General
FIFO buffer	128 Byte
Number of serial ports	4
RS-422/485 ports	4
Data bits	5, 6, 7, 8
Stop bits	1, 1.5, 2
MTBF	480.209 Stunden (Telcordia SR332)

The CP-134U-T from Moxa is a 4-port serial card for industrial use, based on the Universal PCI bus interface and designed for operation in environments with extended temperature requirements. The card offers universal RS-232/422/485 support and is designed for use in automation systems, industrial controls, and data acquisition systems. With an operating temperature range of -40 to 85 °C, it is suitable for applications in extreme environments, such as in manufacturing, heavy industry, or outdoor installations.

Applications

The card is particularly suitable for applications requiring high reliability and long communication distances. The RS-422/485 ports enable communication over distances up to 1.2 km and support multi-point connections with up to 31 devices. This makes it ideal for decentralized control systems, such as in process automation, machine control, or building automation. The integrated Tx/Rx LEDs per port facilitate diagnosis and status monitoring during operation.

Functions and Features in Detail

The CP-134U-T features four serial ports, with two ports additionally offering RS-232 functionality. The card supports baud rates from 50 bps to 921.6 kbps, enabling flexible adaptation to different devices and protocols. Data transmission occurs with 5, 6, 7, or 8 data bits, 1, 1.5, or 2 stop bits, and parity modes including None, Even, Odd, Space, Mark. Flow control can be managed via RTS/CTS or XON/XOFF. The Turbo Serial Engine™ from Moxa ensures a high data throughput rate of over 700 kbps and reliable data processing through a 128-byte FIFO buffer.

Technology Explained Simply

The card is designed for installation in standard PCs with a 32-bit Universal PCI interface (3.3/5 V, PCI-X compatible). The maximum number of cards installable per PC is eight. Serial connections are made via a DB44 socket, which connects to end devices using a cable. Power supply is provided through the PCI bus at 5 VDC; power consumption is 180 mA.

Compatibility and Accessories

The CP-134U-T comes with comprehensive driver sets for various operating systems, including Windows (DOS through Windows 10/Server 2019), Linux (kernel 2.4 to 5.x), and UNIX systems such as QNX, SCO, UnixWare, Solaris, and FreeBSD. This facilitates integration into existing system environments. Signal assignment is defined for RS-232, RS-422, and RS-485 (2- and 4-wire), with RS-485 connections suitable for multi-point networks. The card includes a DB44-to-4x-DB9M/DB25M cable (model-dependent) in the delivery scope, enabling connection to standard serial devices.

Installation and Mounting

Installation is performed by inserting the card into a free PCI slot of the computer. The card is compact, with dimensions of 82.5 x 120 mm. The integrated LEDs per port allow visual monitoring of data transmission. Software installation is done via the provided drivers, which are included in the delivery scope. The card is designed for use in industrial environments subject to high mechanical and electrical stresses.

Operational Advantages

The card offers high operational reliability due to its robust construction and support for high baud rates. The automatic data direction control (ADDC®) reduces configuration complexity and increases communication reliability. The 5-year warranty and an MTBF of 480,209 hours (according to Telcordia SR332) highlight its longevity and reliability. Certifications according to EN 55032/35, CISPR 32, FCC Part 15B Class B, and IEC 61000-4-2/3 ensure electromagnetic compatibility and safe operation in electromagnetically noisy environments.

Delivery Contents

The delivery includes the CP-134U-T card, a DB44-to-4x-DB9M/DB25M cable (model-dependent), a Quick Installation Guide, and warranty and substance disclosure documents. The cables are intended for connection to standard serial devices and simplify installation.

Certifications and Environmental Conditions

The card is designed for operation at humidity levels of 5 to 95 % (non-condensing). Storage temperature is -40 to 85 °C. Certifications include EMC and EMI requirements necessary for use in industrial facilities. The card is not intended for use in explosive environments, as no corresponding certifications (e.g., ATEX, IECEx) are mentioned.