3com Hub 1000 SX Manual De Usuario

7 Apply power to the hub in either of these ways:

■

Plug one end of the power cord into the AC input socket and the 
other end into a power source.

■

Connect the hub to a power supply, as described in “Using Optional 
Power Systems” later in this chapter.

If you place the hub on a desk or table, attach the supplied rubber feet to 
each bottom corner of the hub. Remove the protective cap from each 
downlink port and attach the proper cable to make the desired network 
connection. (For connector and cable information, see Table 2-1. For 
guidelines on making typical connections, see Chapter 3.) Apply power 
to the hub in either of these ways:

■

Plug one end of the power cord into the AC input socket and the 
other end into a power source.

■

Connect the hub to a power supply, as described in “Using Optional 
Power Systems” later in this chapter.

When power is applied, all the indicators on the front panel light 
momentarily. The UNIT STATUS LED is amber while POST is running. 
After approximately 30 seconds, the UNIT STATUS LED turns green. 
Verify that the PWR (power) LED remains lit, indicating that the hub 
is receiving power.

For explanations of the hub indicators, see Table 2-2.

Table 2-1   Downlink Connections 

SC

Short-wavelength (850 nm) fiber-optic:

62.5/125 

µ

 MMF 

50/125 

µ

 MMF 

260

550