468 lines
19 KiB
Plaintext
468 lines
19 KiB
Plaintext
DATAPAC 3101 ITI PARAMETERS DESCRIPTION
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===================================================
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THE FOLLOWING WILL PROVIDE IN MORE DETAIL A DESCRIPTION OF ITI (84)
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PARAMETERS FOR DATAPAC 3101.
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DESCRIPTION
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-----------
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INTERNATIONAL PAD PARAMETERS
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1)ABILITY TO ESCAPE FROM DATA TRANSFER STATE*
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THE SETTING OF THIS PARAMETER ALLOWS THE USER TO INTERRUPT THE
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COMMUNICATION
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OF HIS OR HER APPLICAION (DATA TRANSFER MODE) AND INTERACT WITH THE
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PAD (COMMAND MODE). THE CHARACTER TO DO THIS IS CONTROL P. TO RETURN
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TO DATA TRANSFER MODE, PRESS THE CARRIAGE RETURN OR ENTER A BLANK COMMNAND LINE
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IF THE USER WANTS TO SEND A CONTROL P TO THE HOST, WITH THIS PARAMETER SET
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TO ONE,
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SIMPLY HIT CONTROL P TWICE AND THE SECOND CONTROL P WILL GO TO THE HOST AND
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THE USER WILL REMAIN IN DATA TRANSFER MODE. THIS ALSO APPLIES TO THE USER DATA
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FIELD IN THE CALL REQUEST COMMNAND LINE.
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PARAMETER NUMBER: 1
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POSSIBLE VALUES: 0 = ESCAPE NOT POSSIBLE
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1 = ESCAPE IS POSSIBLE
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* NOTE: ESCAPE FROM DATA TRANSFER MODE MAY ALSO BE POSSIBLE USING
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THE BREAK SIGNAL IF PARAMETER SEVEN IS SET TO EIGHT.
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2)ECHO*
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THIS PARAMETER INDICATES TO THE PAD WHETHER OR NOT THE TERMINAL
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INPUT DATA MUST BE ECHOED. THIS MAY BE REQUIRED IF THE USER"S TERMINAL
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CANNOT ECHO BACK WHAT IS BEING ENTERED.
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PARAMETER NUMBER: 2
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POSSIBLE VALUES: 0 = NO ECHO
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1 = ECHO
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* NOTE: ECHO WILL ALSO BE AFFECTED BY THE SETTING OF PARAMETER 20.
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3)SELECTION OF DATA FORWARDING SIGNAL
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THIS PARAMETER INDICATES TO THE PAD THE SET TO TERMINAL GENERATED
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CHARACTERS OR CONDITIONS THAT WILL CAUSE DATA TO BE FORWARDED TO THE
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DESTINATION. FOR EXAMPLE (CR) CAN BE USED AS A DATA FORWARDING SIGNAL.
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ON RECEIPT OF A (CR) FROM THE LOCAL DTE Y, THE PAD WILL FORWARD ALL
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CHARACTERS IN IT'S BUFFER TO THE REMOTE END INCLUDING THE (CR). IF
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P13 IS SET TO 6,7,22 OR 23, A (LF) WILL BE INCLUDED IN THE PACKET AND
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WILL DELIMIT IT. DATA IS ALSO FORWARDED WHEN THE BUFFER IS FULL WHETHER OR
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NOT A FORWARDING CHARACTER IS RECEIVED.
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PARAMETER NUMBER: 3
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POSSIBLE VALUES: 0 NO DATA FORWARDING SIGNAL
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2 = FORWARD ON CARRIAGE RETURN
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2 = CARRIAGE RETURN
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126 = ALL CHARACTERS IN COLUMNS 0 AND 1 OF ASCII
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TABLE AND THE CHARACTER DEL OF
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INTERNATIONAL ALPHABET #5 (SEE APPENDIX 1)
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4)SELECTION OF IDLE TIMER DELAY
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THIS PARAMETER IS USED TO DETERMINE THE IDLE TIMER LIMIT VALUE
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WHEN DATA FORWARDING IS BASED ON TIMEOUTS. TO OPTIMIZE PACKETIZING OF
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DATA, NO DATA FORWARDING SIGNAL NEED BE SPECIFIED. THE PAD WILL THEN
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PACKETIZE DATA BASED ON PACKET SIZE SPECIFIED (256 OR 128 CHARACTERS).
