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Notes: CPS/ICD/004
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…07……00……00……00……00…4…0a……00……00…4…0b….…0b….…0f……1e……02……1e……05……1d……0b……1d……01……1d……07……1c……0c……1c…
…1b……09……1b……00……86…1 …02… …02… …02…
…02…CPS/ICD/004
…02…TDJ/840119…02……02…#
NICS TARE INTERFACE
…02…ISSUE 2.1…02…CAMPS
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
1 SCOPE ........................................
5
2 REFERENCE DOCUMENTS ..........................
5 to 6
2.1 ABBREVIATIONS ............................
6
3 ELECTRICAL INTERFACE .........................
6 to 17
3.1 LINE CHARACTERISTICS .....................
6
3.2 ELECTRICAL CHARACTERISTICS ...............
7
3.3 LOCAL CAMPS/NICS TARE I/F ................
8
3.3.1 Interchange Wires ....................
8
3.3.2 Connector Characteristics ............ 10
3.4 REMOTE CAMPS/NICS TARE I/F ............... 11
3.4.1 Interchange Wires .................... 11
3.4.2 Connector Characteristics ............ 13
3.5 CRYPTO EQUIPMENT (DOLCE) ................. 14
3.5.1 CAMPS Initiated Link Set-Up .......... 15
3.5.2 Manually Link Set-Up ................. 15
3.5.3 CAMPS Initiated Link Clear Down ...... 16
3.5.4 Manually Link Clear Down of Link
Failure .............................. 16
4 EDC LINK ACCESS PROTOCOL ..................... 18
to 19
5 TRAFFIC OF MESSAGES IN ACP 127 FORMAT ........ 20
to 36
5.1 GENERAL LAYOUT OF ABBREVIATED SERVICE
MESSAGES ................................. 20
5.2 FLASH MESSAGE RECEIPT .................... 21
5.2.1 Format of Outgoing Flash Receipt ..... 21
5.2.2 Format of Incoming Flash Receipt ..... 22
5.3 TRAFFIC CONTINUITY CHECK ................. 22
5.3.1 Outgoing Channel Continuity Message .. 22
5.3.2 Incoming Channel Continuity Message .. 22
5.4 CHANNEL NUMBER RESET ..................... 23
5.4.1 Incoming Channel ..................... 23
5.4.2 Outgoing Channel ..................... 24
5.5 CHANNEL CLOSING, OPENING AND TESTING ..... 24
5.5.1 General .............................. 24
5.5.1.1 Controlling Authority ............ 24
5.5.1.2 Definitions ...................... 25
5.5.1.3 Constraints ...................... 25
5.5.2 Incoming Channel Closing, Opening and
Testing .............................. 26
5.5.2.1 Incoming Channel Closing ......... 26
5.5.2.2 Incoming Channel Opening ......... 26
5.5.2.3 Incoming Channel Testing ......... 27
5.5.3 Outgoing Channel Closing, Opening and
Testing .............................. 28
5.5.3.1 Outgoing Channel Closing ......... 28
5.5.3.2 Outgoing Channel Opening ......... 29
5.5.3.3 Outgoing Channel Testing ......... 29
APPENDIX A ...................................... 37
to 39
1̲ ̲ ̲S̲C̲O̲P̲E̲
This document describes the interface between CAMPS
and NICS TARE either in a connection with a direct
link (local TARE) or with a crypto/modem link (remote
TARE). The interface protocols described are:
- Electrical interface
- Link control
- Message Traffic
2̲ ̲ ̲R̲E̲F̲E̲R̲E̲N̲C̲E̲ ̲D̲O̲C̲U̲M̲E̲N̲T̲S̲
1) System Requirements Specification
Doc. No. CPS/210/SYS/0001.
2) ACP 127 NATO Supp. 3 Procedures
Doc. No. CPS/230/ICD/0003.
3) CCITTs recommendation V24 and V28 for Interchange
Circuits.
4) Subsystem Specification for the TARE for the NICS
(vol. IV of IV), document no. 012, prepared by
LITTON DATA SYSTEMS.
2.1 A̲B̲B̲R̲E̲V̲I̲A̲T̲I̲O̲N̲S̲
ASM Abbreviated Service Message
TOF Time of Filing
EOLF End-Of-Line-Function
EOTF End-Of-Transmission-Function
MSUT Medium Speed User Terminal
RI Routing Indicator
SOM Start-of-message
SOTF Start-Of-Transmission-Function
SSN Station Serial Number
S & CD Station & Channel Designator
TI Transmission Identification
TSN Transmission Serial Number
3̲ ̲ ̲E̲L̲E̲C̲T̲R̲I̲C̲A̲L̲ ̲I̲N̲T̲E̲R̲F̲A̲C̲E̲
3.1 L̲I̲N̲E̲ ̲C̲H̲A̲R̲A̲C̲T̲E̲R̲I̲S̲T̲I̲C̲S̲
a) The baud rates of the lines are 600, 1200, or 2400
bps.
b) The interchange circuits between CAMPS and TARE
shall conform to CCITTs recommendation V24/V28.
V28 is modified as set out in section 3.2.
c) The transmission is synchronous full-duplex.
d) The transmisson is in blocks under the control
of the EDC protocol.
e) The character code is ITA No. 5 as described in
Appendix A.
f) Serial data transmission with odd parity.
3.2 E̲L̲E̲C̲T̲R̲I̲C̲A̲L̲ ̲C̲H̲A̲R̲A̲C̲T̲E̲R̲I̲S̲T̲I̲C̲S̲
The interchange circuits shall conform to CCITTs Recommendation
v28, modified as set out below.
a) The interface conditions shall be defined as those
existing at CAMPS External Circuit Connection Point.
b) The basic interface to the Send and Receive circuits
shall be polar current signalling at not greater
than one (1) milliamp.
c) The nominal voltage shall be positive and negative
6 volts when terminated into 6000 ohms.
d) The open circuit generator voltage shall not be
greater than positive or negative 10 volts.
e) The voltage, when terminated into a receiving load
of 6000 ohms plus or minus 1000 ohms, shall be
positive and negative 6 volts plus or minus 1 volt.
