Simplex 4090-9001 Addressable IAM Module

The Simplex 4090-9001 is an Individual Addressable Module (IAM) that connects initiating devices with normally open dry contacts to an IDNet circuit. It assigns a specific address to the connected device and supervises alarm conditions, trouble conditions, and field wiring. Its compact design, NEMA 2 enclosure, and screw terminals allow installation in a standard single-gang electrical box. Contact WIS to confirm compatibility with your system.

Additional information

The Simplex 4090-9001 Individual Addressable Module (IAM) integrates one initiating device, or multiple devices installed at the same location, into an addressable fire alarm system.

Power and communication are supplied through a single pair of wires connected to the IDNet circuit. The module supervises normally open dry contacts and the wiring connected to an end-of-line resistor. When a contact closes, the module sends the condition to the fire alarm control panel, which activates the programmed alarm or response. An open circuit in the supervised wiring is reported as a trouble condition.

Main features:

  • One individual IDNet address per module.
  • Supervised Class B monitoring of normally open dry contacts.
  • Power and communication through the same IDNet wire pair.
  • Location-specific identification of the connected device.
  • Contact status tracking or latching of momentary conditions.
  • Detection of normal, open-circuit, short-circuit, and current-limited conditions.
  • Ability to monitor a tamper switch and a waterflow switch through one addressable point when the appropriate resistors are used.
  • Compact thermoplastic enclosure with a NEMA 2 rating.
  • Screw terminals for secure input and output wiring connections.
  • Designed for installation in a standard single-gang electrical box.

Documented technical specifications:

  • Model: Simplex 4090-9001.
  • Product type: Supervised Individual Addressable Module.
  • Communication: Two-wire IDNet circuit.
  • Input: Normally open dry contacts.
  • Address capacity: One address per module.
  • Wire size: 18 to 14 AWG.
  • Distance from the IAM to the contacts: Up to 500 ft (152 m) without protectors and 400 ft (122 m) with Simplex 2081-9044 overvoltage protectors.
  • IDNet wiring distance: Up to 2,500 ft (762 m) from the fire alarm control panel and up to 10,000 ft (3,048 m) of total wiring, including T-taps.
  • Dimensions: 1 9/16 × 1 3/4 × 1 1/4 in. (40 × 44 × 32 mm).
  • Operating temperature: 32 to 120 °F (0 to 49 °C), for indoor use.
  • Humidity range: Up to 93% relative humidity at 100 °F (38 °C).
  • Supervision resistor: 6.8 kΩ, ½ W.
  • Enclosure material: Black thermoplastic with a NEMA 2 rating.
  • Compatibility listed in the datasheet: Simplex 4010 addressable fire alarm control panels.

The referenced documentation identifies the model as UL and ULC Listed, FM Approved, and accepted by NYC MEA. Because the datasheet is an older publication, these approvals and compatibility with current fire alarm control panels should be verified before specifying the module for a project.

The Simplex 4090-9001 provides a practical method for adding conventional initiating devices to an addressable fire alarm system. Request a quote from WIS and consult a specialist to confirm compatibility with your fire alarm control panel and system configuration.