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…02…CPS/230/ICD/0003
…02…FAH/830928 #
ACP 127 NATO Supp.
3 Procedures
…02…Issue 3.6…02…CAMPS
Issue 2 810501 DNs from sec- SHAPE
msg. tions
log no.
118,160,
and 190.
SRS,issue 3.
ECP/006
SHAPE Cla-
rification
Notes, CNs,
dated
810421
DN 2, DN 3 Table Editorials
and
page
of numbering
con-
tents
DN 4 1 Change
to
version
of
appl.
documents.
CN 4 2.2.b.3 Introduction
of
PLAINDRESS
SERVICE
MSG.
DN 5 2.2.c Ref.
to
line
12a
DN 6, CN 4 2.2.c SIC-SVC
for
Service
Messages
DN 6 2.2.e Format
of
Abbrev.
Service
message
clarified.
DN 7 3.d.1 Editorial
DN 8,9,10 3.1.1 Editorials
DN 11 3.1.3.
a.2 Forgotten
text
(from
issue
1)
inserted.
DN 12 3.1.3.
b.1 Inserted
SHAPE
proposed
text.
DN 13 3.1.3.
d.1 Editorial
DN 14 3.1.4 Automatic
generation
of
Security
Warning
Prosign
(alternative
in
3.1.2
still
applies)
DN 15 3.2.1.a Editorial
and
change
of
Bell
sequence.
DN 16 3.2.2.a Original
requirement
for
Bell
deleted.
DN 17 3.2.3.a Editorial
SRS Issue 3, 3.2.4.a Separate
transmissions
p.
78 with
different
precedencies
in
Fl
2.
DN 28 3.2.4.b Ref.
to
ICD/0001
DN 18 3.2.4.b Editorial
DN 19 3.3.1.d Editorial
DN 20 3.3.3.
a.1 Editorial
&
3.3.3.
b.1 Editorial
DN 21 3.3.4.3 Editorial
CN 5 3.4.1.b Special
Handling
vs.
Special
Category
Warnings
CN 5 + 3.4.3.b ICD/003
states
the
MOM
5
of general
rules;
details
ECP/006 concerning
actions
for
single
designators
shall
be
quoted
in
the
SRS.
CN 18 3.4.3. Other
operating
signals
c.2 are
forwarded
as
is
to
the
recipient.
DN 22 3.4.4.c Any
Operating
signals
+ CN 18 passing
validation
are
inserted
automatically
DN 23 3.5.3.c Editorial
DN 24 3.5.3.f Clarification
DN 28 3.5.4.a Ref.
to
ICD/0001
& b
DN 25 3.6.3 Clarification
DN 26 3.7.1. Editorial
b.2
DN 27 3.7.1. Deletion
of
limitation
c.2 on
number
of
AIGs.
DN 28 3.7.4 Ref.
to
ICD/0001
inserted
CN 15 3.74 Modification
DN 28 3.8.4 Ref.
to
ICD/0001
inserted
DN 28 3.9.4 Ref.
to
ICD/0001
inserted
CN 13 3.10.4 No
need
for
insertion
of
acc.
information.
DN 29 + 3.12.1. Special
category
warning
CN 5 1.b replacing
special
handling.
DN 30 3.12.1.3 Correction
DN 31 3.12.1.5 Clarification
DN 32 3.12.1.6 Clarification
CN 5 3.12.3.1 Special
Category
Warnings
vs
Special
Handling
DN 33 + 3.12.3.2 Detection
of
SICs
CN 12 inserted.
CN 12 3.12.3.4 Internal
Handling
Instr.
Inserted
DN 5 3.12.3.2 SIC-SVC
CN 5 3.12.4.1 Nat.
EYES
deleted
DN 28 3.12.4.1 Ref.
to
ICD/0001
DN 28 3.12.4.2 Ref.
to
ICD/0001
DN 33 + 3.12.4.3 Detection
of
exercise
CN 12
DN 28 3.12.4.4 Ref.
To
ICD/0001
DN 31 3.12.4.5 Clarification
DN 28 3.12.4.5 Ref.
to
ICD/0001
DN 28 3.12.4.6 Ref.
to
ICD/0001
DN 34 3.12.4.5 Correction
DN 35 3.13 Clarification
DN 36 3.14 Clarification
DN 37 3.16.1 Correction
DN 39 3.18 Readdressal
inserted
DN 38 4.1.2 Correction
Issue 3 810723 SHAPE Section
Letter
CAMPS Log
272
DN 1 Rev. Editorial
Record
p. 2e
DN 2 2.1 a3) Editorial
DN 3 2.2 f) Change
in
mandatory
lines
DN 4 3.1.3 c2)Editorial
DN 5 3.2.1 a) Change
to
Bell
Sequence
DN 6 3.3.4.3) Editorial
DN 7 3.4.1 b) Editorial
DN 8 3.4.1 c3)Reinserted
last section
DN 9 3.5.3 f2)Inserted
clarifying text
DN 10 3.7.4 Editorial
DN 11 3.12.1.1b) Deleted
"for"
