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If the power supply of chassis is normal, but the LED Lamps of converters are off, there 
might be any problems with the connection between the plug board of chassis and the 
power supply, you should stop the electrical current and pull out the power adapter for 
checking and reinserting. 
 

2.  Changing the power supply for new ones 

When one of the dual power supply broke down, the chassis can work normally. You 
should pull out the broken one .Then pull out the plug from it, and change it for another 
on. connect the plug again. When this is done, the chassis and converters will keep 
working. 

 
 

SPECIFICATIONS 

Number of slots: 

14 

Media converters adapted:  10/100M or 1000M or 10/100/1000M stand-alone   

media converters   

Power in: 

AC 100 V~260 V; OR DC 48V 

Power out: 

DC 5V, 12A 

Diameter of DC plug: 

2.5/5.5 mm 

Ripple: 

50 Mv 

Noise: 

50 Mv 

Protection of power supply:  circuit-breaker when overvoltage; circuit-breaker when 

overflow; circuit-breaker when short circuit 

Operating Temperature: 

0°C ~50°C 

Storage Temperature: 

-20°C ~85°C 

Humidity:  

5%~95%  

Dimensions: 

L485, W231, H90 mm; 483mm (19 inches) 2U 

 
 
 

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