Home/Network & Accessories/Media Converter/Transition CRS4F3211-100 RS422/485 Terminal Block ...
Transition CRS4F3211-100 RS422/485 Terminal Block ST Media Converter

Safe checkout

Secure payments

Fast dispatch

1–2 day handling

Free shipping

U.S. ground

Warranty & RMA

Support after delivery

Transition CRS4F3211-100 RS422/485 Terminal Block ST Media Converter

SKU CRS4F3211-100
  • Converts RS422/485 serial signals to fiber optic.
  • Features a terminal block for RS422/485 connections.
  • Includes an ST fiber optic connector.
  • Enables long-distance serial communication over fiber.
  • Suitable for industrial automation and harsh environments.
  • Provides electrical isolation for enhanced reliability.
Available to order

CRS4F3211-100 isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.

Key specifications

See full specs ↓
Product Type
Media Converter
Serial Interface
RS422/485
Fiber Connector
ST
Fiber Type
Multimode (typically)
Connection Type
Terminal Block

Product details

The Transition CRS4F3211-100 is an RS422/485 terminal block media converter. It is designed to convert serial RS422/485 signals to fiber optic signals, typically using an ST connector, for extended-range communication.

Technical Information

Product TypeMedia Converter
Serial InterfaceRS422/485
Fiber ConnectorST

Additional Specifications

Fiber TypeMultimode (typically)
Connection TypeTerminal Block

Description

The Transition CRS4F3211-100 is a specialized media converter designed to bridge the gap between traditional serial communication interfaces and modern fiber optic networks. It specifically handles RS422 and RS485 serial protocols, converting these signals into a format suitable for transmission over fiber optic cable. This capability is crucial for extending the reach of serial devices far beyond the limitations of copper wiring, which are susceptible to electromagnetic interference and distance constraints. The converter features a convenient terminal block for connecting RS422/485 devices, offering flexibility for wiring configurations. On the fiber optic side, it utilizes an ST connector, a common and robust connector type for fiber optic applications. While the specific fiber type (multimode or single-mode) and distance capabilities would depend on the exact model variant and the fiber used, these converters are generally employed to achieve communication distances measured in kilometers, far exceeding typical serial port limitations. This type of media converter is particularly valuable in industrial environments where long-distance serial communication is required for control systems, SCADA networks, or data acquisition. The use of fiber optics also provides inherent advantages such as immunity to electrical noise and ground loops, as well as enhanced security against tapping. The CRS4F3211-100 facilitates the integration of legacy serial equipment into modern, high-performance networks, ensuring continued operational viability and improved communication reliability.

Condition: Refurbished

Free U.S. ground shipping

Typically 1–2 days handling, 3–7 days in transit.

Purchase orders accepted

Government, enterprise, data center and small business.

Warranty & RMA support

See warranty and returns.

Buying 10+ units?

Get volume pricing and availability for CRS4F3211-100.

Questions about this part?

Compatibility, condition, lead times — ask a specialist.

(888) 988-8093

Related products

Loading related inventory…