DN 12 2.2g Inserted
general
Explanation
DN 13 3.1.5.1 Inserted
neco
prosign
Issue 3.1 810812 ECP no. 010
dated 810611
CN 2 3.3.4 Detection
of
format
line
10
CN 4 3.10.3 ASM
without
SSN
CN 12 3.12.3.4 Format
line
12d
detection
Issue 3.2 820111 CPS/ECP/016
dated 811221
D-5 3.12.3.2
2) Exercise
SIC
range
E-18 3.11.3 X
character
after
BT
E-21 3.12.1.2
b) Special
SIC
E-30 3.5.3.f)3) Readdressal
of
abbreviated
plaindress
message
E-31 3.4.1 d) T-instructions
Issue 3.3 820118 CPS/ECP/019
dated 810111
G-1 Length
of
lines
in
Data
Messages
Issue 3.5 830509 CPS/ECP/031 17,18 Bell
signal
dated 830509 28 DTG-valid
range
42 FL12B
Issue 3.6 830928 CPS/ECP/034 14,15 Rejectable
Conditions
dated 830712 17 Acceptable
Deviations
21 SSN
25 Format
Element
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
1 DOCUMENT APPLICABILITY .......................
7
2 ACP 127 MESSAGE COMPOSITION ..................
8 to 9
2.1 ACP 127 MESSAGE COMPONENTS ...............
8
2.2 TYPES OF FORMAT ..........................
8
3 LINE-BY-LINE PROCEDURES ...................... 10
to 50
3.1 START OF TRANSMISSION, FORMAT LINE 1 ..... 11
3.1.1 ACP 127 .............................. 11
3.1.2 Alternatives ......................... 12
3.1.3 Reception ............................ 12
3.1.4 Generation ........................... 16
3.2 PRECEDENCE AND CALLED STATIONS ........... 16
3.2.1 ACP 127 .............................. 16
3.2.2 Alternatives ......................... 17
3.2.3 Reception ............................ 17
3.2.4 Generation ........................... 19
3.3 CALLING STATION, FORMAT LINE 3 ........... 19
3.3.1 ACP 127 .............................. 19
3.3.2 Alternatives ......................... 20
3.3.3 Reception ............................ 20
3.3.4 Generation ........................... 22
3.4 SECURITY AND SPECIAL HANDLING DESIGNATORS
AND TRANSMISSION INSTRUCTION, FORMAT LINE 4 22
3.4.1 ACP 127 .............................. 22
3.4.2 Alternatives ......................... 24
3.4.3 Reception ............................ 24
3.4.4 Generation ........................... 26
3.5 PRECEDENCE PROSIGNS, DATE-TIME
GROUP AND OPERATING SIGNALS, FORMAT LINE 5 27
3.5.1 ACP 127 .............................. 27
3.5.2 Alternatives ......................... 27
3.5.3 Reception ............................ 28
3.5.4 Generation ........................... 30
3.6 ORIGINATOR ............................... 31
3.6.1 ACP 127 .............................. 31
3.6.2 Alternatives ......................... 31
3.6.3 Reception ............................ 31
3.6.4 Generation ........................... 31
3.7 ACTION ADDRESSEE(S) ...................... 32
3.7.1 ACP 127 .............................. 32
3.7.2 Alternatives ......................... 33
3.7.3 Reception ............................ 33
3.7.4 Generation ........................... 34
3.8 INFORMATION ADDRESSEE(S) ................. 35
3.8.1 ACP 127 .............................. 35
3.8.2 Alternatives ......................... 35
3.8.3 Reception ............................ 35
3.8.4 Generation ........................... 35
3.9 EXEMPT ADDRESSEE(S) ...................... 36
3.9.1 ACP 127 .............................. 36
3.9.2 Alternatives ......................... 36
3.9.3 Reception ............................ 36
3.9.4 Generation ........................... 36
3.10 GROUP COUNT AND ACCOUNTING SYMBOL ....... 37
3.10.1 ACP 127 ............................. 37
3.10.2 Alternatives ........................ 37
3.10.3 Reception ........................... 37
3.10.4 Generation .......................... 37
3.11 SEPARATOR ............................... 38
3.11.1 ACP 127 ............................. 38
3.11.2 Alternatives ........................ 38
3.11.3 Reception ........................... 38
3.11.4 Generation .......................... 38
3.12 FORMAT LINE 12 .......................... 39
3.12.1 ACP 127 ............................. 39
3.12.1.1 Format line 12a ................. 39
3.12.1.2 Format Line 12b.................. 40
3.12.1.3 Format Line 12c ................. 40
3.12.1.4 Format Line 12d ................. 40
3.12.1.5 Format Line 12e ................. 41
3.12.1.6 Format Line 12f ................. 41
3.12.1.7 Format Line 12g.................. 41
3.12.2 Alternatives ........................ 41
3.12.3 Reception ........................... 41
3.12.3.1 Format Line 12a ................. 41
3.12.3.2 Format Line 12b ................. 42
3.12.3.3 Format Line 12c ................. 42
3.12.3.4 Format line 12d ................. 42
3.12.3.5 Format Lines 12e, 12f, and 12g ...43
3.12.4 Generation .......................... 43
3.12.4.1 Format line 12a ................. 43
3.12.4.2 Format Line 12b ................. 43
3.12.4.3 Format Line 12c ................. 43
3.12.4.4 Format Line 12d ................. 43
3.12.4.5 Format Line 12e ................. 44
3.12.4.6 Format Lines 12f - g ............ 44
3.13 SEPARATOR, FORMAT LINE 13................ 45
3.13.1 ACP 127 ............................. 45
3.13.2 Alternatives ........................ 45
3.13.3 Reception ........................... 45
3.13.4 Generation .......................... 45
3.14 CORRECTIONS, FORMAT LINE 14.............. 46
3.14.1 ACP 127 ............................. 46
3.14.2 Alternatives ........................ 46
3.14.3 Reception ........................... 46
3.14.4 Generation .......................... 46
3.15 FORMAT LINE 15 .......................... 47
3.15.1 ACP 127 ............................. 47
3.15.2 Alternatives ........................ 47
3.15.3 Reception ........................... 47
3.15.4 Generation .......................... 48
3.16 END OF TRANSMISSION, FORMAT LINE 16...... 49
3.16.1 ACP 127 ............................. 49
3.16.2 Alternatives ........................ 49
3.16.3 Reception ........................... 49
3.16.4 Generation .......................... 49
3.17 PILOT FORMAT LINES ...................... 50
3.17.1 ACP 127 ............................. 50
3.17.2 Alternatives ........................ 50
3.17.3 Reception ........................... 50
3.17.4 Generation .......................... 50
3.18 READDRESSED MESSAGE ..................... 51
3.18.1 ACP 127 ............................. 51
3.18.2 Alternatives ........................ 51
3.18.3 Reception ........................... 51
3.18.4 Generation .......................... 51
4 GENERAL PROCEDURES ........................... 52
to 55
4.1 CHARACTERISTICA OF FORMAT LINES .......... 52
4.1.1 End-of-line Function ................. 52
4.1.2 Length of Lines ...................... 52
4.2 FORMAT TOLERANCES AND UNACCEPTABLE
DEVIATIONS FOR INCOMING MESSAGES ......... 53
4.2.1 Format Tolerance ..................... 53
4.2.1.1 Variations in the end-of-line
Function ......................... 53
4.2.1.2 Additional Space Characters ...... 53
4.2.1.3 Additional Letter Shift Charac-
ters ............................. 53
4.2.2 Unacceptable Deviations for
Uncontrolled Lines ................... 54
4.2.2.1 General .......................... 54
4.2.2.2 Lines Which Are Too Long ......... 54
4.2.2.3 Halted Messages .................. 54
4.2.2.4 Consecutive Identical Characters . 55
4.2.2.5 Oversized Messages ............... 55
4.2.2.6 No start-of-transmission
Functions ........................ 55
4.2.2.7 Consecutive SOTF Sequences ....... 56
4.2.2.8 Message Termination .............. 56
1̲ ̲ ̲D̲O̲C̲U̲M̲E̲N̲T̲ ̲A̲P̲P̲L̲I̲C̲A̲B̲I̲L̲I̲T̲Y̲
This document specifies all requirements related to
ACP 127 NATO Supp. 3 procedures which are applicable
to CAMPS.
