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⟦9a5f13f6d⟧ Wang Wps File
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Names: »0774A «
Derivation
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SHAPE
Purchasing and Contracting Office
Communications Implementation Branch
B-7010 SHAPE
B̲e̲l̲g̲i̲u̲m̲
Att.: Mr. Paul F. Shey,
S̲H̲A̲P̲E̲ ̲C̲o̲n̲t̲r̲a̲c̲t̲i̲n̲g̲ ̲O̲f̲f̲i̲c̲e̲r̲ GJ/vhn/LET/0102
1981-03-27
cc.: Lt. Col. Manfred Stoltz,
C̲A̲M̲P̲S̲ ̲P̲r̲o̲g̲r̲a̲m̲ ̲M̲a̲n̲a̲g̲e̲r̲
Gentlemen,
S̲u̲b̲j̲e̲c̲t̲:̲ ̲N̲I̲C̲S̲ ̲T̲A̲R̲E̲ ̲I̲n̲t̲e̲r̲f̲a̲c̲e̲,̲ ̲D̲o̲c̲u̲m̲e̲n̲t̲ ̲C̲P̲S̲/̲I̲C̲D̲/̲0̲0̲4̲,̲ ̲i̲s̲s̲u̲e̲
̲1̲
R̲e̲f̲.̲:̲ ̲C̲A̲M̲P̲S̲ ̲L̲o̲g̲ ̲N̲o̲.̲ ̲1̲1̲9̲,̲ ̲d̲a̲t̲e̲d̲ ̲4̲t̲h̲ ̲F̲e̲b̲r̲u̲a̲r̲y̲ ̲1̲9̲8̲1̲
a) We enclose Christian Rovsing A/S's answers to referenced
telex concerning comments to the NICS TARE interface.
DN1 Accepted "authorised by Mr. Woodcock" will
be deleted.
DN2 Accepted "Data channel received line signal
detector (109)" will be changed to
read "Data set ready (107)".
DN3 Not accepted It would have been convenient if
CAMPS only had to have one interface
implementation to NICS TARE. But
NICS TARE is only able to act as
a Data Terminal Equipment (DTE).
Therefore, CAMPS is required to act
as a Data Circuit-terminating Equipment
(DCE) (i.e. among other things provide
transmit and receive clock) when
a direct link between CAMPS and NICS
TARE is used.
When a crypto/modem link is used,
both CAMPS and NICS TARE act as a
DTE and the modem as a DCE (i.e.
the clock is generated by the modem).
Therefore, CR prefer to have to distinct
the description.
DN4 Accepted "circuit 106 is" will be changed
to read "circuits 106 and 107 are".
DN5 Clarify Not understood. Please clarify what
"alarm condition" means.
DN6 Accepted Section 3.3.1,5) will be rewritten
to read:
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 send data to
NICS TARE. Circuit 107 will be in
the OFF condition if CAMPS cannot
operate correctly.
DN7 Accepted Section 3.3.2 will be updated as
follows:
a) "(6) Data set ready (107)" will
be added as a new circuit.
b) in section 3.3.2,2): "circuit
106 is" will be changed to read
"circuits 106 and 109 are."
c) The following new section will
be added:
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.
d) section 3.3.2,x) will be deleted.
DN8 Accepted See DN7 for updates to section 3.3.2.
The updates to section 3.4.2 and
3.5 are provided by H/W manager Bjarne
Berthold. The updates are based on
the crypto equipment information
delivered by SHAPE (CAMPS log no.
60).
Section 3.4.2 and section 3.5 will
be deleted and replaced with the
following:
3.4.2 I̲n̲ ̲C̲a̲s̲e̲ ̲o̲f̲ ̲R̲e̲m̲o̲t̲e̲ ̲C̲A̲M̲P̲S̲/̲N̲I̲C̲S̲ ̲T̲A̲R̲E̲
̲I̲n̲t̲e̲r̲f̲a̲c̲e̲
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
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲
̲ ̲ ̲ ̲
̲
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.
