  |
The Arming Control Unit (ACU-7) is used to open/close (arm/disarm) an area of alarm zones for one
or more designated field devices in the Integrated Digital Controllers
(IDC) System. |
Each ACU-7 can be configured to control one account when the field devices
are connected to the same Network Local Controller (NLC). Up to fifteen
(15) ACU-7 units can be interfaced to a single NLC. Each ACU-7 communicates
with the NLC/COMM via a 22 AWG, 2-wire twisted pair cable using standard
2-wire RS-485 communications.
The
ACU-7 uses an unmarked keypad in combination with a four-line, 80-character
Liquid Crystal Display (LCD) for security code entry and data selection.
Six unlabeled “soft” keys are located above and six below the
LCD. In some modes of operation five of the keys above and below represent
the numeric keys (0 – 9). These keys may be labeled in four different
methods; horizontal (1,2,3,4,5 on top, and 6,7,8,9,0 on bottom), vertical
(1,3,5,7,9 on top and 2,4,6,8,0 on bottom) or, for higher security, Rotational
and Rotational-PLUS.
The
Rotational method presents a new arrangement of number assignments to
the keys for each use. The Rotation-Plus presents a new arrangement of
number assignments to the keys after each keystroke. In either Rotational
modes the keys are always shown in numerical order, similar to the horizontal
method, however the starting point is always different and randomly determined.
This
dynamic keypad labeling makes available the following ACU-7 functions:
-
Provides
functionally unified system of access control, alarm monitoring
and facility controls
-
OPEN
or CLOSE account (requires entry of a 5-digit "user" security code)
-
Display
Account Status: OPEN, CLOSED, ENTRY DELAY or EXIT DELAY
-
Display
Status for up to 64 zones in the account on one screen: SAFE, ACTIVE
ALARM or FAULT, ACTIVE ALARM and MASKED, SAFE and MASKED
-
Display
ACTIVE ALARMS only (one at a time) with full descriptive text name
-
Display
MASKED ZONES only (one at a time) with full descriptive text name
-
Display
CURRENT TIME or REMAINING OPEN TIME (hh:mm:ss)
-
ARM,
DISARM, MASK, UNMASK individual alarm points, and FORCE CLOSE ACCOUNT
with alarm points masked (requires entry of a 5-digit ìprivileged
userî security code)
|
