ZyXEL Communications GS3700 Series Uživatelská příručka stáhnout pdf (Strana 33)

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Chapter 3 Hardware Overview

GS3700/XGS3700 Series User’s Guide

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

• Dual Personality Interface: Fiber-optic module first

3.1.2 SFP/SFP+ Slots

These are four slots for Small Form-Factor Pluggable (SFP) or SFP+ modules, such as an SFP/SFP+

transceiver. The SFP+ (SFP Plus) is an enhanced version of the SFP and supports data rates of 10

Gbps. A transceiver is a single unit that houses a transmitter and a receiver. Use a transceiver to

connect a fiber-optic cable to the Switch. The Switch does not come with transceivers. You must

use transceivers that comply with the Small Form-Factor Pluggable (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 or SFP+ connection interface

• Connection speed: 1 or 10 Gigabit per second (Gbps)

To avoid possible eye injury, do not look into an operating fiber-optic

module’s connectors.

3.1.2.1 Transceiver Installation

Use the following steps to install a transceiver.

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

Figure 8 Transceiver Installation Example

2 Press the transceiver firmly until it clicks into place.

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