The CA-132/132I Series includes rugged 2-port RS-422/485 PC/104 modules engineered for reliable serial communication in industrial and embedded systems. These modules offer up to 921.6 kbps baudrate, LED diagnostics per port, and support for RS-485 ADDC® (Automatic Data Direction Control).

Select models (CA-132I, CA-132I-T) provide 2 kV optical isolation, ensuring enhanced protection in environments with high electrical noise. The CA-132I-T version also supports wide-temperature operation (-40 to 85°C), making it ideal for outdoor and mission-critical installations.

Optional DB9/DB25 cables enable flexible device integration. Extensive driver support ensures compatibility across Windows (including XP Embedded, CE 5.0/6.0), Linux, and UNIX systems.

Key Features:

• 2x RS-422/RS-485 serial ports
• Max. 921.6 kbps transmission speed
• RS-485 ADDC® supported
• 2 kV isolation (CA-132I/132I-T)
• Onboard Tx/Rx status LEDs
• Operating temperature:
• CA-132 / CA-132I: 0 to 55°C
• CA-132I-T: -40 to 85°C
• Supported OS: Windows CE/XPe, Linux, UNIX

Technical Specifications:

Interface:

• Serial Standards: RS-422, RS-485 (2-wire / 4-wire)
• Controller: 2x 16C550C compatible UARTs
• FIFO: 64 bytes per port
• Signals:
• RS-422: Tx±, Rx±, GND
• RS-485 4-wire: Tx±, Rx±, GND
• RS-485 2-wire: Data±, GND
• 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, XON/XOFF
• Isolation: 2 kV (only CA-132I/132I-T)

System Integration:

• Bus: PC/104
• Connector: 20-pin box header
• DIP Switches: I/O base address, interrupt vector
• IRQ: 3–7, 9–12, 15 (shared)
• Max. Boards per PC: 8

Indicators:

• Tx/Rx LEDs per port

Software Support:

• Windows: DOS to Windows 10 / Server 2019, CE 5.0/6.0, XP Embedded
• Linux: Kernel 2.4.x, 2.6.x
• UNIX: FreeBSD 4.x, QNX 4, SCO UNIX, OpenServer

Physical Characteristics:

• Dimensions: 90 x 96 mm
• Power Supply: 5 VDC, 155–190 mA

Certifications:

• EMC/EMI/EMS: EN 55032/24, FCC, CISPR 32, IEC 61000 series
• MTBF: 536,288 hrs (Telcordia)
• Environmental: RoHS, CRoHS, WEEE

Warranty:

• 5 years (see www.moxa.com/warranty)