Engenuity Systems EXM-LTNI EXM to LonTalk Network Interface Module
The Engenuity Systems EXM-LTNI is an interface module designed to connect an EXM system to a LonTalk network. This module enables communication and data exchange between the EXM system and devices on the LonTalk network, facilitating integration and interoperability in building automation and control applications.
- Model
- Engenuity Systems EXM-LTNI
- Calibration
- Available on request
- Price
- $450
- Status
- In stock
- RFQ ref
- EXM-LTNI
This unit
The Engenuity Systems EXM-LTNI is a network interface module that bridges EXM systems with LonTalk networks, enabling bidirectional communication and device interoperability in building automation and control applications. Built around the Neuron® 3150® Chip, the module facilitates seamless data exchange between diverse control platforms operating on the LonTalk protocol.
Technical Specifications
Processor Core: Neuron® 3150® Chip
Memory: 32 KB re-programmable flash memory; 32 KB RAM
Clock Speed: 10 MHz crystal oscillator
Firmware: Standard Neuron Chip firmware with extensions for automatic transceiver parameter configuration, packet transmission signal output, and manual device recovery
Microprocessor Interface (MIP): Supports memory-mapped I/O or 8-bit parallel data bus with three control lines and optional up-link interrupt; enables asynchronous updates from up to 4,096 network variable connections
Transceiver Support: Compatible with standard LONWORKS transceivers; transceiver type selection via five ID pins
Network Activity Output: Packet send output pin asserts low for approximately 40 ms when a packet is transmitted from network to MAC processor
Additional Outputs: Two supplementary bit outputs - one dedicated to packet send indication, one configurable as general-purpose output or up-link data interrupt request
Key Features
Miniature circuit card form factor for compact integration
Manual device recovery capability via service and reset input sequencing for reloading defective application software
LNS (LONWORKS Network Services) architecture compatibility for integration with compliant management tools
Flexible host processor interface supporting legacy and memory-mapped architectures
Typical Applications Building automation systems requiring interoperability between EXM control platforms and LonTalk-based field devices and sensors.
Compatibility & Integration The module connects directly to EXM systems and LonTalk networks via dedicated connectors for host interface, network interface, power input, application I/O, and transceiver connection. MIP functionality enables operation as either a standalone applications processor or as a network interface for external host processors.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 10 MHz |
Engenuity Systems EXM-LTNI — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Engenuity Systems EXM-LTNI. Calibration covers I/O channel accuracy per specification, analog output and input calibration to rated accuracy, and functional communication interface test (serial, Ethernet, fieldbus). All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Engenuity Systems EXM-LTNI faults: blown I/O fuses, failed analog modules, power supply capacitor failure. Common faults include blown I/O protection fuses, failed analog I/O modules, power supply capacitor failure, and serial or Ethernet communication port damage.
Engenuity Systems EXM-LTNI price
This Engenuity Systems EXM-LTNI is listed at $450. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Engenuity Systems EXM-LTNI calibration cost
NIST-traceable calibration for the Engenuity Systems EXM-LTNI is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers I/O channel accuracy per specification, analog output and input calibration to rated accuracy, and functional communication interface test (serial, Ethernet, fieldbus). Turnaround is 1 to 3 business days after receipt. See full calibration details →
