Description
Inovonics EN4232MR EchoStream 32-Zone Multi-Condition Receiver with Relays | 902–928 MHz
The Inovonics EN4232MR EchoStream® 32-Zone Multi-Condition Receiver with Relay Outputs provides large-capacity wireless expansion for hardwired alarm panels and standalone relay-based security applications. The receiver programs and supervises up to 32 compatible EchoStream single-condition or multi-condition transmitters and converts their wireless alarm activity into conventional Form C relay outputs.
Eleven programmable Form C alarm relays provide substantially more output capacity than the smaller EN4204R and EN4216MR receivers, while a dedicated Form C fault relay supports centralized reporting of transmitter tamper, low-battery, supervision-loss, and other programmed trouble conditions. Compatible multi-condition transmitters can report as many as four distinct alarm inputs, with individual conditions mapped to selected relay outputs.
A two-line LCD provides point status, event history, signal-strength information, output assignments, and password-protected programming. Operating within the North American 902–928 MHz frequency range, the EN4232MR also includes adjustable transmitter supervision, case and back-tamper protection, RF-jam detection, internal antennas, and EchoStream frequency-hopping spread-spectrum technology.
Important Output-Capacity Notice: The EN4232MR supports up to 32 wireless points but does not provide 32 individual relay outputs. It provides 11 Form C alarm relays and one Form C fault relay. Multiple transmitter points or alarm conditions may be assigned to a shared relay output.
Key Features and Benefits
- 32 wireless points: Programs and supervises up to 32 compatible EchoStream transmitters or repeaters.
- Multi-condition device support: Recognizes as many as four compatible alarm inputs from an individual transmitter.
- Eleven Form C alarm relays: Provides flexible normally open, normally closed, and common connections.
- Dedicated Form C fault relay: Supports centralized reporting of programmed transmitter and system trouble conditions.
- Flexible condition mapping: Maps alarms, tampers, low batteries, inactive devices, and repeater power-loss events to selected outputs.
- Two-line LCD: Displays point status, alarms, faults, output assignments, event history, signal strength, and programming menus.
- 50-event history: Stores recent alarm, tamper, inactive, and receiver-reset events for troubleshooting.
- Programmable relay modes: Supports follower, latching, momentary, and toggle output behavior.
- RF diagnostic tools: Displays signal quality, signal level, and signal margin for registered wireless devices.
- Secure wireless design: Includes back tamper, enclosure protection, RF-jam detection, power-loss reporting, and internal antennas.
Technical Specifications
| Manufacturer | Inovonics Wireless Corporation |
| Model | EN4232MR |
| Product Type | 32-zone multi-condition receiver |
| Wireless Platform | Inovonics EchoStream® |
| North American Frequency | 902–928 MHz |
| Receiver Technology | Frequency-hopping spread spectrum |
| Wireless Points | Up to 32 transmitters or repeaters |
| Alarm Outputs | 11 Form C relay outputs |
| Fault Outputs | 1 Form C relay output |
| Total Form C Relays | 12 |
| Relay Rating | 1 A at 28 VDC; 0.5 A at 30 VAC resistive |
| Output Modes | Follower, latching, momentary or toggle |
| Event Log | 50 events |
| Point Identification | Up to 8 descriptive characters per point |
| Supervision Range | 0–99 hours; 60-minute default |
| Power Requirement | 11–14 VDC; 500 mA |
| Reset Input | Momentary normally open contact closure |
| Dimensions | 7 × 8.75 × 1.63 in. |
| Weight | 18.4 oz. (522 g) |
| Operating Temperature | 32°F to 140°F (0°C to 60°C) |
| Operating Humidity | Up to 90% relative humidity, non-condensing |
| Regulatory Certifications | Security Level 1 CAN/ULC S304:2016, UL 985, UL 1023 and UL 2610 |
How the EN4232MR Integrates Wireless Devices
Each compatible EchoStream transmitter or repeater is registered to one of the receiver’s 32 wireless points. Alarm and trouble conditions from that device are then mapped to the appropriate Form C relay outputs. When the receiver detects a programmed condition, the selected relay changes state and presents a conventional dry-contact signal to the connected panel or equipment.
