0 0 1 0 0 0 0 0 (option) ISO B4, horizontal and vertical (for use by Japanese Kanji and Chinese
.TE
.LP
ideogram terminals)
\fINote\ 1\fR
\ \(em\ The whole octet has to be considered when decoded, as the meaning
is coded as a value, not as a single bit position within the octet. All other values are reserved, i.e. it is not allowed to <<combine>> the indication of
several formats into the same octet by setting more than one bit to <<one>>.
.LP
\fINote\ 2\fR
\ \(em\ The following rule is used for the coding of bits 7
and\ 8:
Bits\ 8\ 7\ Meaning
\fBBits\ \fR
0\ 0\ Vertical and horizontal
\fBBits\ \fR
0\ 1\ Horizontal only
\fBBits\ \fR
1\ 0\ Vertical only.
.nr PS 9
.RT
.ad r
\fBTable 4/T.62 | is [T20.62], p.\fR
.sp 1P
.RT
.ad b
.RT
.LP
.sp 1
.sp 1P
.LP
4.2.3.8
\fIMiscellaneous terminal capabilities\fR
.sp 9p
.RT
.PP
A variable length field indicating the receiving capabilities for non\(hybasic
standardized values of character spacing, line spacing and graphic
renditions. Each parameter value of such a function shall be indicated
by the control sequence (CSI, PI LI F) as defined in Recommendation\ T.61.
This applies to the function select horizonal spacing (SHS) for a character
pitch, select
vertical spacing (SVS) for a line pitch and select graphic rendition (SGR)
for a graphic rendition. This also applies to the functions graphic size
modification (GSM) and select presentation direction (SPD) for Japanese
Kanji and Chinese ideogram capabilities and to character orientation function
(COF) for Chinese ideogram capabilities. When more than one such character
sequence is to be indicated, a single space shall be inserted between them.
Only one
parameter value is allowed within a CSI sequence.
.RT
.sp 1P
.LP
4.3
\fISession termination phase\fR
.sp 9p
.RT
.PP
The following service primitives are used:
.RT
.LP
S\(hyRELEASE
.LP
S\(hyU\(hyABORT
.LP
S\(hyP\(hyABORT
.sp 1P
.LP
4.3.1
\fIThe parameters of the S\(hyRELEASE are used as follows\fR
.sp 9p
.RT
.PP
\fIResult\fR | \ this parameter will indicate \*Qaffirmative\*U (only in
confirmation and response).
.PP
\fISS\(hyuser\(hydata\fR | \ this parameter is not used in Teletex and Group 4
facsimile services.
.bp
.RT
.sp 1P
.LP
4.3.2
\fIS\(hyU\(hyABORT\fR
.sp 9p
.RT
.PP
Using this primitive will be interpreted as \*Qlocal terminal
error\*U.
.PP
\fISS\(hyuser\(hydata\fR | \ this parameter is not used in Teletex and Group 4
facsimile services.
.RT
.sp 1P
.LP
4.3.3
\fIS\(hyP\(hyABORT\fR
.sp 9p
.RT
.PP
Receipt of this primitive is defined in Recommendations X.215 and X.225.
.RT
.sp 1P
.LP
4.4
\fIData transfer phase\fR
.sp 9p
.RT
.PP
The following service primitives are used:
.RT
.LP
S\(hyACTIVITY\(hySTART
.LP
S\(hyACTIVITY\(hyRESUME
.LP
S\(hyACTIVITY\(hyINTERPRET
.LP
S\(hyACTIVITY\(hyDISCARD
.LP
S\(hyACTIVITY\(hyEND
.LP
S\(hySYNC\(hyMINOR
.LP
S\(hyU\(hyEXCEPTION\(hyREPORT
.LP
S\(hyP\(hyEXCEPTION\(hyREPORT
.LP
S\(hyCONTROL\(hyGIVE
.LP
S\(hyTOKEN\(hyPLEASE
.LP
S\(hyCAPABILITY\(hyDATA
.LP
S\(hyDATA
.sp 2P
.LP
4.4.1
\fIS\(hyACTIVITY\(hySTART\fR
.sp 1P
.RT
.sp 1P
.LP
4.4.1.1
\fIThe parameters of S\(hyACTIVITY\(hySTART are used as follows\fR
.sp 9p
.RT
.LP
\(em
\fIActivity identifier:\fR \ This mandatory parameter shall
contain the document reference number (see \(sc\ 3.5.6).
.LP
\(em
\fISS\(hyuser\(hydata:\fR \ This non\(hymandatory parameter is used to
convey data
of the presentation and/or application protocol(s). All information necessary
to negotiate the document interchange protocol parameters, defined in the
T.400\(hySeries of Recommendations, is contained in this parameter field.
.sp 1P
.LP
4.4.1.2
\fIAdditional parameters\fR
.sp 9p
.RT
.PP
The following parameters may also be included:
.RT
.LP
a)
\fIDocument type identifier\fR \fI:\fR \ Not a mandatory field. If a
normal document is used, this parameter shall not be indicated. If other
types of document are used, the inclusion of this field is obligatory.
.LP
(Description of types of document are in Annex A.)
.LP
b)
\fIService interworking identifier\fR \fI:\fR \ Not a mandatory field.
This parameter may be used to indicate that the document is suitable for
interworking; however use of this parameter is mandatory in the case of
service interworking.
