The Moxa CP-134U Series is a high-performance 4-port universal PCI serial board designed for industrial automation environments that demand long-distance and multi-drop data communication. Supporting RS-422/485 on all four ports – with RS-232 additionally available on ports 1 and 2 – the board is perfect for PC-based data acquisition across distances of up to 1.2 km.

Powered by the Moxa Turbo Serial Engine™ chip with ADDC® automatic data direction control, the CP-134U Series ensures precise RS-485 communication, high transmission speeds of up to 921.6 kbps, and smooth data flow with a 128-byte FIFO buffer. Optional 2 kV isolation and wide temperature variants (-40 to 85 °C) make this board ideal for rugged industrial settings.

Comprehensive driver support for Windows, Linux, and UNIX platforms guarantees easy integration across diverse systems.

Technical Details:

Connectivity:

• 4 serial ports (2 x RS-232/422/485, 2 x RS-422/485)
• DB44 female with bundled cable to 4 x DB9M or 4 x DB25M

Communication:

• Baudrate: 50 bps to 921.6 kbps
• FIFO: 128 bytes
• Data Bits: 5, 6, 7, 8
• Stop Bits: 1, 1.5, 2
• Parity: None, Even, Odd, Space, Mark
• Flow Control: RTS/CTS, XON/XOFF, None
• Isolation (CP-134U-I only): 2 kV

Signal Assignments:

• RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
• RS-422: Tx±, Rx±, RTS±, CTS±, GND
• RS-485 (4-wire): Tx±, Rx±, GND
• RS-485 (2-wire): Data±, GND

Interface:

• Bus: 32-bit Universal PCI (3.3 V/5 V, PCI-X compatible)
• Max. Boards per PC: 8

OS Support:

• Windows: 95 to 10, Server 2003 to 2019, Embedded CE/XPe
• Linux: Kernel 2.4.x to 5.x
• UNIX: QNX, SCO, Solaris, UnixWare, FreeBSD

Environment:

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

Power Consumption:

• CP-134U: 180 mA @ 5 VDC
• CP-134U-I: 850 mA @ 5 VDC

Dimensions:

• CP-134U: 82.5 x 120 mm
• CP-134U-I: 115 x 120 mm

Certifications:

• EMC: EN 55032/35
• EMI: CISPR 32, FCC Part 15B Class B
• EMS: IEC 61000-4-2/3

MTBF & Warranty:

• MTBF: 480,209 hrs (Telcordia SR332)
• Warranty: 5 years

Package Contents:

• 1 x CP-134U Series board
• 1 x DB44 to 4 x DB9M or DB25M cable (model dependent)
• 1 x Quick Installation Guide
• 1 x Warranty Card
• 1 x Substance Disclosure Table