3com 2948-SFP Plus 用户指南

    

 

   

The 3Com® Baseline Switch 2948-SFP Plus has been designed to the 
following standards:

Function 

 

8802-3, IEEE 802.3 (Ethernet), IEEE 802.3u  

 

 

 

 

(Fast Ethernet), IEEE 802.3ab (gigabit Ethernet), 

 

 

 

 

IEEE 802.1D (Bridging)

Safety   

 

Ul 60950-1, En 60950-1,  

 

 

 

 

CSA 22.2 no. 60950-1, IEC 60950-1

EMC Emissions  

En55022 Class A, CISPR 22 Class A, FCC Part 

 

 

 

 

15 Subpart B Class A, ICES-003 Class A,  

 

 

 

 

VCCI Class A, En61000-3-2, En61000-3-3.

EMC Immunity 

En55024

Operating Temperature  

0 to 40 °C (32 to 104°F).

Storage Temperature    

–40 to +70 °C (–40 to +158 °F)

Humidity        

 

0-95% (non-condensing)

Standard   

 

 

En 60068 (IEC 68)

Width   

 

     

440 mm (17.3 in.)

Depth   

 

 

265 mm cm (10.43 in.)

Height  

 

 

44 mm (1.73 in.) or 1U.

Weight  

 

 

2.0 kg (4.4 lb)

Mounting                     

Free-standing, or 19 in. rack-mounted  

 

 

 

 

 

using the supplied mounting kit