The CP-134U Series from Moxa is a robust 4-port serial board designed for industrial automation scenarios that demand long-distance, multipoint data acquisition via RS-422/485 communication. Two ports also support RS-232, while all four can be used for RS-422/485, making it highly versatile in mixed environments.

With the onboard Moxa Turbo Serial Engine™, the board offers ADDC® (Automatic Data Direction Control), high throughput over 700 kbps, and smooth data handling via a 128-byte FIFO buffer. The “-I” version features 2 kV isolation for enhanced protection against electrical disturbances, while a wide-temperature model supports operation in extreme environments (-40 to 85 °C).

Comprehensive driver support for Windows, Linux, and UNIX platforms ensures seamless integration into both legacy and modern systems.

Technical Details (English):

Interface:

• Bus: 32-bit Universal PCI (3.3/5 V, PCI-X compatible)
• Max. Boards per PC: 8
• Connector: DB44 female
• FIFO Buffer: 128 bytes

Serial Ports:

• Ports: 4
• Standards: 2 x RS-232/422/485, 2 x RS-422/485
• 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
• Isolation: 2 kV (only for CP-134U-I models)

Signal Assignment:

• 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

Software Support:

• Windows: DOS through Windows 10/Server 2019
• Linux: Kernel 2.4 to 5.x
• UNIX: QNX, SCO, UnixWare, Solaris, FreeBSD

Power:

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

Form Factor & Indicators:

• Dimensions:
• CP-134U: 82.5 x 120 mm
• CP-134U-I: 115 x 120 mm
• LEDs: Built-in Tx/Rx per port

Environmental:

• 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

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 serial board
• 1 x DB44 to 4 x DB9M or DB25M cable (depending on model)
• 1 x Quick Installation Guide
• 1 x Warranty & Disclosure documentation