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-
- Telenet ITI Parameters
- ----------------------
-
-
- Summary of Telenet ITI Parameters
- ---------------------------------
-
- Para- Para-
- meter Description (Default Value) meter Description (Default Value)
- ----- --------------------------- ----- ---------------------------
- 1 Line feed Insertion (0) 31+ Interrupt Character (0)
- 2 Network Message Display (0) 32 Automatic Hang-up (0)
- 3 Echo (1) 33+ Flush Output (0)
- 4 Echo Mask (163) 34 Transmit on Timers (1)
- 5 Transmit Mask (2) 35 Idle Timer (80)
- 6* Buffer Size (0) 36 Interval Timer (80)
- 7* Command Mask (127) 37 Network Usage Display (0)
- 8* Command Mask (3) 38 Carriage Return PAD (Variable)
- 9 Carriage Return PAD (Fixed) 39 Padding Options (1)
- 10 Linefeed Padding 40 Inset on Break (0)
-
- 11 Tab Padding 41 PAD-Terminal Flow Control (0)
- 12 Line Width 42 PAD-Terminal XON Character (17)
- 13 Page Length (0) 43 PAD-Terminal XOFF Character (19)
- 14 Line Folding (1) 44* Generat Break (INV)
- 15 Page Wait (0) 45* APP on Break (0)
- 16 Interrupt on Break (0) 46 Input Unlock Option (0)
- 17 Break Code (0) 47 Input Unlock Timer (0)
- 18 NVT Options (0) 48 Input Unlock Character (0)
- 19 Initial Keyboard State (0) 49 Output Lock Option (2)
- 20 Half/Full Duplex 50 Output Lock Timer (10)
-
- 21 Real Character Code 51 Output Lock Option (0)
- 22 Printer Style 53* Break Options (0)
- 23 Terminal Type 54 Terminal-PAD Flow Control (0)
- 24 Permanent Terminal (0) 55 Terminal-PAD XON Character (17)
- 25 Manual or Auto Connect (0) 56 Terminal-PAD XOFF Character (19)
- 26 Rate 57 Connection Mode (2)
- 27 Delete Character 58 Escape to Command Mode (1)
- 28 Cancel Character (18) 59* Flush Output on Break (0)
- 29 Display Character (18) 63 Eight-bit Transparency (1)
- 30+ Abort Output Character (0) 64+ Early ACK (0)
-
-
- Note: All Telenet Paramaters must follow the National Option Marker
- (Paramter 0, value '21' Hex) in PAD Messages.
-
- Parameters marked with "*" should not be used.
-
- Parameters marked with "+" should be used with caution.
-
-
-
-
-
-
- Telenet ITI Parameters Arranged by Functional Category
- ------------------------------------------------------
-
- Para- Para-
- meter Description (Default Value) meter Description (Default Value)
- ----- --------------------------- ----- ---------------------------
-
- (CONNECTION MODE) (BREAK HANDLING)
- 57 Connection Mode (2) 16 Interrupt on Break (0)
- 58 Escape to Command Mode (1) 40 Inset on Break (0)
- 17 Break Code (0)
- (CALL ESTABLISHMENT & CLEARING) 44* Generat Break (INV)
- 25 Manual or Auto Connect (0) 45* APP on Break (0)
- 32 Automatic Hang-up (0) 59* Flush Output on Break (0)
- 53* Break OPtions (0)
- (COMMAND PREOTECTION)
- 7* Command Mask (127) (VIRTUAL TERMINAL DEVICE)
- 8* Command Mask (3) 39 Padding Options (1)
- 9 Carriage Return PAD (Fixed)
- (DEVICE DEPENDENT) 38 Carriage Return PAD (Variable)
- 24 Permanent Terminal (0) 10 Linefeed Padding
- 23 Terminal Type 11 Tab Padding
- 20 Half/Full Duplex 12 Line Width
- 21 Real Character Code 13 Page Length (0)
- 22 Printer Style 14 Line Folding (1)
- 26 Rate 15 Page Wait (9)
- 63 Eight-bit Transparency (1) 1 Linefeed Insertions (0)
-
- (TERMINAL DISPLAY) (VIRTUAL TERMINAL PROCESS)
- 3 Echo (1) 18 NVT Options (0)
- 4 Echo Mask (163) 27 Delete Character (127)
- 2 Network Message Display (0) 28 Cancel Character (24)
- 37 Network Usage Display (0) 29 Display Character (18)
- 31 Interrupt Character (0)
- (PACKET ASSEMBLY/DISASSEMBLY) 30 Abort Output Character (0)
- 6* Buffer Size (0) 33 Flush Output (0)
- 5 Transmit Mask (2)
- 34 Transmit on Timers (1) (2741 Terminal Support)
- 35 Idle Timer (80) 19 Initial Keyboard State (0)
- 36 Interval Timer (0) 46 Input Unlock Option (0)
- 64 Early ACK (0) 47 Input Unlock Timer (0)
- 48 Input Unlock Character (0)
- (FLOW CONTROL) 49 Output Lock Option (2)
- 41 PAD-Terminal Flow Control (0) 50 Output Lock Timer (10)
- 42 PAD-Terminal XON Character (17) 51 Output Lock Option (0)
- 43 PAD-Terminal XOFF Character (19)
- 54 Terminal-PAD Flow Control (0)
- 55 Terminal-PAD XON Character (17)
- 56 Terminal-PAD XOFF Character (19)
-
-
- Parameters marked with "*" should not be used.
