Technical Specification Sheet
Rev. 1, July, 1999
ACU2 Networked Intelligent Controller
Features
Figure 1. APOGEE Security Technologies’
ACU2 networked intelligent controller.
x
Eight card readers total -- Two multi-dropped RS485 ports with four readers each
x
Supports magnetic stripe, Weigand, barium
ferrite, infra red bar code, proximity and smart
card technologies
x
Includes twelve fully supervised four state alarm
inputs configurable for door contacts, request-toexit, intrusion detection or general alarms
x
Includes twelve relay outputs configurable for
door locks, local annunciation, or auxiliary outputs
x
Supports remote input modules (RIMs) and
Remote Relay Modules (RRMs) to a maximum of
172 fully configurable supervised four state
inputs and 156 fully configurable form C outputs
x
Provides local and global alarm masking
capabilities initiated from card readers, keypads
or operators
x
Full system data base and parameters
downloaded for real time local processing and
control
x
Local storage of 10,000 cardholder records
(options to 50,000 or 128,000) with minimum
1,000 event transactions
x
Full UPS battery backup for controller, card
readers, modems and door locks standard
x
Configurable local alarm-to-relay linking and local
annunciation with conditional relay activation
x
Will support multiple and card and reader
technologies plus keypad, with variable card
formats, site codes and company codes on a
reader by reader basis
x
Provides local and timed antipassback facilities,
or global antipassback through the CPU
x
RS-232C and RS-485 host port communication
compatible with most modems and fiber optics
Description
The ACU2 Networked Intelligent Controller features
state-of-the-art technology optimizing both the
flexibility and reliability required for today’s access
control and alarm monitoring environment.
Using a 16-bit microprocessor, the ACU2 is available
with up to 4 MB RAM and up to 512 KB ROM, to
provide complete flexibility in card populations of up
to 128,000 together with the widest possible range
of programmable features.
By utilizing external RIM and RRM input and relay
output modules, the ACU2 can monitor and control
large numbers of alarms and relays up to 4,000 ft.
from the ACU2.
Document No.149-386P25
Page 1 of 6
TO HOST COMPUTER
TO OTHER ACU'S
6
TWELVE
AUXILIARY
RELAY
OUTPUTS
ACU
2
3
MAGNETIC
DOOR
CONTACT
TWELVE
SUPERVISED
ALARM
INPUTS
2
4
1
4 SUPERVISED INPUTS
AT THE CARD READER,
CONFIGURABLE FOR:
DOOR CONTACT
EXIT BUTTON/SENSOR
OTHER ALARMS
MAGNETIC
STRIPE OR
WIEGAND
EXIT
REQUEST
BUTTON/
SENSOR
4
- OR DOOR
LOCK
SEC0077R1
ONE RELAY AT THE
CARD READER,
CONFIGURABLE FOR:
DOOR LOCK
AUXILIARY OUTPUT
Figure 2: Integrated Interface
Cable
Number
Description
Belden Cable Number
(or approved equivalent)
Distance Limitations
1
Communication (RS-485) and power (24
Vdc) controller to reader or RRE
#9329-22AWG, 3-pair/individual shields or
#9369-18AWG, 3-pair/individual shields
Max. 1,000 ft./305 m
Max. 4,000 ft./1,220 m
2
Door contact input
#9407-22AWG, 2-conductor/unshielded
Max. 1,000 ft./305 m
3
Exit request button/sensor input
#9407-22AWG, 2-conductor/unshielded
Max. 1,000 ft./305 m
4
Door lock control from controller or RRE
#9409-18AWG, 2-conductor/unshielded
Max. 1,000 ft./305 m
5
Standard reader communication keypad
(only) communications
#9942-22AWG, 8-conductor/shielded (typical)
#9946-22AWG, 13-conductor/shielded
Max. 100 ft./30 m
Max. 10 ft./3 m
6
Controller to host communication
#9328-22AWG, 2-pair/individual shields or
#9368-18AWG, 2-pair/individual shields
Max. 4,000 ft./1,220 m
x
Optional on-board DES encrypted communication
to the host computer
x
On-board full year real-time clock and calendar
x
Dual host communication ports for redundant
communications channels to host
x
High integrity dial-up communications using high
speed dial-up modems
System Description
The ACU Controllers are intelligent remote units
featuring state-of-the-art technology for access
control, alarm monitoring and output control. The
ACU2 interfaces with the APOGEE Security
Technology System (ASTS) of host processors. The
ACU2 offers the latest features and flexibility with an
overall design for reliability, durability and ease of
installation and maintenance.
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Each ACU2 unit controls up to 8 card readers with or
without keypads and includes 12 supervised alarm
inputs and 12 relay outputs, all user-configurable as
to function and reporting format. Optional on-board
DES encrypted communication may also be included
to comply with high security, protected area
requirements.
