Moxa CP-134U-DB25M | 4-Port RS-422/485 Universal PCI Serial Board, DB25 Male Cable

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SKU:CP-134U-DB25M

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Description

The Moxa CP-134U-DB25M is a 4-port RS-422/485 universal PCI serial board designed for industrial automation, data acquisition and device connectivity. It installs in 3.3/5 V PCI and PCI-X slots and supports baudrates from 50 bps up to 921.6 kbps per port. This non-isolated model ships with a DB25 male cable and operates across a 0 to 55°C temperature range.

Ports 1 and 2 support RS-232, RS-422 and RS-485, while ports 3 and 4 support RS-422 and RS-485. Automatic data direction control simplifies RS-485 wiring, and a 128-byte FIFO with on-chip hardware and software flow control helps maintain reliable throughput. Drivers are available for Windows, Linux and UNIX, with support for other operating systems such as WEPOS for embedded integration.

Features

- Over 700 kbps data throughput
- 921.6 kbps maximum baudrate
- Automatic data direction control (ADDC) for RS-485 signals
- Compatible with 3.3/5 V PCI and PCI-X slots
- Ports 1 and 2 support both RS-232 and RS-422/485
- Drivers for Windows, Linux and UNIX, plus other OSes such as WEPOS
- DB25 male cable included for immediate connection

Warranty

Moxa offers varying warranty periods depending on the product category:
• 5-Year Warranty: Applies to most industrial networking and connectivity products, including Ethernet switches, routers, wireless devices, serial converters, protocol gateways, and USB hubs.
• 3-Year Warranty: Covers x86-based industrial computers and panel PCs.
• 1-Year Warranty: Applies to external batteries, LCD panels, power adapters, antennas, and other select accessories.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Moxa products. Contact our team to explore options that align with your organization's needs.
https://www.moxa.com/en/support/repair-and-warranty/warranty-policy

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Datasheet

Technical Specifications

- 4 serial ports: ports 1-2 RS-232/422/485, ports 3-4 RS-422/485
- Baudrate: 50 bps to 921.6 kbps
- Bus: Universal PCI (3.3/5 V PCI and PCI-X compatible)
- Communication controller: MU860 (16C550C compatible)
- 128-byte FIFO with on-chip hardware and software flow control
- 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
- Operating temperature: 0 to 55°C
- Includes DB25 male cable
- Non-isolated model
- Up to 31 daisy-chained RS-485 devices within 1.2 km

FAQs

Q: Which PCI slots is the CP-134U-DB25M compatible with?
A: It is a universal PCI board that works in both 3.3 V and 5 V PCI slots, and it is also compatible with PCI-X slots.

Q: Does this model provide electrical isolation?
A: No. The CP-134U-DB25M is the non-isolated model. 2 kV isolation is only available on the CP-134U-I variants.

Q: Which serial interfaces does each port support?
A: Ports 1 and 2 support RS-232, RS-422 and RS-485. Ports 3 and 4 support RS-422 and RS-485.

Q: What is the maximum baudrate?
A: Each port supports baudrates from 50 bps up to 921.6 kbps.

Q: Which operating systems are supported?
A: Drivers are available for Windows, Linux and UNIX, and other OSes such as WEPOS can be used for embedded integration.

Q: How many RS-485 devices can be daisy-chained?
A: In RS-485 mode, up to 31 devices can be daisy-chained within 1.2 km.

Datasheet

This product has a detailed PDF datasheet available. Open PDF datasheet in a new tab .

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Moxa CP-134U-DB25M | 4-Port RS-422/485 Universal PCI Serial Board, DB25 Male Cable