-
-
- Para-
- meter Description
- ----- -----------
-
- 1 Linefeed Insertion
-
- This parameter instructs the PAD to routinely insert a linefeed
- (LF) character into the data stream following each appearance of a
- carriage return (CR) character. Values may be OR-ed together:
-
- 0 No LF Insertion (TP4 Default)
- 1 Insert LF after CR on output to the terminal
- 2 Insert LF after CR on input from the terminal
- 4 Insert LF after CR on echo to the terminal
-
-
- 2 Network Message Display
-
- This parameter controls the transmission of network-oriented
- messages to the terminal. Values are:
-
- 0 Transmit network-oriented messages (Default)
- 1 Suppress network-oriented messages
-
-
- 3 Echo
-
- This specifies whether or not the network returns images of
- characters entered from the terminal during Data Transfer mode.
- Values are:
-
- 0 Network does not echo
- 1 Network echoes according to the Rcho Mask (Default)
-
-
- 3 Echo Mask
-
- The Echo Mask specifies which characters are to be echoed during
- Data Transfer mode. Values may be OR-ed together:
-
- 1 Alphanumerics
- 2 Carriage Return
- 4 Escape
- 8 Editing Characters
- 16 Terminators
- 32 Form Effectors
- 64 Control Characters
- 128 Other Characters
-
- Default is 163 = 1+2+32+128 (Alphanumerics, Carriage Return, Form
- Effectors, and Other Characters).
-
-
- 3 Transmit Mask
-
- The Transmit Mask specifies those characters which indicate a
- logical break in the data being entered from a terminal and which
- force transmission of that data to its destination. Values may be
- OR-ed together:
-
- 0 Transmission on Transmit Mask disabled
- 1 Alphanumerics
- 2 Carriage Return (Default)
- 4 Escape
- 8 Editing Characters
- 16 Terminators
- 32 Form Effectors
- 64 Control Characters
- 128 Other Characters
-
-
- 4 Buffer Size
-
- This parameter is archaic and should no longer have any affect on a
- TP. It is used to specify the maximum number of characters that
- will be accumulated by the network before they are forwarded to the
- Host.
-
- 0 Buffer 256 characters (Default)
- 1-255 Buffer 1-255 characters
-
-
- 7 Command Mask
-
- This is an archaic parameter. Its use has been phased out, but the
- parameter number has not be redefined for another function.
-
-
- 8 Command Mask
-
- This is an archaic parameter which has not been redefined to
- support another function.
-
-
- 9 Carriage Return Padding
-
- The Carriage Return Radding parameters specify the number of PAD
- chracter times to be inserted adter each carriage return character
- sent to the terminal. Parameter 9 specifies the Fixed Component.
- Values may run from 0 through 31 character-times of padding
- provided.
-
-
- 10 Linefeed Padding
-
- This specifies the number of pad character delays inserted after
- each linefeed (LF) character sent to the terminal. Values may
- range from 0 through 15 character-times of padding provided.
-
-
- 11 Tab Padding
-
- This specifies the number of pad character delays inserted after
- each horizontal tabulation (HT) character sent to the terminal.
- Values may range from 0 through 15 character-times of padding
- provided.
-
-
- 12 Line Width
-
- This identifies the number of character positions per terminal
- print line. Values range from 1 through 255 characters per line;
- or 0, which specifies 256 character per line.
-
-
- 13 Page Length
-
- This parameter identifies the number of lins per terminal page or
- displa screen. Values range from 1 throuhj 255 lines per page; or
- 0, which specifies an infinite page length.