The ACU2 Controllers incorporates 2 external device
ports, each capable of controlling 4 card readers,
multi-dropped using an RS-485 interface. Expanded
input and output capabilities can be added. (See the
ACU Remote Modules datasheet for details.)
Local Data Base
The ACU's local data base is downloaded from the
host computer to provide for local access control
processing even when communication to the host is
lost. The local data base includes storage of 10,000
Siemens Building Technologies, Inc.
TO HOST
1
TO OTHER ACU'S
6
RRE
3
TWELVE
AUXILIARY
RELAY
OUTPUTS
MAGNETIC
DOOR
CONTACT
ACU
2
REMOTE
READER
ELECTRONICS
ALARM
INPUTS
2
5
TWELVE
SUPERVISED
ALARM
INPUTS
4
DOOR
LOCK
SEC0078R1
EXIT
REQUEST
BUTTON/
SENSOR
BAR CODE,
BARIUM
FERRITE,
MAGNETIC
STRIPE,
PROXIMITY OR
WIEGAND
Figure 3: Remote Interface (same number key as Figure 2)
card records (optionally 50,0000 or 128,000) each
stored with PIN, time zone and door authorization
parameters. When a cardholder presents a card to a
reader, the ACU retrieves that card record from its
local data base to determine if that individual is
authorized for entry at that door, on that day and at
that time, and activates the appropriate door strike
relay if access is authorized. When the transaction is
complete the access event is transmitted to the host
computer for storage. If communication has been
lost between the ACU unit and the host, the event is
stored locally until communication is restored, at
which time all stored events will be transmitted to
the host for storage. A minimum of 1,000 event
transactions can be stored in local memory. The
actual number of transactions that may be stored is
dynamically allocated depending on memory size and
number of cardholders.
Alarm Monitoring
All ACU2s provide twelve supervised alarm inputs
plus cabinet tamper detection and power fault
alarms. The ACU2s also contain twelve auxiliary
output relays which can be locally or globally linked to
either single or multiple alarm inputs with conditional
activation. Relay linking and activation parameters,
as well as card reader time commands, are also
downloaded from the host and stored in local
memory, thus allowing local time command
processing to continue if communication to the host
is lost.
Dial-Up Systems
The ACU2 is available with a full dial-up control facility
when connected over normal dial-up telephone lines
to any of the ASTS host processors. The dial up
software is designed to allow the ACU2 to access up
to eight pre-programmed telephone numbers through
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a built-in fax modem to annunciate alarms and upload
transaction history. The built-in modem is powered
from the ACU2 UPS power supply and consequently
can continue communications in the event of a main
power failure.
The ACU2 dial-up communications facility is unique
for several reasons. First, during the initial download
process, the ACU2 operates on line to the ASTS file
server, so that communications with the file server is
established immediately. The CPU takes over control
of the ACU2, responding to all access requests,
alarm and output control functions, until the full
database of the ACU2 has been downloaded. Thus
there is no waiting for information to be downloaded
to the ACU2 following initial installation.
The ACU2 can also be programmed to ensure that
alarm information is dialed into specialized "alarm
only" ports on the file server, so that a
communication path is always available to the file
server to annunciate alarms.
Reader Architecture
The ACU2 offers the flexibility of reader interface
electronics installation in either of two configurations.
The reader electronics can be integrated in the
housing, with a membrane keypad, and installed
directly adjacent to the door. If the read head
required does not allow such a configuration, as is
the case for Proximity Readers or certain types of
Wiegand Readers, or the customer prefers a two
stage reader configuration, an RRE (Remote Reader
Electronics) unit, can be installed above the door and
interfaced to the read head. Both configurations also
offer the choice of controlling the door lock from a
relay at the door or a relay on the ACU Controller.
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Specifications
Power Fault
Detection
Internal for the detection and
reporting to the host of power fault
conditions
Access
Control
Doors
Access Alarm
Monitoring
For 8 doors. Each card reader is
user-configurable (card-only, card
and keypad, or keypad only).
Includes the detection and reporting
of:
x
Door forced open alarm
x
Door held open alarm
x
Card reader tamper alarm
x
Card reader off-line alarm
Each ACU card reader includes 4
user-configurable alarm inputs.
Local
Database
Processing
Allows the downloading and local
storage of 10,000 to 128,000
cardholder records and a minimum
of 1,000 event transactions. ACU2
utilizes dynamic memory allocation,
allowing more than 1,000 event
transactions to be stored if the
maximum number of card records is
not used.
Extended Fault
Detection
Loss of AC power
x
Battery overvoltage (overcharge)
x
Battery voltage low
Cabinet
Tamper Alarm
Detection and reporting via a
microswitch on the door of the
keylocked enclosure.