This design allows an installer to add a substantial number of EchoStream wireless devices to a compatible hardwired system without requiring an RS-232 or Ethernet software integration. The connected panel continues to process each relay activation as a conventional hardwired input.
Advanced Multi-Condition Programming
Compatible multi-condition EchoStream transmitters can report more than one alarm input or operating condition. The EN4232MR can recognize as many as four compatible alarm inputs from a single security transmitter and map each condition to a selected output and output type.
This capability gives installers greater control over how wireless alarm events are presented to a hardwired panel. Separate alarm conditions can be assigned to individual relays, while multiple devices or conditions can share an output when separate identification is unnecessary.
LCD Programming and Diagnostic Tools
Point Status
Displays alarm, tamper, low-battery, line-power-loss, and inactive conditions for programmed points.
50-Event Log
Provides access to the 50 most recent alarm, tamper, inactive, and receiver-reset events.
Signal Strength
Displays good, weak, or no signal and provides detailed signal-level and signal-margin readings.
Install and Service Menu
Supports point setup, device registration, signal testing, output mapping, password changes, and factory configuration.
Independently Programmable Relay Modes
Follower
The relay follows the current alarm or fault state reported by the assigned wireless device.
Latching
The relay activates when the condition occurs and remains active until the receiver is reset.
Momentary
The relay provides a timed output after a new activation is received from the assigned device.
Toggle
The relay changes state whenever the assigned transmitter sends a new activation.
Factory Output Mapping
The EN4232MR arrives with a factory-programmed output arrangement that groups transmitter points across the available alarm relays. Installers can use the defaults or customize point and condition mapping for the application.
| Output | Default Assignment |
|---|---|
| Outputs 1–10 | Alarm conditions from grouped transmitter points |
| Output 11 | Transmitter tamper conditions |
| Fault Output | Low battery, supervision loss, inactivity, and repeater line-power loss |
Output assignments should be reviewed and customized to match the connected panel, application, alarm response, and applicable listing requirements.
Common EN4232MR Applications
- Large hardwired alarm-panel expansions
- Commercial intrusion detection
- Wireless panic, hold-up, and duress systems
- Door, window, and perimeter monitoring
- Multi-condition wireless security devices
- Retail and financial security systems
- Healthcare and institutional security
- Campus and multi-building installations
- Wireless fire-alarm applications where approved
- Standalone wireless-to-relay control applications
EchoStream Device Compatibility
Current Inovonics installation literature identifies support for compatible single-condition and multi-condition devices, including:
- EN1215EOL Universal Transmitter
- EN1215WEOL Door/Window Transmitter
- EN1223D Double-Button Pendant
- EN1235SF Fixed-Position Hold-Up Transmitter
- EN1235DF Double-Button Hold-Up Transmitter
- EN1242 and EN1244 Smoke Detectors
- EN1245 Carbon Monoxide Detector
- EN1249 Billtrap Transmitter
- EN1261HT High-Traffic Motion Detector
- EN5040 Series High-Power Repeaters
Compatibility warning: Not every EchoStream device is approved for every application. Confirm the transmitter model, available conditions, check-in interval, panel interface, repeater configuration, and applicable listing requirements before purchasing.
EchoStream Add-On Receiver Comparison
| Feature | EN4204R | EN4216MR | EN4232MR |
|---|---|---|---|
| Wireless Points | 4 | 16 | 32 |
| Alarm Relays | 4 | 5 | 11 |
| Fault Relays | 1 | 1 | 1 |
| Multi-Condition Support | Basic point programming | Yes | Yes |
| LCD and Event Log | No | Yes | Yes |
| Best Application | Small four-point expansion | Medium 16-point system | Large 32-point system |
What to Verify Before Ordering
- Point capacity: The EN4232MR supports up to 32 registered transmitters or repeaters.
