AT&T Release 2.0 Telephone User Manual


 
Installing the Control Unit
NOTE:
The combined pullout force of the backboard should be at least 650
pounds (295 kilograms).
Power and Grounding
Proper power and grounding are essential for correct and safe functioning of
the system.
Use
this section to verify that all power and grounding requirements are met.
CAUTION:
If any of these requirements are not met, have the customer contact
a licensed electrician. Do not install the system until all requirements
are met.
The load center of appropriate current rating must be equipped with
circuit breaker(s) labeled
120 VAC, 15 amps.
Each breaker must protect one dedicated quad AC outlet or two
dedicated duplex AC outlets.
All AC outlets must be connected to the same load center and must
have the ground wire connected to the single-point ground bar on the
first AC outlet (see Figure 2-1).
One outlet must have an attached ground bar connected by a #6 AWG
copper wire to an approved ground. This ground bar is the system’s
single-point ground (see Figure 2-1).
2-6
Power and Grounding