TM 5-6350-275-24&P
1-19. ACCESS CONTROL.
a. General. Access Control is the ability to control and monitor personnel entry and exit. This is achieved by access
readers which unlock doors when a person presents a valid card and/or enters a valid PIN. Information for the use of
each access reader and door is recorded by the RADC and returned to the PMC. It is then processed and made
available for display.
b. Security Zones. A security zone is an area which is protected by access control equipment and whose doors can be
controlled to prevent personnel from entering and/or leaving a zone. The status of each security zone is recorded in the
system under one of five possible conditions.
(1) Normal. The normal state means that access into and out of the zone is controlled in a standard secure
procedure.
(2) No Entry. No entry indicates that access into the zone is prevented; however, personnel may leave as normal.
(3) No Exit. No exit indicates that exit from the zone is prohibited.
(4) No Access. No access means that both entry and exit are prohibited.
(5) Unlocked. The unlocked state means that entry and exit is allowed without the use of Personnel Identification
Numbers (PINs) and/or cards.
c. Portals. A portal is a door or gateway through which authorized personnel can gain access to a zone. Each portal is
identified by a name, such as main gate, rear door, front door, etc., and number, and may have up to two access
readers, one for entry, and the other for exit.
Portals are monitored by ternary points which are used to report the conditions ajar, forced open, and normal.
(1) Ajar. The condition ajar means that the door has been left open for longer than a predefined time.
(2) Forced Open. Forced open indicates that the door was not opened by using a card, by an operator, or
automatically by the system.
(3) Normal. Normal means that the door is functioning in a standard secure mode.
d. Incident Recording. Each attempted access through a door is recorded as an event and validity checks are
made to prevent breeches in security. The events are stored within an archive file and can be displayed by the
[EVENTS] soft-key which is an option under the [PICT] key. In most cases, they are reported by means of systems
alarms. The incidents relating to portal access which can be reported are listed below. Except for the first entry, all
incidents will be reported by an alarm and will also be reported as a system event.
(1) Valid Access In and Out
(2) Duress Alarm (an additional number to the Personnel Identification Number (PIN) for a secret code)
(3) Wrong Card Type (card from another system)
(4) Unknown Card (valid for system but not registered)
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