Options 23

4.1.2Multipoint Communication

Multipoint Communication is a system whereby a number of instruments can be addressed over a dual twisted pair interface. Up to 32 instruments can be connected to a common bus using the RS422 and RS485 interfaces as shown below.

To convert the RS422 interface to an RS485 interface, the RS422 (-) Data In Terminal must be connected to the RS422 (-) Data Out Terminal and the RS422 (+) Data In Terminal must be connected to the RS422 (+) Data Out Terminal. These connections will convert the RS422 4 wire interface to the RS485 2 wire interface, as shown in Figure 2.

Each instrument can be configured with a unique address which is used by the Master Controller (e.g., an IBM/PC) to identify each instrument. The Controller will send the address down the line and will alert the relevant instrument. Subsequent software protocol will control the flow of data between the Controller and the Instrument.

Figure 1 RS422 Interface

HP289

Page 30 Page 32
Page 31
Image 31
Epson 214D-1 user manual Multipoint Communication, RS422 Interface HP289
Page 30 Page 32

214D-1 specifications

The Epson 214D-1 is a powerful and compact printer designed for both personal and professional use, standing out in the crowded market of small-format printers. This sleek device leverages advanced printing technologies to deliver high-quality prints with remarkable efficiency and speed.

One of the hallmark features of the Epson 214D-1 is its use of PrecisionCore technology, which enables it to produce sharp, detailed images and crisp text. This technology utilizes a unique micro-electromechanical system (MEMS) for precision droplet control, resulting in prints that boast vibrant colors and enhanced clarity. The printer is capable of handling a variety of media types, including plain paper, photo paper, and even specialty media, making it a versatile tool for various printing needs.

The Epson 214D-1 also features a user-friendly interface, complete with an intuitive control panel that simplifies operation. The printer supports wireless connectivity options, allowing users to print directly from their smartphones and tablets via Wi-Fi Direct or through mobile printing apps. This flexibility makes it easy to print documents and photos on the go, enhancing productivity for both home users and professionals alike.

With a compact design, the 214D-1 can fit easily into small home offices or workspaces, optimizing space without sacrificing performance. The printer also boasts a fast printing speed of up to 15 pages per minute for black-and-white documents and approximately 8 pages per minute for color prints, ensuring that users can keep pace with demanding workflows.

In terms of sustainability, the Epson 214D-1 is designed to be energy efficient, consuming less power during operation and standby modes. Additionally, it supports high-capacity ink cartridges that provide a lower cost-per-page, reducing the frequency of cartridge replacements and minimizing environmental impact.

Overall, the Epson 214D-1 stands as a reliable option for any individual or business looking for a compact, high-performance printer that excels in both quality and efficiency. With its innovative features and technologies, it is well-suited to meet a range of printing requirements while delivering exceptional results each time.
Top Page Image Contents