The ripple shall be less than 0.5% under normal
operating conditions. The positive and negative
polar voltages shall be balanced within 5%.
f) The maximum delivered current under conditions
of short circuit between any of the signalling
wires and any other or earth shall not exceed 100
miliamps.
g) The source impedance is not defined but shall be
so arranged that the defined interface conditions
are satisfied.
h) The load impedance shall be 6000 ohms plus or minus
1000 ohms.
i) The bias voltage seen at the receiving load input
terminals, when the input is open circuit, shall
not exceed 2 volts.
j) No damage shall occur when voltages of plus or
minus 30 volts are applied to the Send or Receive
input/output terminals.
k) The effective shunt capacitance to ground of any
load, measured at the interchange point, shall
not exceed 2500 picofarads.
l) Signalling convention to be used shall be:
1) A more negative voltage than -3 volts will
signify a telegraph "MARK" or control/timing
"OFF" and represent the binary ONE or condition
"Z".
2) A more positive voltage than +3 volts will
signify the telegraph "SPACE" or a control/timing
"ON" condition representing the binary Zero
or condition "A".
m) The region between +3 volts and -3 volts is defined
as the transition region. The signal state is not
defined when the voltage is in the transition region.
For pulse and status wires a power-off or disconnection
shall be interpreted as an "OFF" condition.
3.3 L̲O̲C̲A̲L̲ ̲C̲A̲M̲P̲S̲/̲N̲I̲C̲S̲ ̲T̲A̲R̲E̲ ̲I̲/̲F̲
3.3.1 I̲n̲t̲e̲r̲c̲h̲a̲n̲g̲e̲ ̲W̲i̲r̲e̲s̲
The interface wires shall follow the CCITTs V24 interface.
In accordance with CCITTs nomenclature, which is used
in the following, NICS TARE will be treated as Data
Terminal Equipment (DTE) and CAMPS will be treated
as Data Circuit-terminating Equipment (DCE).
The used circuits are:
(1) Signal ground (102)
(2) Transmitted data (103)
(3) Received data (104)
(4) Ready for sending (106)
(5) Data set ready (107)
(6) Transmitter signal element timing (114)
(7) Receiver signal element timing (115)
(8) Positive 6v
The use of the circuits are described below.
1) S̲i̲g̲n̲a̲l̲ ̲G̲r̲o̲u̲n̲d̲ ̲(̲1̲0̲2̲)̲
This is the common return.
2) T̲r̲a̲n̲s̲m̲i̲t̲t̲e̲d̲ ̲D̲a̲t̲a̲ ̲(̲1̲0̲3̲)̲
This is the data signals originated by the NICS
TARE to be transmitted to CAMPS. Traffic on this
line shall only be possible if circuits 106 and
107 are set to ON. NICS TARE will provide an outgoing
traffic bit stream synchronized with the transmitter
signal element timing signal.
3) R̲e̲c̲e̲i̲v̲e̲d̲ ̲D̲a̲t̲a̲ ̲(̲1̲0̲4̲)̲
This is the data signals sent from CAMPS and received
by NICS TARE. NICS TARE will accept an input traffic
bit stream synchronized with the receiver signal
element timing signal.
4) R̲e̲a̲d̲y̲ ̲f̲o̲r̲ ̲S̲e̲n̲d̲i̲n̲g̲ ̲(̲1̲0̲6̲)̲
This circuit will carry a control signal from CAMPS
indicating that CAMPS is prepared to receive data
from NICS TARE. CAMPS will set ready for sending
to ON when ready to recieve data from NICS TARE.
NICS TARE will not output data on circuit 103 when
the ready for sending signal is OFF.
5) D̲a̲t̲a̲ ̲S̲e̲t̲ ̲R̲e̲a̲d̲y̲ ̲(̲1̲0̲7̲)̲
This circuit will carry a control signal from CAMPS
indicating that CAMPS is operating correctly and
prepared to transmit data to NICS TARE. CAMPS will
set circuit 107 to ON when ready to operate. Circuit
107 will be in the OFF condition if CAMPS cannot
operate correctly.
6) T̲r̲a̲n̲s̲m̲i̲t̲t̲e̲r̲ ̲S̲i̲g̲n̲a̲l̲ ̲E̲l̲e̲m̲e̲n̲t̲ ̲T̲i̲m̲i̲n̲g̲ ̲(̲1̲1̲4̲)̲
This circuit will provide transmit clock signal
from CAMPS to NICS TARE in synchronization with
the transmitted data on circuit 103.
7) R̲e̲c̲e̲i̲v̲e̲r̲ ̲S̲i̲g̲n̲a̲l̲ ̲E̲l̲e̲m̲e̲n̲t̲ ̲T̲i̲m̲i̲n̲g̲ ̲(̲1̲1̲5̲)̲
This circuit will provide receive clock signal
from CAMPS to NICS TARE in synchronization with
the received data on circuit 104.
8) P̲o̲s̲i̲t̲i̲v̲e̲ ̲6̲ ̲v̲o̲l̲t̲
This circuit will be used for general purposes
such as line conditioning or indicator lamps. This
is not included in the CCITT defined interchange
circuits. The nominal voltage shall be positive
6 volt +/- 1 volt. The wire is sourced by CAMPS
with max. 5 milliamp.
3.3.2 C̲o̲n̲n̲e̲c̲t̲o̲r̲ ̲C̲h̲a̲r̲a̲c̲t̲e̲r̲i̲s̲t̲i̲c̲s̲
The connector is a 25-pin Cannon multiplug with characteristics
as described in International Standard ISO 2110.