.LP
\fINote\fR \ \(em\ When communicating with a conversion facility, an
identifier may be required for:
.LP
i)
Teletex/telex interworking \(em the identifier will
indicate that the document(s) has been prepared in accordance with the rules
given in Recommendations\ F.200, T.90 and\ T.91;
.LP
ii)
Teletex/Videotex interworking \(em for further study;
.LP
iii)
Teletex/facsimile interworking \(em for further study.
.LP
c)
\fIIndication of required terminal capability\fR (standardized or private
use): Not a mandatory field, however, this parameter must be used if standardized
optional terminal capabilities are required for the document.
.LP
d)
\fIPrivate use parameters:\fR \ Non mandatory. Definition of such parameters
is not standardized (see \(sc\ 3.2).
.bp
.sp 1P
.LP
4.4.1.3
\fIEncoding of the S\(hyACTIVITY\(hySTART additional parameters value\fR
.sp 9p
.RT
.LP
a)
\fIDocument type identifier\fR
.LP
Absence of this parameter shall indicate a normal document. This parameter,
if used, is a binary encoded field of fixed length of one octet identifying
the documnent type as follows:
.LP
Bits
87654321
Type of document
.LP
00000001
Operator document
.LP
00000010
Control document
.LP
00000011
Monitor document
.LP
All other encodings are reserved for future
standardization.
.LP
b)
\fIService interworking identifier\fR
.LP
Bit 1 of the first octet set to 1 shall indicate that the
associated document is suitable for forwarding via the telex service.
.LP
All other bit values are reserved for future
standardization.
.LP
c)
\fIIndication of required terminal capability\fR
(non\(hybasic Teletex terminal capabilities)
.LP
\(em
Graphic character sets (refer to Recommendations T.60 and T.61)
.LP
A variable length field indicating the receiving
capabilities for non\(hybasic standardized graphic character sets. Each such
graphic character sets or DRCS (dynamically redefinable character set) for
Japanese Kanji and Chinese ideogram characters shall be indicated by the
sequence of characters used to designate that set, as defined in
Recommendation\ T.61. Where more than one such character set are to be
indicated, the ESC character fulfills the purpose of a separator between the
character set indicators.
.LP
The following descriptions apply to the use of a DRCS set for Japanese
Kanji and Chinese ideogram characters:
.LP
i)
if the DRCS set is indicated as a parameter value associated with a S\(hyACTIVITY\(hySTART
or S\(hyACTIVITY\(hyRESUME, this should be
followed by combinations of a character code (CC) to be registered to the
DRCS set and its character dot pattern (DP);
.LP
ii)
the field length of a character code is
defined by the DRCS set and that of a character dot pattern is indicated as
parameter values of a character box height and a character box width
parameters.
.LP
\fINote\fR \ \(em\ The value of this parameter in either
S\(hyACTIVITY\(hySTART or S\(hyACTIVITY\(hyRESUME will be as follows:
.LP
DRCS CC1 DP1 CC2 DP2 | | | CCi DPi
.LP
\(em
Control character sets (see \(sc 4.2.3.5)
.LP
\(em
Teletex page format (see \(sc 4.2.3.7)
.LP
\(em
Miscellaneous Teletex terminal capabilities (see
\(sc\ 4.2.3.8)
.LP
\(em
Character box height
.LP
A variable length field indicating the receiving
capabilities for the number of dots of the character box height. The number
of dots shall be indicated by the numeric parameter as defined in
Recommendation\ T.61.
.LP
Further study is required for indicating more than one value.
.LP
\(em
Character box width
.LP
A variable length field indicating the receiving
capabilities for the number of dots of the character box height. The number
of dots shall be indicated by the numeric parameter as defined in
Recommendation\ T.61.
.LP
Further study is required for indicating more than one value.
.sp 2P
.LP
4.4.2
\fIS\(hyACTIVITY\(hyRESUME\fR
.sp 1P
.RT
.sp 1P
.LP
4.4.2.1
\fIThe parameters of S\(hyACTIVITY\(hyRESUME are used as follows\fR
.sp 9p
.RT
.LP
\(em
\fIOld session connection identifier\fR (mandatory only if
linking is attempted on a new session connection): this non\(hymandatory
parameter shall contain the old session connection identifier, identifying
the session in which the first part of the document was sent.
.LP
a)
calling SS\(hyuser\(hyreference (mandatory) see \(sc 4.2.1;
.LP
b)
called SS\(hyuser\(hyreference (mandatory) see \(sc 4.2.1;
.LP
c)
common reference (mandatory) see \(sc 4.2.1;
.LP
d)
additional reference information (non\(hymandatory) see \(sc\ 4.2.1.
.bp
.LP
\(em
\fIOld activity identifier\fR | \ this mandatory parameter shall
contain the activity identifier (document reference number) of the
corresponding S\(hyACTIVITY\(hySTART.
.LP
\(em
\fISynchronization point serial number\fR | \ this mandatory
parameter shall contain the synchronization point serial number (checkpoint
reference number) from which the transmission is being continued.
.LP
\(em
\fIActivity identifier\fR | \ the new activity identifier shall
contain the document reference number as defined in \(sc\ 3.5.7.
.LP
\(em
\fISS\(hyuser\(hydata\fR | \ this non\(hymandatory parameter is used to
convey data of the presentation and/or application protocol(s). All information
necessary to negotiate the document interchange protocol parameters, defined
in the T.400\(hySeries of Recommendations, is contained in this parameter
field.
.sp 1P
.LP
4.4.2.2
\fIAdditional parameters\fR
.sp 9p
.RT
.PP
The following parameters may also be included:
.RT
.LP
a)
\fIDocument type identifier\fR [see \(sc 4.4.1.2 | )].