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THE IDLE TIMER IS USED TO SEND ANY PACKETS THAT ARE NOT FULLY FILLED. IF
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IDLE TIMER IS ACTIVATED AND THE HOST REQUIRES THE (CR) TO INPUT DATA, IT STILL
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MUST BE PROVIDED BEFORE THE DATA SENT IS ACCEPTED BY THE HOST. THE IDLE
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TIMER DOES NOT SEND ANY EMPTY PACKETS.
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PARAMETER NUMBER: 4
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POSSIBLE VALUES: 0 = NO DATA FORWARDING ON TIMEOUT IS REQUIRED
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1-255 = INDICATES THE VALUE OF THE DELAY IN TWENTIES
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OF A SECOND. (IE. A VALUE OF 250
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MAKES THE TIMER WAIT 10 SECONDS).
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* NOTE: WHEN EDITING IS ON (P15:1), THE IDLE TIMER IS INACTIVE.
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IF THIS IS THE ONLY DATA FORWARDING CONDITION, TURNING THE EDITING
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FUNCTION ON COULD CAUSE A USER TERMINAL TO HANG OR DATA NOT TO BE
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FORWARDED.
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5)AUXILIARY DEVICE CONTROL*
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THIS IS USED FOR FLOW CONTROL OF DATA COMING FROM EITHER A PC OR
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AUXILIARY DEVICE, EG., A PAPER TAPE MACHINE. WHEN SET TO 1 IT
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INDICATES TO THE PAD THAT THE DATA IS TO BE READ AN AUXILIARY I/O DEVICE.
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CONNECTED TO THE TERMINAL. THIS PARAMETER SET TO 2 INDICATES THAT THE
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DATA IS COMING FROM AN INTELLIGENT DEVICE, IE. A PC. AND THAT THE PAD MUST
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EXERT FLOW CONTROL DIFFERENTLY.
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PARAMETER NUMBER: 5
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POSSIBLE VALUES: 0 = NO USE OF X-ON/X-OFF
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1 = USE OF X-ON/X-OFF FOR AUXILIARY DEVICES
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2 = USE OF X-ON/X-OFF FOR INTELLIGENT TERMINALS
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* NOTE: A VALUE OF 2 IS RECOMMENDED FOR PC'S
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6)SUPPRESS NETWORK MESSAGES
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THIS PARAMETER INDICATES THE PAD WHETHER OR NOT NETWORK GENERATED
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MESSAGES ARE TO BE TRANSMITTED TO THE TERMINAL.
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PARAMETER NUMBER: 6
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POSSIBLE VALUES 0 = SUPPRESS MESSAGES
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1 = TRANSMIT MESSAGES
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5 = PAD PROMPT (*) FOLLOWS DATAPAC SERVICE SIGNALS
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7) PROCEDURE ON BREAK *
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THIS PARAMETER IS USED TO INDICATE HOW THE PAD SHOULD PROCESS A BREAK
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SIGNAL THAT IS RECEIVED FROM THE TERMINAL WHILE THE TERMINAL IS IN DATA
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TRANSFER STATE.
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PARAMETER NUMBER: 7
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POSSIBLE VALUES: 0 = NOTHING (REMAIN IN DATA TRANSFER MODE)
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1 = INTERRUPT (REMAIN IN DATA TRANSFER MODE)
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2 = RESET (REMAIN IN DATA TRANSFER MODE)
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4 = SEND AN "INDICATION OF BREAK" MESSAGE TO
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THE PACKET MODE DTE (REMAIN IN DATA TRANSFER
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MODE)
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8 = ESCAPE FROM DATA TRANSFER MODE, (IE, ENTER
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COMMAND MODE)
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16 = DISCARD OUTPUT TO TERMINAL ACTIVATE
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PARAMETER 8 (P8:1) (REMAIN IN DATA
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TRANSFER MODE)
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21 = A COMBINATION OF 1,4 AND 16
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* NOTE: THE BREAK SIGNAL IS IGNORED IF THE VIRTUAL CIRCUIT IS NOT
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ESTABLISHED.WHILE IN COMMAND STATE. THE BREAK SIGNAL WILL DELETE THE
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CURRENT LINE.
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1 THE VALID VALUES FOR P 7 ARE 0,1,2,8 AND 21.
