The serial asynchronous ports (PAD)

[18:42:32] ABILIS_CPX: D P PO:21

PO:21  ------------------------------------------------------------------------
PAD    01:001 02:001 03:002 04:000 05:001 06:005 07:000 08:000 09:000 10:000
       11:014 12:001 13:004 14:000 15:001 16:008 17:024 18:002 19:002 20:000
       21:000 22:000
       LOG:NO     TYPE:USER  MCAU:NO    ps:128   FS:128      vc:BSVC  AC:NO
       PI:CPX/021:           SP:9600    LE:8     PT:NONE     ST:1     HF:NO
       CD:YES     FDCD:500   FCTS:500   CO:NO    CODLY:0     DTRDN:0
       DW:100     CLRX29:NO  CQ:YES     FC:
       X29:

[18:42:32] ABILIS_CPX: PAR PO:21

PO:21  ------------------------------------------------------------------------
PAD    01:001 02:001 03:002 04:000 05:001 06:005 07:000 08:000 09:000 10:000
       11:014 12:001 13:004 14:000 15:001 16:008 17:024 18:002 19:002 20:000
       21:000 22:000

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Refer to CCITT X3-X28-X29 recommendations.

Usually this parameter makes possible to activate/deactivate logging functionalities of meaningful events of the port as well as the detection and signalling of alarms in case of critical events.

The following table shows the available options and the related functionalities usable by the parameter:

Option	Meaning
D	Recording of the driver state changes and/or the meaningful events in Debug Log
S	Recording of the driver state changes and/or the meaningful events in the System Log
A	Periodic detection of possible alarms. The detected alarms can be displayed the command ALARM VIEW or by the analogous command available on the UTILITY of the LCD display on the front panel
L	On alarm detection, acoustic signal generation plus a message on the LCD display. This function depends on activation of alarms detection by the "A" option
T	Generation by the Agent SNMP of Abilis CPX of SNMP traps corresponding to any change of the driver state and/or occurring of meaningful events

Beside the already described options the following values are also allowed:

Option	Meaning
NO	It means that all the logging functionalities, alarms detection and generation, above mentioned, are disabled.
ALL	It means that all the logging functionalities, alarms detection and generation, above mentioned, are enabled.
+E	This option added to one or more of the previous ones, extends its (their) set of meaningful events. The value "ALL+E" activates all the options and extends the set of meaningful events. The value "NO+E" is meaningless so it is ignored.

Options can be combined together.

Some examples:

• setting "LOG:DS+E", activates the extended logging functions for Events Log and System Log
• setting "LOG:STA", activates the extended logging functions for System Log, SNMP traps generation and periodic detection of alarm states;

By using the characters "+" and "-" as prefix of one or more options is possible to add or delete one or more functionalities without setting from the scratch the value of the parameters.

Some examples:

• Suppose the current value of the parameter is "LOG:DSTA", by setting "LOG:-A", the periodic detection of eventual alarm states is removed, leaving unchanged all the remaining options; in such way the final value of the parameter will be "LOG:DST";
• Suppose the current value of the parameter is "LOG:ST", by setting "LOG:+DA", the logging function of the events on the Events Log and the periodic alarm detection are added to the already activated options; in such way the final value of the parameter will be "LOG:DSTA".

The changes made on this parameter are immediately activated, without the need of initialization commands.

This parameter sets how the port behaves if data compression is activated.

The port connected to the X.25 network is defined NETWORK port; the one connected to the user device USER port.

The NETWORK port sends compressed data and expands the received ones; the USER port compresses the received data and sends the expanded ones.

The PAD can be only a USER port.

If MCAU is set to NO, Abilis CPX transports, without any changes, the cause and diagnostic code of the CLEAR packets; it also uses the F0 cause code and the suitable diagnostic one for all the CLEAR packets internally generated.

If MCAU is set to YES, Abilis CPX forces the cause code of the CLEAR packet sent to the value 00 (DTE originated), either for the external CLEAR and the internal ones.

