General
Number of ports	4
Data bits	5, 6, 7, 8
Stop bits	1, 1.5, 2
MTBF	571.627 Stunden

The Moxa CP-104JU is an intelligent serial card with four RS-232 interfaces, designed for the Universal PCI bus. It serves to extend PCs with serial communication capability and is specifically designed for industrial automation applications, POS systems, and ATMs. The card enables connection to devices communicating via RS-232 and offers high data throughput rates through integrated hardware and software flow control as well as a 128-byte FIFO memory. The maximum baud rate is 921.6 kbps, ensuring efficient data transfer in demanding environments.

Applications
The CP-104JU is suitable for applications requiring multiple serial devices to be connected to a PC, such as in manufacturing automation, monitoring systems, or retail environments. The use of RJ45 connectors instead of traditional DB connectors simplifies installation and provides a robust, wired connection. The card is compatible with systems featuring 3.3 V and 5 V PCI- as well as PCI-X slots, enabling installation in a wide range of PC systems.

Functions and Features in Detail
The card features four independent RS-232 ports, each equipped with integrated LEDs for transmit (Tx) and receive (Rx) activity. This allows for visual monitoring of communication activity. Transmission parameters are flexibly configurable: data bits can be set between 5 and 8, stop bits between 1, 1.5, and 2, and parity types including none, even, odd, space, or mark are supported. Flow control can be implemented via RTS/CTS (hardware) or XON/XOFF (software). Signals TxD, RxD, RTS, CTS, DTR, DSR, DCD, and GND are fully supported.

Technology Explained Simply
The communication controller MU860 is 16C550C-compatible, providing a widely used and reliable foundation for serial communication. The 128-byte FIFO buffering ensures temporary data storage to prevent data loss at high transmission rates. Universal PCI bus support allows use in various PC systems, regardless of voltage specification (3.3 V or 5 V). The maximum number of cards installable per PC is eight, enabling scalability for larger applications.

Compatibility and Accessories
The CP-104JU is compatible with common operating systems, including Windows (from DOS to Windows 10/Server 2019, x86/x64, CE 5.0/6.0, XP Embedded), Linux (kernel 2.4.x to 5.x), and UNIX systems such as QNX 6, SCO OpenServer, UnixWare 7, Solaris 10, and FreeBSD. The card is designed for standard environments with an operating temperature range of 0 to 55 °C. For more demanding industrial environments, a wide-temperature model (CP-104JU-T) is available with an operating temperature range of -40 to 85 °C. Certifications include EMC (EN 55032/24), EMI (CISPR 32, FCC Part 15B Class B), and EMS (IEC 61000-4-2/3). Environmental standards such as RoHS, CRoHS, and WEEE are also met.

Installation and Mounting
Installation is performed by inserting the card into a free PCI- or PCI-X slot of the computer. The RJ45 connectors enable simple and robust connections to external devices. The integrated LEDs facilitate diagnosis of communication issues. The card requires a power supply of 135 mA at 5 VDC. Physical dimensions are 83 x 120 mm.

Operational Advantages
The card offers high reliability with an MTBF of 571,627 hours according to Telcordia TR/SR standard. The 5-year manufacturer’s warranty underscores the product’s quality. The combination of universal PCI compatibility, flexible transmission parameters, and robust connectors makes the CP-104JU a reliable solution for industrial and commercial applications.

Reliability and Warranty
The CP-104JU is designed for high operational reliability. The MTBF (Mean Time Between Failures) is 571,627 hours, indicating long service life and low failure probability. The manufacturer’s warranty covers five years, highlighting the product’s quality and durability.

Certifications and Environmental Standards
The card meets EMC requirements according to EN 55032/24 and EMI standards CISPR 32 and FCC Part 15B Class B. EMS certification includes IEC 61000-4-2/3. Environmental standards RoHS, CRoHS, and WEEE are also complied with, ensuring environmental compatibility of the product.