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Omega Vehicle Security OMG-COMM2-EX manual Appendix D Asynchronous Communications

Models: OMG-COMM2-EX

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Appendix D - Asynchronous Communications

Appendix D - Asynchronous Communications

Serial data communications implies that individual bits of a character are transmitted consecutively to a receiver that assembles the bits back into a character. Data rate, error checking, handshaking, and character framing (start/stop bits) are pre -defined and must correspond at both the transmitting and receiving ends.

Asynchronous communications is the standard means of serial data communication for PC compatibles and PS/2 computers. The original PC was equipped with a communication or COM: port that was designed around an 8250 Universal Asynchronous Receiver Transmitter (UART). This device allows asynchronous serial data to be transferred through a simple and straightforward programming interface. Character boundaries for asynchronous communications are defined by a starting bit followed by a pre -defined number of data bits (5, 6, 7, or 8). The end of the character is defined by the transmission of a pre -defined number of stop bits (usually 1, 1.5 or 2). An extra bit used for error detection is often appended before the stop bits.

Idle state of

 

line

5 to 8 Data Bits

 

1

0

 

Odd, Even

 

 

 

 

 

 

 

 

or

 

 

Remain Idle or

 

Unused

 

 

next start bit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P

STOP

 

 

 

 

 

 

 

 

 

 

 

BIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1.52

Figure 8 - Asynchronous Communications Bit Diagram

This special bit is called the parity bit. Parity is a simple method of determining if a data bit has been lost or corrupted during transmission. There are several methods for implementing a parity check to guard against data corruption. Common methods are called (E)ven Parity or (O)dd Parity. Sometimes parity is not used to detect errors on the data stream. This is refereed to as (N)o parity. Because each bit in asynchronous communications is sent consecutively, it is easy to generalize asynchronous communications by stating that each character is wrapped (framed) by pre-defined bits to mark the beginning and end of the serial transmission of the character. The data rate and communication parameters for asynchronous communications have to be the same at both the transmitting and receiving ends. The communication parameters are baud rate, parity, number

of

data

bits

per

character,

and

stop

bits

(i.e. 9600,N,8,1).

OMG-COMM2-EX

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Omega Vehicle Security OMG-COMM2-EX manual Appendix D Asynchronous Communications, Asynchronous Communications Bit Diagram
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OMG-COMM2-EX specifications

The Omega Vehicle Security OMG-COMM2-EX is a state-of-the-art vehicle security system designed to offer unparalleled protection and convenience for vehicle owners. This cutting-edge system integrates advanced technologies and features that ensure optimal safety and usability.

One of the standout features of the OMG-COMM2-EX is its robust two-way communication capability. This allows users to remotely control and monitor their vehicles through a user-friendly interface. The system employs a high-frequency radio signal which provides reliable communication over extended distances, making it ideal for urban environments where traditional methods may falter.

The OMG-COMM2-EX system is equipped with a comprehensive security suite that includes perimeter monitoring, motion detection, and shock sensors. These sensors work together to detect unauthorized entry or tampering with the vehicle, alerting the owner immediately via notifications on their mobile device. The system's response is rapid, providing an extra layer of security that can deter potential thieves effectively.

Another noteworthy characteristic of the OMG-COMM2-EX is its easy installation process. Designed with usability in mind, this system can be fitted into a wide variety of vehicles without the need for extensive modifications or complex wiring. Coupled with a detailed installation guide, vehicle owners can have peace of mind knowing that their system is installed correctly, enhancing overall security.

In addition to its security features, the OMG-COMM2-EX also offers convenience through its integration with smart devices. Users can control various functions such as remote start, keyless entry, and vehicle immobilization from their smartphones, making daily operations seamless. The system also offers programmable features, allowing users to customize the alerts and notifications they receive based on personal preferences.

The technology behind the OMG-COMM2-EX includes advanced algorithms that enhance the accuracy of its sensors, reducing false alarms and enhancing reliability. This aspect is particularly important for urban users who may face environmental challenges that could trigger less sophisticated systems.

Overall, the Omega Vehicle Security OMG-COMM2-EX offers a compelling combination of security, convenience, and advanced technology. With features designed to protect vehicles from theft while providing ease of use for owners, it represents a significant advancement in vehicle security solutions. The integration of smart technology enhances user experience, making the OMG-COMM2-EX an excellent choice for anyone looking to safeguard their vehicle effectively.