The requirements specified in this document apply to
the NICS-TARE and TRC and Point-to-Point interfaces
as specified in CPS/ICD/0004 and CPS/ICD/0007.
R̲e̲f̲e̲r̲e̲n̲c̲e̲ ̲D̲o̲c̲u̲m̲e̲n̲t̲s̲
The following documents are listed for reference purposes
only. The listing does not constitute the contents
of the documents as System Requirements but is intended
to serve the Contractor in providing supplementary
information in cases of interpretation of the requirements
specifically stated in this document:
ACP131, JUL 74
ACP117, SEPT 1977, ACP117 SUPP 1G DEC 79
ACP121, SUPP 1A JAN 1970, 121E JUL 70
ACP100, NATO SUPP 1E MAY 1978
ACP127 NATO Supp. 3. MAY 1973, 127(E) OCT 74
NASIS-APP-3 JAN 1978
ADatP-3. JAN 1975
2̲ ̲ ̲A̲C̲P̲ ̲1̲2̲7̲ ̲M̲E̲S̲S̲A̲G̲E̲ ̲C̲O̲M̲P̲O̲S̲I̲T̲I̲O̲N̲
2.1 A̲C̲P̲ ̲1̲2̲7̲ ̲M̲E̲S̲S̲A̲G̲E̲ ̲C̲O̲M̲P̲O̲N̲E̲N̲T̲S̲
a) The ACP 127 message is composed of five parts:
1) Pilot (Format lines A, B, C)
2) Heading (Format lines 1 - 10)
3) Introductory Text (Format lines 12a - 12d)
4) Text (Format line 12e-g)
5) Ending (Format line 14 - 16)
b) Format lines 11 and 13 contain only the separative
sign "BT". The elements of each format line are
described in section 3.
2.2 T̲Y̲P̲E̲S̲ ̲O̲F̲ ̲F̲O̲R̲M̲A̲T̲
a) Message handled over message relay networks are
in general prepared for transmission in one of
the forms: Plaindress, Abbreviated Plaindress,
or Codress. These messages shall contain as a
minimum Format lines 1, 2, 3, 4, 5, 11, 12a (except
for CODRESS), 12b (except for CODRESS), 12g (message
text), 13, and 16. Note that format lines 12c
(exercise) and 12d (internal handling instructions)
are not mandatory, but if present will be handled
as given in section 3.12.3 and section 3.12.4 of
this document. Other message types are abbreviated
Service Messages and Data Messages.
b) P̲l̲a̲i̲n̲d̲r̲e̲s̲s̲ ̲M̲e̲s̲s̲a̲g̲e̲s̲
1) A Plaindress message is one in which the originator
and addressee designations are indicated externally
of the text.
2) In addition to the mandatory Format lines,
a Plaindress message shall contain Format lines
6, 7 (8 and 9 when used), i.e. the address
components, plus line 12a.
3) Service messages of type plaindress are detected
from and generated with SIC-SVC in
Fl 12b.
c) A̲b̲b̲r̲e̲v̲i̲a̲t̲e̲d̲ ̲P̲l̲a̲i̲n̲d̲r̲e̲s̲s̲ ̲M̲e̲s̲s̲a̲g̲e̲s̲
An Abbreviated Plaindress message is a message
in which the address components mandatory in normal
Plaindress format are omitted for the sake of brevity.
( An abbreviated plaindress message shall contain
format line 12a. Refer to section 2.2 a)).
Service messages of type abbreviated plaindress
are detected from and generated with SIC-SVC in
Fl 12b.
d) C̲o̲d̲r̲e̲s̲s̲ ̲M̲e̲s̲s̲a̲g̲e̲s̲
1) A Codress message is one in which the entire
address (i.e. originator and all addressees)
is contained only within the encrypted text.
2) In addition to the mandatory Format lines,
a Codress message shall contain Format line
10.
e) A̲b̲b̲r̲e̲v̲i̲a̲t̲e̲d̲ ̲S̲e̲r̲v̲i̲c̲e̲ ̲M̲e̲s̲s̲a̲g̲e̲
1) Abbreviated Service Messages are prepared in
a shortened version of an Abbreviated Plaindress
Format. Abbreviated service messages shall
contain the format lines 1, 2, 3, 4, 12g, and
16 as mandatory lines and 15 as optional line.
2) In this form of message the SSN may be omitted
or, if required, the Station Serial Number
"[[[[" in Format lines 3 and 15 may be used.
f) D̲a̲t̲a̲ ̲M̲e̲s̲s̲a̲g̲e̲s̲
Data messages shall contain the lines 1, 2, 3,
4, 12g, 15 and 16 as a minimum.
g) Whenever a format line in this document is referenced
as mandatory it shall apply according to type of
message as presented above.
