MX4428 MXP Engineering / Technical Manual

Document: LT0273

MXP Loop Filter Board

 

Both short circuit faults and open circuit faults will be logged as SUPERVISION FAULT, and relay stuck faults will be logged as CONTROL CB FAIL. Only the first fault will be logged. When all relay faults go away, the event logged at the MX4428 will be NORMAL OFF or NORMAL ON as the case may be, regardless of the original fault logged.

9.11

LPS PROCESSING

9.11.1ELD AND POSITION MONITORING

Correct Relay Position

AI0, AI1

Condition

Not activated

AI0 > 200 AND AI1 < 50

Open circuit fault

50 < AI0 <= 110

Short circuit

 

0 <= AI0 <=50

Relay fault

 

Otherwise

Normal

Activated

AI0 > 50

Relay Fault

AI0 <= 50 AND AI1 <= 50

Short circuit

 

AI0 <= 50 AND 50 < AI1 <= 200

Relay Fault

 

Otherwise

Normal

Changes in these states are verified as described in section 9.22.

Both short circuit faults and open circuit faults will be logged as SUPERVISION FAULT, and relay stuck faults will be logged as CONTROL CB FAIL. Only the first fault will be logged. When all relay faults go away, the event logged at the MX4428 will be NORMAL OFF or NORMAL ON as the case may be, regardless of the original fault logged.

9.12

VLC800 PROCESSING

9.12.1GENERAL

The VLC800 is processed like an 814PH, with the following parameters. Tracked Value is fixed at 12.

Alarm Threshold is fixed at 100. (Corresponding to a raw value of 112). Filter Divisor is fixed at 3.

Step Limit is 255 (so essentially there is no step limit). PreAlarm is adjustable at the MX4428.

So the only filtering is the exponential filter with a filter divisor of 3. This gives some filtering, but with a minimal delay.

As the alarm threshold is always 100, the current level (CV-TV) is an indication of the smoke level in terms of % of the alarm threshold programmed into the VLC800 itself.

Page 9-14

24 March 2006

Issue 1.5

Page 123 Page 125
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Image 124
Tyco MX4428 LPS Processing, VLC800 Processing, ELD and Position Monitoring, Correct Relay Position AI0, AI1 Condition
Page 123 Page 125

MX4428 specifications

The Tyco MX4428 is a cutting-edge device known for its robust performance in the realm of wireless communication and sensor acquisition. Tailored for applications in various sectors, the MX4428 is particularly well-suited for industrial automation, environmental monitoring, and smart city initiatives. With its advanced features, the device has gained tremendous popularity among engineers and developers looking for reliability and efficiency in data transmission.

One of the standout features of the MX4428 is its exceptional range, which can extend up to several kilometers under optimal conditions. This long-range capability ensures that data can be transmitted over vast distances without degradation in quality, making it ideal for remote monitoring applications. Additionally, the device operates on multiple frequency bands, providing flexibility in deployment based on specific regional requirements and regulatory guidelines.

The MX4428 utilizes a highly efficient radio protocol that enhances data throughput while reducing power consumption. This asymmetric data transmission method allows for low-duty cycle operation, extending battery life and autonomy. The device's energy efficiency is particularly beneficial in applications where frequent battery replacement would be impractical, such as in environmental sensors and agricultural monitoring systems.

Furthermore, the MX4428 is equipped with comprehensive sensor integration capabilities. It can seamlessly interface with various sensors, making it a versatile choice for collecting a wide range of data types. From temperature and humidity sensors to motion detectors, the MX4428 can serve as a central hub for data gathering and transmission, providing real-time insights into environmental conditions.

Security is also a paramount consideration in the design of the MX4428. It incorporates robust encryption and authentication protocols to safeguard data integrity during transmission. This feature is crucial for applications involving sensitive information or those that require compliance with strict regulatory frameworks.

In summary, the Tyco MX4428 is a powerful and versatile device that boasts a combination of long-range communication, low power consumption, and comprehensive sensor integration capabilities. Its robust security features further enhance its appeal for critical applications across various industries. Whether for industrial, environmental, or smart city use cases, the MX4428 stands out as a reliable solution that meets the demands of modern wireless communication landscapes.
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