Relay Outputs
12 relay outputs. Each SPDT relay
(2.0 A, 24 V ac/dc rating) includes a
red LED indicator. Each ACU can
support up to 8 external RRM
modules, each with 16 relays.
Standards
UL 294
UL 1076
DIAM 50-3
DCID 1/21
FIPS46-1
MIL-STD 450B
FCC CLASS A
Dimensions
Height: 20.12 in (51.1 cm)
Width: 16.50 in (41.9 cm)
Alarm
Monitoring
Inputs
x
Depth: 5.00 in (12.7 cm)
12 supervised alarm inputs. Each
alarm input incorporates "four-state"
supervision circuitry, including false
alarm filtering utilizing custom digital
signal processing. Each ACU2 can
support up to eight external RIM
modules, each with 16 four-state
supervised alarms.
Each alarm input allows
detection/reporting of circuit trouble
conditions:
x
Loop resistance too low (short
circuit)
x
Loop resistance too high (open
circuit)
x
x
Weight
45 lbs (20.4 kg)
33 lbs (15 kg) without batteries
Environmental
Power
o
o
Maximum:
+65 C (+150 F)
Minimum:
-30 C (-22 F)
Humidity:
0 to 95% (Relative)
o
o
120/240 V ac, 50/60 Hz, dc standby
battery backup (4 hour backup)
Maximum: 1.5 Amps., 150 Watts
Typical:
1.0 Amps., 100 Watts
x
Expanded memory version for
local storage of up to 50,000 or
128,000 card records
Loop voltage out of range
(circuit fault)
x
Built-in dial up modem
x
On-board DES encryption
A portion of loop grounded
(ground fault)
x
Gel-cell batteries for UPS
Options
.
Page 4 of 6
Siemens Building Technologies, Inc.
Ordering Information
Table 1. Standard ACU2 Networked Intelligent Controllers
Description
Product Number
ACU2 Networked Intelligent Controller, board and PROM only with 10,000 card capacity
ACU2-A0A0-CP
ACU2 Networked Intelligent Controller with 4 amp power supply, 10,000 card capacity and
standard enclosure. UL Listed.
ACU2-A1B0-CP
ACU2 Networked Intelligent Controller with 8 amp power supply, 10,000 card capacity and
standard enclosure. UL Listed.
ACU2-A2B0-CP
Table 2. Special Configuration ACU2 Networked Intelligent Controllers
In the box below are the elements that make up a product number for the other configurations. Follow the directions for
Boxes 1 – 4 to develop the product number you desire.
Base Product
ACU2-
Card
Capacity
Power
Supply
(1)
(2)
Enclosure
(3)
Dial-up
Option
Base Product
(4)
-CP
(1) Select the appropriate code for one of the Card Capacity options listed below. Enter selected code in Box 1.
Code
Description
A
10,000 cards
C
50,000 cards
D
128,000 cards
(2) Select the appropriate code for one of the Power Supply options listed below. Enter selected code in Box 2.
Code
Description
0
No power supply
1
4-amp power supply
2
8-amp power supply
(3) Select the appropriate code for one of the Enslosure options listed below. Enter selected code in Box 3.
Code
Description
A
No enclosure (standard)
B
Standard enclosure
C
NEMA-12 enclosure
(4) Select the appropriate code for one of the Dial-up options listed below. Enter selected code in Box 4.
Code
Description
0
No dial-up
1
Configured for dial-up
.
Siemens Building Technologies, Inc
Page 5 of 6
EXAMPLE: Once all boxes have been completed, you have a product number for the desired enhanced configuration.
As shown in the example below, the number is: ACU2-C1B1-CP.
Base Product
ACU2-
Card
Capacity
Power
Supply
C
1
Enclosure
B
Dial-up
Option
Base Product
1
-CP
Table 3. UPS Battery Option for ACU2
Description
Product Number
Battery 12 VDC, 7 amp-hr Gel-Cell Batteries, no mounting bracket
ACU-BAT-1
Table 4. Other ACU2 Options
Description
Product Number
ACU2 DES Encryption Option. One required per ACU2 that is to be configured for DES
encryption. This option consists of a special program chip that makes the ACU2 compatible
for operation with ASTS systems that have the DES Encryption Software option.
133258
ACU Dial-up option
134852
ACU2 portable installation and verification PC. Includes a Pentium Notebook PC.
133394
Table 5. Other ACU2 Options
Description
Product Number
RS-485 end-of-line terminator (not RIM & RRM at this time)
124824
Alarm device end-of-line terminator
131727
Door strike noise suppresser
122610
Notice: Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes
as design improvements are introduced.
Credits: APOGEE is a trademark of Siemens Building Technologies, Inc. Other products and company names herein may be the trademarks of
their respective owners.
Copyright 1999 by Siemens Building Technologies, Inc.
Siemens Building Technologies, Inc.
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
Printed in the U.S.A. (origin)
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