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2-24

Figure2-28 Connecting the power cord for a PSR75-12A/PSR150-A1 power supply (1)

Figure2-29 Connecting the power cord for a PSR75-12A/PSR150-A1 power supply (2)

Connecting the power cord for a PSR150-D1 power supply

CAUTION:

•

Connect the other ends of the wires for a PSR150-D1 power supply to a –

48 VDC power source,

with the negative wire (– or L–) to the negative terminal (–) and the positive wire (+ or M/N

) to the

positive terminal (+).

•

To use an H3C RPS to supply power to the power supply, use a compatible RPS power cord to

connect the RPS to the power supply.

•

The power cord color code scheme in Figure2-30 is for illustration only. The cable delivered for

your country or region might use a different color scheme. When you connect the power cord,

always identify the polarity symbol on its wires.

To connect the power cord for a PSR150-D1 power supply:

1. Correctly orient the plug at one end of the cable with the power receptacle on the power supply,

and insert the plug into the power receptacle. See callout 1 in Figure2-30.

If you cannot insert the plug into the receptacle, re-orient the plug rather than use excessive

force to push it in.

2. Tighten the screws on the plug with a flat-blade screwdriver to secure the plug in the power

receptacle. See callout 2 in Figure2-30.

3. Connect the other end of the power cord to a –48 VDC power source or an RPS.

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