The pin and interchange assignments are:
NICS TARE
CAMPS
̲ ̲D̲T̲E̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲D̲C̲E̲
̲ ̲
̲
102 Signal ground
pin 7 ------------------------------------- pin
7
103 Transmitted data
pin 2 ------------------------------------- pin
2
104 Received data
pin 3 ------------------------------------- pin
3
106 Ready for sending
pin 5 ------------------------------------- pin
5
107 Data set ready
pin 6 ------------------------------------- pin
6
114 Transmitter signal element timing
pin 15 ------------------------------------- pin
15
115 Receiver signal element timing
pin 17 ------------------------------------- pin
17
Positive 6v
pin 25 ------------------------------------- pin
25
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲
̲ ̲
̲ ̲
̲ ̲
3.4 R̲E̲M̲O̲T̲E̲ ̲C̲A̲M̲P̲S̲/̲N̲I̲C̲S̲ ̲T̲A̲R̲E̲ ̲I̲/̲F̲
3.4.1 I̲n̲t̲e̲r̲c̲h̲a̲n̲g̲e̲ ̲W̲i̲r̲e̲s̲
The interface wires shall follow the CCITTs V24 interface.
In accordance with CCITTs nomenclature, which is used
in the following both CAMPS and NICS TARE will be treated
as Data Terminal Equipment (DTE).
CAMPS shall interface to a crypto equipment (DOLCE)
using the following circuits:
(1) Signal ground (102)
(2) Transmitted data (103)
(3) Received data (104)
(4) Request to send (105)
(5) Ready for sending (106)
(6) Data set ready (107)
(7) Data terminal ready (108)
(8) Data channel received line signal detector (109)
(9) Transmitter signal element timing (114)
(10)Receiver signal element timing (115)
(11)Positive 6v
The use of the circuits are described below.
1) S̲i̲g̲n̲a̲l̲ ̲G̲r̲o̲u̲n̲d̲ ̲(̲1̲0̲2̲)̲
This is the common return.
2) T̲r̲a̲n̲s̲m̲i̲t̲t̲e̲d̲ ̲D̲a̲t̲a̲ ̲(̲1̲0̲3̲)̲
This is the data signals originated by the CAMPS
to be transmitted to NICS TARE. Traffic on this
line shall only be possible if circuits 106, 107
and 109 are set to ON. CAMPS will provide an outgoing
traffic bit stream synchronized with the transmitter
signal element timing signal.
3) R̲e̲c̲e̲i̲v̲e̲d̲ ̲D̲a̲t̲a̲ ̲(̲1̲0̲4̲)̲
This is the data signals sent from NICS TARE and
received by CAMPS. CAMPS will accept an input traffic
bit stream synchronized with the receiver signal
element timing signal.
4) R̲e̲q̲u̲e̲s̲t̲ ̲t̲o̲ ̲s̲e̲n̲d̲ ̲(̲1̲0̲5̲)̲
This circuit will carry a control signal from CAMPS
indicating that CAMPS is requesting to transmit
data. CAMPS will set circuits 105 to ON when requesting
to transmit data.
5) R̲e̲a̲d̲y̲ ̲f̲o̲r̲ ̲s̲e̲n̲d̲i̲n̲g̲ ̲(̲1̲0̲6̲)̲
This wire will carry a control signal from the
channel equipment to CAMPS indicating the channel's
preparedness to accept outgoing traffic from CAMPS.
CAMPS will not output data when the ready for sending
signal is OFF. When the ready for sending signal
is ON, CAMPS may output data on the transmitted
data circuit 103.
6) D̲a̲t̲a̲ ̲s̲e̲t̲ ̲r̲e̲a̲d̲y̲ ̲(̲1̲0̲7̲)̲
This circuit will carry a control signal from the
crypto indicating that the crypto/modem is ready
to operate. The crypto/modem equipment will set
circuit 107 to ON when it is ready to operate.
7) D̲a̲t̲a̲ ̲t̲e̲r̲m̲i̲n̲a̲l̲ ̲r̲e̲a̲d̲y̲ ̲(̲1̲0̲8̲)̲
This circuit will carry a control signal from CAMPS
indicating that CAMPS is ready to operate. CAMPS
will set circuit 108 to ON whenever it is ready
to transmit or receive data.
8) D̲a̲t̲a̲ ̲c̲h̲a̲n̲n̲e̲l̲ ̲r̲e̲c̲e̲i̲v̲e̲d̲ ̲l̲i̲n̲e̲ ̲s̲i̲g̲n̲a̲l̲ ̲d̲e̲t̲e̲c̲t̲o̲r̲ ̲(̲1̲0̲9̲)̲
A control signal sent from the channel equipment
to CAMPS indicating whether the channel is operating
correctly or not. This circuit will be set to ON
when the receive channel is operating correctly
and ready to receive data transmitted from NICS
TARE. The circuit 109 will be in OFF condition,
if the receive channel cannot accept data traffic.
9) T̲r̲a̲n̲s̲m̲i̲t̲t̲e̲r̲ ̲s̲i̲g̲n̲a̲l̲ ̲e̲l̲e̲m̲e̲n̲t̲ ̲t̲i̲m̲i̲n̲g̲ ̲(̲1̲1̲4̲)̲
This circuit will provide transmit clock signal
from the channel equipment to CAMPS in synchronization
with the transmitted data on circuit 103.
10) R̲e̲c̲e̲i̲v̲e̲r̲ ̲s̲i̲g̲n̲a̲l̲ ̲e̲l̲e̲m̲e̲n̲t̲ ̲t̲i̲m̲i̲n̲g̲ ̲(̲1̲1̲5̲)̲
This circuit will provide receive clock signal
from channel equipment to CAMPS in synchronization
with the received data on circuit 104.
11) P̲o̲s̲i̲t̲i̲v̲e̲ ̲6̲ ̲v̲o̲l̲t̲
This circuit will be used for general purposes
such as line conditioning or indicator lamps. This
is not included in the CCITT defined interchange
circuits. The nominal voltage shall be positive
6 volt +/- 1 volt. The wire is sourced by CAMPS
with max. 5 milliamp.