3̲ ̲ ̲L̲I̲N̲E̲-̲B̲Y̲-̲L̲I̲N̲E̲ ̲P̲R̲O̲C̲E̲D̲U̲R̲E̲S̲
a) Section 3 will describe in a line-by-line manner
the requirements of the ACP 127 NS-3 message format
applicable for the CAMPS project. Each line will
be considered in the following order of description
(section 3.1 corresponding to format line 1, etc.):
b) A̲C̲P̲ ̲1̲2̲7̲
This is a listing of the general contents and procedures
of the format line.
c) A̲l̲t̲e̲r̲n̲a̲t̲i̲v̲e̲s̲
The system shall be capable of correctly analyzing
and preparing format lines containing the alternative
procedures specified here. The alternative to
be used at a given instant with respect to outgoing
messages shall be that specified by the supervisor
(refer CPS/210/SYS/0001 section 3.2.1.5.1.c).
For incoming messages, all procedures specified
shall form part of the message analysis (where
relevant).
d) R̲e̲c̲e̲p̲t̲i̲o̲n̲
1) This is a listing of procedures specifically
applicable during message receipt.
2) Messages which, on receipt, are found to present
unacceptable departures from the format as
defined in (b) and (c) shall be queued for
message servicing, unless specifically stated
differently.
e) G̲e̲n̲e̲r̲a̲t̲i̲o̲n̲
This is the conversion of internal preparation
formats into ACP 127 format for transmission.
3.1 S̲T̲A̲R̲T̲ ̲O̲F̲ ̲T̲R̲A̲N̲S̲M̲I̲S̲S̲I̲O̲N̲,̲ ̲F̲O̲R̲M̲A̲T̲ ̲L̲I̲N̲E̲ ̲1̲
3.1.1 A̲C̲P̲ ̲1̲2̲7̲
Format line 1 will form part of all messages and will
be composed of the following format elements:
a) V̲Z̲C̲Z̲C̲:̲ This is the start-of-transmission function
(SOTF).
1) SOTF = "V" + start-of-transmission indicator
(SOTI) ="ZCZC".
b) A̲B̲C̲:̲ The station and channel designator, which
will follow the SOTF with no intervening characters
or spaces.
c) F̲i̲g̲u̲r̲e̲ ̲s̲h̲i̲f̲t̲ ̲(̲F̲S̲)̲,̲ ̲N̲N̲N̲,̲ ̲l̲e̲t̲t̲e̲r̲ ̲s̲h̲i̲f̲t̲ ̲(̲L̲S̲)̲
1) The transmission serial number. Optionally
(but never mixed on same channel) this may
consist of four digits and not three as shown.
The sequence will follow the sequence b, with
no intervening characters or spaces.
2) Format elements b and c constitutes the transmission
identification (TI). SOTF + TI constitutes
the start-of-transmission sequence (SOTS).
d) A sequence of characters without spaces which may
in some cases follow the sequence (c). These may
be transmission identifications associated with
previous transmissions of the message. The maximum
number of characters shall not exceed 50.
e) S̲p̲a̲c̲e̲ ̲c̲h̲a̲r̲a̲c̲t̲e̲r̲ ̲(̲s̲p̲)̲ ̲R̲e̲p̲e̲a̲t̲e̲d̲ ̲5̲ ̲t̲i̲m̲e̲s̲
1) 5 spaces shall follow either c or d as applicable.
f) U̲U̲ ̲o̲r̲ ̲H̲H̲ ̲s̲e̲c̲u̲r̲i̲t̲y̲ ̲w̲a̲r̲n̲i̲n̲g̲ ̲p̲r̲o̲s̲i̲g̲n̲: This signal
may not always appear. If present it shall follow
f immediately. Two additional codes, each two-alpha,
which are to be defined shall also be acceptable.
1) e and, where appropriate, f constitutes the
"START of MESSAGE ", SoM, function.
g) T̲w̲o̲ ̲c̲a̲r̲r̲i̲a̲g̲e̲ ̲r̲e̲t̲u̲r̲n̲s̲,̲ ̲l̲i̲n̲e̲ ̲f̲e̲e̲d̲ ̲-̲ ̲(̲C̲R̲)̲ ̲(̲C̲R̲)̲ (̲L̲F̲)̲
- constitues the End-of-line function (EOLF).
3.1.2 A̲l̲t̲e̲r̲n̲a̲t̲i̲v̲e̲s̲
A̲C̲P̲ ̲1̲2̲7̲:̲ 5 spaces, UU (or HH), EOLF.*
A̲l̲t̲e̲r̲n̲a̲t̲i̲v̲e̲:̲ 18 spaces, UU (or HH), EOLF.
* Two additional security prosigns may be defined.
3.1.3 R̲e̲c̲e̲p̲t̲i̲o̲n̲
a) F̲o̲r̲m̲a̲t̲ ̲e̲l̲e̲m̲e̲n̲t̲:̲ ̲V̲Z̲C̲Z̲C̲
This is the Start-of-Transmission Function = SOTF.
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲d̲e̲v̲i̲a̲t̲i̲o̲n̲s̲
- Up to 100 spurious characters after the
previous end-of-message sequence and the
detection of VZCZC. Such spurious characters
shall be discarded.
- The letter V not present.
- Spurious (LS) or (FS) characters after
ZCZC and before the next format element
(i.e. ABC).
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲c̲o̲n̲d̲i̲t̲i̲o̲n̲s̲
- If the processor has not detected the sequence
"VZCZC" after the reception of 100 characters
following the previous "end-of-message"
sequence, the system shall send a warning
message to the supervisor indicating possible
garbling on the channel involved. The
characters received on that channel shall
be discarded by the processor until the
next "SOTF" sequence is detected.
When two valid "SOTF" sequences are received
over a channel without an intervening "end-of-transmission"
function, the incomplete message associated
with the first "SOTF", shall be rejected
to the message service position for further
action.
