General
Maximum baud rate	921,6 kbps
Data bits	5, 6, 7, 8
Stop bits	1, 1.5, 2

The Moxa CP-114EL-I-DB25M is an industrial 4-port PCI Express serial card designed for communication over RS-232, RS-422, and RS-485. It is particularly suitable for applications in industrial automation, point-of-sale terminals, and cash dispensers, where a reliable and robust serial interface is required. The card features a low-profile form factor, making it suitable for compact computer housings. A key feature is galvanic isolation with 2 kV, which protects sensitive equipment in electromagnetically noisy environments. Integrated status LEDs for each port facilitate diagnosis and maintenance by visually indicating transmit and receive status.

Applications

The CP-114EL-I-DB25M is used in environments requiring stable serial communication over multiple ports. Typical applications include industrial control systems communicating with legacy devices, as well as cash registers and payment terminals connected via serial interfaces. The card is also suitable for systems operating in EMC-critical environments, as galvanic isolation prevents interference and voltage spikes.

Features and Specifications in Detail

The card supports a maximum baud rate of 921.6 kbps, enabling high-speed data transmission. Communication parameters include data bits from 5 to 8, stop bits of 1, 1.5, or 2, and parity types such as None, Even, Odd, Space, and Mark. Flow control can be implemented via RTS/CTS (hardware) or XON/XOFF (software). The 128-byte FIFO buffers per port ensure efficient data transmission and reduce processor load. The card is equipped with a 16C550C-compatible communication controller, proven in industrial applications.

Technology Explained Simply

The card uses the PCI Express 1.0 bus, providing a fast and stable connection to the host system. Galvanic isolation with 2 kV protects internal computer components from voltage spikes caused by external devices or power line disturbances. Integrated LEDs for each port indicate data traffic, which is helpful for troubleshooting. The card is designed for operation in a temperature range of 0 to 55 °C, making it suitable for use in controlled indoor environments.

Compatibility and Accessories

The CP-114EL-I-DB25M is compatible with a wide range of operating systems, including Windows (from DOS to Windows 10/Server 2019), Linux (kernel 2.4.x to 5.x), and various UNIX systems such as QNX 6, Solaris 10, and UnixWare 7. The card is supplied with a cable connecting to the DB44 socket on the card and featuring four DB25-M connectors. The card supports up to eight cards per PC, enabling scalability for systems with high connection requirements.

Installation and Mounting

Installation is performed by inserting the card into a PCI Express slot in the computer. The card is designed as a low-profile model, allowing use in compact housings. Drivers are available for the listed operating systems, enabling easy integration. The quick installation guide included in the delivery package supports installation and configuration.

Operational Advantages

The card offers high reliability due to galvanic isolation and robust hardware. Integrated LEDs simplify maintenance, and comprehensive driver support for various operating systems reduces integration time. The maximum baud rate of 921.6 kbps enables fast data transmission, and FIFO buffers ensure efficient data processing. The card is designed for industrial environments and meets required certifications for EMC, EMI, and EMS, including RoHS, CRoHS, and WEEE.

Delivery Contents

The delivery includes the CP-114EL-I-DB25M serial card, a cable with DB44 socket to four DB25-M connectors, a quick installation guide, and a warranty card.

Certifications

The card complies with certifications EN 55032/35 (EMC), CISPR 32, and FCC Part 15B Class B (EMI), as well as IEC 61000-4-2/3/4/5/6/8 (EMS). Environmental certifications include RoHS, CRoHS, and WEEE. The MTBF is 603,671 hours according to Telcordia (Bellcore) TR/SR standard. The manufacturer's warranty is 5 years.

Compatibility

The card is compatible with Windows (DOS to Windows 10/Server 2019, Embedded CE 5.0/6.0, XP Embedded), Linux (kernel 2.4.x to 5.x), and UNIX systems (QNX 6, Solaris 10, UnixWare 7, SCO OpenServer 5/6). The maximum number of cards per PC is eight. The card features a DB44 connector, connected via a cable with four DB25-M connectors.

Accessories

Additional cables available include CBL-M44M9x4-50 (DB44 to 4 x DB9-M, 50 cm) and CBL-M44M25x4-50 (DB44 to 4 x DB25-M, 50 cm), as well as CBL-F9M9-20 (DB9-F to DB9-M, 20 cm) and CBL-F9M9-150 (DB9-F to DB9-M, 1.5 m). These cables can be used depending on the connector type of the connected devices.

Features

The card provides a 128-byte FIFO per port, integrated status LEDs for each port, galvanic isolation with 2 kV, support for RS-232, RS-422, and RS-485, and comprehensive driver support for various operating systems. The card is designed for industrial environments and meets required certifications.

Advantages

The card offers high reliability, robust hardware, easy maintenance via integrated LEDs, fast data transmission via high baud rate, and efficient data processing via FIFO buffers. Comprehensive driver support reduces integration time, and galvanic isolation protects sensitive equipment from interference.