Nortel Networks 8000 Series - Manual (Page 39)

Adding and replacing DC power supplies 39
Installing a DC Power Supply in an Ethernet Routing Switch 8000 Series Chassis
Figure 15 DC power supply input and ground stud location (8005)
9 Make sure that the +DC cable is always connected to the + terminal and that
the -DC cable is always connected to the - terminal.
Danger: Make sure that the DC power source is off by switching off the
circuit breaker or disconnected at the remote end before you connect the
terminal leads to the power supply.
11400FA
-DC
+DC
3
2
1
1 = Ground studs
2 = Positive power inputs
3 = Negative power inputs