ES-2108 Series User’s Guide

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

3.1.2.1 Default Ethernet Settings

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

•Speed: Auto

•Duplex: Auto

•Flow control: off

3.1.3Mini-GBIC Slot

This is a slot for mini-GBIC (Gigabit Interface Converter) 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.

There is one Gigabit Ethernet and mini-GBIC port each. The mini-GBIC port has priority over the Gigabit port. This means that if the mini-GBIC port and the corresponding Gigabit port are connected at the same time, the Gigabit port will be disabled.

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)

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

3.1.3.1 Transceiver 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 12 Transceiver Installation Example

2Press the transceiver firmly until it clicks into place.

3The switch automatically detects the installed transceiver. Check the LEDs to verify that it is functioning properly.

Chapter 3 Hardware Overview

39