Connecting An External Rectifier; Figure 4.2 Power Cable; Figure 4.3 Connecting An External Rectifier - Samsung OfficeServ 7400 Installation Manual

4.2 Connecting an External Rectifier

The external rectifier supplies power to IP phones or a WBS24 when a PLIM module is
used. The internal power source has insufficient capacity.
The procedure to connect an external rectifier is as follows:
1) Switch off the power to the OfficeServ 7400 and external rectifier.
2) There are three screws to connect the power cable (Figure 4.2) to connectors A and B
(GND and -54 V) on the rear panel of the external rectifier (Figure 4.3)
The power cable comprises a red and a blue line and the ends of the lines are marked
GND (red), and -48VDC (blue).
Loosen the screws and connect the power cable as shown in Figure 4.3. Connect the
red line to A (GND) and the blue line to B (-54V) on the rear of the external rectifier
and tighten the screws.
A
B
© Samsung Business Communications

Figure 4.2 Power Cable

Red Line

Figure 4.3 Connecting an External Rectifier

OfficeServ 7400 Installation Guide
Button for external battery
Blue Line
External Battery Socket
External
Rectifier
OfficeServ
7400
4-3