The Moxa CP-104UL and CP-104JU Series are advanced 4-port RS-232 Universal PCI serial boards designed for industrial POS, ATM, and automation systems. With a maximum baudrate of 921.6 kbps per port and data throughput over 800 kbps, these boards deliver excellent serial communication performance using 128-byte FIFO and built-in hardware/software flow control.

Compatible with both 3.3 V and 5 V PCI/PCI-X buses, these boards are ideal for legacy and modern systems alike. The CP-104UL features a DB44 connector with breakout cables to DB9 or DB25, while the CP-104JU provides four direct RJ45 ports. Integrated Tx/Rx LEDs on every port assist in diagnostics. Broad OS support for Windows, Linux, and UNIX systems is provided, along with wide-temperature variants for challenging environments.

Technical Specifications:

Interface:

• Controller: MU860 (16C550C compatible)
• Bus: 32-bit Universal PCI (3.3 V / 5 V)
• FIFO: 128 bytes
• Ports: 4
• Max. boards per PC: 8
• Serial Standard: RS-232

Connectors:

• CP-104UL: DB44 female (with breakout cables)
• CP-104JU: 4 x RJ45

Transmission Parameters:

• Baudrate: 50 bps to 921.6 kbps
• Data Bits: 5, 6, 7, 8
• Stop Bits: 1, 1.5, 2
• Parity: None, Even, Odd, Space, Mark
• Flow Control: None, RTS/CTS, XON/XOFF
• Signals: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND

Operating System Support:

• Windows: DOS to Windows 10, Server 2019, CE 5.0/6.0, XP Embedded
• Linux: Kernel 2.4.x to 5.x
• UNIX: QNX 6, SCO OpenServer, UnixWare 7, Solaris 10, FreeBSD

Power Parameters:

• CP-104UL: 120 mA @ 5 VDC
• CP-104JU: 135 mA @ 5 VDC

Physical Characteristics:

• Dimensions:
• CP-104UL: 64.4 x 120 mm
• CP-104JU: 83 x 120 mm
• LED Indicators: Built-in Tx/Rx per port

Environmental Limits:

• Operating Temperature:
• Standard: 0 to 55 °C
• Wide Temp: -40 to 85 °C
• Storage Temperature: -40 to 85 °C
• Humidity: 5–95% RH (non-condensing)

Certifications:

• EMC: EN 55032/24
• EMI: CISPR 32, FCC Part 15B Class B
• EMS:
• CP-104UL: IEC 61000-4-2/3/4/5/6/8
• CP-104JU: IEC 61000-4-2/3
• Environmental: RoHS, CRoHS, WEEE
• Approval: KC (CP-104UL-DB9M only)

Reliability:

• MTBF:
• CP-104UL: 558,961 hours
• CP-104JU: 571,627 hours
• Standard: Telcordia TR/SR

Warranty:

• 5-year manufacturer warranty

Package Contents:

• 1 x CP-104UL or CP-104JU serial board
• 1 x Cable (model dependent):
• M44 to 4 x DB9-M (CP-104UL-DB9M)
• M44 to 4 x DB25-M (CP-104UL-DB25M)
• 1 x Quick installation guide
• 1 x Substance disclosure table
• 1 x Warranty card

Ordering Information:

Model Overview:

• CP-104UL-DB9M – 4 x RS-232, DB44, 0–55 °C, includes CBL-M44M9x4-50
• CP-104UL-DB25M – 4 x RS-232, DB44, 0–55 °C, includes CBL-M44M25x4-50
• CP-104UL-T – 4 x RS-232, DB44, -40 to 85 °C, no cable
• CP-104JU – 4 x RS-232, RJ45, 0–55 °C, no cable
• CP-104JU-T – 4 x RS-232, RJ45, -40 to 85 °C, no cable

Accessories (sold separately):

• Bracket: 1490000001000 (low-profile bracket for DB44)
• Cables:
• CBL-M44M9x4-50: DB44 to 4 x DB9 male, 50 cm
• CBL-M44M25x4-50: DB44 to 4 x DB25 male, 50 cm
• CBL-F9M9-20: DB9 female to DB9 male, 20 cm
• CBL-F9M9-150: DB9 female to DB9 male, 1.5 m