Avaya S8700 - Install Coupled Bonding Conductor Wires; Connect Grounds for DC Battery and Power Cabinets; Connect DC Power Cabinet Approved Ground

86
Installing an Avaya MCC1 Media Gateway
October 2002
Install Coupled Bonding Conductor Wires
This is a conductor that connects to the single-point ground block and runs adjacent to pairs in
an associated cable. The mutual coupling between the CBC and the pairs reduces potential
differences in terminating equipment. The conductor consists of a 10 AWG (#25) (6 mm
2
) wire
terminated at the CBC ground terminal bar at the Main Distribution Frame (MDF).
1 At the DC power cabinet, connect a 10 AWG (#25) (6 mm
2
) ground wire to the Ground
Discharge Bar. See ‘‘Typical Power and Ground for a DC power cabinet’’ on page 82
.
2 Route the 10 AWG (#25) (6 mm
2
) ground wire to the CBC ground terminal bar at the
MDF. Be sure a minimum of 12 in. (30.5 cm) spacing is maintained between the CBC
and other power and ground leads.
3 Tie wrap the ground wire to the inside wiring cable.
NOTE:
The ground wires are connected to the CBC as instructed in ‘‘Cabling Media Gateways’’
on page 141.
Connect Grounds for DC Battery and Power
Cabinets
NOTE:
The wire in the next step must be sized for a maximum voltage drop of 0.5 VDC in each
leg of the DC distribution. In this example 1 AWG is used.
1 Measure and cut a minimum of a 1 AWG (#70) (44 mm
2
) wire long enough to reach
between the ground connection terminal in the DC Battery cabinet and the Ground
Discharge Bar in the DC Power cabinet. See ‘‘Typical Power and Ground for a DC
power cabinet’’ on page 82.
2 Crimp terminal lugs on each end of the wire. Terminal lugs are furnished as part of
D-181895, Kit of Parts (Comcode 105434559).
3 At the DC power cabinet, connect the wire to the Ground Discharge Bar.
4 Route the wire through one of the holes in the side of the cabinets and terminate it on the
Ground Connection Terminal in the DC battery cabinet.
Connect DC Power cabinet Approved Ground
NOTE:
The wire must be at least as large as the largest distribution wire in the S8700
Multi-Connect configuration (required by UL). In this example 1 AWG is used.
1 At the DC power cabinet, connect a 1 AWG (#70) (44 mm
2
) ground wire to the Ground
Discharge Bar. See ‘‘Typical Power and Ground for a DC power cabinet’’ on page 82
.
2 Route the ground wire out of the cabinet and terminate it on the approved ground. The
approved ground must be identified with a grounding tag (FORM 15657NR or
equivalent). See Approved Grounds
.