The Moxa CP-104UL and CP-104JU Series are intelligent 4-port RS-232 Universal PCI serial boards designed for applications in POS systems, ATMs, and industrial automation. With per-port transmission speeds of up to 921.6 kbps, over 800 kbps data throughput, and a 128-byte FIFO buffer, these boards ensure high-performance serial communications.

The CP-104UL uses a DB44 connector with optional breakout cables (to DB9 or DB25), while the CP-104JU features four direct RJ45 ports. Both support 3.3 V and 5 V PCI/PCI-X buses, making them suitable for installation in a wide range of PC architectures. Tx and Rx activity LEDs are built into each port, and wide temperature models are available for deployment in harsh industrial environments. Support for Windows, Linux, and UNIX makes these boards versatile and developer-friendly.

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 (via breakout cables to DB9 or DB25)
• CP-104JU: 4 x 8-pin 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 (x86/x64), 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 Consumption:

• 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
• LEDs: 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 to 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
• International Approval: KC (CP-104UL-DB9M only)

Reliability:

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

Warranty:

• 5-year manufacturer warranty

Package Contents:

• 1 x CP-104UL or CP-104JU board
• 1 x Cable (depending on model):
• 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:

• CP-104UL-DB9M: 4 x RS-232, DB44, 0–55 °C, includes DB9 cable
• CP-104UL-DB25M: 4 x RS-232, DB44, 0–55 °C, includes DB25 cable
• CP-104UL-T: 4 x RS-232, DB44, -40–85 °C, no cable
• CP-104JU: 4 x RS-232, RJ45, 0–55 °C, no cable
• CP-104JU-T: 4 x RS-232, RJ45, -40–85 °C, no cable

Accessories (sold separately):

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