General
Data bits	5, 6, 7, 8
Stop bits	1, 1.5, 2
MTBF	1.681.099 Stunden

The CP-132EL-I-DB9M from Moxa is a compact PCI Express interface card with two serial RS-422/485 ports, specifically developed for use in industrial automation solutions. It enables reliable data transmission over long distances, particularly in RS-485 networks, where up to 31 devices can be connected over a distance of up to 1.2 km. The card is designed for use in industrial environments where robust and stable communication connections are required. The galvanic isolation of 2 kV protects sensitive system components from voltage spikes and potential differences, which is particularly advantageous in demanding applications.

Applications

The CP-132EL-I-DB9M is suitable for applications in industrial automation, such as communication with sensors, actuators, control devices, or machine controls. It is frequently used in systems based on serial interfaces, such as in manufacturing automation, power supply, or process monitoring. The support for RS-422 and RS-485 enables the connection of various devices using different communication protocols. The card is also suitable for use in space-saving industrial PCs, as it is designed in a low-profile format.

Functions and Features in Detail

The card features two serial ports that support both RS-422 and RS-485. Data transmission occurs at baud rates from 50 bps to 921.6 kbps, with the maximum speed sufficient for fast data transfer in time-critical applications. The FIFO buffer size is 128 bytes, enabling efficient data processing and reducing buffer overflows. Flow control is software-based via XON/XOFF, allowing easy integration into existing systems. Integrated LEDs for each port provide visual status indication for transmit and receive states, simplifying maintenance and troubleshooting.

Technology Explained Simply

The card is based on a chipset compatible with the 16C550C and operates over the PCI Express 1.0 bus. The connector socket is internally configured as DB25, with an included cable (CBL-M25M9x2-50) providing the connection to two external DB9 male connectors. Signal assignment includes standards for RS-422 (Tx+, Tx-, Rx+, Rx-, GND), RS-485 in 4-wire mode (Tx+, Tx-, Rx+, Rx-, GND) and in 2-wire mode (Data+, Data-, GND). The galvanic isolation of 2 kV protects electronic components from electrical disturbances caused by different ground potentials or transients.

Compatibility and Accessories

The CP-132EL-I-DB9M supports a wide range of operating systems, including Windows (DOS to Windows 10, Server 2019, CE 5.0/6.0, XP Embedded), Linux (kernel 2.4 to 5.x), and UNIX (Solaris 10, UnixWare 7, SCO OpenServer 5/6, QNX 6). Driver support ensures high compatibility with various platforms. An optional terminal block adapter (Mini DB9F-to-TB) is available, enabling direct connection to terminal blocks, which is advantageous in certain industrial installations.

Installation and Mounting

Installation is performed by inserting the card into a PCI Express slot of an industrial PC. Due to its low-profile format, the card is also suitable for compact systems with limited space. The connection cable (CBL-M25M9x2-50) enables easy connection to external devices via DB9 connectors. The integrated LEDs simplify installation, as the data transmission status is directly visible.

Operational Advantages

The card offers high reliability through galvanic isolation and robust construction. Support for up to eight cards per system enables flexible scaling. Broad driver support and integrated status LEDs reduce maintenance and troubleshooting time. The operating temperature range of 0 to 55 °C and storage temperature range of -20 to 85 °C make the card suitable for a wide range of operating conditions. Power consumption is 636 mA at 3.3 VDC, which is within the typical range for PCI Express cards. The MTBF (Mean Time Between Failures) is 1,681,099 hours, indicating a high service life. The warranty period is five years.

Certifications and Standards

The card complies with EMC/EMI standards EN 55032/35, CISPR 32, and FCC Part 15B Class B, ensuring low electromagnetic interference. EMS certification according to IEC 61000-4-2 to -4-8 ensures immunity against electrical disturbances. Environmental standards RoHS, CRoHS, and WEEE are met, ensuring environmental compatibility and safe disposal.

Scope of Delivery

The scope of delivery includes a CP-132EL-I-DB9M PCIe card, a connection cable (CBL-M25M9x2-50, M25 to 2 x DB9, 50 cm), a quick start guide, and a warranty card.

Optional Accessories

An optional terminal block adapter (Mini DB9F-to-TB) is available, enabling direct connection to terminal blocks.