SMC Networks SMC-EZ108DT warranty Features and Benefits, Front-Panel LEDs, Front-Panel Ports

ABOUT THE EZ SWITCH 10/100

SMC-EZ108DT

The EZ Switch™ 10/100 (SMC-EZ108DT) is an 8-port Fast Ethernet switch. Its 8 10BASE-T/100BASE-TX ports deliver dedicated 10/100 Mbps links to each attached LAN segment—all with conventional cabling and adapters. Auto- Negotiation is used to select the optimal transmission speed and communication mode for each connection. With store- and-forward switching and flow control, maximum data integrity is always maintained, even under heavy loading. Easy installation and reliability make this plug-and-play switch an ideal choice for smooth Fast Ethernet integration.

Features and Benefits

◆Auto-Negotiation of half or full-duplex on all ports

◆ANSI/IEEE 802.3u compliance ensures compatibility with standards-based hubs, switches and cards from any vendor

◆Store-and-forward switching ensures error-free transmission

◆Half- and full-duplex flow control prevents packets from being dropped under heavy loading

◆Plug and play

◆Built-in wiring crossovers on all ports allow connections to servers and workstations to be made with straight-through cabling

◆“At-a-glance” LEDs for port and system status monitoring

◆Desktop and rack mountable

Front-Panel LEDs

The front panel of the switch provides a link status LED for each RJ-45 port. In addition, the front panel also contains status LEDs for “at-a-glance” system monitoring. The following table details the functions of the various indicators:

Port and Switch Status LEDs

LEDs	Condition	Status
Pow er	Green	Sw itch is receiving pow er.
Link/Act	Green	Indicates that the connection betw een
		port and attached device is valid.
	Flashing Green	Indicates that the sw itch is transmitting
		or receiving data.
100M	Green	Indicates that the port is operating at
		100 Mbps.
FDX	Green	Indicates that the port is operating in
		full-duplex mode.
	Flashing Green	Indicates a collision occured on the
		port segment w hen operating in half-
		duplex mode.

Front-Panel Ports

The front-panel ports are dual-speed RJ-45 ports with built-in wiring crossovers. PCs can be connected to these ports with straight-through cable. Each port supports Auto-Negotiation, so the optimum communication mode (half or full duplex) and data rate (10 Mbps or 100 Mbps) are selected automatically.

Port 8 on the switch doubles as a crossover port and a straight-through daisy-chain port. The daisy-chain port makes it convenient to connect straight-through cable from the EZ Switch 10/100 to a crossover port on another device.

Rear Panel

The AC power receptacle is located on the rear panel of the switch.

INSTALLING THE SWITCH

The EZ Switch 10/100 can be placed on a desktop or shelf, or installed in a standard 19-inch equipment rack.

Equipment Checklist

After unpacking the EZ Switch 10/100, check the contents of the box to be sure you’ve received the following components:

•EZ Switch 10/100 SMC-EZ108DT

•Appropriate AC power cable

•Four adhesive foot pads

•SMC Warranty Registration Card

•This User Guide

Selecting a Site

Be sure to follow the site selection guidelines below when choosing a location:

υ Select a suitable location for the switch:

•It should be accessible for installing, cabling and

maintaining the switch.

•The temperature and humidity should be within

the ranges listed in the specifications.

• The status LEDs should be clearly visible.

•There should be adequate space (approximately two inches) on all sides for proper air flow.

υBefore rack mounting the switch, pay particular

attention to the following factors:

•Temperature: Since the temperature within a rack assembly may be higher than the ambient room temperature, check that the rack- environment temperature is within the specified

operating temperature range.

•Mechanical Loading: Do not place any

equipment on top of a rack-mounted switch.

•Circuit Overloading: Be sure that the supply

circuit to the rack assembly is not overloaded.

•Grounding: Rack-mounted equipment should be properly grounded. Particular attention should be given to supply connections other than direct connections to the mains.

υMake sure twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures and other sources of electrical interference such as radios, transmitters, etc.

υMake sure that a properly grounded power outlet is within 8 feet (2.44 meters) of the switch and is powered from an independent circuit breaker. As with any equipment, using a filter or surge suppressor is recommended.

Instructions

1.Positioning the Switch: For desktop or shelf mounting, attach the four adhesive foot pads to the bottom of the switch. For rack-mounting, attach the mounting brackets to both sides of the switch with the screws provided, then install the switch in the rack.

2.Applying Power: Plug one end of the power cable into the power receptacle at the back of the switch, and the other end into an appropriate electrical outlet. Check the Power LED to be sure it is on.

Note: It is not necessary to power off the switch before connecting or disconnecting any UTP cables, as these actions will not disrupt the operation of other devices attached to the switch.

3. Connecting PCs: Connect each PC to an RJ-45 port

on the switch with a straight-through twisted-pair cable segment, maximum length 100 meters (328 feet). The EZ Switch 10/100 will support up to 8 PCs. However, if using port 8 be sure to use the fixed crossover port marked “X” on the switch.

Note: If an attached device does not support Auto- Negotiation, the data rate will be sensed automatically and the communication mode will default to half duplex.

4. Cascading Switches and Other Network Devices: If you need more ports, connect the daisy-chain port, marked “=” on port 8, to a crossover port on another device. Be sure to use straight-throughtwisted-pair cable, maximum length 100 meters (328 feet). Note that if you are using the daisy-chain port you cannot use the fixed crossover port, marked “X” on port 8.

Note: Alternatively, you can cascade from any crossover port on the switch to a daisy-chain port on another device. You may also connect to crossover ports at both ends if you use a crossover cable. See the “Cable Specifications” and “Connectivity Guidelines” sections of this guide for further information.

SAMPLE APPLICATIONS

Some typical applications for the EZ Switch 10/100 are illustrated below:

Standalone LAN

High-Speed Switch Links

TROUBLESHOOTING

1. Symptom

Power LED does not light after power on.

Probable Causes

Power outlet or power cord may be defective.

Possible Solutions

• Check for loose connections.

•Check the power outlet by using it for another device.

•Replace the power cord.

2 . Symptom

Link LED does not light after connection is made.

Probable Causes

Switch port, network card or cable may be defective.

Possible Solutions

•Check that the switch and attached device are both powered on.

•Be sure the network cable is connected to both devices.

•Verify that Category 5 cable is used for 100 Mps connections and that the length of any cable

does not exceed 100 meters (328 feet).

•Check the network card and cable connections for defects.

•Replace the defective card or cable if necessary.