Black Box RS-485, IC183C manual RS-422/485 Serial Interface PLUS, 4-PORT

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RS-422/485 SERIAL INTERFACE PLUS, 4-PORT

An extra bit used for error detection is often appended before the stop bits. 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 and (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 (for example, 9600,N,8,1).

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Contents RS-422/485 Serial Interface Plus, 4-Port EMC Directive Statement RS-422/485 Serial Interface PLUS, 4-PORTContents RS-422/485 Serial Interface PLUS, 4-PORT Specifications What’s Included Factory-Default SettingsIntroduction OverviewTechnical Description WHY USE AN ISP? Address Selection Card SetupSwitch OFF IRQ Selection Jumper SelectionsInterrupt Modes 5 6 7 9 10 11 12J1A J2A RS-485 Enable Modes Headers J1D J4D, RS-422 Interface Mode Examples J1D J4DHeaders J1D J4D, RS-485 Auto Enabled, with Echo Line Termination Headers J1D J4D, RS-485 RTS Enabled, with EchoName Function Clock ModesDIV1 DIV2 DIV4 13. Clocking Mode Divide By Software Installation InstallationHardware Installation Troubleshooting RS-422/485 Serial Interface PLUS, 4-PORT Appendix a Connector Pin Assignments Table A-2. DB37 Pin Assignments J1A J1B RS-422 Appendix C Electrical InterfaceRS-485 Appendix D Asynchronous Communications Figure D-1. Asynchronous Communications Bit DiagramRS-422/485 Serial Interface PLUS, 4-PORT Copyright 2000. Black Box Corporation. All rights reserved
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IC183C, RS-422, RS-485 specifications

The Black Box IC113C and IC175C are part of a series of versatile RS-485 interface converters designed to facilitate reliable data transmission over long distances. RS-485 is a standard defining the electrical characteristics of drivers and receivers for use in serial communications systems, and these specific Black Box converters exemplify the technology's adaptability and robustness.

The IC113C is an RS-485 to RS-232 converter, providing a seamless transition between these two common serial communication protocols. With a compact design, it boasts an operating temperature range of -40 to 85 degrees Celsius, making it suitable for harsh environmental conditions. Its key feature includes the ability to extend the communication distance up to 4,000 feet, which is ideal for industrial applications where devices may be far apart. Additionally, the IC113C includes built-in surge protection, ensuring that the device can withstand electrical noise and spikes, ultimately increasing the system's reliability.

On the other hand, the Black Box IC175C serves as an RS-485 to USB converter, bridging older serial devices with modern USB interfaces. This converter is critical for users wanting to connect legacy equipment to contemporary computing systems. Featuring a plug-and-play design, the IC175C is easy to install with no external power supply required, as it is powered directly through the USB connection. It also supports data rates up to 115.2 Kbps, ensuring fast and efficient data transfer.

Both models employ differential signaling, which enhances noise immunity and allows for greater transmission distances compared to single-ended communication standards. Furthermore, the converters support multiple nodes on the same bus, accommodating a network of devices without requiring complex wiring schemes.

In summary, the Black Box IC113C and IC175C offer essential features that cater to diverse industrial and commercial applications. With their robust construction, extensive operating ranges, and compatibility with various communication protocols, these converters enhance system interoperability and provide durable solutions for long-distance data communication needs. Whether connecting legacy systems or extending communication capabilities, these devices exemplify reliability and efficiency in modern data transmission technologies.
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