ES-2048 User’s Guide
42 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 48 10/100Mbps auto-negotiating, auto-crossover Ethernet ports. In 10/
100Mbps Fast Ethernet, the speed can be 10Mbps or 100Mbps 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:
2 100/1000
Mbps RJ-45
Gigabit
Ports
Connect these Gigabit Ethernet ports to high-bandwidth backbone network Ethernet
switches or use them to daisy-chain other switches.
2 Mini-
GBIC Ports
Use mini-GBIC transceivers in these slots for fiber-optical connections to backbone
Ethernet switches.
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