The changes made on this parameter are immediately activated, without the need of initialisation commands.

It sets the maximum packet size.

Number of character to "accumulate" in a buffer before transmission.

It selects the connection type.

BSVC= bidirectional switched, PVC = bidirectional permanent.

It selects the auto-connection mode.

Value	Meaning
NO	No auto- connection procedure is applied
DCD	This auto-connection procedure automatically generates a called whenever the driver reaches the "UP" state by leaving the "DOWN" one
DATA	This auto-connection procedure automatically generates a called when the first character is received

it is possible to insert any alphanumeric character without distinction between low and high case.

Space are not allowed, in spite of them the character "_" (under score) may be used.

To delete the port identifier this parameter has to be left without value:

S P PO:xxx PI:

where "xxx" stands for the PAD port identifier.

It selects the PAD port speed.

It selects the character length (bits).

It select the parity type.

Value	Meaning
NONE	No parity
EVEN	Even parity
ODD	Odd parity
MARK	Parity bit is always set to 1
SPACE	Parity bit is always set to 0

It sets the number of stop bits.

It sets the type of hardware flow control.

Value	Meaning
NO	The signal RTS is always "UP" and the CTS one is ignored
RTS	The signal RTS is used for controlling the flow of data received by the PAD and the CTS one is ignored
CTS	The signal CTS is used for controlling the flow of data received by the DTE and the RTS one is always "UP"
BOTH	The signal RTS is used for controlling the flow of data received by the PAD, while the CTS one to control the flow of data received by the DTE.

It selects the control type of the signal DCD.

It sets the time interval needed to detect the state of the DCD signal. It is checked every CPU tick (55 milliseconds c.a.) and, in order to avoid detection of useless fluctuations, it is considered valid only if it is constant during the time interval defined in the parameter.

It sets the time interval needed to detect the state of the CTS signal. It is checked every CPU tick (55 milliseconds c.a.) and, in order to avoid detection of useless fluctuations, it is considered valid only if it is constant during the time interval defined in this parameter.

It sets the "connect indication" mode.

Value	Meaning
NO	"Connect indication" is not handled. DTR is always "UP" and the RTS signal is handled conventionally.
YES	"Connect indication" is handled basing on the call type: incoming call: the PAD activates the DTR signal and waits, for the time interval specified in the parameter CODLY:, the signal DCD to be "UP". If the signal DCD goes "UP" within the specified time interval, the session will be "CONNECTED", otherwise the call will be refused and the session will go back to the "READY" state outgoing calls: when the session reaches the "CONNECTED" state, the signal DTR is set to "UP", while the signal DCD behaves according to the "CD:" parameter value
MODEM	"MODEM disconnection" procedure is applied. Connection is teared down if no session is activated within a given time interval. In this case the signal DTR is kept "DOWN" as long as the value of the parameter DRTDN:

Waiting interval of the signal DCD "UP" in case of CO: "YES".

If CO: is set to "MODEM", the signal DTR will be kept "DOWN" for the time interval specified in this parameter.

It sets the time interval to be waited before sending a CLEAR request when the DCD signal is "DOWN"

It enables sending of CLR_X29, instead of CLR_REQ, when the DCD signal is "DOWN"

It checks whether the Q-BIT is set to 1.

If the parameter is set to "NO" the PAD will discard all the packets whose Q-BIT is 1, otherwise the PAD will manage them, as, for example, the X29 strings.

String of additional characters.

To delete the string, this parameter has to be let without value:

S P PO:xxx FC:

where "xxx" stands for the PAD port identifier.

It is strictly related with the settings of the CCITT X3-X28-X29 recommendation for the parameter X3 03.

It selects the X29 string to send when the session reaches the "CONNECTED" state.

To delete the string, this parameter has to be let without value: S P PO:xxx X29:, where "xxx" stands for the PAD port identifier.