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8)DISCARD OUTPUT
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THIS PARAMETER IS USED IN CONJUNCTION WITH PARAMETER 7. DEPENDING
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UPON THE BREAK PROCEDURE SELECTED, THIS PARAMETER MAY BE SET BY THE PAD
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WHEN THE TERMINAL USER REQUESTS THAT TERMINAL DATA BE DISCARDED. THIS
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PARAMETER MUST THEN BE RESET BY THE DESTINATION COMPUTER TO ALLOW NORMAL
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DELIVERY. THE PAD WILL DISCARD ALL PACKETS DESTINED FOR THE TERMINAL
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FROM THE TIME THE PAD SETS THIS PARAMETER (IE, IT RECEIVES A BREAK SIGNAL
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WHEN PARAMETER 7 IS SET TO 21) TO THE TIME THE PARAMETER IS RESET BY THE
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DESTINATION. IT CAN ONLY BE RESET BY THE DESTINATION.
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PARAMETER NUMBER: 8
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POSSIBLE VALUES: 0 = NORMAL DELIVERY OF OUTPUT TO TERMINAL
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1 = DISCARD OUTPUT TO TERMINAL
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9)PADDING AFTER CARRIAGE RETURN
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THIS PARAMETER IS USED TO SPECIFY THE NUMBER OF PADDING CHARACTERS TO
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BE INSERTED BY THE PAD FOLLOWING A CR R TRANSMITTED TO THE TERMINAL.
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PADDING ALLOWS TIME FOR THE CARRIAGE TO RETURN ON MECHANICAL PRINTING DEVICES
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PARAMETER NUMBER: 9
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POSSIBLE VALUES: 0 = 2 PADDING CHARACTERS WILL BE INSERTED AT 110 BPS
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AND 4 PADDING CHARACTERS WILL BE INSERTED AT
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HIGHER SPEEDS, IN COMMAND MODE ONLY.
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(NO PADDING IS DONE IN DATA TRANSFER MODE)
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1-255 = THE NUMBER OF PADDING CHARACTERS TO BE
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INSERTED IN BOTH DATA TRANSFER AND COMMAND
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MODE.
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10)LINE FOLDING
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THIS PARAMETER INDICATES THE MAXIMUM NUMBER OF PRINTABLE CHARACTERS
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THAT CAN BE DISPLAYED ON THE TERMINAL BEFORE THE PAD MUST SEND A
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FORMAT EFFECTOR (IE.,<CR><LF>). THIS PERMITS MORE DATA TO BE
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TRANSMITTED IN ONE PACKET WHILE STILL LETTING THE USER PRINT OUT
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MORE THAN ONE LINE, IE., PRINTING OUT FORMS.
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11)TRANSMISSION SPEED (READ ONLY)
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THIS PARAMETER IS SET BY THE PAD AS A RESULT OF TRANSMISSION SPEED
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DETECTION IF THE TERMINAL ACCESSES AN AUTOBAUD PORT. WHEN A PRIVATE
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PORT WITH FIXED SPEED IS USED, THIS PARAMETER IS SET BASED ON THE
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PRE-STORED INFORMATION SELECTED AT SUBSCRIPTION TIME.
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PARAMETER NUMBER: 11
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POSSIBLE VALUES: 0 = 110 BPS
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2 = 300 BPS
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3 = 1200 BPS
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4 = 2400 BPS
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12)FLOW CONTROL
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THIS PARAMETER ALLOWS THE TERMINAL USER TO SIGNAL THE PAD THAT THE
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TERMINAL CANNOT RECEIVE ANY MORE DATA, IE. TO FLOW CONTROL DATA COMING
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FROM THE NETWORK. WHEN IT IS SET TO 1, THE TERMINAL USER CAN REQUEST
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THAT THE PAD STOP SENDING DATA BY TRANSMITTING A "CONTROL S". THE
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PAD THEN SUSPENDS TRANSMISSION OF DATA UNTIL A "CONTROL Q" IS RECEIVED.
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PARAMETER NUMBER: 12
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POSSIBLE VALUES: 0 = NO USE OF X-ON/X-OFF FOR FLOW CONTROL
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1 = USE X-ON/X-OFF FOR FLOW CONTROL
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13)LINEFEED INSERTION (SIMILAR TO NATIONAL PARAMETER 126)
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THIS PARAMETER SPECIFIES WHEN THE PAD SHOULD INSERT LINEFEEDS <LF>
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UPON RECEIPT OF A CARRIAGE RETURN <CR> FROM THE TERMINAL, PAD OR THE
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DESTINATION HOST.