- Space or non-alphanumeric characters after
the ZCZC and before the next format element
(i.e. ABC).
b) F̲o̲r̲m̲a̲t̲ ̲e̲l̲e̲m̲e̲n̲t̲:̲ ̲A̲B̲C̲
The station and channel designator is expected
to be the designator assigned to that channel.
For any one station and channel designator the
transmission serial number (refer to c) shall either
be three or four digits, i.e. they will not be
intermingled on a specific channel. If the station
and channel designator is not the one associated
with the channel the message shall be queued for
message servicing.
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲d̲e̲v̲i̲a̲t̲i̲o̲n̲s̲
- a three letter sequence; this may contain
additional (LS) characters.
- spurious (LS) or (FS) characters between
the three letter sequence and the next
format element.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲c̲o̲n̲d̲i̲t̲i̲o̲n̲s̲
- three consecutive letters not being received
ignoring additional (LS) characters.
- no intervening characters after ABC and
before the next format element
- validation check on station and channel
designator not successful
c) F̲o̲r̲m̲a̲t̲ ̲e̲l̲e̲m̲e̲n̲t̲:̲ ̲(̲F̲S̲)̲ ̲(̲0̲)̲ ̲1̲2̲3̲ ̲(̲L̲S̲)̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲s̲
- Any three (four) digit sequence; this may
contain additional (FS) characters.
- Spurious (LS) or (FS) characters between
this and the next format element.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲s̲
- A three (four) digit sequence is not received
(additional (FS) characters not being counted).
- Non successful validation check on transmission
serial number (ref. SRS 3.2.2.1).
d) F̲o̲r̲m̲a̲t̲ ̲e̲l̲e̲m̲e̲n̲t̲:̲ ̲F̲r̲o̲m̲ ̲0̲ ̲t̲o̲ ̲5̲0̲ ̲a̲l̲p̲h̲a̲n̲u̲m̲e̲r̲i̲c̲ ̲c̲h̲a̲r̲a̲c̲t̲e̲r̲s̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲
Spurious (LS) or (FS) characters.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲c̲o̲n̲d̲i̲t̲i̲o̲n̲s̲
- More than 50 alphanumeric characters.
- Being in figures case at the end of this
element.
The detection of one or more space characters
will signify the end of this element.
e) F̲o̲r̲m̲a̲t̲ ̲e̲l̲e̲m̲e̲n̲t̲:̲ ̲5̲x̲s̲p̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲d̲e̲v̲i̲a̲t̲i̲o̲n̲
- Three or more space characters in sequence.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲
- None.
NOTE:
Single or a sequence of two space characters
followed by any other character shall cause
the message to be handled with the security
classification of FL4.
f) F̲o̲r̲m̲a̲t̲ ̲e̲l̲e̲m̲e̲n̲t̲:̲ ̲S̲e̲c̲u̲r̲i̲t̲y̲ ̲W̲a̲r̲n̲i̲n̲g̲ ̲P̲r̲o̲s̲i̲g̲n̲s̲ ̲(̲U̲U̲ ̲o̲r̲
̲H̲H̲)̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲
- This element need not be present.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲
- None.
NOTE:
If the security warning prosign is not
detectable or if there is any deviation
from the two (or four) specified two alpha
character sequences this shall cause the
message to be handled with the security
classification of FL4.
g) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲E̲O̲L̲F̲=̲(̲C̲R̲)̲(̲C̲R̲)̲(̲L̲F̲)̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲
Any sequence containing only the machine functions
(LF) and (cr) shall be accepted as a valid
"end-of-line" function provided the sequence
contains:
- At least one carriage return and one line
feed in either order.
- In total, not more than 20 machine functions.
- The system shall replace the erroneous
sequence with the correct "end-of-line"
function.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲
- Additional characters other than (LF),
(CR) or (LS).
3.1.4 G̲e̲n̲e̲r̲a̲t̲i̲o̲n̲
This line shall contain the elements a), b), c), e)
and g) as described in section 3.1.1. Elements b) and
c) shall be appropriate to the channel used for onward
transmission, inserted and checked automatically by
the system.
The format element f), security warning prosign, shall
be inserted automatically by the system in each outgoing
message.
3.2 P̲R̲E̲C̲E̲D̲E̲N̲C̲E̲ ̲A̲N̲D̲ ̲C̲A̲L̲L̲E̲D̲ ̲S̲T̲A̲T̲I̲O̲N̲S̲,̲ ̲F̲O̲R̲M̲A̲T̲ ̲L̲I̲N̲E̲ ̲2̲
3.2.1 A̲C̲P̲ ̲1̲2̲7̲
Format line 2, the "routing line" will comprise the
following format elements:
a) AA - the repeated precedence prosign: The repeated
prosigns are associated with the degrees of precedence
as follows:
D̲e̲s̲i̲g̲n̲a̲t̲i̲o̲n̲ D̲e̲g̲r̲e̲e̲ P̲r̲o̲s̲i̲n̲g̲
Flash Level 1 Z
Immediate Level 2 O
Priority Level 3 P
Routine Level 4 R
When ZZ is used, the sequence shall be preceded by
the bell signal (i.e. (FS)JJJJJSSSSS(LS)).
b) R̲o̲u̲t̲i̲n̲g̲ ̲I̲n̲d̲i̲c̲a̲t̲o̲r̲s̲.̲ Provision shall be made for
routing indicators constituted by groups of "four
to nine alpha-characters" preceded by a space character
and followed either by a space and another routing
indicator or an EOLF.
c) E̲O̲L̲F̲.̲ Each "printing line" of routing indicators
shall be terminated by an end-of-line function.
3.2.2 A̲l̲t̲e̲r̲n̲a̲t̲i̲v̲e̲s̲
a) 1) A̲C̲P̲ ̲1̲2̲7̲:̲ One Format Line 2 containing only
R...... series or U.... series RIs (routing
indicators).
2) A̲l̲t̲e̲r̲n̲a̲t̲i̲v̲e̲:̲ A Format Line 2a containing only
R.... series RIs and a Format Line 2b containing
only U.... series RIs.
