Nortel SONET AccessNode Quick Reference Manual page 14

Left even
1-4 ABM bay ac power requirements
Figure 1-2
IBN ac power distribution and utility receptacle ground wiring scheme
Isolated bonding network
Unless otherwise specified by the
operating company or by local codes, the
receptacles are standard 3-conductor
receptacles and the receptacle boxes are
Isolated ground
not insulated from frame ground.
receptacle (orange)
Insulated metal-clad cable unless
(See Note 1)
otherwise required by the customer
Dedicated ACEG
ACEG
Insulated metal clad cable
or insulated conduit unless
otherwise required by the
customer
AC feed in conduit or armored cable:
- L, N, and ACEG for 120 V ac;
- L1, L2, N, and ACEG for 208/240 V ac
Note 1: For standard utility receptacles, 3 conductors are wired (L, N, and ACEG). For the
isolated-ground receptacles (orange) 4 conductors are wired to include a dedicated ACEG lead.
Note 2: In compact installations, such as customer-located equipment, the building principal
ground (BPG) reference serves the same functions as the SPG, and the ac primary panel is also
the dedicated panel within the isolated bonding network (IBN).
AccessNode P0887749 Issue 1.0
Standard receptacle
(See Note 1)
L L
N N
ACEG
ACEG
SPG
Dedicated
ac panel
(See Note 2)
ACEG
Building principal
Primary ac panel
ground (BPG)
Other grounds
within the office
IBN