3.4.2 C̲o̲n̲n̲e̲c̲t̲o̲r̲ ̲C̲h̲a̲r̲a̲c̲t̲e̲r̲i̲s̲t̲i̲c̲s̲
The connector is a 25-pin Cannon multiplug with characteristics
as described in International Standard ISO 2110.
The pin and interchange circuits assignments between
CAMPS and crypto equipment (DOLCE) is as follows:
CAMPS
DOLCE
DTE
DCE
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
102 Signal ground
pin 7 -----------------------------------
103 Transmitted data
pin 2 -----------------------------------
104 Received data
pin 3 -----------------------------------
105 Request to send
pin 4 -----------------------------------
106 Ready for sending
pin 5 -----------------------------------
107 Data set ready
pin 6 -----------------------------------
108 Data terminal ready
pin 20 -----------------------------------
109 Data channel signal detector
pin 8 -----------------------------------
114 Transmitter signal element
timing
pin 15 -----------------------------------
115 Receiver signal element
timing
pin 17 -----------------------------------
Positive 6V
pin 25 -----------------------------------
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲
̲ ̲ ̲ ̲
̲
3.5 C̲R̲Y̲P̲T̲O̲ ̲E̲Q̲U̲I̲P̲M̲E̲N̲T̲ ̲(̲D̲O̲L̲C̲E̲)̲
CAMPS may interface to NICS TARE via crypto/modem equipments.
In the following is described the procedural actions
related to the electrical interface between CAMPS and
DOLCE.
CAMPS is the originating station and as such has the
responsibility to initiate link set-up and clear down
by turning circuit 105 to the ON/OFF condition.
The control of the DOLCE equipment is performed by
means of the interchange circuits 105, 106, and 109.
Circuit 105 is used to initiate link set-up and clear
down.
Circuit 106 indicates whether the link between CAMPS
and NICS TARE is functioning correctly.
Circuit 109 indicates whether the link between the
two modems is functioning correctly, permitting crypto
equipment to synchronize and key negotiate.
3.5.1 C̲A̲M̲P̲S̲ ̲I̲n̲i̲t̲i̲a̲t̲e̲d̲ ̲L̲i̲n̲k̲ ̲S̲e̲t̲-̲U̲p̲
After checking that circuit 106 and 109 are in the
OFF condition CAMPS can activate the synchronization
of the DOLCE by turning 105 to the ON condition. After
the link between the local and the remote crypto has
been established circuit 109 will turn to the ON condition
and a key negotiation and synchronization of the two
cryptoes will take place. Circuit 106 will turn to
the ON condition, when the synchronization has been
established and it will indicate a successful link
set-up. See the timing diagram in figure 3.5-1.
3.5.2 M̲a̲n̲u̲a̲l̲l̲y̲ ̲L̲i̲n̲k̲ ̲S̲e̲t̲-̲U̲p̲
If the circuits 105 and 106 are in the OFF condition
and circuit 109 is turned from the OFF to the ON condition,
it will indicate that a manually link set-up is going
on. When circuit 106 is turned to the ON condition
a link set-up has been established successfully and
CAMPS shall then turn circuit 105 to the ON condition.
3.5.3 C̲A̲M̲P̲S̲ ̲I̲n̲i̲t̲i̲a̲t̲e̲d̲ ̲L̲i̲n̲k̲ ̲C̲l̲e̲a̲r̲ ̲D̲o̲w̲n̲
When the circuits 105, 106, and 109 are in the ON condition
CAMPS can clear down the link by turning circuit 105
to the OFF condition. This will cause the local crypto
to generate a reset pulse and to turn circuit 106 OFF.
After the two modems have dropped the carrier, circuit
109 will be turned to the OFF condition. This indicates
that both cryptoes are in the standby position.
3.5.4 M̲a̲n̲u̲a̲l̲l̲y̲ ̲L̲i̲n̲k̲ ̲C̲l̲e̲a̲r̲ ̲D̲o̲w̲n̲ ̲o̲r̲ ̲L̲i̲n̲k̲ ̲F̲a̲i̲l̲u̲r̲e̲
If the circuits 105, 106, and 109 are in the ON condition
and one of the circuits 106 or 109 turns to the OFF
condition it will indicate a link failure. Detection
of circuit 109 going from ON to OFF will indicate that
a data-line error has occurrred. Detection of circuit
106 going from ON to OFF will indicate that the crypto
is mal-functioning.
A link clear down is indicated, if boths circuits 106
and 109 are turned to the OFF condition.
CAMPS shall turn circuit 105 to OFF automatically if
requested or necessary (e.g. change of crypto key).
TIMING DIAGRAM FOR LINK SET-UP…01…INITIATED BY CAMPS…01…FIGURE 3.5-1
4̲ ̲ ̲E̲D̲C̲ ̲L̲I̲N̲K̲ ̲A̲C̲C̲E̲S̲S̲ ̲P̲R̲O̲T̲O̲C̲O̲L̲
This paragraph defines the EDC link protocol for CAMPS/NICS
TARE interface. The protocol description is given in
the document:
"TARE synchronous channel protocol performance specifications",
Document no. 177000-600,version F, dated 29 June 1979,
updated with DCN G9 of 1 May 1981.
Only paragraphs describing synchronous full-duplex
operations in the relation TARE to MSUT are subject
for this ICD. The relevant sections are:
Section 30.1
Section 30.4
Section 30.6 except 30.6.2
A short description of the sections are given below:
3̲0̲.̲1̲ ̲I̲n̲t̲r̲o̲d̲u̲c̲t̲i̲o̲n̲
The document defines the EDC protocol for synchronous
full-duplex operation in the relation TARE to MSUT.
The EDC protocol is accomplished by block error detection
and error correction by block retransmission.
