Introduction, Overview, What’s Included

DUAL PORT RS-232↔422/485 SERIAL INTERFACE

2. Introduction

2.1 Overview

If you need to operate RS-232, RS-422, or RS-485 devices from your PC, use the Dual Port RS-232/422/485 Serial Interface. Connect to any device that uses the RS-232 interface, such as modems, data-entry terminals, and plotters.

This card allows you to configure two RS-232 ports, two RS-422/485 ports, or one of each. The Dual Port RS-232/422/485 also features greater maximum distance and allows multi-drop communications.

The card also includes a serial utility disk with Seacom, a DOS interrupt and driver package. Seacom allows data to be buffered, eliminating data loss in high-speed data transfers. It also allows more than 4 ports (256 max.) to be configured and utilized under DOS.

The README file on the serial utility disk contains information about the latest changes and revisions. To view this file, insert the diskette into drive A or B and type A:TYPE READ.MEMORE [ENTER] or B:TYPE READ.MEMORE [ENTER].

2.2 What’s Included

Your Serial Interface should come with the following items. If any of these items are missing or damaged, contact Black Box at 724-746-5500.

(1)Dual Port RS-232/422/485 Serial Interface card,

(2)serial utility software diskettes: (1) for 32-bit Windows®,

(1)for DOS and Windows®3.1x,

This manual

IC113C, RS-485, IC175C 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.