Connecting The -48V Dc Power Cord - NEC QX-S5526P Installation Manual

Installation Guide
QX-S5500 Series Ethernet Switches
Connector(on the Device Side)
IEC-320-C13

3.2.2 Connecting the -48V DC Power Cord

CAUTION:
Before connecting to DC power cord, disconnect the switch and a power supply.
QX-S5526P-D and PSR150-D1 of the QX-S5526T have a –48 VDC power receptacle,
allowing the use of the –48 VDC power supply in the equipment room.
Follow these steps to connect a –48V DC power cord to the switch:
1) Please install an appropriate ring terminal which matches the outside power supply in
the DC power supply side terminal for power cord.
2) Please be careful for the one of the switch connection side connector of power cord.
Please connect a plug to DC power receptacle of the switch. (When the direction of the
connector shape is wrong, to avoid connection mistakes it cannot stick in a DC power
receptacle.)
3) Use a flat-blade screwdriver to fix the two screws on the DC plug clockwise to secure
the plug to the DC receptacle. Connect the other end of the DC power cord to the
external -48 VDC equipment-room power supply system. A black code grounds GND
(-48V.) blue or a white code is connected to a terminal for-48V.
4) Check whether the system status LED (PWR/SYS) on the front panel of the switch is
ON. If yes, the power is properly connected.
Figure 3-4 Attachment DC power cable（left: QX-S5526P-D, right: PSR150-D1 of the QX-S5526）
Cable Ratings Cable Length
Comply the standard of
250V, 10A
each country
3-4
3 Installing the Switch
Plug(Power Facility)
Comply the standard of
each country