3̲0̲.̲4̲ ̲ ̲E̲D̲C̲ ̲P̲r̲o̲t̲o̲c̲o̲l̲ ̲D̲e̲f̲i̲n̲i̲t̲i̲o̲n̲ ̲a̲n̲d̲ ̲O̲p̲e̲r̲a̲t̲i̲o̲n̲
The section defines the data blocks as they appear
on the channel. The format of the data blocks contains
two synchronization characters, two control characters,
a type character, a block identification character,
a variable field and a character redundancy check field.
The operation of the EDC protocol is described under
the headings:
- Initialization/restart
- Sequenced block receive processing
- Non-sequenced block receive processing
- Transmit processing
- Timeouts and counters
- Traffic regulation
- Unrecoverable errors
3̲0̲.̲6̲ ̲E̲x̲a̲m̲p̲l̲e̲s̲ ̲o̲f̲ ̲E̲D̲C̲ ̲P̲r̲o̲t̲o̲c̲o̲l̲ ̲O̲p̲e̲r̲a̲t̲i̲o̲n̲
A number of representative examples of communication
using the EDC protocol are presented.
5̲ ̲ ̲T̲R̲A̲F̲F̲I̲C̲ ̲O̲F̲ ̲M̲E̲S̲S̲A̲G̲E̲S̲ ̲I̲N̲ ̲A̲C̲P̲ ̲1̲2̲7̲ ̲F̲O̲R̲M̲A̲T̲
Message traffic transferred via the CAMPS/NICS TARE
interface shall follow the procedures laid down in
document CPS/230/ICD/0003, "ACP 127 NATO Supp. 3 Procedures".
In the following section the formats and procedures
for automatic message traffic control are described,
such as:
- Receipt of FLASH Messages
- Traffic Continuity Check
- Channel Number Reset
- Channel Opening/Closing
These control messages are of the type Abbreviated
Service Messages (ASM), which in general are treated
by the supervisor, but those listed above are automatically
generated/analyzed by CAMPS.
5.1 G̲E̲N̲E̲R̲A̲L̲ ̲L̲A̲Y̲O̲U̲T̲ ̲O̲F̲ ̲A̲B̲B̲R̲E̲V̲I̲A̲T̲E̲D̲ ̲S̲E̲R̲V̲I̲C̲E̲ ̲M̲E̲S̲S̲A̲G̲E̲S̲
Abbreviated Service Message formats will contain the
ACP 127 message format lines 1, 2, 3, 4, 12g, 16 and
possibly 15. The ASM described in the sections have
the following general layout:
FL 1 VZCZC(TI)(5xsp)UU(EOLF)
FL 2 (XX)(sp)(TO RI)(EOLF)
FL 3 DE(sp)(FROM RI)(sp)(SSN)(sp)(TOF)(EOLF)
FL 4 ZNR(sp)UUUUU(EOLF)
FL 12g (Text)
FL 16 (EOTF)
Where:
TI is the station and channel designator (3
characters) plus the channel serial number
(3 or 4 digits)
XX is the repeated precedence prosign
"TO RI" is the Routing Indicator of the receiver
station
"FROM RI" is the Routing Indicator of the transmitter
station
SSN is the originating station serial number.
CAMPS will not generate a SSN when transmitting
an ASM. When receiving an ASM the SSN is
optional.
TOF is the Julian data (NNN) and time group
(NNNN). (Time of filing).
"Text" is format text
EOLF is two carriage return, line feed
EOTF is two carriage return, eight line feeds,
end-of-message indicator (NNNN) and twelve
letter shift characters.
5.2 F̲L̲A̲S̲H̲ ̲M̲E̲S̲S̲A̲G̲E̲ ̲R̲E̲C̲E̲I̲P̲T̲
For transmission of an outgoing message or for reception
of an incoming message both with precedence FLASH,
the system shall respectively receive or send a receipt
message.
The procedures shall be as described in the CPS/210/SYS/0001
section 3.2.1.6.4 and section 3.2.2.4.
5.2.1 F̲o̲r̲m̲a̲t̲ ̲o̲f̲ ̲O̲u̲t̲g̲o̲i̲n̲g̲ ̲F̲L̲A̲S̲H̲ ̲R̲E̲C̲E̲I̲P̲T̲
The format of the Flash Receipt message shall be:
VZCZC(TI)(5xsp)UU(EOLF)
OO(sp)(NICS TARE RI)(EOLF)
DE(sp)(CAMPS RI)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
R(sp)Z(sp)(TI of FLASH Message)(EOLF)
(EOTF)
5.2.2 F̲o̲r̲m̲a̲t̲ ̲o̲f̲ ̲I̲n̲c̲o̲m̲i̲n̲g̲ ̲F̲L̲A̲S̲H̲ ̲R̲E̲C̲E̲I̲P̲T̲
The format of the receipt message shall be:
VZCZC(TI)(5xsp)UU(EOLF)
OO(sp)(CAMPS RI)(EOLF)
DE(sp)(NICS TARE RI)(sp)(SSN)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
R(sp)Z(sp)(TI of FLASH Message)(EOLF)
(SSN)(EOLF)
(EOTF)
5.3 T̲R̲A̲F̲F̲I̲C̲ ̲C̲O̲N̲T̲I̲N̲U̲I̲T̲Y̲ ̲C̲H̲E̲C̲K̲
CAMPS shall on each outgoing open channel transmit
to NICS TARE a channel continuity message.
On each incoming open channel CAMPS shall expect a
channel continuity message from NICS TARE.
5.3.1 O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲C̲o̲n̲t̲i̲n̲u̲i̲t̲y̲ ̲M̲e̲s̲s̲a̲g̲e̲
The format of the channel continuity message shall
be:
VZCZC(TI)(5xsp)UU(EOLF)
OO(sp)(NICS TARE RI)(EOLF)
DE(sp)(CAMPS RI)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
CHANNEL CHECK(EOLF)
(EOTF)
The channel continuity message shall be transmitted
every 5 minutes counted from (EOTF) of the last transmitted
message if specified to do so by the supervisor.
