Moxa CB-134I | PC/104-Plus 4-Port RS-422/485 Serial Board, 2 kV, 0-55C

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SKU:CB-134I

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Description

The CB-134I is a PC/104-Plus 4-port RS-422/485 serial board with 2 kV isolation, designed for embedded and industrial systems that need reliable multiport serial connectivity. It plugs into PC/104-Plus CPU boards using the PCI expansion interface and supports baudrates up to 921.6 kbps, making it well suited to data acquisition, automation and edge computing applications.

This standard temperature model is rated for 0 to 55°C operation, with the serial interface selectable per port by DIP switch. Tx and Rx LEDs for each port simplify commissioning and troubleshooting, and drivers are available for Windows, Linux and UNIX environments, including embedded variants. Up to eight boards can be installed in a single PC for larger serial port counts.

Features

- 921.6 kbps maximum baudrate for fast data transmission
- 2 kV isolation protects the host system from electrical noise and surges
- On-chip software flow control
- Serial interface is DIP switch selectable
- Onboard Tx and Rx LED indicators for each port
- Drivers for Windows (including Embedded CE 5.0/6.0 and XP Embedded), Linux (kernel 2.4.x, 2.6.x, 3.x) and UNIX (QNX 6, Solaris 10, UnixWare 7)
- Optional DB9 and DB25 connection cables available

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 x RS-422/RS-485 ports
- Bus: PC/104-Plus (PCI)
- Communication controller: 16C550C or compatible x 4
- Baudrate: 50 bps to 921.6 kbps (non-standard baudrates supported)
- FIFO: 128 bytes
- Data bits: 5, 6, 7, 8
- Stop bits: 1, 1.5, 2
- Parity: None, Even, Odd, Space, Mark
- Flow control: None, XON/XOFF
- Connector: 40-pin box header
- Serial interface selected by DIP switch
- Isolation: 2 kV
- Max. boards per PC: 8
- Input voltage: 5 VDC
- Input current: 153 mA @ 5 VDC
- Dimensions: 90 x 96 mm (3.54 x 3.78 in)
- Operating temperature: 0 to 55°C
- LEDs: Tx and Rx for each port

FAQs

Q: Which CPU boards is the CB-134I compatible with?
A: It is designed for PC/104-Plus CPU boards that provide the PC/104-Plus (PCI) expansion interface.

Q: How do I select between RS-422 and RS-485?
A: The serial interface is selected by DIP switch on the board.

Q: Does the CB-134I provide electrical isolation?
A: Yes, it provides 2 kV isolation to help protect the host system from electrical noise and surges on the serial lines.

Q: What operating temperature range does this model support?
A: The CB-134I is rated for 0 to 55°C. A separate wide-temperature model, the CB-134I-T, is available for -40 to 85°C environments.

Q: Which operating systems have drivers available?
A: Drivers are available for Windows (including Embedded CE 5.0/6.0 and XP Embedded), Linux (kernel 2.4.x, 2.6.x, 3.x) and UNIX (QNX 6, Solaris 10, UnixWare 7).

Q: How many CB-134I boards can be installed in one system?
A: Up to eight boards can be used in a single PC.

Datasheet

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

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Moxa CB-134I | PC/104-Plus 4-Port RS-422/485 Serial Board, 2 kV, 0-55C