The Moxa CP-114EL Series is a robust 4-port PCI Express serial board line supporting RS-232, RS-422, and RS-485 interfaces. Designed for industrial settings like POS systems, ATMs, and factory automation, the CP-114EL supports up to 921.6 kbps baudrate per port and features a 128-byte FIFO with on-chip hardware and software flow control for stable and efficient communication.

Thanks to its low-profile form factor, the board fits compact PCs. The -I models add 2 kV galvanic isolation for enhanced protection in noisy environments. Drivers are available for Windows, Linux, and UNIX, and built-in LED indicators per port simplify troubleshooting.

Technical Specifications:

Serial Interface:

• Controller: 16C550C compatible
• Bus: PCI Express 1.0 (x1)
• Connector: DB44 female
• FIFO: 128 bytes
• Ports: 4
• Max. Boards per PC: 8
• Supported Standards: RS-232, RS-422, RS-485

Communication Parameters:

• 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, RTS/CTS, XON/XOFF

Signal Lines:

• RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
• RS-422: Tx±, Rx±, GND
• RS-485-4w: Tx±, Rx±, GND
• RS-485-2w: Data±, GND

Isolation:

• CP-114EL-I Series: 2 kV galvanic isolation

Software Support:

• Windows: DOS to Windows 10/Server 2019 (x86/x64), Embedded CE 5.0/6.0, XP Embedded
• Linux: Kernel 2.4.x to 5.x
• UNIX: QNX 6, Solaris 10, UnixWare 7, SCO OpenServer 5/6

Power Consumption:

• CP-114EL: 835 mA @ 3.3 VDC
• CP-114EL-I: 1,170 mA @ 3.3 VDC

Dimensions:

• CP-114EL: 67.21 x 103 mm
• CP-114EL-I: 67.21 x 135 mm

LED Indicators:

• Built-in Tx/Rx LEDs per port

Environmental Limits:

• Operating Temperature: 0 to 55°C (32 to 131°F)
• Storage Temperature: -20 to 85°C (-4 to 185°F)
• Humidity: 5 to 95% (non-condensing)

Certifications:

• EMC: EN 55032/35
• EMI: CISPR 32, FCC Part 15B Class B
• EMS: IEC 61000-4-2 to -4-8
• Environment: RoHS, CRoHS, WEEE

MTBF:

• CP-114EL: 2,347,197 hrs
• CP-114EL-I: 603,671 hrs

Warranty:

• 5-year manufacturer warranty

Package Contents:

• 1 x CP-114EL or CP-114EL-I 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 card

Ordering Information:

Models:

• CP-114EL – RS-232/422/485, no isolation, no cable
• CP-114EL-I – RS-232/422/485, 2 kV isolation, no cable
• CP-114EL-DB9M – no isolation, with DB9 cable
• CP-114EL-DB25M – no isolation, with DB25 cable
• CP-114EL-I-DB9M – with isolation, with DB9 cable
• CP-114EL-I-DB25M – with isolation, with DB25 cable

Accessories (sold separately):

• CBL-M44M9x4-50 – DB44 to 4 x DB9 male cable, 50 cm
• CBL-M44M25x4-50 – DB44 to 4 x DB25 male cable, 50 cm
• CBL-F9M9-20 – DB9 female to DB9 male cable, 20 cm
• CBL-F9M9-150 – DB9 female to DB9 male cable, 1.5 m