Specifications

Notification
Appliances
Hazardous Location
Devices
Door Holders
& Relays
Initiating
Devices
15
EST3
Network
SUBMIT



EST3
Network
Security & Access Control
As a true multiplex life safety system, EST3 supports fire alarm as well as
security and access control functions. The capacity for this additional
functionality is built right into every EST3 panel. All that’s needed to take
advantage of it is a handful of specialized components.
Security/Access Control Module
The 3-SAC Security/Access Control Module is a key component that blends the security and
access control functions into the EST3 multiplex life safety system. The 3-SAC is the demar-
cation point between fire and security functions. For jurisdictions requiring independent
wiring of fire and security devices, the 3-SAC offers two independent circuits. Where fire and
security devices are permitted to be connected to the
same circuit, both circuits can support fire and secu-
rity functions. All security devices that connect to a 3-
SAC are designed, tested and listed to strict fire alarm
standards.
The 3-SAC is used in combination with the Modcom
Modem Communicator. The Modcom’s dialer (DACT)
function transmits alarms to one or more central moni-
toring stations and/or paging terminals. Additionally,
information received by the Modcom can be
downloaded through the 3-SAC to individual security
devices.
The EST3 network ensures that fire alarm events al-
ways receive the highest priority over routine signal
processing. Power for the 3-SAC comes from the same
highly-reliable power supply/battery combination
used to power fire alarm components. Any Control Dis-
play module will mount in front of the 3-SAC, allowing
great flexibility of the system user interface layout.
3-SAC Security/Access Control Module Catalog Sheet 85010-0109
Class A wiring
Class B wiring
TB2
110
3-SAC Module
CRC CRC
KPDISP
Keypad
B
RS-485
Not
used
Not
used
A
RS-485
Ground
GG
++
From 24Vdc circuitor
local120Vac
TB2
110
3-SAC Module
CRC CRC
CRC CRC
KPDISP
Keypad
KPDISP
Keypad
B
RS-485
Not
used
Not
used
A
RS-485
Ground
GG
++
From 24Vdc circuitor
local120Vac
From 24Vdc circuitor
local120Vac
120
Terminating
Resistor
W
120
Terminating
Resistor
W
Keypad/Display
The KPDISP is a combination keypad and dot-matrix
display designed for use with the EST3 fire alarm/secu-
rity/access control systems. The unit features a large
LCD display and telephone-style keypad housed in an
attractive Cycoloy
®
case. A removable cover is pro-
vided to prevent accidental keypad activation and for
protect against dirt.
The KPDISP transmits and receives information from/to the 3-SAC security access control
module installed in the EST3 system. Communication between the KPDISP and the 3-SAC is
supervised, providing unprecedented reliability. Credential holder information is encrypted
to provide an additional level of security. KPDISP data is stored in non-volatile memory. Power
to the KPDISP is provided by the EST3, ensuring a reliable, supervised and backed-up power
source.
KPDISP Keypad/Display Catalog Sheet 85006-0046
DATA
POWER
24Vdc
supply
Fromlast device
RS-485
line
+
–
24Vdc
supply
Tonextdevice
RS-485
line
+
–
+
–
+
–
+
–
+
–
Motion detectors, p.27; Dual input security module, p.33