ZyXEL Communications ZyXEL Dimension ES-2108-F: 3 Hardware Connections

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appropriate holes on the rack. Secure the switch to the 

rack with the rack-mounting screws. 

3 Hardware Connections 

3.1 Auto-negotiating and Auto-crossover RJ- 45 ports

Your switch comes with auto-negotiating, auto-crossover 

ports. Depending on the model, these ports are either fast 

Ethernet (10/100 Mbps) or Gigabit (10/100/1000 Mbps) ports. 

Auto-negotiating ports can detect the speed of incoming 

transmissions and allow either half duplex transfer mode (10/

100 Mbps only) or full duplex mode. Auto-crossover means 

that you can connect the switch to a computer or hub using 

either a straight-through or a crossover Ethernet cable.

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3.2 Network Cables

You can use unshielded twisted pair (UTP) or shielded 

twisted-pair (STP) Ethernet cables for RJ-45 ports. Make sure 

the cable length between connections does not exceed 100 

meters (328 feet). The following table describes the types of 

network cable used for different connection speeds.

Table 1   

Network Cable Types 

The 

LNK/ACT

 LED should flash when data is being sent 

between your switch and a connected device.

3.3 Power Connection

Connect one end of the supplied power cable or power 

adaptor to the power receptacle on the switch and the other 

end to the appropriate power source. The 

PWR

 LED should 

turn steady on if the switch is receiving power. 

SPEED

NETWORK CABLE TYPE

10Mbps

100 

Ω

 2-pair UTP/STP Category 3,4 or 5

100Mbps

100 

Ω

 2-pair UTP/STP Category 5

1000Mbps

100 

Ω

 4-pair UTP/STP Category 5