IDNet Addressable Interface
Overview.
The 4010 provides IDNet addressable device
communications. Using a two-wire circuit, individual
devices such as manual fire alarm stations, TrueAlarm
sensors, and sprinkler waterflow switches can be directly
connected (or interfaced) to the IDNet controller to
communicate their identity and status. This addressability
allows the location and condition of the connected device
to be displayed on the 4010 panel LCD and on system
annunciators. Additionally, control circuits (fans,
dampers, etc.) may be individually controlled by using a
relay IAM (individual addressable module). The 4009
IDNet NAC Extender can be controlled for local or
remote notification appliance expansion. (Refer to
compatible device lists on document S4090-0011 and to
individual device documentation for further details.)
Capacity.
A total of 250 addressable monitor and control
points may be intermixed on the same pair of wires. By
using Zone Adaptor Modules (ZAMs) or Individual
Addressable Modules (IAMs), conventional initiating
devices can be connected to the IDNet circuit.
IDNet Addressable Operation.
The IDNet controller
continuously interrogates each addressable device on the
communication channel for status condition such as:
normal, off-normal, alarm, supervisory, or trouble.
Sophisticated poll and response communication
techniques ensure supervision integrity and allow for
"T-tapping" of the circuit for Class B operation.
Wiring Requirements.
Refer to the specifications chart
below. Distances are for shielded or unshielded wire.
Shielded wire may provide protection from unexpected
sources of interference and may be required for some
applications.
Wiring Specifications
Size
18 AWG (0.82 mm
2
)
Wire
Preferred Shielded twisted pair (STP)
Acceptable Unshielded twisted pair (UTP)
Farthest Distance from Control
Panel to Device
Up to 2500 feet (762 m)
Total Wire Length Allowed With
“T” Taps for Class B Wiring
Up to 10,000 ft (3 km).
TrueAlarm Analog Sensors
TrueAlarm System Operation.
IDNet communications
are used for TrueAlarm smoke and temperature sensors.
Every four seconds, smoke sensors transmit an output
value based on their smoke chamber condition. The 4010
CPU maintains a current value, peak value, and an average
value of each sensor's output. Status is determined by
comparing the current sensor value to its average value.
Tracking this average value as a continuously shifting
reference point filters out environmental factors that cause
shifts in sensitivity.
Programmable Sensitivity.
The sensitivity of each
sensor can be field programmed at the 4010 Control Panel
for different levels of smoke obscuration (in percent) or
for specific heat detection levels. In order to evaluate
whether the sensitivity should be revised, the peak value
is stored in memory and can be easily read and compared
to the alarm threshold directly in percent.
TrueAlarm Analog Sensors (Continued)
TrueAlarm heat sensors
can be selected for
rate-of-rise detection as either 15° F (8.3° C) or 20° F
(11.1° C) per minute with an independent fixed limit of
135° F (57° C) or 155° F (68° C). TrueAlarm heat sensors
can also be programmed as a utility device to monitor for
temperature extremes in the range from 32° F to 155° F
(0° C to 68° C). This feature can provide freeze warnings
or alert to HVAC system problems.
ALARM
FIRE
PULL DOWN
S IMP LEX TIM E RE CO RDE R CO .
4090-9002
RELAY IAM
INSTAL. INSTR. 574-184
DATE CODE:
1
5
6
7
8
1
2
3
4
Addressable station
Monitor ZAMs and
Relay IAMs
Supervised IAM
Quick-Connect
TrueAlarm sensor
Modular TrueAlarm
sensor with base
Modular TrueAlarm sensor
with IDNet isolator base
To additional IDNet
devices, up to 250 total
POW ER
BEF ORE
SERVIC ING
CAUTION
D ISCONNECT
4009 IDNet NAC EXTENDER
TM
4009 IDNet NAC
Extender
TrueAlert Addressable Controller
POW ER
BEFORE
SERVICING
CAUTION
DISCONNECT
TrueAlert Addressable Controller
TM
FIRE ALARM
CONTROL
DISCONNECT
POW ER BEFORE
SERVICING
CAUTION
ZONE 1
ZONE 8
ZONE 2
ZONE 4
ZONE 5
ZONE 6
ZONE 7
ZONE 3
ZONE 9
ZONE 16
ZONE 10
ZONE 12
ZONE 13
ZONE 14
ZONE 15
ZONE 11
ZONE 17
ZONE 24
ZONE 18
ZONE 20
ZONE 21
ZONE 22
ZONE 23
ZONE 19
** SYSTEM IS NORMAL **
12:02:15pm Mon 9-Sep-02
SUPV
ACK
SYSTEM
SUPERVISORY
AL ARM
ACK
FIRE
ALARM
TROUBLE
ACK
SYSTEM
TROUBLE
ALARM
SILENCE
ALARM
SILENCED
SYSTEM
RESET
AC
POW ER
4010 Fire Alarm
Control Panel with
annunciator door
4010 Control Panel with Typical IDNet Devices
Diagnostics and Default Device Type
TrueAlarm operation gives the 4010 system the ability to
automatically indicate when a sensor is almost dirty, dirty,
and excessively dirty. The NFPA 72 (
National Fire Alarm
and Signaling Code
) requirement for a test of the sensitivity
range of the sensors is fulfilled by the TrueAlarm ability to
maintain the sensitivity level of each sensor.
Modular TrueAlarm sensors use the same base and different
sensor types (photoelectric smoke sensor, or heat sensor)
can be easily interchanged to meet specific location
requirements. This feature also allows intentional sensor
substitution during building construction. When conditions
are temporarily dusty, instead of covering the smoke sensors
(causing them to be disabled), heat sensors may be installed
without reprogramming the control panel. Although the
control panel will indicate an incorrect sensor type, the heat
sensor will operate at a default sensitivity to provide heat
detection for building protection at that location.
3
S4010-0001-14
6/2014
