Product information guide

Product Information Guide 6 T217
GROUNDING REQUIREMENTS
Proper grounding is fundamental as protection against lightning/power surges, power
crosses on CO lines, and static discharge to equipment. The green-wire ground of the AC
outlet is the only ground serving the SPIRIT system. It must be connected to the building
1.
2.
3.
4.
ground. Use the following procedures to verify grounding:
Check the AC outlet wiring with an Ideal 61-035 tester or equivalent. The tester
comes with instructions.
Visually inspect the telco protection bonding to the AC power ground. Ensure that
local practices have been followed. To minimize costs, no more than 10 minutes
are allowed for this inspection. If more than 10 minutes is required, do not
complete the inspection.
If you find inadequate grounding/protection, and the the customer owns the
equipment or has a sales-type lease, warn him/her that lightning and power-surge
damage are excluded from warranty and contract coverage. Also tell the customer
that the risk from operating equipment without adequate protection is quite high.
The customer can buy a TII1428 AC power line surge protector (PEC 8310-001).
While surge protection purchase is not required when buying the system, remind
the customer that lightning and power surge damage are excluded from warranty
and contract coverage. Purchase of the surge protector is a way to reduce, but
not eliminate, the customer’s risk, If s/he is under a term plan, the surge protector
can be installed at AT&T expense, if local practice calls for it.
AT&T – PROPRIETARY