Overview.
The 4007ES provides an IDNet+ addressable
initiating device Signaling Line Circuit (SLC) that supervises
wiring connections and the individual device communications
status on the SLC. With 2-wire IDNet+ SLCs, initiation,
monitoring, and control devices such as manual fire alarm
stations, TrueAlarm sensors, control relays, and sprinkler
waterflow switches can communicate their identity and status
and receive fire alarm system control. Additional addressable
interface modules include circuit isolators, conventional IDC
zone adapters, and interface to other system circuits such as
fans, dampers, and elevator controls.
IDNet+ Addressable Device Operation
Each addressable device
on the IDNet+
communication channel is continuously interrogated for
status condition such as: normal, off-normal, alarm,
supervisory, or trouble. Both Class B and Class A operation
is available. Sophisticated poll and response
communication techniques ensure supervision integrity and
allow for "T-tapping" of the circuits for Class B operation.
Devices with LEDs pulse the LED to indicate receipt of a
communications poll and can be turned on steady from the
panel. With addressable devices, the location and status of
the connected device is monitored, logged, and displayed
on the operator interface LCD with each device having its
own 40 character custom label for precise identification.
TrueAlarm Addressable Sensor Operation
Addressable initiating device communications
include operation of TrueAlarm smoke and temperature
sensors. Smoke sensors transmit an output value based on
their smoke chamber condition and the CPU maintains a
current value, peak value, and an average value for each
sensor. 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.
TrueAlarm Addressable Sensor Reference
TrueAlarm Photo
Sensor with Base
TrueAlarm Photo/Heat
Sensor in CO Base
Programmable sensitivity
of each sensor can be selected
at the control panel for different levels of smoke obscuration
(shown directly in percent) or for specific heat detection
levels. To evaluate whether the sensitivity should be revised,
the peak value is stored in memory and can be easily read
(or downloaded as a report) and compared to the alarm
threshold directly in percent.
CO sensor bases
combine an electrolytic CO sensing
module with a TrueAlarm analog sensor to provide a single
multiple sensing assembly using one system address. The
CO sensor can be enabled/disabled, and can be used in
LED/Switch modes and custom control. (refer to data sheet
S4098-0052 for details)
TrueAlarm heat sensors
can be selected for fixed
temperature detection, with or without rate-of-rise detection.
Utility temperature sensing is also available, typically to
provide freeze warnings or alert to HVAC system problems.
Readings can selected as either Fahrenheit or Celsius.
TrueSense Early Fire Detection.
Multi-sensor
4098-9754 provides photoelectric and heat sensor data
using a single 40070ES IDNet+ address. The panel
evaluates smoke activity, heat activity,
and their
combination
, to provide TrueSense early detection. For
more details on this operation, refer to data sheet
S4098-0024.
Diagnostics and Default Device Type
Sensor Status.
TrueAlarm operation allows the control
panel to automatically indicate when a sensor is almost
dirty, dirty, and excessively dirty. The NFPA 72
requirement for a test of the sensitivity range of the
sensors is fulfilled by the ability of TrueAlarm operation
to maintain the sensitivity level of each sensor. CO
Sensors track their 10 year active life status providing
indicators to assist with service planning. Indicators occur
at: 1 year, 6 months, and end of life.
Modular TrueAlarm sensors
use the same base and
different sensor types (smoke or heat sensor) and can be
easily interchanged to meet specific location requirements.
This allows intentional sensor substitution during building
construction when conditions are temporarily dusty.
Instead of covering smoke sensors (causing them to be
disabled), heat sensors may be installed without
reprogramming the control panel. The control panel will
indicate an incorrect sensor type, but the heat sensor will
operate at a default sensitivity to provide heat detection
for building protection at that location.
IDNet+ Device Wiring Reference
IDNet+ Addressable Channel Capacity.
The
4007ES provides an isolated output IDNet+ signaling
line circuit (SLC) that supports up to 250 addressable
monitor and control points intermixed on the same pair of
wires. (250 total requires two 4007-9803 IDNet+ Loop
Expansion Modules.)
IDNet+ SLC Wiring Specifications
Maximum Distance
from Control Panel
per Device Load
0 to 125 4000 ft (1219 m); 50 ohms
126-250 2500 feet (762 m); 35 ohms
Total Wire Length Allowed With
“T” Taps for Class B Wiring
Up to 12,500 ft (3.8 km);
0.60 µF
Maximum Capacitance
Between IDNet+ Channels
1 µF
Loading per device
0.8 mA supv., 1 mA alarm;
2 mA per activated device LED
Wire Type and Connections
Shielded or unshielded,
twisted or untwisted wire*
Connections
Terminal blocks for 18 to
12 AWG
Compatibility includes: IDNet communicating devices and
TrueAlarm sensors
including
QuickConnect and QuickConnect2
sensors; see data sheet S4090-0011 for additional reference
* Some applications may require shielded wiring. Review your
system with your local Simplex product supplier.
4
S4007-0002-6 11/2015
IDNet+ Addressable Device Control
