Extreme Networks GBX Manual de usuario

Extreme Networks, Inc.

3585 Monroe Street

Santa Clara, California 95051

(888) 257-3000

http://www.extremenetworks.com

SummitGbX™Installation

and User Guide

Published: September 1999

Part number: 120040-00 rev. A

reproduced in any form or by any means or used to make any derivative work (such as translation,

transformation, or adaptation) without permission from Extreme Networks, Inc.

Extreme Networks, Summit, SummitGbX, and the Extreme Networks logo are trademarks of Extreme

Networks.

All other brand and product names are registered trademarks or trademarks of their respective

holders.

Summit GbX Installation and User Guide 1

SummitGbX™Installation and

User Guide

This document describes the features and installation of the Summit™Gigabit Ethernet

Fiber-Optic Extender (GbX).

SUMMITGbX OVERVIEW

The SummitGbX Gigabit Ethernet Fiber Optic Extender greatly increases the maximum

single mode fiber interconnect distance between Gigabit Ethernet switches from the

standard IEEE 802.3z distance of 500 meters to 80 km (50 miles), or more. The

attenuation characteristics of the installed fiber plant determine the maximum distance

that can be achieved. Links beyond 100 km are possible using an optical amplifier

option.

The SummitGbX is fully compatible with the Gigabit Ethernet IEEE 802.3z standard for

fiber optic interfaces.

Network management and loopback control functions are provided by an RS-232c port.

The SummitGbX supports full duplex operation as defined in IEEE 802.3x. This results

in 2 Gbps of actual link bandwidth, and provides lower latency, due to simultaneous

transmit and receive operations.

Figure 1 shows how the SummitGbX Extender offers network planners an important,

and fundamentally different, way to configure Gigabit Ethernet network by giving users

interconnect distances up to 100 km. In most cases, the SummitGbX allows much

greater freedom in the use of Summit and BlackDiamond™switches, as distance

limitations cease to be a factor.

2Summit GbX Installation and User Guide

SummitGbX Overview

Figure 1: SummitGbX used in a typical configuration

MMF

SMF

SX Ports

SX Port

LDI Port

Building 1

Building 2

SX Port

GbX_cnx

Summit GbX Installation and User Guide 3

Summary of Features

SUMMARY OF FEATURES

The SummitGbX extends the distance of Gigabit Ethernet links on Summit and

BlackDiamond switches to 80 kilometers using single mode fiber. Depending on the

quality of fiber, distances of 100 kilometers, or more, can be achieved. The summary of

features is as follows:

•One full-duplex Gigabit Ethernet fiber optic interface and one full-duplex

long-distance fiber interface

•Full-duplex bandwidth operation with 2 Gbps throughput

•Highly reliable performance and a very low Bit Error Rate (BER) of 10-12

•Standard duplex SC optical connector interface to Summit switches

•Standard SC optical connector for long-distance fiber interface

•Graphical user interface for management, using an RS-232c port

—Loopback diagnostic control

—Signal

—Loss of synchronization

—Over-temperature warning

•Low profile, 1U (1.75 inches)

•Standard 19-inch rack mount

•Dual, redundant, load sharing power supplies

SUMMITGbX FRONT VIEW

Figure 2 shows the front panel view of the SummitGbX.

Figure 2: SummitGbX front panel

TX RX

CLASS 1 LASER

LDI OPTICAL PORT

Status

LEDs

LDI ports Gigabit

port

FLT

LDI

GBE

LDI OPTICAL PORT

TX RX POWER

TEMP

CLASS 1 LASER

GBE OPTICAL PORT

TX RX

CLASS 1 LASER

SYNC

LOSS LOOP

BACK

GbX_fr

4Summit GbX Installation and User Guide

SummitGbX Front View

PORTS

The SummitGbX has one 1000BASE-SX port for connecting the SummitGbX to a

Summit or BlackDiamond switch, and one single mode long-distance interface (LDI) for

connecting between two SummitGbX units. Each 1000BASE-SX and LDI port has one

optical transmitter interface (TX) and one optical receiver interface (RX).

LEDS

Table 1 describes the LED behavior on the SummitGbX.

