DC Power
The Acme Packet 4600 can be powered by central office –48 VDC operations with a
DC-DC supply. The handle on the front panel of the power supply is used to remove
the power supply from the chassis. The gray locking handle, when moved from right
to left, unlocks the power supply from the chassis when removing the power supply
A terminal block on the DC power supply serves as the DC power interconnect.
DC Power Cords
A DC power cord with mating connectors ships with each DC power supply.
Wire Color
Lead Designation
(DC Power Supply)
Alternate Lead Designation
(DC Power Supply)
Red
RTN
-48 VDC
Green/Yellow
GND
GND
Black
-48 V
RTN
Grounding Terminals
The grounding terminals are used to attach the Acme Packet 4600 chassis to a local
earth ground. The terminals are located to the left of Power Supply B on the rear of the
Acme Packet 4600. The Acme Packet 4600 is shipped with a lug and mounting nuts
attached to the chassis along with a pre-made ground cable. A loose lug is included
with the shipment so that the user has the potential to crimp the lug to a custom cable
if desired.
Cooling Components
The Acme Packet 4600 System must remain well ventilated for reliable and continuous
operation. The cooling features of the chassis include:
•
Fan module
•
Fan Filter
When servicing your cooling components, make sure to read the Acme Packet 4600
Service Manual .
Chapter 2
Cooling Components
2-14