[18:42:32] ABILIS_CPX: D S PO:21

PO:21  ------------------------------------------------------------------------
PAD    STATE:DOWN                          L1:DOWN
       DTR:UP            DCD:DOWN          RTS:DOWN          CTS:DOWN
       RXOVR:0           LOST-I:0          PARITY:0          FRAMING:0
       FIFO:UNKNOWN      TXSIZE:1          RXSIZE:1
       ------------------------------------------------------------------------
       UART:16450        TXTRIGGER:0       RXTRIGGER:0
       -----------|---INPUT---|--OUTPUT---|-----------|---INPUT---|--OUTPUT---|
       SEG        |0          |0          |CHAR       |0          |0          |
       CALL       |0          |0          |
       ------------------------------------------------------------------------

[18:42:32] ABILIS_CPX: D SE PO:21

PO:21  ------------------------------------------------------------------------
PAD    --- Cleared 000:03:13:30 ago, on 12/05/2000 at 12:21:27 ----------------
       RXOVR:0           LOST-I:0          PARITY:0          FRAMING:0
       FIFO:UNKNOWN      TXSIZE:1          RXSIZE:1
       ------------------------------------------------------------------------
       UART:16450        TXTRIGGER:0       RXTRIGGER:0
       -----------|---INPUT---|--OUTPUT---|-----------|---INPUT---|--OUTPUT---|
       SEG        |0          |0          |CHAR       |0          |0          |
       CALL       |0          |0          |
       ------------------------------------------------------------------------

It shows the current state of the PAD port driver.

Driver	States	Meaning	Values shown in:
			System Log	Event Log	Display LCD
PAD	HALTED	Port is not working
	CLOSED	Starting state of the PAD port
	DOWN	Prot is not active
	CALLED	The port made a call
	READY	Port is active
	CALLING	The port received a call
	CONNECTED-DT	Session is connected and data are exchanged
	CONNECTED-CM	Session is connected and commands are exchanged
	CLEARING	Session clearing
	ERR	Software error. Contact Abilis assistance.

It shows the current state of the 1st asynchronous level of the PAD port.

Driver	States	Meaning	Values shown in:
			System Log	Events Log	Display LCD
Level 1 asynchronous	DOWN	Level 1 asynchronous is not active	dn
	UP	Level 1 asynchronous is active	UP
	HALTED	Level 1 asynchronous is halted	HT
	ERR	Software error. Contact the Abilis assistance.	NA

It reports the current state of the signal DTR.

Driver	States	Meaning	Values shown in:
			System Log	Events Log	LCD Display
SYNC (Signal DTR)	DOWN	The signal DTR is not active	0	dn	0
	UP	The signal DTR is active	1	UP	1
	N/A	The signal state is not available	2	NA	2

It reports the current state of the signal DCD.

Driver	States	Meaning	Values shown in:
			System Log	Events Log	LCD Display
SYNC (Signal DCD)	DOWN	The signal DCD is not active	0	dn	0
	UP	The signal DCD is active	1	UP	1
	N/A	The signal state is not available	2	NA	2

It reports the current state of the signal RTS.

Driver	States	Meaning	Values shown in:
			System Log	Events Log	LCD Display
SYNC (Signal RTS)	DOWN	The signal RTS is not active
	UP	The signal RTS is active
	N/A	The signal state is not available

It reports the current state of the signal CTS.

Driver	States	Meaning	Values shown in:
			System Log	Events Log	LCD Display
SYNC (Signal CTS)	DOWN	The signal CTS is not active
	UP	The signal CTS is active
	N/A	The signal state is not available

The counter RX-OVR (INPUT) is incremented every time the communication board reports an "overrun" for the received data.

High values, but especially growing, of this counter could mean a hardware problem of the Abilis CPX or most probably that the communication speed is too high.

The counter NOBUF is incremented every time the condition "NO BUFFER" occurs.

The counter PARITY is incremented every time a "parity error" is detected in the incoming data.

The counter FRAMING is incremented every time a "framing error" is detected in the incoming data.

It shows the current state of the Uart FIFO.

