The Moxa CP-134U Series is a high-performance 4-port Universal PCI serial board designed for industrial automation and PC-based data acquisition systems. Two of the ports support RS-232/422/485, and the other two support RS-422/485 only. With support for speeds up to 921.6 kbps and Moxa’s on-chip ADDC® (Automatic Data Direction Control), the CP-134U ensures seamless RS-485 communication.

Powered by Moxa’s Turbo Serial Engine™, it features a 128-byte FIFO buffer, hardware/software flow control, and burst data mode to ensure over 700 kbps data throughput. The CP-134U-I model offers 2 kV isolation for added protection. Wide temperature versions are available for harsh industrial environments.

Technical Specifications:

Interface:

• Controller: MU860 (16C550C compatible)
• Bus: 32-bit Universal PCI (3.3 V / 5 V, PCI-X compatible)
• Connector: DB44 female
• FIFO: 128 bytes
• Max. Boards per PC: 8
• Ports: 4
• Serial 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 (I models): 2 kV

Serial Signals:

• 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

Operating System Support:

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

Power Consumption:

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

Physical Characteristics:

• Dimensions:
• Standard: 82.5 x 120 mm
• Isolated: 115 x 120 mm
• LEDs: Tx, Rx per port

Environmental Limits:

• Operating Temperature: 0 to 55 °C (standard)
• Wide Temperature: -40 to 85 °C
• Storage: -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: 480,209 hours
• Standards: Telcordia SR332
• Environmental: RoHS, CRoHS, WEEE

Package Contents:

• 1 x CP-134U Series serial board
• 1 x M44 to 4 x DB9-M or DB25-M cable (depending on model)
• 1 x Quick installation guide
• 1 x Warranty and compliance info

Optional Accessories:

• Cables:
• CBL-M44M25x4-50
• CBL-M44M9x4-50