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 crypto/modem
is functioning correctly.
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 ̲o̲r̲ ̲R̲e̲m̲o̲t̲e̲ ̲I̲n̲i̲t̲i̲a̲t̲e̲d̲ ̲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 or remote initiated 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 reset.
3.5.4 R̲e̲m̲o̲t̲e̲ ̲I̲n̲i̲t̲i̲a̲t̲e̲d̲ ̲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.
1. CAMPS ready
2. Crypto/modem ready
3. Initiate link set-up
4. Carrier on
5. Link established
6. Initiate link clear-down
7. Link disabled
8. Carrier down
TIMING DIAGRAM FOR LINK SET-UP AND CLEAR DOWN…01…INITIATED BY CAMPS…01…FIGURE
3.5-1
DN9 Accepted "CAMPS" will be changed to read "NICS
TARE".
DN10 Not accepted Section 3.3.2,7) describes how circuit
109 is used and does not address
the use of circuit 107.
DN11 The diagram in section 3.4.1 is based
on the CCITT's recommendation V24
for the circuit definition and the
International Standard ISO 2110 for
the pin assignment.
The diagram will be updated. "pin
8 109 data channel signal detector
pin 8" will be changed to read
"pin 6 107 data set ready
pin 6".
DN12 Accepted CR prefer that the documentation
for the level 2 protocol used for
CAMPS is the same as used for NICS
TARE. CR will include a short description
of the relevant sections.
DN13 Not accepted "Channel continuity" by means of
check of Transmission Identity in
FL1 of a received message will be
performed.
There is no requirement for automatic
generation/detection of "rerun request"
and "reject message" ASM. Please
refer to telex dated 1980-10-16,
our ref.: CPS/101/tlx/0076, subject:
NICS TARE Interface.
"Re-run" facility see CPS/230/ICD/0002.
Reject message ASM will be forwarded
to the supervisor.
For conformity with CPS/ICD/007 "Channel
Check" will be changed to read "Continuity
Check".
DN14 Accepted "12c and 16" will be changed to read
"12g, 16 and possibly 15" in section
5.1.
DN15 Accepted Two "(sp)" will be inserted in format
line 3. To be in consistence with
the comments to CPS/ICD/007 and the
answers thereof, the following changes
will be made:
"Ser. No." will be changed to read
"SSN".
"DTG" will be changed to read "TOF".
"(Time of filing)" will be added
to the definition of "TOF".
"FL 12c" will be changed to read
"FL 12g".
DN16 Accepted Section 5.2 will be deleted. The
following sections will be re-numbered.
Consecutive identical character has
no meaning on controlled channels.
DN17 Accepted "receive respectively" will be changed
to read "respectively receive or".
DN18 Accepted A "(sp)" will be inserted.
DN19 Not Accepted Channel check messages (self-addressed),
which shall be initiated when in
a period of 30 or 60 min. no messages
have been received, will never be
activated on medium speed channels
(Class A), where channel continuity
messages are transmitted, if no message
has been transmitted within a period
of 5 minutes.
DN20 Accepted a) The last three sentences of section
5.4.2 will be rewritten to read:
"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.
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."
b) NICS TARE will transmit a channel
continuity message, when on an
outgoing channel of class A no
message has been transmitted
during a period of 5 minutes.
The time period of expecting
messages
(6 minutes) is the same as for
NICS TARE.
Please refer to SHAPE memorandum,
3115/shhne/80, dated 1. sep.
80 page. 10-547 and 10-562. Also
refer to IFB 3.14-14.
DN21 Not accepted a) It is the responsibility of the
supervisor to take action when
he is informed about message
sequence numbering mismatch.
Refer to SRS, CPS/210/SYS/0001,
section 3.2.2.1.
b) 1) "(Final Number ASM)" will
be inserted in the text in
section 5.5 for clarity.