-
-
- 14 Line Folding
-
- This parameter specifies whether or no the PAD begins a new line
- when the number of characters in a print line exceeds the line
- width:
-
- 0 Disable line folding
- 1 Enable line folding (Default)
-
-
- 15 Page Wait
-
- This parameter specifies whether or not the PAD automatically
- enters a flow controlled state (X-OFFed) at the end of each page.
- Page length is defined by Telenet parameter 13, above.
-
- 0 Page Wait disabled (Default)
- 1 Page Wait enabled
-
-
- 16 Interrupt on Break
-
- This parameter specifies whether or not the PAD will transmit an
- INTERRUPT packet to the Host when a break signal is received from
- the terminal. Values are:
-
- 0 No INTERUPT packet sent on break (Default)
- 1 Send INTERRUPT packet on break
-
-
- 17 Break Code
-
- The Break Code specifies an eight-bit representation for the break
- signal condition. Cales may be any number from 1 through 255.
- Default is 0 (No break code).
-
-
- 18 Network Virtual Terminal (NVT) Option
-
- This parameter enables or disables NVT facilities by functional
- group:
-
- 0 NVT disabled (Default)
- 2 Enables Process Control function *
- 4 Enables Editing Function
-
- * use with caution
-
-
- 19 Initial Keyboard State
-
- This defines the initial state of the terminal keyboard at the
- beginning of a virtual call. Lock the keybaord if the Host sends a
- header at the beginning of a virtual call. Leave the keybaord
- unlocked if the Host expects an initial character from the
- terminal:
-
- 0 Keyboard initially locked (Default)
- 1 Keyboard initially unlocked
-
-
- 20 Half/Full Duplex
-
- This parameter specifies the echoing requirement of the terminal.
- Values are:
-
- 0 Full duplex terminal
- 1 Half duplex terminal
-
-
- 21 Real Character Code
-
- This parameter specifies the communications code for representing
- data generated or recognized by the terminal. Values are:
-
- 0 ASCII
- 1 Correspondence (standard Selectric)
- 2 EBCD
- 3 APL ASCII (typewriter-paired)
- 4 APL ASCII (bit-paired)
- 5 APL Correspondence
- 6 APL EBCD
-
-
- 22 Printer Style
-
- This identifies the class of printing mechanism used by the
- terminal:
-
- 0 Typewriter style terminal
- 1 Line printer style terminal
-
-
- 23 Terminal Type
-
- This identifies the specific make and model of the terminal.
- Values are:
-
- 0 Unknown or Synchronous Host
- 1-126 Terminal codes
- 127 Asynchronous Hosts
-
-
- 24 Permanent Terminal
-
- This determines whether the netwirk queriers for a terminal
- identifier or employs a pre-set identifier. Values are:
-
- 0 Request identifier (Default)
- 1 Use pre-set identifier
-
-
- 25 Manual/Automatic Connection
-
- This parameter specifies whether a pre-defined virtual circuit is
- to be established automatically for the terminal, or it the call
- must be initiated by a C(onnect) or ID command entered from the
- terminal. Values are:
-
- 0 Manual (Connect or ID required) (Default)
- 1 Automatic (Address pre-defined)
-
-
- 26 Rate
-
- This paramter specifies the transmission speed of the terminal,
- as determined by the network:
-
- 0 110 bps
- 1 134.5
- 2 300
- 3 1200
- 4 600
- 5 75
- 6 150
- 7 1800
- 8 200
- 9 100
- 10 50
- 11 ??
- 12 2400
-
-
- 27 Delete Character
-
- This specifies the character to be used for single-character
- editing.
-
- 0 Function disabled
- 1-127 Identifies the character to be used
-
- Default is decimal 127.
-
-
- 28 Cancel Character
-
- Specifies the character to be used to delete input data buffered
- for the terminal at the PAD.
-
- 0 Function disabled
- 1-127 Identifies the character to be used
-
- Default is decimal 24.
-
-
- 29 Display Character
-
- Specifies the character to be used for displaying data which has
- been accumulated by the PAD.
-
- 0 Function disabled
- 1-127 Identifies the character to be used
-
- Default is decimal 18.
-
-
- 30 Abort Character
-
- Specifies the character which when recevied from the terminal,
- causes the Host to run the user's process to completion without
- sending any further output to the terminal. Note: Use with
- caution.
