Technical Area 55 Entry Control System (ECS). [Plutonium facilities] Page: 4 of 9
This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
The muster capability provided by ECS enables
the operating group to determine if any personnel
remain in the Plutonium Facility in the event of
a. emergency evacuation.
Movement of special nuclear materials (SNM)
can only be done by authorized material handlers.
ECS validates to security guards that personnel
moving SNM are so authorized.
The operating group must maintain records on
all activity in the SNM storage vaults. ECS,
through the use of readers at each vault entrance,
provides a daily log on all vault activity.
Control of ECS is exercised by employing
either the operator station loca-ed in the Group
Office or the one in the Site Control Room. Each
of these stations is equipped with a CRT terminal,
badge reader, and printer. Only authorized
personnel are permitted to use the terminals to
perform the many functions necessary for the daily
execution of the ECS operational procedures.
System security and integrity is maintained
through the use of need-to-know passwords.
The Group Office station is ,rimarily em-
ployed to perform the system administrative
functions such as data base enrollment and data
'ase maintenance. The Site Control Room station
is primarily used for system control, monitoring,
and maintenance. It is also used for adminis-
trative functions as needed during. the normal work
day and iR used almost exclusively for all pur-
poses after the normal work hours.
Terminal operators communicate with the com-
puter system by employing directives that have
been implemented for this purpose. Use of these
directives provides the means by which the
operators are able to manipulate and command the
ECS via a two-way dialogue between themselves and
Operational CRT screens are normally divided
into four quadrants, as shown in Fig. 1. The un-
per left quadrant is used to display general in-
formation concerning the system operation. The
upper right quadrant is used to specifically pre-
sent, step-by-step, what is to be achieved by the
directives. Normally, the operator is given a
short explanation of what is to be accomplished
and the options that are available. This quadrant
is the computer's "talking" partition. In ad-
dition, the date, time, and number of people in
the plutonium processing building (PF4) are dis-
played on the top line of this quadrant at all
The lower left quadrant is used to accept
operator responses which are initisted by a
computer-generated prompt. Usually, the operator
will respond with an option number or a very short
message. This quadrant is the computer's
'listening" partition. The lower right quadrant
is used to display messages from the computed in-
forming the operator that the dialogue is not
proceeding as it should and what corrective action
must be taken. This partition is also used to
report any operational system problems that may
exist and require the operator's immediate at-
System directives fall into one of the
several distinct functional categories listed
nperutlonal system control
System access (password cointrul)
MST-I1 227 P13:1
TA-SB ENTRY CONTROL SYSTEM
ALTER THE DATA HaSr
1 = ADD A RECORD
E = CHANGE A RECORD
3 e DELETE A RECORD
4 = IN OUT PF4
S 2 CLEAR PF4
S " DELETE VISITOR'S I 00
5 K PREVIOUS .!!%U
5 ZLOI OFF
ENTER DATAHASS PAREWORD
ENTER OPTION 7
Here’s what’s next.
This article can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Article.
Beaumont, A.; Brundige, E.; DesJardin, R. & Rivera, R. Technical Area 55 Entry Control System (ECS). [Plutonium facilities], article, January 1, 1984; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1058764/m1/4/: accessed March 18, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.