiplexers.

Warning
This parameter is not applicable to DHW42-xx serial line controllers

vector

Parameter

vector

Type

Numeric

Value

Specifies interrupt vector.Default value is 0300 which is the factory setting for asynchronous serial line multiplexers.

Warning
This parameter is not applicable to DHW42-xx serial line controllers

line

Parameter

line[N]

N=0…3 (7,15)

Type

Identifier

Value

Specifies a name of the serial line interface object in configuration to which the N-th line of the multiplexer is connected. See below for details.

communication

Parameter

communication[N]

N=0…4 (7,15)

Type

Text String

Value

"ASCII" - for connection to terminals (default)
"BINARY" - for serial lines carrying binary (packet) protocols, which are used mainly for communicating with PLCs

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rts

Parameter

rts[N]

N=0…3 (7,15)

Type

Text String

Value

Controls RTS signal of the Nth line of the multiplexer.

"On" - assert RTS (Request To Send) signal
"Off" - clear RTS signal (default)
"DTR" - assert RTS signal as soon as DTR signal is asserted

When left blank (initial state), the level of the RTS signal is as requested by the VAX software.

dsr

Parameter

dsr[N]

N=0…(7,15)

Type

Text String

Value

"On" - always reports DSR signal asserted
"Off" - always reports DSR signal deasserted
"DSR" - use DSR signal of physical serial line (if configured)
"CD", "DCD", "RLSD" - use CD (carrier detect) signal of physical serial line (if configured)

Info
This parameter is applicable only for DZV11 and DZQ11 serial lines controllers

tx_q_max_depth

Parameter

tx_q_max_depth[N]

N=0…3 (7,15)

Type

Numeric

Value

Specifies depth of the TX FIFO for the N-th line of the multiplexer. Possible values are 1…1000, initially it is set to 1 to properly represent the hardware limitation of certain multiplexers. Values greater than 1 improve transmission rate of corresponding line, but break correspondence to the original hardware.

Info
This parameter is applicable only for DHV11 serial lines controller

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Types of serial line mapping

Type	Function
physical_serial_line	This type of mapping associates some TTY port on host system with an emulated VAX serial line controller virtual "line".The TTY port can be physical hardware port or a logical TTY port.
virtual_serial_line	This type of mapping associates a network connection on the host system with an emulated VAX serial line controller virtual "line"
operator_console	This type of mapping associates the current TTY console with the OPA0 console port (if CHARON-VAX does not run as service)

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load physical_serial_line OPA0

physical_serial_line

line

Parameter line

Type Text string

Value

A defined TTY port on host system:

"/dev/tty<N>" - virtual serial lines
"/dev/ttyS<N>" - onboard serial lines
"/dev/ttyUSB<N>" - modem or usb serial lines adapters
"/dev/tty<XXX>" - proprietary (depending on a driver) devices such as DIGI or MOXA cards

Warning
If a virtual console "/dev/tty<N>" is going to be used, it must be freed from all the processes running on it at first. Refer to your OS documentation for details, also some description on how to do it is available here.

Warning
A specific account for running CHARON ("charon") does not allow usage of virtual consoles "`/dev/tty<N>`" as CHARON consoles. If you plan to map CHARON console or serial lines to "`/dev/tty<N>`" use only "root" account for CHARON running.

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baud

Parameter baud

Type Numeric

Value

Forces the baud rate of the corresponding TTY port to a specified value.The variety of supported values depends on the underlying physical communication resource (TTY port).

The most widely used values are: 300, 1200, 9600, 19200, 38400.

Example:

set OPA0 baud=38400

break_on

Parameter break_on

Type Text string

Value

Specifies what byte sequences received over the physical serial line will trigger a HALT command.

This parameter works only for the console line (for the one UART line and "line[3]" of QUART).

Specify the following values: "Ctrl-P", "Break" or "none" ("none" disables triggering HALT condition).

Example:

set OPA0 break_on="Ctrl-P"

The default value is "Break" for line 3 of QUART and "none" for other lines.

stop_on

Parameter stop_on

Type Text string

Value

Specifies what byte sequences received over the physical serial line will trigger a STOP condition.

This parameter works only for the console line (for the one UART line and "line[3]" of QUART).

The STOP condition causes CHARON-VAX to exit.Specify the value as the following: “F6” or “none” ("none" disables triggering STOP condition).

Example:

set OPA0 stop_on="F6"

The default value is "none".

Setting "F6" triggers the STOP condition upon receipt of the "<ESC>[17~" sequence. Terminals usually send these sequences on pressing F6 button

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log

Parameter log

Type Text string

Value

A string specifying a file name to store content of console sessions or a directory where log files for each individual session will be stored.If an existing directory is specified, CHARON-VAX automatically enables creation of individual log files for each session.

If the "log" parameter is omitted, CHARON-VAX does not create a console log.

Examples 1:

set OPA0 log="log.txt"

Examples 2:

set OPA0 log="/opt/charon/logs"

log_file_size

Parameter log_file_size

Type Text string

Value

If log rotation is enabled, the log_file_size parameter determines the log file size threshold at which the log is automatically rotated.

