Discrete IO Product Catalog 2017
Discrete IO Boards .......................................................................................................................... 1
WRC4 Modules................................................................................................................................ 2
WRC4 Fuses ..................................................................................................................................... 4
Slim Modules................................................................................................................................... 4
Quad Modules ................................................................................................................................. 5
Discrete I/O Accessories ................................................................................................................. 6
Signal Conditioning for Allen Bradley PLC Modules ....................................................................... 6
Signal Conditioning for Mitsubishi PLC Modules ........................................................................... 7
DISCRETE IO BOARDS
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WRC offers an extensive range of mounting boards for all versions of WRC discrete I/O modules as well as other
vendors modules. The general types available include:
• 1781 slim series of mounting boards are available for 1, 4, 8 , 16, 24
, and 32 points of I/O and provide the space savings available by the
use of the 1781 series of slim modules.
• 1781 quad mounting boards are available for 24 or 32 points of
quad I/O
• WRC4 series of mounting boards provide a selection of 1, 4, 8, 16,
and 24 points of I/O in different configurations to meet you
application needs.
• 1771 series of mounting boards are available to handle the slim,
and 0.6” size modules in 8 or 16 point configurations.
Choose the logic side connection to meet your application from card-edge connector, 50-conductor header connector,
or terminal screws for point to point wiring.
Mounting options include the traditional panel mounting swaged stand-off as well as the convenient DIN-Rail
mounting.
Consult the following table for details showing the options available.
Custom DIN-rail mounting board sizes may be available. Consult WRC or your local distributor for details.
All units are UL recognized and CE compliant.
WRC4 MODULES
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WRC4 Series Discrete I/O expands WRC’s complete line of discrete I/O modules. These
modules provide an indication LED and replaceable fuse. They also meet an industry de facto
standard pin-out.