Figure 18
DC power supply connections
Auxiliary equipment power
Terminals, printers, modems, and other data units used in conjunction with
the Option 11C require special wiring considerations.
Power for system equipment in the switch room must:
•
be powered from the same panel or transformer as the Option 11C
•
be grounded to the same panel or transformer as the Option 11C
•
be tagged at the panel to prevent unauthorized interruption
•
not be controlled by a switch between the breaker and the equipment.
Service receptacles for Option 11C AC systems and associated equipment
must be:
•
of the isolated ground type, such as NEMA IG5-15
System and site requirements Page 53 of 408
Option 11C
Planning and Installation Guide