-
- 0 Function disabled (Default)
- 1-127 Identifies the character to be used
-
-
-
- 31 Interrupt Character
-
- Specifies the character to be used to signal the Host to suspend,
- interrupt, abort, or terminate the operation of the user's current
- process. Note: Use with caution. Values are:
-
- 0 Function disabled (Default)
- 1-127 Identifies the character to be used
-
-
- 32 Automatic Hang Up
-
- This specifies whether the terminal is to be physically
- disconnected from the network or left in Command Mode at the end of
- a virtual call. Note: Use with caution. Values are:
-
- 0 Leave in Command Mode upon disconnect (Default)
- 1 Hang up upon disconnect
-
-
- 33 Flush Output
-
- This parameter controls the transmission of all data from the Host
- to the terminal:
-
- 0 Transmit all information sent from (Default)
- the Host to the terminal
- 1 Discard all information sent from
- the Host to the terminal
-
-
- 34 Transmit on Timers
-
- This specifies that characters accumulated by the network are
- forwarded upon epiration of either the Idle or Interval Timer.
- Values are:
-
- 0 Disable transmission on timers
- 1 Enable transmission on timers (Default)
-
-
- 35 Idle Timer
-
- The Idle timer defines the time interval between chracters arriving
- from the terminal which, when exceeded, causes the network to
- transmit any accumulated characters to the Host. Values are:
-
- 0 Timer disabled
- 2-255 multiples of 50 ms (.05 seconds)
-
- Note: Default is 80 (4 seconds)
-
-
- 36 Interval Timer
-
- The Interval Timer specifies the maximum time period during which
- the network PAD will acuumulate characters before forwarding them
- to their destination. Values are:
-
- 0 Timer disabled (Default)
- 2-255 multiples of 50 ms (.05 seconds)
-
-
- 37 Network Usage Display
-
- This controls the transmission of information on chargeable network
- usage provided at the end of a virtual call. Values are:
-
- 0 Exclude network-generated usage information
- from the DISCONNECTED message (Default)
- 1 Include network-generated usage information
- from the DISCONNECTED message
-
-
- 38 Carriage Return Padding
-
- The Carriage Return Padding paramter specifies the number of pad
- character times to be inserted after each carriage return character
- sent to the terminal. Parameter 38 specifies the Viable Component.
- Values may run from 0 through 7.
-
-
- 39 Padding Options
-
- This paramter specifies whether or not the network provides time
- delay padding after form effectors sent to the terminal. Values
- are:
-
- 0 Network provides no time delay padding
- 1 Network provides time delay padding (Default)
- after CR, LF, and HT characters
-
-
- 40 Insert on Break
-
- This specifies whether or not the PAD inserts the Break Code in the
- data stream at the point at which the break signal is received from
- the terminal. Values are:
-
- 0 Do not insert on break (Default)
- 1 Insert Break Code on break
-
-
- 41 DCE-to-DTE Flow Control
-
- This parameter specifies network XON/XOFF control of transmission
- from the terminal. Values are:
-
- 0 No DCE-to-DTE flow control (Default)
- 1 Network provides flow control
-
-
- 42 DCE-to-DTE XON Character
-
- This identifies the character which, when sent from the network to
- the terminal, causes the terminal to resume transmission of
- buffered data. Value may be any character from 1 to 127. Default
- is 17 (19 octal, 11 hex).
-
-
- 43 DCE-to-DTE XOFF Character
-
- This identifies the character which, when sent from the network to
- the terminal, causes the terminal to temporarily suspend
- transmission of buffered data. Value may be any character from 1
- to 127. Default is 19 (21 octal, 13 hex).
-
-
- 44 Generate Break
-
- This parameter is used to cause a break signal to be transmitted
- from the PAD to the terminal. It is no longer valid to set this
- parameter.
-
-
- 45 APP on Break
-
- This paramter specifies whether or not the PAD transmits a SET &
- READ PARAMETERS PAD Message to the Host system when a break signal
- is received from the terminal. The SET & READ PARAMETERS PAD
- Message is a translation of an APP TIU command defined by the
- Telenet Host Interface specification, which was used by packet-mode
- DTE prior to the adoption of CCITT recommendations for packet-mode
- DTE. Thus, GTE Telenet strongly advises against the use of the
- parameter by X.25 DTE. Values are:
-
- 0 No SET & READ PARAMETERS PAD Message (Default)
- generated on break
- 1 SET & READ PARAMETERS PAD Message generated
- on break
-
-
- 46 Input Unlock Option
-
- This parameter specifies what action the PAD takes after the
- termuinal user has entered a line of data, the keyboard has been
- locked, and the PAD has no data to deliver to the terminal. Values
- are:
-
- 0 Unlock based on timer expiration (Default)
- 1 Unlock based on input data content
-
-
- 47 Input Unlock Timer
-
- This specifies the time interval that the PAD will wait before
- unlocking the terminal keybopard, if the PAD has no data pending
- delivery to the terminal and paramter 46 is set to 0. Values range
- from 0 through 255 multiples of 50 ms (.05 seconds). Default is 0
- seconds.
