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General Description
Configuration of CHARON-VAX serial lines is performed in 3 steps:
Loading virtual serial lines controller, for example:
load DHV11/DHV11 TXA
In this example, an instance of a "DHV11" serial line controller is loaded and named "TXA"
Note that VAX console adapters ("UART", "QUART") do not need to be loaded; they are preloaded.
Mapping an object type to host resources: For example:
load physical_serial_line TTA1
set OPA0 line="/dev/ttyS1"In this example the object "physical_serial_line" is loaded, named "TTA1", and mapped to the "/dev/ttyS1" host physical serial port.
Connect the loaded virtual line controller and the mapped object:
set TXA line[5]=TTA1
In this example, the 6th line of the DHV11 controller "TXA" loaded at step 1 is connected to the mapping object "TTA1" loaded at the step 2.
Console
CHARON-VAX offers a one- or four-port serial console depending on the specified VAX model. The one line serial line controller is identified in CHARON-VAX with the name UART. The four serial lines controller is identified in CHARON-VAX with the name QUART.
UART is used in Qbus systems only (e.g. the MicroVAX/VAXserver 3600/3900).
QUART is used in SCSI (e.g. MicroVAX 3100 model 96/98, VAXstation 4000 model 90) and SCSI/Qbus systems (e.g. VAX4000 model 106/108). The last QUART line (line[3]
) is the console port (known in VAX/VMS as OPA0).
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.
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physical_serial_line
Parameter | Type | Description | ||
---|---|---|---|---|
line | Text string | A defined TTY port on host system:
| ||
baud | Numeric | 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:
| ||
break_on | Text string | 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: "Crtl-P", "Break" or "none" ("none" disables triggering HALT condition).Example:
The default value is "Break" for line 3 of QUART and "none" for other lines. | ||
stop_on | Text string | Specifies what byte sequences received over the physical serial line will trigger a STOP condition. The STOP condition causes CHARON-VAX to exit.Specify the value as the following: “F6” or “none” ("none" disables triggering STOP condition).Example:
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 | ||
log | Text string | 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:
|
load physical_serial_line OPA0 |
virtual_serial_line
Parameter | Type | Description | ||
---|---|---|---|---|
host | Text string | 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:
| ||
port | Numeric | TCP/IP port number for the virtual serial line. A virtual serial line always listens on this port for incoming connection requests. | ||
break_on | Text string | 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: "Crtl-P", "Break" or "none" to disable triggering HALT condition.Example:
The default value is "Break" for line 3 of QUART and "none" for other lines. | ||
stop_on | Text string | Specifies what byte sequences received over the virtual serial line will trigger a STOP condition. The STOP condition causes CHARON-VAX to exit.Specify the value as the following: “F6” or “none” ("none" disables triggering STOP condition).Example:
The default value is "none".Setting "F6" triggers the STOP condition upon receipt of the " <ESC>[17~ " sequence. | ||
log | Text string | 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.Examples:
|
load virtual_serial_line OPA0 |
- Use the combination of "port" and "host" parameters as follows to connect a 3rd party terminal emulator or similar program.
load virtual_serial_line/chserial TTA0 host="192.168.1.1" port=10000
In this example CHARON-VAX connects to port 10000 of a host with TCP/IP address "192.168.1.1" and at the same time it accepts connections on local port 10000. - It is possible to specify a port on a remote host (note that CHARON always acts as a server). The syntax is:
load virtual_serial_line/chserial TTA0 host="192.168.1.1:20000" port=10000
In this example CHARON-VAX accepts connection on local port 10000 and connects to remote port 20000 of a host with TCP/IP address "192.168.1.1"
load virtual_serial_line/chserial TXA0 port=5500 host="B" |
load virtual_serial_line/chserial TXA0 port=5500 host="A" |
operator_console
Parameter | Type | Description | |
---|---|---|---|
break_on, stop_on | Text string | These two parameters are hardcoded to the following values and cannot be changed:
|
Example:
load operator_console OPA0 |
"ttyY" notation specifics
Note that the "ttyY
" notation can have different forms depending on the nature of the device used:- Linux virtual tty (switchable by alt+F1-atl+F12 on a text console) – are represented as "/dev/ttyN" where N is from 0 to 11. Those tty devices must be free from the Linux "getty/mgetty" and similar programs (specified in "/etc/inittab")
- Onboard serial lines are represented as "/dev/ttySN" where N is a number. For example "/dev/ttyS1"
- Proprietary (depending on a driver) devices are represented as "/dev/ttyXXX" where XXX is a complex letter/number notation. For example "/dev/ttyR01" is the first port of a MOXA card and "/dev/ttyaa" stands for the first port of a DIGI card.
Linking serial controller port to host connection
The final step of CHARON-VAX serial line configuration is the association of each loaded serial port with a CHARON-VAX host connection instance as follows:set <serial controller instance name> line[<line number>]=<serial line instance name> |
Example:
set quart line[0]=TTA0 |
set TXA line[5]=TTA1 |
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