5.3.2 I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲C̲o̲n̲t̲i̲n̲u̲i̲t̲y̲ ̲M̲e̲s̲s̲a̲g̲e̲
The format of the channel continuity message shall
be:
VZCZC(TI)(5xsp)UU(EOLF)
OO(sp)(CAMPS RI)(EOLF)
DE(sp)(NICS TARE RI)(sp)(SSN)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
CHANNEL CHECK(EOLF)
(EOTF)
An incoming channel continuity message shall not be
forwarded to the supervisor.
CAMPS shall expect a valid SOM during a period of 6
minutes from the time of receipt of the (EOTF) of the
last received message on that channel if specified
to do so by the supervisor.
After reception CAMPS shall reset the time counter.
If no message is received within the valid time period,
then a warning shall be issued to the supervisor.
5.4 R̲E̲S̲E̲T̲ ̲O̲F̲ ̲C̲H̲A̲N̲N̲E̲L̲ ̲A̲C̲C̲O̲U̲N̲T̲I̲N̲G̲
Incoming and outgoing is as seen from CAMPS.
5.4.1 C̲h̲a̲n̲n̲e̲l̲ ̲N̲u̲m̲b̲e̲r̲ ̲R̲e̲s̲e̲t̲
Channel number reset for incoming channels and outgoing
channels are decoupled.
5.4.1.1 I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲
CAMPS shall at any time of the day reset the TSN counter
to one directly after the receipt of a message with
TSN equal to one.
5.4.1.2 O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲
CAMPS shall reset the TSN counter for outgoing channels
at 23,59 if so specified by the supervisor. The first
transmitted message after 23,59 shall be assigned TSN
equal to one.
5.4.2 C̲h̲a̲n̲n̲e̲l̲ ̲A̲c̲c̲o̲u̲n̲t̲i̲n̲g̲ ̲M̲e̲s̲s̲a̲g̲e̲
The channel accounting message is a ZID abbreviated
service message with the following layout:
VZCZC(TI)(5 x sp)UU(EOLF)
RR(sp)(TO RI)(EOLF)
DE(sp)(FROM RI)(sp)(SSN)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
ZID(TI of the last transmitted/received message)
|(SSN)(EOLF)
(EOTF)
5.4.2.1 I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲
On receipt of a ZID ASM CAMPS shall check the TI (channel
designator + TSN) in format line 12g with the TI of
the last message sent prior to the reset. If the TI
check fails, a warning report will be forwarded to
the supervisor.
If the ZID ASM contains two TI's in format line 12g
CAMPS shall check both TI's.
All ZID ASMs shall be forwarded to the supervisor's
printer.
5.4.2.2 O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲
CAMPS shall on receipt of any message with TSN equal
to one (refer to section 5.5.1.1) automatically transmit
a ZID ASM containing the TI of the last message received
prior to the reset.
5.5 C̲H̲A̲N̲N̲E̲L̲ ̲C̲L̲O̲S̲I̲N̲G̲,̲ ̲O̲P̲E̲N̲I̲N̲G̲ ̲A̲N̲D̲ ̲T̲E̲S̲T̲I̲N̲G̲
It shall be possible to close, (re-) open and test
any channel either by initiation of CAMPS or by NICS
TARE. The sequence is specified for incoming and outgoing
channels, where incoming and outgoing is defined as
seen from CAMPS.
For message sequence see the examples in fig. 5.5-1
to 5.5-6, where channel 1 is the CAMPS incoming and
channel 2 is the corresponding CAMPS outgoing channel
from and to NICS TARE.
The figures show the channel closing, opening and testing
sequences in 6 separate and independent CAMPS actions.
5.5.1 G̲e̲n̲e̲r̲a̲l̲
5.5.1.1 C̲o̲n̲t̲r̲o̲l̲l̲i̲n̲g̲ ̲A̲u̲t̲h̲o̲r̲i̲t̲y̲
The CAMPS system shall be responsible for closing,
opening and testing of outgoing channels only (Initiated
by the distant station).
The Supervisor has the responsibility for initiating
opening and closing of incoming channels only.
In order to handle physical connection and disconnection:
- The supervisor has the facility at his discretion
to disconnect the circuit prior to physical disconnect.
- After the physical connection of the circuit by
the technician the supervisor can initiate the
opening of the channel.
5.5.1.2 D̲e̲f̲i̲n̲i̲t̲i̲o̲n̲
A connection to a NICS TARE consists always of a pair
of channels, i.e. corresponding outgoing and incoming
channels.
A channel shall be considered to be closed when the
channel status in the Channel Control Table is set
to "closed" condition.
A channel shall be considered to be opened when the
channel status in the Channel Control Table is reset
from "Closed" condition.
An incoming channel is considered under test condition
covered by the time starting with the transmission
of a QRV ASM and transmission of a ZBZ5 ASM on the
corresponding outgoing channel. An outgoing channel
is considered under test condition covered by the time
starting with the receipt of a QRV ASM and the receipt
of a ZBZ4 or ZBZ5 ASM on the corresponding incoming
channel.
5.5.1.3 C̲o̲n̲s̲t̲r̲a̲i̲n̲t̲s̲
Automatic detection and recognition of special abbreviated
service messages will be limited to detection and check
of the operating prosign only except for the INT ZBZ
ASM, where the test text also will be validated.
Channel closing, opening and testing ASM shall not
change the procedure for the serial number generation
on outgoing channel and the serial number checking
on incoming channels.
5.5.2 I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲C̲l̲o̲s̲i̲n̲g̲,̲ ̲O̲p̲e̲n̲i̲n̲g̲ ̲a̲n̲d̲ ̲T̲e̲s̲t̲i̲n̲g̲
5.5.2.1 I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲C̲l̲o̲s̲i̲n̲g̲
The Supervisor shall initiate the automatic generation
of a QRT ASM for transmission on the corresponding
outgoing channel.