2) For clarity the following
will be added to section
5.5.
"CAMPS shall check the Transmission
Serial Number (TSN) and shall
revert the number of the
respective channel to ZERO
directly after the receipt
of the ZID ASM, irrespective
of whether the TSN is in
sequence or not."
3) Please clarify: Will the
"ZID ASM" arrive within the
interval 23.45 to 00.15 as
specified in CPS/210/SYS/0001
section 3.2.4.1.1.6 or will
it be sent by NICS TARE at
00.16 as stated in DN?
DN22 Not Accepted a) NICS TARE has an interface to
TRC and Point-to-Point Connections.
NICS TARE has an interface to
CAMPS.
CAMPS has an interface to TRC
and Point-to-Point Connections.
The same opening sequence must
apply for the interface between
NICS TARE and TRC/P-to-P and
between NICS TARE and CAMPS.
Consequently the opening sequence
between CAMPS and NICS TARE and
between CAMPS and TRC/P-to-P
must be the same.
b) SHAPE has recommeded a channel
opening/closing procedure described
in DN14 to the TRC/P-to-P interface,
CPS/ICD/007. This description
does not fit with NICSMA/sped/stb
(80) 601.1/171, dated on the
4th December 80.
c) Please tell us in which order
the channel opening and the channel
testing shall take place. Shall
the channel first be opened (QRV
ASM) and then tested (INT ZBZ
ASM, ZBX (n) ASM) or shall it
be in reverse order?
CR will update both documents
CPS/ICD/004 and CPS/ICD/007 in
accordance with the supplied
answers.
d) In order to make the opening/closing
procedures identical for the
CAMPS/NICS TARE interface and
for the CAMPS/TRC/P-to-P interface
CR will rewrite section 5.6 to
make it equal to section 5.6
in CPS/ICD/007. Refer to letter
GJ/vhn/LET/101 dated 27th March
1981, where the rewritten section
5.6 is presented. Obviously all
"TRC/P-To-P" will be changed
to read "NICS TARE".
DN23 Accepted Section 5.6.1 will be rewritten.
See DN 22.
DN24 Accepted Section 5.6.1 will be rewritten.
See DN 22.
DN25 Accepted Section 5.6.1 will be rewritten.
See DN 22.
DN26 Accepted Section 5.6.1 will be rewritten.
See DN 22.
DN27 Accepted Section 5.6.1 will be rewritten.
See DN 22.
DN28 Accepted Section 5.6.2.3 will be rewritten.
See DN 22.
DN29 Accepted Section 5.6.2.5 will be rewritten.
See DN 22.
DN30 Accepted Section 5.6.2.6 will be rewritten.
See DN 22.
DN31 Accepted Figure will be rewritten. See DN
22.
DN32 Clarify DN not understood. Something missing.
DN33 Not accepted a) Restriction on message parameters
is given in document CPS/230/ICD/0003,
ACP127 NATO Supp. 3 Procedures
and in document CPS/210/SYS/0001,
CAMPS System Requirements.
b) Security checks on channels are
performed as specified in CPS/210/SYS/0001
section 3.2.1.6.1,f) and 3.2.4.1.1.6,
g).
c) CAMPS will not include system
status information in transmitted
channel continuity message.
If NICS TARE includes system
status information in the channel
continuity message, then this
will imply that all channel continuity
messages shall be forwarded to
the supervisor. Please clarify,
if that is the case.
d) CAMPS has no requirements for
service warning messages.
e) Actions to deviations of messages
from ACP127 format are described
in document ACP127 NATO Supp.
3 procedures, CPS/230/ICD/0003
and in document CAMPS System
Requirements, CPS/210/SYS/0001.
b) CR will now proceed with updating of the ICD based
on the above answers to DNs. Please return as
soon as possible with your comment to the outstanding
points.
Kind regards,
CHRISTIAN ROVSING A/S
Gert Jensen