3.2.3 R̲e̲c̲e̲p̲t̲i̲o̲n̲
Received messages shall contain in this format line
only Routing Indicators that are associated with the
receiving CAMPS.
a) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲R̲e̲p̲e̲a̲t̲e̲d̲ ̲P̲r̲e̲c̲e̲d̲e̲n̲c̲e̲ ̲P̲r̲o̲s̲i̲g̲n̲.̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲s̲:̲
- At least one of the characters in the first
sequence in the "letters case" of the form
XY(sp) found within the initial 20 characters
of the line is a valid precedence prosign
where X and Y are both alphabetic characters.
- If the sequence XY (sp) is detected and
either X nor Y is valid but the sequence
is preceded by the bell signal the message
shall be handled as of immediate precedence.
The bell signal shall be considered to
be present if a sequence of at least one
(FS) J is preceded or followed by one (FS)
S.
- Where X and Y are both valid, but different
then the highest precedence shall be selected.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲c̲o̲n̲d̲i̲t̲i̲o̲n̲s̲
- No sequence in letters case of the form
XY(sp) is found within the first 20 characters
of the format line.
- Bellsignal preceded with initial 20 characters.
b) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲(̲s̲p̲)̲(̲R̲I̲)̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲d̲e̲v̲i̲a̲t̲i̲o̲n̲
-
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲c̲o̲n̲d̲i̲t̲i̲o̲n̲s̲
- A letter sequence which is not one of the
set of RIs associated with the receiving
CAMPS.
- No letter sequence between elements a)
and c).
c) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲E̲O̲L̲F̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲
- See section 3.1.3.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲
- Additional characters other than (LF),
(cr) or (LS).
3.2.4 G̲e̲n̲e̲r̲a̲t̲i̲o̲n̲
This line shall contain the elements a), b), and c)
as described in section 3.2.1.
a) T̲h̲e̲ ̲r̲e̲p̲e̲a̲t̲e̲d̲ ̲p̲r̲e̲c̲e̲d̲e̲n̲c̲e̲ ̲p̲r̲o̲s̲i̲g̲n̲ shall be that specified
in relation to the ACTION addressee (INFO addressees
if no ACTION addressees specified) in the procedures
described in section 2.5 of CPS/230/ICD/0001. If
different precedences are indicated for ACTION
and INFORMATION addressees, separate messages shall
be generated provided separate routes are needed
for ACTION and INFO.
b) R̲o̲u̲t̲i̲n̲g̲ ̲I̲n̲d̲i̲c̲a̲t̲o̲r̲s̲ shall be those associated to
the addressees specified by use of the procedures
described in section 3.4.1.11 through 3.4.1.12
of CPS/230/ICD/0001, taking account of "XMT" addresses
where applicable. No characters other than those
composing the routing indicators and intervening
spaces shall be present in the line.
3.3 C̲A̲L̲L̲I̲N̲G̲ ̲S̲T̲A̲T̲I̲O̲N̲,̲ ̲F̲O̲R̲M̲A̲T̲ ̲L̲I̲N̲E̲ ̲3̲
3.3.1 A̲C̲P̲ ̲1̲2̲7̲
This format line includes the prosign "DE", the "routing
indicator" of the calling station, the "station serial
number" and the "filing time" of the message. It is
composed as follows:
a) D̲E̲(̲s̲p̲)̲:̲ A prosign indicating that the message was
prepared for transmission by the station whose
designator follows.
b) R̲o̲u̲t̲i̲n̲g̲ ̲I̲n̲d̲i̲c̲a̲t̲o̲r̲ ̲o̲f̲ ̲t̲h̲e̲ ̲C̲a̲l̲l̲i̲n̲g̲ ̲S̲t̲a̲t̲i̲o̲n̲:̲ ̲ See
section 3.2.1.(b). This sequence will be followed
by a space character.
c) (̲F̲S̲)̲N̲N̲N̲(̲N̲)̲(̲s̲p̲)̲o̲r̲(̲F̲S̲)̲N̲N̲N̲(̲L̲S̲)̲A̲(̲F̲S̲)̲(̲s̲p̲)̲:̲ The originating
"station serial number" consisting of three or
four digits and a space, or 3 numeric characters
followed by a single alpha character and a space.
d) N̲N̲N̲N̲N̲N̲N̲(̲L̲S̲)̲:̲ This will consists normally of a group
of seven digits: The Julian date (NNN) and the
time group (NNNN).
e) E̲O̲L̲F̲
3.3.2 A̲l̲t̲e̲r̲n̲a̲t̲i̲v̲e̲s̲
None.
3.3.3 R̲e̲c̲e̲p̲t̲i̲o̲n̲
This format line need not be always present. If this
format line is not found the message shall be directed
to the message service position for further handling.
The format element c) if present may be used in connection
with the Validation Function in Format Line 15.
a) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲D̲E̲(̲s̲p̲)̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲
- None
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲
- Any deviation from the prescribed form
if present.
b) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲(̲R̲I̲)̲(̲s̲p̲)̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲
- None
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲s̲
- This element is absent.
- This element contains less than 4 or more
than 9 alphabetic characters.
c) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲(̲F̲S̲)̲1̲2̲3̲(̲L̲S̲)̲A̲(̲F̲S̲)̲(̲s̲p̲)̲ ̲o̲r̲ ̲(̲F̲S̲)̲1̲2̲3̲(̲4̲)̲(̲s̲p̲)̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲s̲
- The station serial number not present.
(ASM)
- If present, the serial number need not
contain the sequence (LS)A(FS)
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲
- A three (four) digit sequence is not received
(additional (FS) characters not being counted.)
- Space or non-numeric characters,except
(LS) or (FS) characters between this and
the next format element.
- Refer to section 3.15.3 for validation
of station serial number.
d) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲J̲u̲l̲i̲a̲n̲ ̲d̲a̲t̲e̲ ̲a̲n̲d̲ ̲t̲i̲m̲e̲ ̲g̲r̲o̲u̲p̲ ̲(̲L̲S̲)̲
This element (e.g. 1671523) need not be checked
for validity.
e) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲E̲O̲L̲F̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲D̲e̲v̲i̲a̲t̲i̲o̲n̲
- Refer to section 3.1.3.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲C̲o̲n̲d̲i̲t̲i̲o̲n̲
- Additional Characters other than (LF),
(CR) or (LS).
