General
FIFO memory	128 Byte
Data bits	5, 6, 7, 8 -
Stop bits	1, 1.5, 2 -
MTBF	114.223 Stunden nach Telcordia SR332

The Moxa CP-114UL-I-DB9 is an industrial-grade serial card with four ports, designed for use in automation systems, data acquisition, and machine control. It enables serial communication via RS-232, RS-422, and RS-485 standards and is designed for operation in 3.3 V and 5 V PCI- and PCI-X slots. The card features an integrated Turbo Serial Engine™ with ADDC® technology, ensuring stable and reliable data transmission, particularly in RS-485 operation. The galvanic isolation with 2 kV insulation protects system components from voltage surges and electrical disturbances, making it suitable for demanding industrial environments.

Applications include industrial data acquisition, control of production machines, remote monitoring of plants, and integration of legacy devices into modern networks. The card is particularly suited for applications requiring high electromagnetic immunity and reliable communication under challenging environmental conditions. Support for wide temperature ranges (down to -40 °C for T-models) extends its use in climatically demanding areas.

Functions and equipment in detail include four serial interfaces connected via a DB44 socket. Each port features individual Tx/Rx LEDs for visual monitoring of data transmission. Data transfer rates range from 50 bps to 921.6 kbps, with a 128-byte FIFO buffer supporting data buffering and minimizing data loss. Interface configuration is flexible: data bits can be set to 5, 6, 7, or 8, stop bits to 1, 1.5, or 2, and parity options include None, Even, Odd, Space, and Mark. Flow control options include RTS/CTS and XON/XOFF.

Technology explained simply shows that the card operates on a 32-bit Universal PCI bus, supporting both 3.3 V and 5 V slots. Signal specifications include RS-232 (TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND), RS-422 (Tx+/Tx-, Rx+/Rx-, GND), RS-485-4w (Tx+/Tx-, Rx+/Rx-, GND), and RS-485-2w (Data+/Data-, GND). The 2 kV galvanic isolation protects internal circuits and prevents disturbances caused by electrical potential differences. The card is designed for operation in a temperature range of 0 to 55 °C, with the T-version operable down to -40 °C.

Compatibility and accessories include support for various operating systems: Windows (DOS to Windows 10, including embedded versions), Linux (kernel 2.4.x to 5.x), and UNIX systems such as QNX, SCO, UnixWare, Solaris, and FreeBSD. For connecting to external devices, separate cables are available, including CBL-M44M9x4-50 (DB44 to 4 x DB9, 50 cm), CBL-M44M25x4-50 (DB44 to 4 x DB25, 50 cm), CBL-F9M9-20 (DB9 F/M, 20 cm), and CBL-F9M9-150 (DB9 F/M, 1.5 m). These cables enable connection to devices with different connectors.

Installation and mounting is done by inserting the card into a free PCI- or PCI-X slot of an industrial PC. The card is designed as a low-profile model, allowing use in compact enclosures. Installation is guided by the included Quick Installation Guide, which describes the necessary setup steps. Power is supplied via the PCI bus, with the CP-114UL-I-DB9 consuming 465 mA at 5 VDC.

Operational advantages include high reliability, electromagnetic immunity via galvanic isolation, and support for multiple operating systems. The high MTBF of 114,223 hours according to Telcordia SR332 highlights the card’s longevity. Integrated LED indicators enable quick diagnosis of transmission activity. The card is suitable for environments with high humidity (5 to 95 %, non-condensing) and complies with standards CISPR 32, FCC Part 15B Class B, IEC 61000-4-2/3/4/5/6/8 (model-dependent), EN 55032/35, as well as environmental standards RoHS, CRoHS, and WEEE.

The card is available in various variants, including the standard version, the T-version for wide temperature range, and models with integrated isolation. The designation -I-DB9 indicates the version with galvanic isolation and a DB9 cable. Dimensions are 64.4 mm x 130 mm, enabling installation in standard PC enclosures. The card is designed for industrial applications requiring stable and interference-resistant communication.

The serial card is a central component in industrial communication, supporting RS-485 interfaces and operating via PCI card technology. The galvanic isolation is a key protective mechanism ensuring system integrity. The Turbo Serial Engine™ ensures efficient data processing, especially at high transmission rates. The low-profile form enables use in compact systems. The operating temperature of 0 to 55 °C (standard) and -40 to 85 °C (T-version) defines the card’s operational range.

The card is designed for industrial environments requiring high reliability and electromagnetic immunity. Integrated LED indicators simplify diagnostics, and support for multiple operating systems increases integration flexibility. The card is a robust and powerful module for serial communication in automation systems.