The CB-134I-T, part of the CB-134I Series, is a high-performance and rugged 4-port RS-422/485 PC/104-Plus module featuring 2 kV optical isolation and a wide operating temperature range of -40 to 85°C. It is ideal for serial communication in harsh industrial and embedded environments such as energy systems, transportation, and factory automation.

Each port supports baudrates up to 921.6 kbps, including non-standard speeds, and is equipped with a 128-byte FIFO. The serial mode is DIP-switch selectable, while IRQ and I/O addresses are assigned by BIOS, simplifying installation. Built-in Tx and Rx LEDs help with real-time diagnostics.

The module supports a broad range of Windows, Linux, and UNIX drivers and complies with strict industrial EMC and safety standards (e.g., EN 61000, IEC 61000 series), ensuring reliable operation in mission-critical applications.

Key Features:

• 4 RS-422/485 ports with 2 kV optical isolation
• -40 to 85°C wide-temperature support
• DIP-switch selectable interface mode
• Up to 921.6 kbps baudrate (non-standard rates supported)
• 128-byte FIFO per port
• Tx/Rx status LEDs per port
• BIOS-assigned IRQ and I/O address
• Broad OS driver support: Windows, Linux, UNIX
• EMC/EMI compliant: EN 55032, EN 61000-6-2/-6-4
• MTBF: 403,631 hours
• 5-year warranty

Technical Specifications:

Serial Interface:

• Ports: 4
• Standards: RS-422, RS-485
• FIFO: 128 bytes
• Baudrate: 50 bps to 921.6 kbps (non-standard rates supported)
• Data Bits: 5, 6, 7, 8
• Stop Bits: 1, 1.5, 2
• Parity: None, Even, Odd, Space, Mark
• Flow Control: None, XON/XOFF
• Interface Selection: DIP-switch configurable

Integration:

• Bus: PC/104-Plus (PCI)
• Connector: 40-pin box header
• IRQ & I/O Address: Assigned by BIOS
• Max. boards per PC: 8

Indicators:

• LEDs: Tx and Rx per port

Power Requirements:

• Input Voltage: 5 VDC
• Current: 153 mA

Physical:

• Dimensions: 90 x 96 mm

Environmental:

• Operating Temp: -40 to 85°C
• Storage Temp: -40 to 85°C
• Humidity: 5 to 95% (non-condensing)

Certifications:

• EMC: EN 55032, EN 61000-6-2/-6-4
• EMI: CISPR 32, FCC Part 15B Class A
• EMS: IEC 61000-4-2 to -4-8
• Vibration: IEC 60068-2-6

Environmental Compliance:

• RoHS, CRoHS, WEEE

Warranty:

• 5 years (see www.moxa.com/warranty)