3.3.4 G̲e̲n̲e̲r̲a̲t̲i̲o̲n̲
This line shall be composed of elements a), b), c),
d) and e) as specified in section 3.3.1.
1) T̲h̲e̲ ̲R̲o̲u̲t̲i̲n̲g̲ ̲I̲n̲d̲i̲c̲a̲t̲o̲r̲,̲ preceded by the sequence
"DE(sp)" shall be that appropriate to the originator.
2) T̲h̲e̲ ̲O̲r̲i̲g̲i̲n̲a̲t̲i̲n̲g̲ ̲S̲t̲a̲t̲i̲o̲n̲ ̲R̲e̲l̲e̲a̲s̲e̲ ̲N̲u̲m̲b̲e̲r̲ shall belong
to a series allocated by the system. Abbreviated
service messages shall be generated without Station
Serial Number.
3) T̲h̲e̲ ̲J̲u̲l̲i̲a̲n̲ ̲D̲a̲t̲e̲ ̲a̲n̲d̲ ̲T̲i̲m̲e̲ ̲G̲r̲o̲u̲p̲ ̲(̲f̲i̲l̲i̲n̲g̲ ̲t̲i̲m̲e̲)̲ shall
be the time of release of the message, automatically
generated by the system.
3.4 S̲E̲C̲U̲R̲I̲T̲Y̲ ̲A̲N̲D̲ ̲S̲P̲E̲C̲I̲A̲L̲ ̲H̲A̲N̲D̲L̲I̲N̲G̲ ̲D̲E̲S̲I̲G̲N̲A̲T̲O̲R̲S̲ ̲A̲N̲D̲ ̲T̲R̲A̲N̲S̲M̲I̲S̲S̲I̲O̲N̲
̲I̲N̲S̲T̲R̲U̲C̲T̲I̲O̲N̲,̲ ̲F̲O̲R̲M̲A̲T̲ ̲L̲I̲N̲E̲ ̲4̲ ̲
3.4.1 A̲C̲P̲ ̲1̲2̲7̲
This format line is composed as follows:
a) S̲e̲c̲u̲r̲i̲t̲y̲ ̲w̲a̲r̲n̲i̲n̲g̲ ̲o̲p̲e̲r̲a̲t̲i̲n̲g̲ ̲s̲i̲g̲n̲a̲l̲ ̲a̲n̲d̲ ̲r̲e̲p̲e̲a̲t̲e̲d̲
̲c̲l̲a̲s̲s̲i̲f̲i̲c̲a̲t̲i̲o̲n̲ ̲l̲e̲t̲t̲e̲r̲:̲ This format element is
mandatory and shall be one of the following sequences:
1) ZNR(SP)UUUUU indicating a NATO unclassified
message.
2) ZNY(SP) RRRRR indicating a NATO RESTRICTED
message
3) ZNY(SP)CCCCC indicating a NATO CONFIDENTIAL
message
4) ZNY(SP)SSSSS indicating a message classified
NATO SECRET
5) ZNY(SP)TTTTT indicating a message classified
COSMIC TOP SECRET
b) S̲p̲e̲c̲i̲a̲l̲ ̲H̲a̲n̲d̲l̲i̲n̲g̲ ̲d̲e̲s̲i̲g̲n̲a̲t̲i̲o̲n̲ ̲(̲F̲S̲)̲/̲(̲L̲S̲)̲X̲X̲X̲X̲X̲
This format element is optional and shall follow
element a without intervening characters.
X may be one of the letters L, Y, D, or P only.
If several are used they will be separated by
"(FS)/(LS)".
The special handling designators shall correspond
to the following special category warnings of format
line 12a.
LLLLL indicates ATOMAL
YYYYY indicates CRYPTO SECURITY
DDDDD indicates DATA MESSAGE
PPPPP indicates EXCLUSIVE
c) O̲t̲h̲e̲r̲ ̲S̲i̲g̲n̲a̲l̲s̲
1) This format element is optional. It shall be
preceded by a space or an end-of-line function.
The alphanumeric characters which may occur
after the space are groups of the form Z (X)(Y)(N)
or Q (X)(Y)(N) where (X) and (Y) and an additional
numerical character, which may or may not be
present, will be specified by the purchaser.
2) The number of different operating signals of
this form to be detected shall not exceed 10
and they shall occur in the f̲i̲r̲s̲t̲ ̲p̲r̲i̲n̲t̲i̲n̲g̲
̲l̲i̲n̲e̲ ̲o̲f̲ ̲t̲h̲i̲s̲ ̲f̲o̲r̲m̲a̲t̲ ̲l̲i̲n̲e̲.̲ Each group will
be followed by a space except the last group
on the printing line which shall be followed
by an EOLF. The following operating signal
of this group have been defined and is of relevance
to the handling of incoming messages:
G̲r̲o̲u̲p̲ E̲x̲p̲l̲a̲n̲a̲t̲i̲o̲n̲
ZGC No receipt required for a
FLASH message
3) Max. 12 other operating signals will require
any action to be taken by the system.
d) T̲r̲a̲n̲s̲m̲i̲s̲s̲i̲o̲n̲ ̲I̲n̲s̲t̲r̲u̲c̲t̲i̲o̲n̲s̲
Some messages may include transmission instructions
in this format line. These instructions shall commence
at the start of a new printing line and shall be
of the form "(RI O, (Sp)T(Sp)(RI 1)(Sp)(RI 2)(Sp)
......(Sp)(RI N)", where N can be from 1 to 5.