CAMPS shall automatically set an incoming channel "closed"
when on the correspondent outgoing channel a QRT ASM
is transmitted. All later arriving messages will be
processed as the channel was open and a warning report
will, however, be forwarded to the supervisor.
Format of the QRT ASM
VZCZC(TI)(5xsp)UU(EOLF)
OO(sp)(NICS TARE RI)(EOLF)
DE(sp)(CAMPS RI)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
QRT(sp)(S&CD)(sp)(9xA)(EOLF)
(EOTF)
Note: (9xA) implies up to 9 character close channel
amplifier.
5.5.2.2 I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲O̲p̲e̲n̲i̲n̲g̲
The Supervisor shall initiate the automatic generation
of an QRV ASM on the corresponding outgoing channel.
Format of the QRV ASM
VZCZC(TI)(5xsp)UU(EOLF)
RR(sp)(NICS TARE RI)(EOLF)
DE(sp)(CAMPS RI)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
QRV(sp)(S&CD)(EOLF)
(EOTF)
CAMPS shall automatically reset the incoming channel
from "closed" condition, when on the corresponding
outgoing channel a QRV ASM is transmitted.
All messages received on the (re-) opened incoming
channel shall be checked as specified in the SRS para.
3.2.2.1.
5.5.2.3 I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲T̲e̲s̲t̲i̲n̲g̲
After transmission of the QRV ASM as specified above,
Camps may receive a TEST MESSAGE (INT ZBZ ASM)
Format of the TEST MESSAGE
VZCZC(TI)(5xsp)UU(EOLF)
RR(sp)(CAMPS RI)(EOLF)
DE(sp)(NICS TARE RI)(sp)(SSN)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
TEST(sp)THE(sp)QUICK(sp)BROWN(sp)FOX(sp)JUMPS(sp)OVER(sp)THE(sp)LAZY(sp)DOG(EOLF)
1234567890(sp)*U*U*U*U*U*U*U*U*U*U*U*U(EOLF)
INT(sp)ZBZ(EOLF)
(SSN)(EOLF)
(EOTF)
CAMPS shall automatically analyze the TEST MESSAGE
and, depending on the quality of the incoming test,
respond as follows:
a) T̲e̲s̲t̲ ̲M̲e̲s̲s̲a̲g̲e̲ ̲C̲o̲r̲r̲e̲c̲t̲
- Automatic generation and transmission of a
ZBZ5 ASM
b) T̲e̲s̲t̲ ̲M̲e̲s̲s̲a̲g̲e̲ ̲5̲%̲ ̲o̲r̲ ̲L̲e̲s̲s̲ ̲G̲a̲r̲b̲l̲e̲d̲
- Automatic generation and transmission of a
ZBZ4 when 5% or less of characters are corrupt.
This is equivalent to 8 characters in standard
test text. The first word "TEST" must not include
corrupted characters.
c) T̲e̲s̲t̲ ̲M̲e̲s̲s̲a̲g̲e̲ ̲G̲a̲r̲b̲l̲e̲d̲
- Warning report to Supervisor.
- Transmission of ZBZ1 ASM
- Set incoming channel "closed".
The re-opening of the channel shall start again
with the generation of a QRV ASM, initiated by
the supervisor.
Format of a ZBZ(N) ASM
VZCZC(TI)(5xsp)UU(EOLF)
RR(sp)(NICS TARE RI)(EOLF)
DE(sp)(CAMPS RI)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
ZBZ(N)(EOLF)
(EOTF)
5.5.3 O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲C̲l̲o̲s̲i̲n̲g̲,̲ ̲O̲p̲e̲n̲i̲n̲g̲ ̲a̲n̲d̲ ̲T̲e̲s̲t̲i̲n̲g̲
5.5.3.1 O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲C̲l̲o̲s̲i̲n̲g̲
CAMPS shall automatically set an outgoing channel "closed"
when a QRT ASM is detected on the corresponding incoming
channel, and shall forward a report to the supervisor.
CAMPS shall not transmit messages on a closed channel,
except for QRV, QRT and ZBZ(N) messages.
Format of the QRT ASM
VZCZC(TI)(5xsp)UU(EOLF)
OO(sp)(CAMPS RI)(EOLF)
DE(sp)(NICS TARE RI)(sp)(SSN)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
QRT(sp)(S&CD)(sp)(9xA)(EOLF)
(SSN)(EOLF)
(EOTF)
Note: (9xA) implies up to 9 character close channel
amplifier.
5.5.3.2 O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲O̲p̲e̲n̲i̲n̲g̲
CAMPS shall automatically reset a "closed" outgoing
channel when a QRV ASM is detected on the corresponding
incoming channel, and forward a report to the Supervisor.
Format of the QRV ASM
VZCZC(TI)(5xsp)UU(EOLF)
RR(sp)(CAMPS RI)(EOLF)
DE(sp)(NICS TARE RI)(sp)(SSN)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
QRV(sp)(S&CD)(EOLF)
(SSN)(EOLF)
(EOTF)
5.5.3.3 O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲T̲e̲s̲t̲i̲n̲g̲
After the receipt of the QRV ASM as specified above,
CAMPS shall automatically generate and transmit a TEST
MESSAGE (INT ZBZ ASM) on the corresponding outgoing
channel, and shall forward a report to the supervisor.
