System information

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 or the TrueAlert Addressable
controller can be controlled for local or remote
notification appliance expansion. (Refer 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 (Style 4) operation.
Wiring. Up to 10,000 total feet (3048 m) of twisted,
shielded 18 AWG wire may be connected to the IDNet
channel. The distance from the panel to the farthest device
may be up to 2500 feet (762 m). Unshielded wire may be
used in certain retrofit applications. IDNet wiring can be
either Class B (Style 4) or Class A (Style 6) depending on
the system requirements.
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 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.
ALARMFIRE
PULL DOWN
SIMPLEX TIME RECORDER CO.
40 90-900 2
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
POWER
BEFORE
SERVICING
CAUTIO N
DISCONNECT
4009 IDNet NAC EXTENDER
TM
4009 IDNet NAC
Extender
TrueAlert Addressable Controller
POWER
BEFO RE
SERVICING
CAUTIO N
DISCO NNECT
TrueAlert Addressable Controller
TM
FIRE ALARM
CONTROL
DISCONNECT
POWER BEFORE
SERVICING
CAUTION
** SYSTEM IS NORMAL **
12:02:15pm Mo n 8-Ma r-99
SUPV
ACK
SYSTEM
SUPERVISORY
ALARM
ACK
FIRE
ALARM
TROUBLE
ACK
SYSTEM
TROUB L E
ALARM
SILENCE
ALARM
SILENCED
SYSTEM
RESET
AC
POWER
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
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.
Simplex Time Recorder Co. 3 S4010-0001-4 4/00