BLACK BOX 

BLACK BOX ME890A-R2 DB9 LINE DRIVER

Mfg Part Number:  ME890A-R2  
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Price: $334.98 + Free Shipping
Quantity:
In Stock: 18
Last Updated: Jan 25, 2026
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, PO and Wire.
  • Use long-distance CATx links to communicate with serial devices.
  • Control presentations remotely.
  • Transfer data between computers.
  • Ideal for a wide variety of applications.
  • Optical isolated.
  • Maximum speed of 250 K.
  • Easy installation. The driver provides full-duplex transmission and hardware handshake signals. There's no need for setup or configuration.

These CATx Line Drivers enable the user to place a receiving device up to 4000 feet away from the sending device. The local unit has a DB9 female connector and is configured as a DCE device; the remote unit has a DB9 male connector and is configured as a DTE device. This allows the local/remote pair to function as a long extension cable between two RS-232 devices. There are no user-configurable settings. These units pass TXD, RXD, RTS, and CTS signals to allow application to use hardware handshake signals if neccessary.
Main Specification
General Information
Manufacturer Black Box Corporation
Manufacturer Part Number ME890A-R2
Manufacturer Website Address http://www.blackbox.com
Brand Name Black Box
Product Name Async RS232 Extender over CATx - DB9 with Control Signals to Terminal Block
Product Type Serial Extender
Technical Information
Maximum Extended Range 4000 ft
Maximum Data Transfer Rate 31.25 kB/s
Interfaces/Ports
Network (RJ-45) Yes
Physical Characteristics
Height 0.8"
Width 1.7"
Depth 3.2"
Miscellaneous
Package Contents
  • 1 x Local Unit
  • 1 x Remote Unit
  • 2 x 120 V Power Supplies
Additional Information
  • Cable Requirement CATx
  • Connectors Local unit: (1) DB9 F (DCE), (1) RJ-45, (1) power jack;
  • Remote unit: (1) DB9 M (DTE), (1) RJ-45, (1) power jack
  • Distance 4000 ft. (1219.2 m) maximum
  • Interface RS-232
  • Operation Asynchronous, full-duplex
  • Power Input: 100-240 VAC;
  • Output: 12-VDC power adapter
  • Speed 250 kbps maximum
Certifications & Standards
  • CE
  • UL
Country of Origin United States
TAA Compliant Yes
Environmentally Friendly Yes
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Warranty
Limited Warranty 1 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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