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PARAMETER NUMBER: 13
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POSSIBLE VALUES: 0 = INSERT NO <LF>
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1 = INSERT <LF> TO TERMINAL UPON RECEIPT OF A
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<CR> FROM HOST
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4 = INSERT <> TO TERMINAL AFTER A <CR> FROM
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TERMINAL OR ON PAD GENERATED <CR>
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5 = INSERT <LF> TO TERMINAL ON <CR> FROM PAD
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TERMINAL OR HOST.
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6 = INSERT <LF> TO TERMINAL ON <CR> FROM
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TERMINAL AND INSERT <LF> IN DATA HOST
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ON <CR> FROM TERMINAL
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7 = INSERT <LF> TO TERMINAL ON <CR> FROM
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PAD, TERMINAL OR HOST AND INSERT LF
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IN DATA TO HOST ON <CR> FROM TERMINAL
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16 = INSERT <LF> TO TERMINAL AFTER A PAD
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GENERATED <CR>
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17 = INSERT <LF> TO TERMINAL AFTER A PAD
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GENERATED <CR> OR A HOST GENERATED <CR>
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20 = INSERT <LF> TO TERMINAL ON <CR> FROM
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TERMINAL
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22 = INSERT <LF> TO TERMINAL ON <CR> FROM
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<CR> FROM TERMINAL
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23 = INSERT <LF> TO TERMINAL ON <CR> FROM
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TERMINAL OR HOST. INSERT <LF> IN DATA
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TO HOST ON <CR> FROM TERMINAL
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14)PADDING CHARACTERS AFTER LINEFEED
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TO ALLOW TIME FOR MECHANICAL PAPERFEED, THIS PARAMETER IS USED TO
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SPECIFY THE NUMBER OF PADDING CHARACTERS TO BE INSERTED BY THE PAD
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FOLLOWING <LF> TRANSMITTED TO THE TERMINAL IN DATA TRANSFER MODE ONLY.
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PARAMETER NUMBER: 14
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POSSIBLE VALUES:0-255 = NUMBER OF PADDING CHARACTERS (NUL)
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SENT TO THE TERMINAL AFTER TRANSMISSION
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OA A <LF> TO THE TERMINAL.
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15)CONTROL OF EDITING FUNCTIONS
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THIS PARAMETER SPECIFIES WHETHER OR NOT EDITING IS ALLOWED IN DATA
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TRANSFER MODE. IT IS ALWAYS AVAILABLE IN COMMAND MODE. THIS CONTROLS
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PARAMETERS 16, 17 AND 18.
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PARAMETER NUMBER: 15
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POSSIBLE VALUES: 0 = EDITING ONLY IN COMMAND MODE
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1 = EDITING IN COMMAND AND DATA TRANSFER MODE
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* NOTE: SETTING PARAMETER 15 TO 1 WILL CAUSE THE OPERATION OF THE
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IDLE TIMER (PARAMETER 4) TO BECOME DISABLED.
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16)CHARACTER DELETION (SIMILAR TO NATIONAL PARAMETE 118)
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THIS PARAMETER SPECIFIES THE ASCII CHARACTER TO BE USED AS A
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"CHARACTER DELETE" CHARACTER FOR LOCAL EDETING BY THE PAD. THE
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DEFAULT VALUE IS SET TO 127 (THE DELETE OR DEL KEY.
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PARAMETER NUMBER: 16
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POSSIBLE VALUES: 0 = TURN OFF CHARACTER EDETING (COMMNAD & DATA
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TRANSFER MODE)
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1-127 = CHARACTER DELETE CHARACTER (APPENDIX K)
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17)LINE DELETION (SIMILAR TO NATIONAL PARAMETER 119)
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THIS PARAMETER SPECIFIES THE ASCII CHARACTER TO BE USED AS A
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"LINE DELETE" CHARACTER FOR LOCAL EDITING BY THE PAD. THE DEFAULT
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VALUE IS SET TO 24 (CONTROL X). ON SOME OLDER TERMINALS THE CONTROL
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X KEY WILL CLEAR THE SCREEN AS WELL AS DELETE THE LINE.
