Juniper EX2500-RMK-4POST ユーザーズマニュアル

EX2500 Ethernet Switch Technical Specifications

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Chapter 1: EX2500 Ethernet Switch Description and Specifications

Environmental specifications for the EX2500 switch unit are listed in Table 13. 

Power specifications for the EX2500 switch unit are listed in Table 14.  

Table 13:  Environmental Specifications

Temperature, ambient operating

0ºC to +40ºC

Temperature (fan failure or power 
supply failure), operating 

0ºC to +35ºC

Temperature, storage

-20ºC to +70ºC

Relative humidity (non-condensing), 
operating 

10 to 90%

Relative humidity (non-condensing), 
storage 

10 to 95%

Altitude, operating 

3,050 m (10,000 feet)

Altitude, storage 

 4,573 m (15,000 feet)

Acoustic noise

Less than 65dB

Heat dissipation

1100 BTU/hour (maximum)

Table 14:  Power Specifications

Number of power supplies

2 (1+1 redundant)

AC-input frequency (universal)

50 to 60 Hz

AC-input voltage (universal)

100 to 240 VAC

AC-input current

2.75A (RMS) @ 100VAC

1.15A (RMS) @ 240VAC

AC-input fuse 

5A (internal)

Power supply output power

275W each

System power dissipation

200W typical

DC-Output voltage

12V nominal

DC-Output current

15A (typical)