The parameter TXSIZE shows the size of the transmitting FIFO.

The parameter RXSIZE shows the size of the Uart receiving FIFO.

It shows the UART type installed.

The parameter TXTRIGGER shows the trigger transmitting level of the UART.

The parameter RXTRIGGER shows the trigger receiving level of the UART.

The counter SEG (INPUT) is incremented every time data are received by the PAD port. The counter SEG (OUTPUT) is incremented every time data are sent.

Segments are obtained dividing by 64 the number of bytes.

The counter CHAR (INPUT) is incremented every time data are received by the PAD port. The counter CHAR (OUTPUT) is incremented every time data are sent.

The counter CALL (INPUT) is incremented every time the PAD port received a call. The counter CALL (OUTPUT) is incremented every time a call is made.

This variable gives the number of the CPX port which the SNMP trap refers to.

This variable shows the port type (in this case PAD) which the trap refers to, and the description that the user could associate to it.

This variable shows current state of the PAD port driver which the trap refers to. In the following table is shown the relation among the state values shown in the SNMP variable and the ones shown by the command D S.

Value of the SNMP variable	Corresponding state of the PAD port
halted(0)	HALTED
closed(1)	CLOSED
down(2)	DOWN
called(3)	CALLED
ready(4)	READY
calling(5)	CALLING
connected-DT(6)	CONNECTED-DT
connected-CM(7)	CONNECTED-CM
clearing(8)	CLEARING

This variable shows current state of the Level 1 asynchronous of the PAD port which the trap refers to. In the following table is shown the relation among the state values shown in the SNMP variable and the ones shown by the command D S.

Value of the SNMP variable	Correspondent state of the PAD port Level 1
down(0)	DOWN
up(1)	UP
halted(2)	HALTED

This variable shows current state of the signal DCD of the PAD port which the trap refers to. In the following table is shown the relation among the state values shown in the SNMP variable and the ones shown by the command D S.

Value of the SNMP variable	Correspondent state of the signal DCD
down(0)	DOWN
up(1)	UP
not-available(2)	N/A

This variable shows current state of the signal DTR of the PAD port which the trap refers to. In the following table is shown the relation among the state values shown in the SNMP variable and the ones shown by the command D S.

Value of the SNMP variable	Correspondent state of the signal DTR
down(0)	DOWN
up(1)	UP
not-available(2)	N/A

This variable stores the elapsed time (in cents of second) from the system start to the SNMP trap event occurrence.

This value is usually shown in SNMP consoles as days:hours:minutes:seconds.

This command is not implemented in the actual version of the Abilis CPX. If it is executed, the following message will be shown: "BREAK COMMAND NOT IMPLEMENTED YET (use Break signal)".

If session is connected and exchanging commands, this command will close the current connection, causing a Clear Request packet to be sent.

If session is not in the state "CONNECTED-CM" the following message will be shown "CLR ERR - NOT LINKED".

It shows the actual value of the CCITT parameters of the PAD port, only if the session state is READY or CONNECTED-CM.

If not parameter is added, the command will shown all the parameters by the format "parameter:value", otherwise only the requested parameter will be displayed.

If session is connected and exchanging commands, this command send a Reset Indication packet.

If session is connected and exchanging commands, this command will display the current values of the CCITT parameters of the remote PAD port.

If not parameter is added, the command will shown all the parameters by the format "parameter:value", otherwise only the requested parameter will be displayed.

If session is not in the state "CONNECTED-CM" the following message will be shown "CLR ERR - NOT LINKED".

If session is connected and exchanging commands, this command will set the current values of the CCITT parameters of the remote PAD port, by the format "parameter:value".

If session is connected and exchanging commands, this command will set the current values of the CCITT parameters of the remote PAD port, by the format "parameter:value", and then display them.

This command set the current values of the CCITT parameters of the PAD port, by the format "parameter:value".

This command set the current values of the CCITT parameters of the PAD port, by the format "parameter:value", and then shows them.