The Moxa CP-134U-I-DB9M is a robust 4-port Universal PCI serial board, engineered for industrial applications that require reliable long-distance RS-232/422/485 communication with electrical isolation. Two of the four ports support RS-232/422/485, while the remaining two support RS-422/485. The integrated 2 kV isolation provides effective protection against surges, making the board ideal for harsh industrial environments.

Equipped with Moxa’s Turbo Serial Engine™, the board features a 128-byte FIFO buffer and supports baudrates up to 921.6 kbps. The built-in ADDC® (Automatic Data Direction Control) makes RS-485 communication as simple as RS-232. It ships with a DB44-to-DB9 male breakout cable for easy deployment. Drivers are available for Windows, Linux, and UNIX systems.

Technical Details:

Interface:

• Controller: MU860 (16C550C compatible)
• Bus: 32-bit Universal PCI (3.3 V/5 V, PCI-X compatible)
• Connector: DB44 female with DB9M cable
• FIFO: 128 bytes
• Max. Boards per PC: 8
• 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

Signal Pinouts:

• 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

Driver 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:

• 850 mA @ 5 VDC

Physical Characteristics:

• Dimensions: 115 x 120 mm
• LEDs: Built-in Tx/Rx indicators for each port

Environmental Limits:

• Operating Temperature: 0 to 55 °C
• Storage Temperature: -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 (ESD), -4-3 (RS)

Environmental Declaration:

• RoHS, CRoHS, WEEE compliant

MTBF:

• 480,209 hours (Telcordia SR332)

Warranty:

• 5-year manufacturer warranty