Chapter 3 Hardware Overview

There are two Gigabit Ethernet ports. The speed of the Gigabit Ethernet ports can be 10 Mbps, 100Mbps or 1000Mbps and the duplex mode can be half duplex (at 100 Mbps) or full duplex.

An auto-negotiating port can detect and adjust to the optimum Ethernet speed (100/ 1000Mpbs) and duplex mode (full duplex or half duplex) of the connected device.7

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

3.1.1.1 Default Ethernet Settings

The factory default negotiation settings for the Ethernet ports on the switch are:

•Speed: Auto

•Duplex: Auto

•Flow control: Off

3.1.2Mini-GBIC Slots

There are two mini-GBIC (Gigabit Interface Converter) slots for mini-GBIC transceivers. A transceiver is a single unit that houses a transmitter and a receiver. The switch does not come with transceivers. You must use transceivers that comply with the SFP Transceiver MultiSource Agreement (MSA). See the SFF committee’s INF-8074i specification Rev 1.0 for details.

You can change transceivers while the switch is operating. You can use different transceivers to connect to Ethernet switches with different types of fiber-optic connectors.

•Type: SFP connection interface

•Connection speed: 1 Gigabit per second (Gbps)

"To avoid possible eye injury, do not look into an operating fiber-optic module’s connectors.

3.1.2.1Transceiver Installation

Use the following steps to install a mini GBIC transceiver (SFP module).

1Insert the transceiver into the slot with the exposed section of PCB board facing down.

Figure 9 Transceiver Installation Example

2Press the transceiver firmly until it clicks into place.

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ES-1552 User’s Guide