Chapter 2 Hardware Description and Connection

2.1.1 Rear Panel Power Connection

Connect one end of the supplied power cord to the power receptacle on the back of the Switch and the other end to the appropriate power source.

For ES1100-8P, ES1100-16, ES1100-16P and ES1100-24E, use the POWER ON/OFF switch to have the Switch power on or off.

2.2 Front Panel

The front panel of the Switch includes the auto-negotiating 10 Base-T/100 Base-TX RJ-45 ports and the LEDs. Only the ES1100-24G’s front panel provides the 10 Base-T/100 Base-TX/1000 Base-T RJ- 45 ports with shared 100M/1G mini-GBIC open slots.

2.2.1 RJ-45 Auto-negotiating Ports

All the RJ-45 ports in the ES1100 series are auto-negotiating and auto-crossover.

An auto-negotiating port can detect and adjust to the optimum Ethernet speed (10/100/1000 Mbps) and duplex mode (full duplex or half duplex) of the connected device.

An auto-crossover (auto-MDI/MDI-X) port automatically works with a straight-through or crossover Ethernet cable.

2.2.2 IEEE 802.3az EEE (for ES1100-8P/16/16P/24/24E)

The Switch supports the IEEE 802.3az EEE (Energy Efficient Ethernet) standard to help reduce power consumption. This allows the Switch to go into power saving mode and switch off part of receive and transmit circuitry when it is not transmitting or receiving data through an Ethernet connection.

An EEE-enabled device initiates Low Power Idle (LPI) signals to negotiate and wake up the remote device when there is data to be transmitted. To use EEE, both devices should be EEE compliant.

EEEis configured on a per-system basis in the Switch. If one of the networking devices that connect to the Switch doesn't support EEE, EEE may not work in the Switch to save power.

The EEE feature is enabled by default on the ES1100-16, ES1100-24 and ES1100-24E. Press in the IEEE 802.3az EEE ON/OFF button on the ES1100-8P and ES1100-16P front panel to turn on the

EEEfeature. Disable it if the remote side doesn't support it or you don't want the network performance to be impacted due to the latency from the additional time required for the sleep and wake transition.

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ES1100 Series User’s Guide