M55 EXPLODED VIEW:
M55 JUNCTION BOX ASSEMBLY
M55
CEILING TILE
WITH 5/8″ HOLE
ADJUSTMENT
NUT TIGHTENS
BY HAND
JBM55 PLENUM
RATED BOX
MALE &
FEMALE
PHOENIX
CONNECTORS
BRASS
STRAIN
RELIEF FOR
OUTER CABLE
SLOTTED
MOUNTING
NUT
•
DRILL 5/8 INCH HOLE IN THE CEILING TILE.
•
OPEN JMB55 BOX LID AND PLACE BOX ON TOP OF 5/8 INCH HOLE IN THE CEILING TILE. (SEE #1)
•
INSERT M55 THREADED CEILING MOUNT THROUGH CEILING TILE AND INTO THE JBM55 BOX
•
SECURELY TIGHTEN THE KNURLED NUT. (SEE #2)
•
INSERT PLENUM WIRE (BELDEN 9451P OR 82761 OR EQUIVALENT THROUGH STRAIN RELIEF
(SEE #3) AND TERMINATE TO MATING PHOENIX CONNECTOR. (SEE #4 AND #5)
•
TIGHTEN STRAIN RELIEF AND CLOSE LID OF JMB55 BOX. (SEE #5)
•
LOOSEN M55 KNURLED NUT, ADJUST CABLE TO APPROXIMATE DESIRED LENGTH, AND TIGHTEN
NUT. (SEE #6)
•
TIGHTEN THE PLENUM CABLE STRAIN RELIEF NUT AND ARRANGE EXCESS M55 WIRE IN BOX
AND CLOSE LID.(SEE #7)
•
FINE ADJUSTMENTS TO MICROPHONE HEIGHT CAN BE MADE EASILY FROM BELOW CEILING BY
LOOSENING THE M55 KNURLED NUT, LENGTHENING/SHORTENING WIRE AND RETIGHTENING
KNURLED NUT. (SEE #8)
BOTTOM VIEW OF
JUNCTION BOX