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PARAMETER NUMBER: 17
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POSSIBLE VALUES 0 = NO KEY WILL DELETE A CHARACTER
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1-127 = ASCII CODE FOR THE "LINE DELETE" CHARACTER
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18)LINE DISPLAY (SIMULAR TO NATIONAL PARAMETER 120)
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THIS PARAMETER SPECIFIES THE ASCII CHARACTER TO BE USED AS A
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"LINE DISPLAY " CHARACTER FOR LOCAL EDITING BY THE PAD. THE DEFAULT
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VALUE IS SET TO 18 (CONTROL R).,
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PARAMETER NUMBER: 18
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POSSIBLE VALUES: 0 = NO KEY WILL DELETE A CHARACTER
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1-127 = ASCII CODE FOR THE "LINE DISPLAY" CHARACTER
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19)EDITING SERVICE SIGNALS
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THIS PARAMETER DEFINES THE FORMAT OF THE SERVICE SIGNAL SENT TO TERMINAL
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UPON EXECUTION OF THE EDITING FUNCTIONS (P16 OR P17)
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PARAMETER NUMBER: 19
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POSSIBLE VALUES: 0 = NO SERVICE SIGNAL ON EDITING
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1 = BACKSLASH IS DISPLAYED FOR EACH CHARACTER
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DELETED, "***" IS DISPLAYED FOR EACH LINE
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DELETED
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2 = <BS><SP><BS> IS DISPLAYED FOR EACH
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CHARACTER DELETED; <BS><SP><BS> IS
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REPEATED FOR EACH CHARACTER ON THE LINE
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DELETED
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PARAMETER 19 8**, 32-126 = THE SPECIFIED CHARACTER IS DISPLAYED
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FOR EACH CHARACTER DELETED; "***" IS
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DISPLAYED FOR EACH LINE DELETED.
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*NOTE: VALUE 1 IS RECOMMENDED FOR PRINTING TERMINALS AND VALUE 2
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WHEN PAD ECHO IS OFF (P2=0) AND THE CHARACTER DELETE" CHARACTER
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IS DEFINED AS <BS> (P16=8), THE PAD DOES NOT SEND AND EDITING
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SERVICE SIGNAL TO THE TERMINAL UPON EXECUTION TO THE CHARACTER
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DELETE EDITING FUNCTION; HOWEVER, THE CHARACTER WILL STILL BE
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DELETED FROM THE PAD BUFFER.
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FOR VIDEO DISPLAY TERMINALS.
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PRODUCE A <BS>, BUT THE CHARACTER WILL STILL BE DELETED FROM THE PAD.
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20)ECHO MASK*
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THIS PARAMETER SPECIFIES A SET OF CHARACTERS NOT TO BE ECHOED TO THE
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TERMINAL.
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PARAMETER NUMBER: 20
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POSSIBLE VALUES: 0 = ALL CHARACTERS ECHOED (EXCEPT X-ON/X-OFF
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WHICH DEPEND ON THE SETTING OF P5, P12
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AND P22)
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1 = NO ECHO OF <CR>
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2 = NO ECHO OF <LF>
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4 = NO ECHOE OF <VT>, <HT>, <FF>
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8 = NO ECHO OF <BEL>, <BS>
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16 = NO ECHO OF <ESC>, <ENQ>
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32 = NO ECHO OF <ACK>, <NAK>, <STX>, <SOH>,
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<EDT><ETB>, <ETX>
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64 = NO ECHOING OF EDITING CHARACTERS, AS
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DESIGNATED BY PARAMETER 16,17 AND 18
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128 = NO ECHOING OF ALL OTHER CHARACTERS IN
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COLUMN 0 AND 1 OF ASCII TABLE IN
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APPENDIX I PLUS <DEL>
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* NOTE: THIS PARAMETER IS ONLY ACTIVE WHEN ECHO IS ON (P2 = 1).
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21)PARITY DETECTED OR CHECKED (SIMILAR TO NATIONAL PARAMETER 123)
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THIS PARAMETER SPECIFIES WHETHER OR NOT THE PAD SHOULD DETECT,
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CHECK AND GENERATE PARITY. THIS PARAMETER IS SET TO 0 WHEN THE USER
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WISHES TO TRANSMIT 8-BIT DATA.
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PARAMETER NUMBER: 21
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POSSIBLE VALUES: 0 = NO DETECTED OR CHECKED
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3 = PARITY CHECKED AND DETECTED
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22)PAGE WAIT
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THIS PARAMETER CONTROLS THE ABILITY TO SET A TERMINAL PAGE SIZE
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WHICH, WHEN REACHED, CAUSES THE PAD TO STOP ALL FURTHER OUTPUT TO THE
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TERMINAL.
