Many end devices, including Rockwell Automation® hardened I/O products, use a different pin numbering convention for 4-pin mini connections than that used on physical media products
Can provide power through only one pair of the four available contacts, so the other available pair can be used for single channel E-stop
E-stop T-ports and shorting plugs are red for easy identification
Highly pliable polyvinylchloride (PVC) jacket material
Both conventions have the same color code going to the same spot but they use a different pin numbering designation
Physical key to ensure proper connection alignment
Sized to fit inside 1-in. conduit