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⟦16d0a7928⟧ Wang Wps File
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WangText
…07……00……00……00……00…I…02……00……00…I
H…0b…H…0e…H…01…H G…0a…G…00…G…06…F…0b…F…02…E…86…1 …02… …02… …02…
…02…CPS/ICD/004
…02…TDJ/810525…02……02…#
NICS TARE INTERFACE
…02…ISSUE 1…02…CAMPS
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
1 SCOPE ........................................
5
2 REFERENCE DOCUMENTS ......................... 5
to 6
2.1 ABBREVIATIONS ............................
6
3 ELECTRICAL INTERFACE .........................
6 to 13
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 ............... 12
3.4.1 Interchange Wires ................... 12
3.4.2 Connector Characteristics ............ 13
3.5 CRYPTO EQUIPMENT (DOLCE) ................. 13
4 EDC LINK ACCESS PROTOCOL ..................... 13
5 TRAFFIC OF MESSAGES IN ACP 127 FORMAT ........ 14
to 21
5.1 GENERA LAYOUT OF ABBREVIATED SERVICE
MESSAGES ................................. 14
5.2 FLASH MESSAGE RECEIPT .................... 15
5.2.1 Format of Outgoing Flash Receipt ..... 16
5.2.2 Format of Incoming Flash Receipt ..... 16
5.3 RAFFIC CONTINUITY CHECK ................. 16
5.3.1 Outgoing Channel Continuity Message ..
5.3.2 Incoming Channel Continuity Message ..
5.4 CHANNEL NUMBER RESET ..................... 17
5.4.1 Incoming Channel ....................
5.4.2 Outgoing Channel .....................
5.5 CHANNEL CLOSING, OPENING AND TESTING .....
5.5.1 General ..............................
5.5.1.1 Controlling Authority ............
5.5.1.2 Definitions .....................
5.5.1.3 Constraints ......................
5.5.2 Incoming Channel Closing, Opening and
Testing ..............................
5.5.2.1 Incoming Channel Closing .........
5.5.2.2 Incoming Channel Opning .........
5.5.2.3 Incoming Channel Testing .........
5.5.3 Outgoing Channel Closing, Opening and
Testing ..............................
5.5.3.1 Outgoing Channel Closing .........
5.5.3.2 Outgoing Channel pening .........
5.5.3.3 Outgoing Channel Testing .........
APPENDIX A ......................................
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). Th 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. CS/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 Ruting 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
Appenix 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
existin 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 termnated 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 vots 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 ofthe 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 excee 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 500 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 +3volts 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 vltage 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 intrface.
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) Read 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 commonreturn.
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 bi 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 receiversignal
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 frm 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
et circuits 106 and 107 to ON when ready to send
data to NICS TARE. 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 CAMS 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.
3.3.2 C̲o̲n̲n̲e̲c̲t̲o̲r̲ ̲C̲h̲a̲r̲a̲c̲t̲e̲r̲i̲s̲t̲i̲c̲s̲
The connector is a 25-pin Canon 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 CITTs 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 circuit
