Nortel Meridian 1 Succession 1000M Installation And Configuration Manual page 152

Page 152 of 562
553-3011-210 Standard 1.00
Installing the system ground
2 For a Cabinet system, if the cabinet is connected to a reserve power
supply unit (battery backup), make sure that the circuit breaker on that
unit is set to OFF.
DANGER OF ELECTRIC SHOCK
Never connect backup power to a cabinet that is not
grounded correctly.
3 Install an NTBK80 grounding block near the cabinet or chassis.
Note: Use the grounding block as a bridging point for ground wires from:
— up to three nearby Cabinet systems. If you have remote
cabinets, or when more than three cabinets are collocated, you
require additional grounding blocks.
— up to six nearby chassis and chassis expander pairs. If you have
additional chassis, you require additional grounding blocks.
4 For the Cabinet system: Install a #6 AWG (#40 Metric Wire Gauge)
ground wire from the ground lug in each cabinet to the NTBK80 grounding
block.
Connect the ground wire to the ground lug located in the bottom portion
of the cabinet next to the cable connectors. Route the ground wire through
the third groove from the left in the bottom of the cabinet. See Figure 53
on page 153.
Connect the ground wire to the grounding block. See Figure 55 on
page 155.
Place a DO NOT DISCONNECT tag on the ground wire.
Go to step 6.
October 2003