The CA-104-T is a PC/104-compliant 4-port RS-232 serial module designed for rugged industrial and embedded applications. With a wide operating temperature range of -40 to 85°C, it is built for reliable communication in harsh environments.

Each port uses a 16C550C-compatible UART with a 64-byte FIFO buffer, supporting baud rates up to 921.6 kbps. DIP switches allow flexible configuration of base I/O address and interrupt vector. The module includes built-in Tx/Rx LEDs per port for real-time diagnostics and is compatible with a wide range of Windows, Linux, and UNIX operating systems.

Technical Specifications:

Interface:

• Ports: 4x RS-232
• Connector: 40-pin box header
• Bus: PC/104
• Signals: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
• FIFO: 64 bytes per port
• Max. Boards per PC: 8
• 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
• IRQ: 3, 4, 5, 6, 7, 9, 10, 11, 12, 15 (shared across ports)
• DIP Switches: I/O base address, interrupt vector

Drivers:

• Windows: DOS to Windows 10/Server 2019 (x86/x64), CE 5.0/6.0, XP Embedded
• Linux: Kernel 2.4.x, 2.6.x
• UNIX: FreeBSD 4.x, QNX 4

Indicators:

• LEDs: Tx and Rx built-in per port

Power:

• Input Voltage: 5 VDC
• Current: 210 mA @ 5 VDC

Physical Characteristics:

• Dimensions: 90 x 96 mm (3.54 x 3.78 in)
• Operating Temp: -40 to 85°C
• Storage Temp: -40 to 85°C
• Humidity: 5 to 95% RH (non-condensing)

Certifications:

• EMC: EN 55032/24, CISPR 32, FCC Part 15B Class A
• EMS: IEC 61000-4-2/-3/-4/-5/-6/-8
• Environmental Testing: IEC 60068-2-1/-2/-3/-14, Vibration: IEC 60068-2-6

MTBF:

• 897,459 hours (Telcordia SR-332)

Environmental Compliance:

• RoHS, CRoHS, WEEE

Warranty:

• 5 years (see www.moxa.com/warranty)