Format of the TEST MESSAGE
VZCZC(TI)(5xsp)UU(EOLF)
RR(sp)(NICS TARE RI)(EOLF)
DE(sp)(CAMPS RI)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
TEST(sp)THE(sp)QUICK(sp)BROWN(sp)FOX(sp)JUMPS(sp)OVER(sp)THE(sp)LAZY(sp)DOG(sp)(EOLF)
1234567890(sp)*U*U*U*U*U*U*U*U*U*U*U*U(EOLF)
INT(sp)ZBZ(EOLF)
(EOTF)
After transmission of the TEST MESSAGE, CAMPS may receive
an ZBZ(N) ASM on the corresponding incoming channel,
where (N) is a numerical suffix (1 to 5), indicating
the printing acceptability of the test. The incoming
ZBZ(N) ASM indicates one out of two possible conditions:
a) I̲n̲c̲o̲m̲i̲n̲g̲ ̲Z̲B̲Z̲4̲ ̲o̲r̲ ̲Z̲B̲Z̲5̲ ̲(̲T̲E̲S̲T̲ ̲C̲O̲R̲R̲E̲C̲T̲)̲
b) I̲n̲c̲o̲m̲i̲n̲g̲ ̲Z̲B̲Z̲1̲,̲ ̲2̲ ̲o̲r̲ ̲3̲ ̲A̲S̲M̲ ̲(̲T̲E̲S̲T̲ ̲G̲A̲R̲B̲L̲E̲D̲)̲
- Warning report to Supervisor.
- Set outgoing channel "closed"
- Stop transmission.
The re-opening of the channel shall start again
with the receipt of a QRV ASM.
Format of a ZBZ(N) ASM
VZCZC(TI)(5xsp)UU(EOLF)
RR(sp)(CAMPS RI)(EOLF)
DE(sp)(NICS TARE RI)(sp)(SSN)(sp)(TOF)(EOLF)
ZNR(sp)UUUUU(EOLF)
ZBZ(N)(EOLF)
(SSN)(EOLF)
(EOTF)
I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲C̲l̲o̲s̲i̲n̲g̲
CAMPS NICS TARE
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ channel 1
̲s̲t̲a̲t̲u̲s̲ ̲1̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
closed
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ incoming
QRT ASM channel 2
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
outgoing
1) Supervisor initiate close of incoming channel.
2) System transmit QRT ASM on the outgoing channel
and set channel status to "closed" for incoming
channel.
Figure 5.5-1
I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲O̲p̲e̲n̲i̲n̲g̲
CAMPS NICS TARE
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ channel 1
̲s̲t̲a̲t̲u̲s̲ ̲1̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
open
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ incoming
QRV ASM channel 2
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
outgoing
1) Supervisor initiate opening of incoming channel.
2) System transmit QRV ASM on the outgoing channel
and reset channel status to "open" for incoming
channel.
Figure 5.5-2
I̲n̲c̲o̲m̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲T̲e̲s̲t̲i̲n̲g̲
CAMPS NICS TARE
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
status
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ INT ZBZ ASM
closed/
open
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
ZBZ(N) ASM ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
1. When detecting INT ZBZ ASM the system shall analyze
the test message.
2. Test message ok:
----------------
System shall transmit ZBZ5 ASM.
Test message 5% or less garbled:
--------------------------------
System shall transmit ZBZ4 ASM.
Test message garbled:
---------------------
System shall transmit ZBZ1 ASM, set the incoming
channel to closed condition and send a warning
report to the supervisor.
Figure 5.5-3
O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲C̲l̲o̲s̲i̲n̲g̲
CAMPS NICS TARE
channel 1
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ QRT ASM
incoming
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲s̲t̲a̲t̲u̲s̲ ̲2̲ ̲ channel 2
closed ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
outgoing
1) When detecting a QRT on an incoming channel the
system shall set the channel status to "closed"
for the corresponding outgoing channel.
2) Stop transmission on the closed outgoing channel.
3) Report the event to the supervisor.
Figure 5.5-4
O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲O̲p̲e̲n̲i̲n̲g̲
CAMPS NICS TARE
channel 1
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ QRV ASM
incoming
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲s̲t̲a̲t̲u̲s̲ ̲2̲ ̲ channel 2
open ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
outgoing
INT ZBZ ASM
1) When detecting a QRV on an incoming channel the
system shall set the channel status to "open" for
the corresponding outgoing channel.
2) The system shall transmit an INT ZBZ ASM on the
outgoing channel.
3) Report the event to the supervisor.
Figure 5.5-5
O̲u̲t̲g̲o̲i̲n̲g̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲T̲e̲s̲t̲i̲n̲g̲
CAMPS NICS TARE
channel 1
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ZBZ(N) ASM
incoming
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ channel 2
̲s̲t̲a̲t̲u̲s̲ ̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
closed/
open
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ outgoing
1) When detecting a ZBZ(N) ASM the system shall act
in accordance with the numeric suffix N.
2) N equal to 4 or 5:
Incoming channel is OK.
N equal to 1, 2, or 3:
The system shall set outgoing channel status to
"closed", stop the transmission and send a warning
report to the supervisor.
Figure 5.5-6
A̲P̲P̲E̲N̲D̲I̲X̲ ̲A̲
…01…NATO 7-bit Code Table
NATO 7-BIT CODE TABLE…01…(BASED ON THE ISO/CCITT INTERNATIONAL ALPHABET NO.
5)
N̲O̲T̲E̲S̲ ̲F̲O̲R̲ ̲T̲A̲B̲L̲E̲
1. The use of national characters is prohibited for
NATO use.
2. The use of this character as "New Line" is prohibited.
3. This character is used for the graphical symbol
indicating "Overline" or the "Tilde".
4. Positions 1/1, 1/2, 1/3, and 1/4 have the significance
respectively of:
a) Start reader device
b) Start recorder device
c) Stop reader device
d) Stop recorder device
5) The graphics in positions 2/2, 2/7, and 5/14 have
respectively the significance of "Quotation Mark",
"Apostrophe", and "Upward Arrow". However, these
characters take on the significance of the diacritical
signs "Diaeresis", "Acute Accent" and "Circumflex
Accent" when they follow the "Backspace" character.
6) Position 2/3 may be used as "end of message validation
function".
