Alcatel-Lucent 7450 ESS-7 - Page 123

Field Replaceable Units
7450 ESS-7 Page 123
To install a DC PEM:
Step 1 Remove the replacement DC PEM from the packaging.
Step 2 Make sure that the circuit breaker (ON/OFF) on the PEM is in the OFF ( O ) position.
Step 3 Align the PEM with the slot guides in the appropriate power slot. Slide the unit into the
slot until the connectors are seated with the receptacle in the rear of the slot.
Step 4 Secure the module into place by tightening the captive screws.
Step 5 Reconnect the prepared power cables terminated only with a UL-listed copper, standard
barrel, 2-hole lug with two .200-inch (
.508 cm) diameter holes on a .625-inch (1.6 cm)
spacing such as a Panduit LCC6-10A-L. Tighten with a torque wrench to 27 pound-
inches. Do not overtighten.
Step 6 Replace the safety cover (Figure 40).
Step 7 Flip the circuit breaker (ON/OFF) on the PEM to the ON position when ready.
Figure 40: Replace the Safety Cover
OFF
O
ON
I
V
D
C
RTN