NEC Electra Elite IPK Installation And Maintenance Manual page 57

M E G A C O S T A T I O N
H A R D W A R E , I N S T A L L A T I O N , A N D
M A I N T E N A N C E M A N U A L
N E C U n i f i e d S o l u t i o n s , I n c .
D o c u m e n t R e v i s i o n 4