Connect Ac Power; Connect Dc Power And Ground; Task List: Connect Dc Power And Ground - Avaya S8700 Installing Manual

Connect AC Power

Set the main circuit breakers on the power distribution unit OFF.
1
2 Connect media gateway AC line cords to the AC power receptacles.
NOTE:
Do not power up the S8700 Multi-Connect configuration at this time.

Connect DC Power and Ground

!
CAUTION:
Grounding of the S8700 Multi-Connect configuration shall comply with the general rules
for grounding contained in Article 250 of the National Electrical Code, NFPA 70. For
more information, refer to
The grounding methods for the DC-powered S8700 Multi-Connect configuration are more
complex than that of an AC-powered S8700 Multi-Connect configuration.
''Typical Power and Ground for a DC power cabinet'' on page 60
ground layout for a DC power cabinet. The size of the wire required for the -48 volt DC and -48
volt return must ensure the voltage supplied by the battery plant is maintained between -42.5
and -54.2 volts DC at all times for proper operation and to prevent hardware damage. The wire
must be sized for a maximum voltage drop of 0.5 VDC in each leg of the DC distribution.

Task List: Connect DC Power and Ground

Perform these tasks to connect DC power and ground, power distribution unit (J58890CH-1
Only):
• ''Install Rectifier Modules and Battery Interface Unit'' on page 60
• ''Connect Power and Ground(s)'' on page 62
Perform these tasks to connect DC Power and Ground (J58890CF Only):
NOTE:
These installation tasks correspond to the numbers in
DC power cabinet'' on page
''Install Coupled Bonding Conductor Wires'' on page 64
•
''Connect Grounds for DC Battery and Power Cabinets'' on page 64
•
• ''Connect DC Power cabinet Approved Ground'' on page 64
• ''Connect AC Power to DC Power cabinet'' on page 65
• ''Connect Ground Wires for DC Power Systems'' on page 65
''Turn Circuit Breakers Off'' on page 65
•
''Connect DC Power to the Media Gateways'' on page 66
•
Approved Grounds.
60:
May 2002
Installing the S8700 Multi-Connect
Installing an Avaya MCC1 Media Gateway
shows a typical power and
''Typical Power and Ground for a
59