17
Figure 18
Mounting the UTM device to the rack
Grounding the UTM device
WARNING!
Correctly connecting the UTM device grounding cable is crucial to lightning protection and EMI
protection.
The power input end of the UTM device has a noise filter, whose central ground is directly connected to
the chassis to form the chassis ground (commonly known as PGND). You must securely connect this
chassis ground to the earth so the faradism and leakage electricity can be safely released to the earth to
minimize EMI susceptibility of the UTM device.
Attaching the ring terminal
1.
Cut the grounding cable as appropriate for connecting to the grounding strip.
2.
Peel 5 mm (0.20 in) of insulation sheath by using a wire stripper, and insert the bare metal part
through the black insulation covering into the end of the ring terminal.
3.
Secure the metal part of the cable to the ring terminal with a crimper.
4.
Cover the joint with the insulation covering, and heat the insulation covering with a blow dryer to
completely cover the metal part.
