H3C Technologies H3C S5800 Series Switches - Manual (Page 72)

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Figure 67 Connect an AC power cord to the PSR300-12A/PSR300-12A1/PSR300-12A2 (II)
Connecting the PSR300-12D1/PSR300-12D2 to a –48 VDC
power source
1. Check that the DC power module is off.
2. 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 receptacle (see callout 1 in
Figure 68 ).
The 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.
3. Tighten the screws on the plug with a flat-blade screwdriver to secure the plug in the power
receptacle (see callout 2 in
Figure 68 ).
4. Connect the two wires at the other end of the power cord to the –48 VDC power source.
CAUTION:
Identify the positive (+) and negative (-) marks on the two wires to avoid connection mistakes.
1
2