-
-
- 48 Input Unlock Character
-
- This specifies the character which, when appearing at the beginning
- of a data line, will cause the PAD to leave the keyboard locked at
- the end of the data line (if there is no data pending delivery to
- the terminal). Value may be any character code from 0 through 127;
- or 240, which leaves the keyboard locked adter all characters.
- Default is 0.
-
-
- 49 Output Lock Option
-
- This specifies the action the PAD will take when it recives data
- for delivery to the terminal, when the keyboard is unlicked for
- input from the terminal. Values are:
-
- 0 Discard output data
- 1 Transmit output after input completion
- 2 Transmit output id input idle (Default)
-
-
- 50 Output Lock Timer
-
- This defines the intercal between characters arriving from the
- terminal which, when exceeded, causes the PAD to lock the keyboard
- when it has output pending delivery to the terminal. Values may
- range from 0 through 255 multiples of 50 ms (.05 seconds). Default
- is 10 (500ms).
-
-
- 51 Output Lock Option
-
- This parameter specifies what action the PAD takes after it has
- transmitted all pending data to the terminal. Values are:
-
- 0 Unlock based on timer (Default)
- 1 Unlock based on output completion
- 2 Unlock based on output data content
-
-
- 53 Break Options
-
- This allows for a combination of options for handling break signals
- from the terminal. Values may be OR-ed together:
-
- 0 No options selected (Default)
- 1 Interrupt on break
- 4 APP on break
- 32 Insert on break
-
-
- 54 DTE-to-DCE Flow Control
-
- This parameter specifies XON/XOFF control of transmission from the
- network. Values are:
-
- 0 No DTE-to-DCE flow control (Default)
- 1 Network respects flow control
-
-
- 55 DTE-to-DCE XON Character
-
- This identifies the character which, when sent to the network,
- causes the network to resume the transmission of buffered data.
- Value may be any character code from 1 through 127. Default is 17
- decimal.
-
-
- 56 DTE-to-DCE XOFF Character
-
- This identifies the character which, when sent to the network,
- causes the network to temporairly suspend the transmission of
- buffered data. Value may be any character code from 1 through 127.
- Default is 19.
-
-
- 57 Connection Mode
-
- This parameter specifies which level of terminal code conversion
- the PAD is to perform during Data transfer mode. Values are:
-
- 0 Transparent
- 1 Real
- 2 Virtual (Default)
-
-
- 58 Connection Escape
-
- This parameter specifies whether or not the terminal may escape
- from Data Transfer mode to Network Command mode. Values are:
-
- 0 Escape not possible
- 1 Escape possible (Default)
-
-
- 59 Flush Output on Break
-
- This paramter specifies whether or not the PAD transmits a SET &
- READ PARAMETER PAD Message to the Host and begins discarding output
- to the terminal when a break signal is received from the terminal.
- Again, GTE Telenet recommends that this parameter not be used by
- X.25 DTE.
-
- 0 No SET & READ PARAMETERS PAD Message (Default)
- sent and no output flushed
- 1 SET & READ PARAMETERS PAD Message sent and output
- to the terminal
-
-
- 63 Eight-bit Transparency
-
- This paramter identifies whether the terminal uses the eight (most
- significant) bit for data or as a parity bit. Values are:
-
- 0 No parity, eight-bit transparency
- 1 Parity required (Default)
-
-
- 64 Early ACK
-
- This parameter specifies whether or not the PAD for termninal
- support should acknowledge data packets received for the terminal
- prior to transmitting the packets (in the form of a character
- stream) to the terminal. Values are:
-
- 0 Acknowledge data packets after transmission
- to the terminal (Default)
- 1-7 Acknowledge data packets 1-7 packets prior to
- transmission to the terminal
-
- Note: *Extreme Caution* should be excercised when modifying this
- parameter. The increased "artificial window" size does not
- guarantee packet delivery to the terminal. Large amounts of
- data could be lost from any form of network disconnect.
- Values of 5 or greater should never be used.