"unlimited" or "0" (default) - the feature is disabled
"default" - default size is used (4Mb)
<size>[KMG] - size of the current log file in bytes with additional multipliers:
- K - Kilobyte - multiply by 1024
- M - Megabyte - multiply by 1024*1024
- G - Gigabyte - multiply by 1024*1024*1024

Example 1:

set OPA0 log_file_size="default"

Example 2:

set OPA0 log_file_size=10M

Minimum log file size is 64K, maximum is 1G. Setting size less then 64K effectively makes the log file unlimited.

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virtual_serial_line

host

Parameter host

Type Text string

Value

A remote host’s IP address or a host name (and optional remote TCP/IP port number) for the virtual serial line connection.

If omitted, the virtual serial line does not initiate a connection to the remote host and will listen for incoming connection requests.

Specify the value in the following form:

set OPA0 host="<host-name>[:<port-no>]"

If "<port-no>" is not specified, the virtual serial line uses the TCP/IP port number specified by the "port" parameter (see below).

port

Parameter	port
Type	Numeric
Value	TCP/IP port number for the virtual serial line. A virtual serial line always listens on this port for incoming connection requests.

application

Parameter application

Type Text string

Value

A command line for calling some host application for communication to Charon on a given serial line.

Example:

set OPA0 application = "xterm -title OPA0 -e telnet 127.0.0.1 10003"

If "putty" terminal emulator is going to be used as an option, copy the following file to your home directory:

# cp /opt/charon/putty/sessions/CHTERM-VT100 $HOME/.config/putty/sessions

Example:

set OPA0 application = "putty -load CHTERM-VT100 -title OPA0@XYZ -P 10003"

break_on

Parameter break_on

Type Text string

Value

Specifies what byte sequences received over virtual serial line must trigger HALT command.

This parameter works only for console line (for CHARON-VAX it is the only line of UART and the "line[3]" of QUART).

Specify the following values: "Ctrl-P", "Break" or "none" to disable triggering HALT condition.

Example:

set OPA0 break_on="Ctrl-P"

The default value is "Break" for line 3 of QUART and "none" for other lines.

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stop_on

Parameter stop_on

Type Text string

Value

Specifies what byte sequences received over the virtual serial line will trigger a STOP condition. The STOP condition causes CHARON-VAX to exit.

This parameter works only for console line (for CHARON-VAX it is the only line of UART and the "line[3]" of QUART).

Specify the value as the following: “F6” or “none” ("none" disables triggering STOP condition).

Example:

set OPA0 stop_on="F6"

The default value is "none".Setting "F6" triggers the STOP condition upon receipt of the "<ESC>[17~" sequence.

log

Parameter log

Type Text string

Value

A string specifying a file name to store content of console sessions or a directory where log files for each individual session will be stored.If an existing directory is specified, CHARON-VAX automatically enables creation of individual log file for each session.

If the "log" parameter is omitted CHARON-VAX does not create any console log.

Example 1:

set OPA0 log="log.txt"

Example 2:

set OPA0 log="/opt/charon/logs"

log_file_size

Parameter log_file_size

Type Text string

Value

If log rotation is enabled, the log_file_size parameter determines the log file size threshold at which the log is automatically rotated.

"unlimited" or "0" (default) - the feature is disabled
"default" - default size is used (4Mb)
<size>[KMG] - size of the current log file in bytes with additional multipliers:
- K - Kilobyte - multiply by 1024
- M - Megabyte - multiply by 1024*1024
- G - Gigabyte - multiply by 1024*1024*1024

Example 1:

set OPA0 log_file_size="default"

Example 2:

set OPA0 log_file_size=10M

Minimum log file size is 64K, maximum is 1G. Setting size less then 64K effectively makes the log file unlimited.

log_flush_period

Parameter log_flush_period

Type Numeric

Value

<period-in-seconds>

Defines a period of flushing log to disk.

Default period is 60 seconds (it means that every minute log file is flushed to disk)

Example:

set OPA0 log_flush_period=30

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log_flush_period

Parameter log_flush_period

Type Numeric

Value

<period-in-seconds>

Defines a period of flushing log to disk.

Default period is 60 seconds (it means that every minute log file is flushed to disk)

Example:

set OPA0 log_flush_period=30

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operator_console

break_on, stop_on

Parameter break_on, stop_on

Type Text string

Value

These two parameters are hard-coded to the following values and cannot be changed:

stop_on="F6"

break_on="Ctrl-P,F5"

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Versions Compared

Old Version 19

New Version 20

Key

rts

dsr

communication

line

address

vector

line

communication

rts

dsr

tx_q_max_depth

Types of serial line mapping

physical_serial_line

line

baud

break_on

stop_on

log

log_file_size

virtual_serial_line

host

port

application

break_on

stop_on

log

log_file_size

log_flush_period

log_flush_period

operator_console

break_on, stop_on