Grounding The Chassis - Cisco UC560-FXO-K9 Quick Start Manual

Grounding the Chassis.

The UC 560 chassis must be reliably grounded with a supplementary
ground wire to comply with the relevant product safety standards. This
supplementary ground is in addition to the ground connection made by the
power cord.
For the supplementary ground connection, use size 14 AWG (2 mm) or
larger copper wire and an appropriate user-supplied ring terminal with an
inner diameter of 1/4 inch (5 to 7 mm).
The UC 560 is not NEBS-compliant.
N
OTE
To connect the chassis to a reliable earth ground:
Strip one end of the ground wire to the length required for the
S 1
TEP
ground lug or terminal.
• For the ground lug, strip approximately 0.75 in. (20 mm).
• For the user-provided ring terminal, as required.
Crimp the ground wire to the ground lug or ring terminal, using a
S 2
TEP
crimp tool of the appropriate size.
Attach the ground lug or ring terminal to the chassis. Tighten the
S 3
TEP
screws to a torque of 8-10 in-lb. (0.9-1. 1 N-m).
Connect the other end of the ground wire to a known reliable earth
S 4
TEP
ground point. If there is any doubt as to the reliability of the ground
point, contact a licensed electrician for assistance.
10 Cisco Unified Communications 500 Series Model UC 560 Quick Start Guide