5 Connect the DC power input cables as follows:
a On each terminal, loosen the screw enough to allow the spade terminal to slide underneath the
captive square washer.
b Slide the spade terminal of the negative wire (–24 V) under the captive square washer on the
negative terminal (labeled –24 V).
Replacing DC Power Supplies
ExtremeSwitching and Summit Switches: Hardware Installation Guide
283