H3C Technologies H3C S5800 Series Switches - Manual (Page 70)

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Figure 64 Connect an AC power cord to the PSR150-A/PSR150-A1 (II)
Connecting the PSR150-D/PSR150-D1 to a –48 VDC power
source
1. Unpack the DC power cord, correctly orient the plug at one end of the cable with the power
receptacle on the power module, and insert the plug into the power receptacle (see callout 1
in Figure 65 ). The power receptacle is foolproof. 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 Figure 65 ).
3. Connect the two wires at the other end of the power cord to a –48 VDC power source.
CAUTION:
Identify the positive (+) and negative (-) marks on the two wires to avoid connection mistakes.
Figure 65 Connect a DC power cord to the PSR150-D/PSR150-D1