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Connecting the PSR300-12A
To connect the PSR300-12A:
1. Check that the AC power supply is off.
2. Connect one end of the AC power cord supplied with the power supply to the power receptacle on
the power supply (see Figure 43).
3. Connect the other end of the power cord to an AC power outlet.
Figure 43 Connecting the PSR300-12A
Connecting the PSR300-12D1 to a –48 VDC power source
To connect the PSR300-12D1 to a –48 VDC power source:
1. Check that the DC power supply 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 supply, and insert the plug into the receptacle (see callout 1 in Figure 44).
3. 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.
4. Tighten the screws on the plug with a flat-blade screwdriver to secure the plug in the power
receptacle (see callout 2 in Figure 44).
5. Connect the two wires at the other end of the power cord to the –48 VDC power source. Identify
the positive (+) and negative (-) marks on the two wires to avoid connection mistakes.
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