3com S7906E Guide D’Installation Rapide

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Table 1-6 Technical specifications of the PSR320-A power module 
Item 
Specifications 
Rated voltage range 
100 VAC to 240 VAC; 50 Hz or 60 Hz 
Maximum output power 
300 W 
Dimensions (H × W × D) 
40 × 140 × 350 mm (1.57 × 5.51 × 13.78 in.) 
 
 
The PSR320-A uses a 10-A AC power cable. 
 
PSR320-D 
Figure 1-10 PSR320-D power module 
 
(1) Grounding screws 
(2) RTN terminal (+) of DC input 
(3) Negative terminal (–) of DC input (–48 V to –60 V) 
(4) Power switch 
(5) Power LED 
(6) Power module handle 
(7) Captive screws 
 
As shown in the figure, above the power switch is the power LED. If the power LED is green, the power 
supply operates normally. If the power LED is red, the power supply is abnormal. 
Table 1-7 Technical specifications of the PSR320-D power module 
Item 
Specifications 
Rated voltage range 
–48 VDC to –60 VDC 
Maximum output power 
300 W 
Dimensions (H × W × D) 
40 × 140 × 350 mm (1.57 × 5.51 × 13.78 in.)