DC Power
The Acme Packet 3900 can be powered by central
office –48 VDC operations with a DC-DC supply. The red handle on the front panel of the
power supply is used to remove the power supply from the chassis. The black locking
handle, when moved from left to right, unlocks the power supply from the chassis when
removing the power supply. A removable terminal block on the DC power supply serves as
the DC power interconnect. The terminal block must be removed before the black locking
handle can be moved to free the power supply.
DC Power Cords
A mating connector (terminal block) for a DC power cord ships with each DC power supply. You must create the above power cord with using the supplied Terminal Block. You must supply all cables needed and the #6 Ring Terminal for the Ground.
| Wire Color | Lead Designation (DC Power Supply) |
|---|---|
| Red | RTN |
| Green/Yellow | GND |
| Black | -48 V |