The RI O shall also appear in format line 2. Maximum
three such T-instruction lines may exist. The instruction
signifies that CAMPS related to RI O shall pass
the message on to the stations indicated by RI
1 through RI N. If RI O is repeated after the sequence
(Sp) T (Sp), this indicates internal distribution
a̲n̲d̲ onward relaying according to RI 2 through RI
N. In case of instruction "T" alone (no routing
indicators), the message shall be queued for message
servicing (before relaying).
e) E̲O̲L̲F̲.̲
3.4.2 A̲l̲t̲e̲r̲n̲a̲t̲i̲v̲e̲s̲
None.
3.4.3 R̲e̲c̲e̲p̲t̲i̲o̲n̲
This format line may consist of several printing lines.
a) F̲o̲r̲m̲a̲t̲ ̲e̲l̲e̲m̲e̲n̲t̲:̲ ̲ ̲S̲e̲c̲u̲r̲i̲t̲y̲ ̲w̲a̲r̲n̲i̲n̲g̲ ̲o̲p̲e̲r̲a̲t̲i̲n̲g̲ ̲s̲i̲g̲n̲a̲l̲
̲a̲n̲d̲ ̲s̲e̲c̲u̲r̲i̲t̲y̲ ̲c̲l̲a̲s̲s̲i̲f̲i̲c̲a̲t̲i̲o̲n̲ ̲l̲e̲t̲t̲e̲r̲s̲.
Refer to section 3.12.3 for validation of security
mismatch.
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲d̲e̲v̲i̲a̲t̲i̲o̲n̲
- Five alphabetic characters are detected
after the operating signal ZNR(Sp) or ZNY(Sp),
and at least 3 consecutive alphabetic characters
are valid characters.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲c̲o̲n̲d̲i̲t̲i̲o̲n̲
- Any deviation in the sequence ZNR(Sp) or
ZNY(Sp). This sequence should be detected
immediately following the end-of-line function
of format line 2 or format line 3.
b) F̲o̲r̲m̲a̲t̲ ̲e̲l̲e̲m̲e̲n̲t̲:̲ ̲S̲p̲e̲c̲i̲a̲l̲ ̲H̲a̲n̲d̲l̲i̲n̲g̲ ̲D̲e̲s̲i̲g̲n̲a̲t̲o̲r̲
Refer to section 3.12.3 for validation of security
mismatch.
There may be more than one special handling designator
per message. The same tolerances shall apply after
each acceptable designator is detected. The message
shall in this case be queued for the MDCO.
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲d̲e̲v̲i̲a̲t̲i̲o̲n̲
- Separation function "(FS)/(LS)" being present
and followed by a group of five alphabetic
characters in which at least 3 consecutive
alphabetic characters are identical and
valid.
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲c̲o̲n̲d̲i̲t̲i̲o̲n̲s̲
- No separation function but 3 or more consecutive
identical (valid or invalid) alphabetic
characters occur after the format element
(a) in this line
- Separation function followed by less than
3 identical valid alphabetic characters.
c) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲ ̲O̲t̲h̲e̲r̲ ̲S̲i̲g̲n̲a̲l̲s̲
1) All characters between format element (b) of
this line and the EOLF will be scanned for
recognisable operating signals.
2) Except for the sequence ZGC the message shall
be subject to no special processing when signals
of the type quoted in 3.4.1. (c) are detected.
d) F̲o̲r̲m̲a̲t̲ ̲E̲l̲e̲m̲e̲n̲t̲:̲ ̲T̲r̲a̲n̲s̲m̲i̲s̲s̲i̲o̲n̲ ̲I̲n̲s̲t̲r̲u̲c̲t̲i̲o̲n̲s̲
Refer to section 3.4.1.d) for correct sequence.
e) F̲o̲r̲m̲a̲t̲ ̲e̲l̲e̲m̲e̲n̲t̲:̲ ̲E̲O̲L̲F̲
1) A̲c̲c̲e̲p̲t̲a̲b̲l̲e̲ ̲d̲e̲v̲i̲a̲t̲i̲o̲n̲
- See section 3.1.3
2) R̲e̲j̲e̲c̲t̲a̲b̲l̲e̲ ̲c̲o̲n̲d̲i̲t̲i̲o̲n̲
- Additional characters other than (LF),(CR)
or (LS).
3.4.4 G̲e̲n̲e̲r̲a̲t̲i̲o̲n̲
a) This line shall contain the elements a,b,c,d and
e of sec. 3.4.1.
b) T̲h̲e̲ ̲s̲e̲c̲u̲r̲i̲t̲y̲ ̲w̲a̲r̲n̲i̲n̲g̲ ̲o̲p̲e̲r̲a̲t̲i̲n̲g̲ ̲s̲i̲g̲n̲a̲l̲ ̲a̲n̲d̲ ̲r̲e̲p̲e̲a̲t̲e̲d̲
̲c̲l̲a̲s̲s̲i̲f̲i̲c̲a̲t̲i̲o̲n̲ ̲l̲e̲t̲t̲e̲r̲ ̲f̲o̲l̲l̲o̲w̲e̲d̲ ̲b̲y̲ ̲s̲p̲e̲c̲i̲a̲l̲ ̲h̲a̲n̲d̲l̲i̲n̲g̲
̲d̲e̲s̲i̲g̲n̲a̲t̲o̲r̲ ̲(̲i̲f̲ ̲a̲p̲p̲l̲i̲c̲a̲b̲l̲e̲)̲ shall be that appropriate
to the entries made under 3.4.1.3 and 3.4.1.2 of
CPS/230/ICD/0001 respectively with due account
being taken of subsequent changes (editing).
c) O̲p̲e̲r̲a̲t̲i̲n̲g̲ ̲s̲i̲g̲n̲a̲l̲:̲ If the supervisor so directs,
this element shall be the sequence ZGC for FLASH
messages. Further operating signals shall be inserted
automatically by the system according to the entry
during preparation as specified in CPS/230/ICD/0001
section 3.4.1.4 and according to the rules in section
3.2.1.2.1.1.1.
d) T̲r̲a̲n̲s̲m̲i̲s̲s̲i̲o̲n̲ ̲I̲n̲s̲t̲r̲u̲c̲t̲i̲o̲n̲s̲ shall be left unchanged
in a message in connection with onward relaying.
