top - download
⟦850f5075c⟧ Wang Wps File
Length: 5512 (0x1588)
Types: Wang Wps File
Notes: Spelunked
Names: »~ORPHAN66.00«
Derivation
└─⟦17da89677⟧ Bits:30006229 8" Wang WCS floppy, CR 0126A
└─ ⟦this⟧ »~ORPHAN66.00«
WangText
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
1.3 FUNCTIONAL HIGHLIGHTS .....................
1.3.1 MPF Functions .........................
1.3.2 MCU Functions .........................
…86…1 …02… …02… …02… …02…
1.3 F̲U̲N̲C̲T̲I̲O̲N̲A̲L̲ ̲H̲I̲G̲H̲L̲I̲G̲H̲T̲S̲
The Message Subsystem (MS) will provide an automated
interface between the NICS TARE and the CROSS FOX HF
and LF radio telegraph systems. It will provde relaying
of ACP126/ACP127 messages between ship-borne and shore-based
users and will hereto facilitate management/supervision
and security of the message traffic.
The MS functions match, to a high degree, the functions
of the Computer AssignedMessage Processing System-CAMPS,
presently being being implemented by Christian Rovsing
A/S for NATO. In addition to basic CAMPS functions,
CROSSFOX further includes a number of special Maritime
Message Handling functins to handle broadcast and reeption
over radio-links, to secure message delivery, and to
provide accountability.
This section will list the main functional requirements
for the Message Processing Facility (MPF) and the Message
Compilation Unit (MCU) with respect to security,relay
of messages, management of communication channels,
supervisory control of message traffic and message
assembly.
1.3.1 M̲P̲F̲ ̲F̲u̲n̲c̲t̲i̲o̲n̲s̲
The main facilities and functions to be provided by
the MPF are:
a) To receive and analyze messages inACP127 format
from any of the communication channels.
b) To receive and analyze messages in ACP126 (modified)
format from the Ship-to-Shore system and from the
MRLS.
c) To automatically translate messages received in
ACP126 (modifed) into ACP127 before relaying them
(retransmission) to any of the communication systems.
d) To process and route received messages based on
address information in the message and in accordance
with the rules and procedures laid down in ACP127
ad in the IFB.
e) To transmit messages to ships via the Broadcast
system and/or an MRL, to sites via the collocated
NICS TARE and/or TRC, and/or to local users via
directly connected terminals according to the routing
information in each message.
f) To make a reduced ACP126 to ACP127 conversion of
messages received in ACP126 (modified) format,
before relaying. This will apply to messages with
RI's included in a supervisor specified list.
The reduced conversion includes enveloping the
ACP26 formatted message with an ACP127 header.
g) To provide on-line message storage for 7 days of
traffic and off-line storage for up to 30 days
of message traffic with facilities for both on-line
and off-line retrieval.
h) To account for all mesages received and transmitted
by producing log records for each incoming and
outgoing message on a per channel basis. The log
record will be printed out.
i) To produce a hard copy log record of all important
system actions and terminal transactions for security,
accounting, and recovery purposes.
j) To provide capabilities for mesage delivery and
message preparation at local terminals placed in
the MCSF area (one terminal) and the MPF area (four
terminals). An interactive dialog will assist
the user in preparation of a message.
k) To provide comprehensive supervisory an control
facilities and a suitable engineering operator
position for effective control and operation of
the MPF including start up, recovery, and maintenance.
l) To provide message service operator positions with
appropriate facilities for messag service and other
functions, such as:
o message retrieval
o message servicing
o maintenance of routing and address information
o management of Ship-to-Shore channels
o screening and vetting of messages destined
for broadcast
o roting assistance for messages when format
translation cannot be fully effected
o routing of messages for broadcast containing
special RI.
m) to exchange accounting information periodically
with CROSS FOX ship users and shore users to protect
against loss of traffic.
n) To compile and periodically print out trafficstatistics.
o) To be capable of handling at least 2000 incoming
and 2000 outgoing messages per day with an average
length of 1500 characters each.
p) To meet the user response time requirements for
the cross-office handling time and the respons
time requirements for command entry and message
retrieval.
q) To provide for future expansion; 30% increase
in future message traffic and 25% increase in the
total number of local terminals and external communication
lines without hardware chanes.
r) To provide for the exchange of updating information
between the controlling and stand-by MPF.
1.3.2 M̲C̲U̲ ̲F̲u̲n̲c̲t̲i̲o̲n̲
The Message compilation Unit receives four serial data
streams from four ship-to-shore access sites. The
four data streas are identical except for transmission
errors and delay.
A single message is compiled from the four data streams
using a majority voting algorithm. This message is
conveyed to the MPF through a KW-7 crypto.
In addition, character ad channel status are supplied
directly to the MPF.
