RJ45 8P8C 9-Way Breakout/Buss Board

BRK8P8C9B-S-DIN

BRK8P8C9B-S-DIN
(click image to enlarge)
BRK8P8C9B-S-DIN
BRK8P8C9B-S-FT
BRK8P8C9B-S-FT (Connection Bus View)
  • Contains Qty 9 RJ45/8P8C Jacks wired in parallel
  • Breakout board & buss board in a single package
  • Useful for "daisy-chaining" connections
  • Perfect for prototyping serial port circuits
  • Screw terminal for each of the 8 lines
  • Solder pad connection space for all 8 lines
  • Supports addition of 0.1" pin headers
  • Rubber feet or DIN rail mount
See Also: RJ45 (8P8C) Cables,   More RJ45 (8P8C) Products


General Description

This RJ45 breakout board brings all 8 pins of an 8P8C / RJ45 modular jack out to screw terminal blocks, providing simple and convenient connection to each connector pin. Each pin is also brought to solder pads (3 per line) at 0.1" spacing, allowing the easy addition of standard pin headers. Please note that the breakout boards are manufactured with a connection between each connector pin and the corresponding terminal block position; no soldering of any type is necessary. The solder pads simply provide an area for making optional connections to additional headers or other components.

In addition, this board functions as a buss board, featuring nine 8P8C jacks wired in parallel and connected to the solder pads and the screw terminals. This allows the user to easily break out a connection to screw terminals while at the same time connecting other cables to the same signals via the extra jacks. This is very convenient when "daisy-chaining" several devices together or when wiring multiple devices in parallel. Please see the photo below which depicts the bus connections. Note that all connections are wired 1-to-1 (ie Pin 1 to Pin 1, Pin 2 to Pin 2, etc.).

BRK8P8C9B Connection Diagram
BRK8P8C9B Connection Diagram
EnlargeClick image to enlarge.

This break out board is perfect for production wiring, for experimentation and prototype work, and for use in the educational laboratory. It is well-suited for work with RS-232 serial ports, RS-485 networks, sensors, data acquisition equipment, and any other device that uses an RJ45/8P8C connector. It can be helpful in making MODBUS connections. A breakout board is sometimes referred to as a "transition module", "terminal board", "terminal block", "breakout box", "breakout adapter", "terminator", or "interface module".

Product Documents

Part #DescriptionPDF DrawingDWG DrawingIGES ModelSTEP Model
BRK8P8C9B-S-DINRJ45 Buss Breakout, DIN MountPDF DWG IGES CAD
BRK8P8C9B-S-FTRJ45 Buss Breakout, Rubber FeetPDF DWG IGES CAD
BRK8P8C9B-S-DIN

RJ45 Buss Breakout, DIN Mount

PDF DWG IGES CAD
BRK8P8C9B-S-FT

RJ45 Buss Breakout, Rubber Feet

PDF DWG IGES CAD

Connector Style

These breakout boards utilize Straight ("Vertical") connectors. This term refers to the connector itself, denoting that it rises straight out of the circuit board rather than at a right angle. The cable mating to a Straight connector is perpendicular to the PCB, as one can infer from the product photos.

Mounting Options

These products are available in two different mounting variants. Product numbers ending with -DIN come with DIN clips already installed and ready to snap onto 35mm or 32mm DIN rail. Product numbers ending with -FT have stick-on rubber feet installed on the bottom side, allowing for benchtop use or panel mounting. For panel mounting, we suggest 1/4" nylon standoffs under the mounting holes, and #6 screws.
BRK8P8C9B-S-DIN
DIN Rail Mount
BRK8P8C9B-S-DIN
EnlargeClick image to enlarge.
Rail not included
BRK8P8C9B-S-FT
Rubber Feet
BRK8P8C9B-S-FT
EnlargeClick image to enlarge.

Product Details

  • Contains Qty 9 RJ45/8P8C Jacks wired in parallel
  • Screw terminal for each of the 8 lines
  • Solder pad connection holes, three (3) per line
  • Supports addition of 0.1" pin headers
  • Screw terminals accomodate wire sizes from 16AWG to 26AWG
  • Approximate dimensions: 3.3" x 3.2"
  • Rubber feet or DIN rail mount

Screwdrivers Need a quality screwdriver for your breakout boards? Winford sells Wiha screwdrivers!

Pricing and Ordering

Product # Description 1+ 10+ RoHS Buy Now
BRK8P8C9B-S-DIN RJ45 9-Way Buss Breakout Board, DIN Rail Mount $27.00 $25.50  Yes
BRK8P8C9B-S-FT RJ45 9-Way Buss Breakout Board, Rubber Feet $25.50 $24.00  Yes

BRK8P8C9B-S-DIN
RoHS   Yes
RJ45 9-Way Buss Breakout Board, DIN Rail Mount
QuantityPrice
1+$27.00
10+$25.50
BRK8P8C9B-S-FT
RoHS   Yes
RJ45 9-Way Buss Breakout Board, Rubber Feet
QuantityPrice
1+$25.50
10+$24.00

All of the above items are normally stocked. Please call us if you need to verify availability for a specific quantity, or for pricing at higher quantities. Please visit our ordering page for our ordering policies and a list of ordering methods.


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