Moxa CP-132UL-I-T ; 2-Port RS-422/485 Universal-PCI, with isolation content_copy

The Moxa CP-132UL-I-T is a 2-port universal PCI serial card developed for industrial automation applications requiring PC-based data acquisition over long distances and in multi-point topologies. The device supports the serial standards RS-422 and RS-485 and is specifically designed for use in environments with high demands for reliability and communication performance. The card features integrated protection functions and is designed for operation over a wide temperature range, making it suitable for demanding industrial operating conditions.

Applications
The CP-132UL-I-T is suitable for applications where multiple serial devices are connected to a PC via a shared line, for example in process automation, building automation, or machine control. The RS-485 multidrop function allows connection of up to 31 devices in a daisy-chain topology over a distance of up to 1.2 km. The card is therefore ideal for systems requiring central control or data acquisition from multiple distributed end devices.

Functions and Features in Detail
The card offers two serial ports with a maximum baud rate of 921.6 kbps, enabling fast data transmission. The integrated ADDC® technology (Automatic Data Direction Control) ensures precise control of data direction during RS-485 communication, simplifying the use of complex RS-485 networks. The card features a 128-byte FIFO buffer and integrated software flow control, which enhances data transmission efficiency. Integrated LED indicators for transmit (Tx) and receive (Rx) at each port enable visual monitoring of communication activity.

Technology Explained Simply
The CP-132UL-I-T is based on the Turbo Serial Engine™ chip, which is responsible for the card’s high performance. This chip supports not only high data rates but also burst mode, which accelerates the transmission of large data volumes. The card is compatible with 3.3 V and 5 V PCI buses as well as PCI-X buses, ensuring broad usability in various PC systems. The electrical isolation of 2 kV protects the card and the host computer from voltage spikes caused by electrical interference or network faults.

Compatibility and Accessories
The card is equipped with a DB25 connector, enabling connection to standard serial cables. Driver support includes a wide range of operating systems, including various Windows versions (including embedded systems), Linux kernels from 2.4.x to 5.x, and UNIX systems such as QNX, SCO OpenServer, UnixWare, Solaris, and FreeBSD. The card is thus suitable for a broad range of industrial and embedded systems.

Mounting and Installation
The CP-132UL-I-T features an MD1 low-profile form factor, suitable for small PC enclosures. Installation is performed by inserting the card into a free PCI slot of the computer. The card is designed for use with up to eight parallel boards per PC, enabling scaling of serial interface capacity. Installation requires no special tools or additional components.

Operational Advantages
The card offers high reliability due to integrated isolation and robust construction. Support for high baud rates and the FIFO buffer ensure efficient data transmission, even under heavy loads. Broad operating system compatibility and support for various serial protocols increase flexibility when integrating into existing systems. The operating temperature range of -40 to +85 °C makes the card suitable for use in extreme environments, as commonly found in industrial applications.

General
Serial standards	RS-422, RS-485
Maximum baud rate	921.6 kbps
FIFO memory	128 Byte
Insulation	2 kV

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