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1 console port, 2 ethernet ports, 1 default ethernet settings – ZyXEL Communications LAYER 3 ES-3124 User Manual

Page 48: 1 console port 3.1.2 ethernet ports

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ES-3124 User’s Guide

46

Chapter 3 Hardware Overview

3.1.1 Console Port

For local management, you can use a computer with terminal emulation software configured
to the following parameters:

• VT100 terminal emulation
• 9600 bps
• No parity, 8 data bits, 1 stop bit
• No flow control

Connect the male 9-pin end of the console cable to the console port of the switch. Connect the
female end to a serial port (COM1, COM2 or other COM port) of your computer.

3.1.2 Ethernet Ports

The switch has 24 100/1000Mbps auto-negotiating, auto-crossover Ethernet ports. In 100/
1000Mbps Fast Ethernet, the speed can be 100Mbps or 1000Mbps and the duplex mode can be
half duplex or full duplex.

There are two pairs of Gigabit Ethernet/mini-GBIC ports. The mini-GBIC ports have priority
over the Gigabit ports. This means that if a mini-GBIC port and the corresponding Gigabit port
are connected at the same time, the Gigabit port will be disabled. The speed of the Gigabit
Ethernet/mini-GBIC ports can be 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.

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

Console Port

Only connect this port if you want to configure the switch using the command line

interface (CLI) via the console port.

Management

Port

Connect to a computer using an RJ-45 Ethernet cable for local configuration of the

switch.

Table 1 Panel Connections (continued)

CONNECTOR

DESCRIPTION