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PARAMETER NUMBER: 22
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POSSIBLE VALUES: 0 = NO PAGE WAIT
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1-255 = PAGE WAIT SIZE
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THE PAD WILL RESUME NORMAL TRANSMISSION WHEN ANY OF THE FOLLOWING OCCURS:
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- ON RECEIPT OF THE PAGE WAIT CANCELLATION CHARACTER (X-ON); OR
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- ON RESETTING PARAMETER 22 TO ZERO.
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NATIONAL PARAMETERS
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===================
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THE FOLLOWING PARAMETERS ARE SPECIFIC TO THE DATAPAC INTERACTIVE
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TERMINAL INTERFACE (DATAPAC 3101 SERVICE)
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P118 CHARACTER DELETION
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P119 LINE DELETION
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P120 LINE DISPLAY
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P121,122 ADDITIONAL DATA FORWARDING SIGNALS
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THESE PARAMETERS 121 AND 122 ALLOW THE DEFINITION OF ONE OR
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TWO ADDITIONAL DATA FORWARDING SIGNALS. THESE SIGNALS ARE IN ADDITION
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TO ANY THAT ARE SPECIFIED BY PARAMETER 3 AND 4.
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PARAMETER NUMBER: 121,122
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POSSIBLE VALUES: 0 = NONE
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1-127= ASCII CODE OF ADDITIONAL DATA FORWARDING
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SIGNAL.
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P123 PARITY TREATMENT
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THIS PARAMETER SPECIFIES WHETHER OR NOT THE PAD SHOULD DETECT AND
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CHECK PARITY AND PERFORMS THE SAME FUNCTION AS INTERNATIONAL PARAMETER
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21.
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PARAMETER NUMBER: 123
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POSSIBLE VALUES: 0 = NO DETECTED OR CHECKED
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1 = PARITY CHECKED AND DETECTED
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6)OUTPUT PENDING TIMER
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THIS PARAMETER SPECIFIES THE LENGTH OF TIME, IF ANY, THAT TERMINAL
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OUTPUT WILL BE BLOCKED BY TERMINAL INPUT.
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PARAMETER NUMBER: 125
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POSSIBLE VALUES: 0 = OUTPUT
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1-255 = VALUE OF DELAY IN SECONDS
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7)LINEFEED INSERTION
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PARAMETER NUMBER: 126 SEE INTERNATONAL PARAMETER 13.
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GENERAL NOTES ABOUT PARAMETERS
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-------------------------------
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THE SETTING OF ANY OF PARAMETERS 16(118), 17(119), OR 18(120) TO
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A NON-ZERO VALUE WILL ALSO SET PARAMETER 15 TO 1 WHEN PARAMETER 4 IS ZERO.
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IN THE 1984 SOFTWARE LEVEL, SETTING BOTH EDITING (P15) IS OFF. THIS
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OPERATION IS ACCORDING TO CCITT 1984 STANDARDS.
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IF THE CHARACTER CHOSEN FOR A CERTAIN PARAMETER HAS ALREADY BEEN
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SELECTED TO BE USED WITH ANOTHER PARAMETER, THEN THE FUNCTION WITH THE
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HIGHEST PRIORITY IS SELECTED UPON RECEIPT OF THE CHARACTER. THIS PRIORITY
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SCHEME IS AS FOLLOWS:
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1) ESCAPE FROM COMMAND STATE
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2) FLOW CONTROL
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3) LINE DISPLAY
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4) LINE DELETE
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5) CHARACTER DELETE
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6) PACKET FORWARDING
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ALL OF THE ABOVE PARAMETERS ARE CHANGEABLE BY THE USER. HOWEVER, IT
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SHOULD BE NOTED THAT THE HOST COMPUTER CAN ALSO CHANGE THESE PARAMETERS.
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Another file downloaded from: NIRVANAnet(tm)
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& the Temple of the Screaming Electron Jeff Hunter 510-935-5845
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Rat Head Ratsnatcher 510-524-3649
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Burn This Flag Zardoz 408-363-9766
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realitycheck Poindexter Fortran 415-567-7043
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Lies Unlimited Mick Freen 415-583-4102
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Specializing in conversations, obscure information, high explosives,
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arcane knowledge, political extremism, diversive sexuality,
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insane speculation, and wild rumours. ALL-TEXT BBS SYSTEMS.
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Full access for first-time callers. We don't want to know who you are,
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where you live, or what your phone number is. We are not Big Brother.
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"Raw Data for Raw Nerves"
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