Version 7.0 71 Mediant 3000
Hardware Installation Manual 5. Cabling the Device
5.7.2 Connecting to DC Power Supply
The device is supplied with two PEM modules. Each PEM module is equipped with a DC
power inlet (Phoenix Contact type MSTB2.5/2-STF, 5.08 mm). The DC input is floating with
a maximum input current of 5.25 A.
Depending on customer requirements, the power cabling is available in one of the following
configurations:
DC terminal block with a screw connection type: the device is provided with a pre-
installed terminal block in the chassis (DC inlet). This terminal block must be used with
14-AWG wires for connecting to the DC mains.
DC terminal block with a crimp connection type: the device is supplied with a 48-
VDC power feed cable crimped to this terminal block. The connector types that
constitute this connection is as follows:
• Phoenix contact type crimp terminal female 14-16 AWG (P/N: STG-MTN 1,5-2,5)
• Phoenix female terminal block shroud 7.62 mm 2 pole cable mounting (P/N:
PCC4/2-ST-7,62)
Electrical Caution
Before crimping the power wires to the terminal blocks, ensure that the power
wires are not connected to the DC mains.
To connect power using a DC terminal block crimp connector:
1. Remove the terminal block screw from the chassis power socket (labeled DC IN), by
unscrewing the two screws located on the front of the terminal block.
2. Connect the two insulated wires to the correct DC power outlet. Ensure that the
connections to the DC power outlet maintain the correct polarity (positive and
negative).
3. Insert the supplied DC power feed cable crimped to the terminal block into the DC inlet
(labeled DC IN). Ensure that the hook on the terminal block snaps into the groove
above the DC inlet.
When power is received, the PWR IN LED is lit (green).
Figure 5-20: Power Feed Cable Terminated with Crimp-Connection Type DC Terminal Block
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