- Relay capacity: It provides 11 alarm relays and one fault relay—not 32 separate outputs.
- Panel compatibility: Confirm that the connected equipment accepts Form C dry-contact inputs.
- Zone wiring: Determine the required normally open, normally closed, and end-of-line resistor configuration.
- Condition mapping: Identify which alarms and trouble conditions require separate outputs and which may share a relay.
- Transmitter support: Verify every EchoStream device and the alarm conditions required from each model.
- Power supply: Provide unswitched, uninterrupted, regulated 11–14 VDC power rated for 500 mA.
- RF coverage: Complete an EchoStream site survey and determine whether compatible repeaters are required.
- Compliance: Confirm the complete receiver, transmitter, panel, power, repeater, and wiring configuration meets applicable standards.
Installation and RF Planning Guidance
- Install the receiver indoors and within 98.5 feet of the connected control unit.
- Use 18–22 AWG wiring and an unswitched, uninterrupted, regulated power supply.
- Mount the receiver away from metal ductwork, pipes, wire mesh, safes, and enclosed metal cabinets.
- Install the housing flush against the mounting surface so the back-tamper mechanism operates correctly.
- Keep the receiver accessible for programming, testing, and future maintenance.
- Use an EchoStream survey kit to measure signal level and signal margin.
- Set each supervision interval longer than the associated transmitter’s check-in frequency.
- Map alarm, tamper, low-battery, inactive, and repeater power-loss conditions to the appropriate outputs.
- Perform a walk test with every registered transmitter after installation.
- Test the installed security system regularly as directed by Inovonics.
Professional installation required: The EN4232MR should be installed and maintained by qualified security professionals familiar with relay wiring, alarm-panel programming, EchoStream site surveys, and applicable security standards.
Frequently Asked Questions
What does the Inovonics EN4232MR do?
It receives and supervises as many as 32 compatible EchoStream transmitters or repeaters and maps their wireless alarm and trouble conditions to Form C relay outputs.
Does the EN4232MR provide 32 relay outputs?
No. It supports 32 wireless points but provides 11 Form C alarm relays and one Form C fault relay. Multiple points or conditions may share the same output.
What does multi-condition support mean?
It allows the receiver to recognize as many as four compatible alarm inputs from an individual transmitter and map those conditions to selected relay outputs.
Does the EN4232MR have an event log?
Yes. Its LCD provides access to the 50 most recent alarm, tamper, inactive, and receiver-reset events.
Can the receiver display signal strength?
Yes. It displays good, weak, or no signal and can show detailed signal-level and signal-margin information for active registered devices.
Does the EN4232MR require an RS-232 connection?
No. It connects to compatible panels or equipment through conventional Form C dry-contact relay outputs.
What is the difference between the EN4232MR and EN4216MR?
The EN4232MR supports 32 wireless points and 11 alarm relays. The EN4216MR supports 16 points and five alarm relays. Both support multi-condition devices, LCD programming, signal diagnostics, and event logging.
Can EchoStream repeaters be used with the EN4232MR?
Yes. Compatible EN5040 Series high-power repeaters can help extend wireless coverage when required by the building layout and verified through an RF site survey.
What power does the EN4232MR require?
It requires an unswitched, uninterrupted, regulated 11–14 VDC supply rated for 500 mA.
Manufacturer Documents
Documents are provided by Inovonics Wireless Corporation. Manufacturer specifications, certifications, compatible products, and document locations are subject to change.
High-Capacity EchoStream Wireless Expansion
The Inovonics EN4232MR EchoStream 32-Zone Multi-Condition Receiver delivers high-capacity wireless expansion for hardwired commercial security systems. Its 32 supervised wireless points, multi-condition programming, 11 alarm relays, dedicated fault relay, two-line LCD, signal-strength tools, event history, tamper protection, and RF-jam detection make it a powerful solution for larger installations requiring EchoStream wireless performance without a serial or IP software integration.