MEDIA TYPES AND DISTANCES

Supported media types and distances are described in Table 2.

Table 1: SummitGbX LEDs

LED Color Indicates

RX FLT

(Receive Fault) Green

Yellow Signal received

No signal received

SYNC LOSS

(Synchronization Loss) Green

Yellow Receive clock detected

Receive clock not detected

LOOP BACK Green

Yellow In normal mode (no loopback)

Loopback mode

POWER Green Power on

TEMP Green

Yellow SummitGbX temperature normal

SummitGbX indicating an overheat condition

Table 2: Media Types and Distances

Media Type Standard Media Guaranteed Distance

850nm Multimode

Optics 1000BASE-SX 50/125um Multimode Fiber

(500/500 MHz–km)

62.5/125um Multimode Fiber

(160/500 MHz–km)

62.5/125um Multimode Fiber

(200/500 MHz–km)

550 Meters

220 Meters

275 Meters

Summit GbX Installation and User Guide 5

SummitGbX Front View

LONG DISTANCE INTERFACES

Table 3 describes the Long Distance Interface (LDI) specifications.

Note 1: The transmitter output power level for the SummitGbX is +1dBm. The maximum allowable

receiver input power level is -8dBm. Therefore, there is a minimum of 9dB loss required for the link

to operate error-free. This minimum required loss can be achieved using a fiber length of 40 km

(0.25 dB/km provides 10dB loss), or by adding 10dB of fixed optical attenuator at the receiver end.

1550nmSingle mode

Optics 10u Single mode Fiber 100 Kilometers

Table 3: LDI Specifications

Parameter Minimum Typical Maximum

LDI Optical Transceiver

Optical Output Power 0dBm 1dBm See Note 1

Optical ExtinctionRatio 7dB

Center Wavelength 1530nm 1550nm 1565nm

Optical Rise/Fall Time 0.5ns

LDI Optical Receiver

Optical Input Power Sensitivity -34dBm -32dBm

Optical Input Power Maximum -8dBm

Operating Wavelength 1200nm 1550nm 1600nm

Optical Return Loss 27dB

Table 2: Media Types and Distances (continued)

Media Type Standard Media Guaranteed Distance

6Summit GbX Installation and User Guide

SummitGbX Rear View

SUMMITGbX REAR VIEW

Figure 3 shows the rear panel view of the SummitGbX.

Figure 3: SummitGbX rear panel

POWER SOCKET

The SummitGbX automatically adjusts to the supply voltage. The power supply is

autoranging from 100 VAC to 240 VAC.

MANAGEMENT PORT

The console port (9-pin, D-type connector) is used to connect a terminal for local,

out-of-band management.

INSTALLING AND PREPARING THE SUMMITGbX FOR USE

The SummitGbX can be mounted in a rack, or placed free-standing on a tabletop.

PREPARING THE SUMMIT GbX FOR USE

To ensure safe operation of this equipment and personnel using this equipment,

the cautions and warnings in this manual must be followed. This equipment has

been manufactured and tested according to international safety standards. There

are no user-serviceable parts in the SummitGbX.

Console

port

GbX MGMT PORT

Model No. :

Part No. :

Serial No. :

Made in U.S.A.

This version per fax from Diana Miller, 24 April 1998

and phone call 28/4/98

10922

800024-00-A

XXXXX-XXXXX

R3-232C

THIS DEVICE COMPLIES WITH PART 15 OF THE FFC RULES.

OPERATION IS SUBJECT TO THE FOLLOWING TWO

CONDITIONS: (1)THIS DEVICE MAY NOT CAUSE HARMFUL

INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY

INTERFERENCE RECEIVED, INCLUDING INTERFERENCETHAT

MAY CAUSE UNDESIRED OPERATION. THIS PRODUCT CONFORMS

TO DHHS CFR21 SUBCHPT J.THIS DEVICE IS A CLASS 1 LASER.

3.16T AMP FUSE 3.16T AMP FUSE

GbX_rear

Summit GbX Installation and User Guide 7

Installing and Preparing the SummitGbX for Use

INITIAL INSPECTION

If the shipping container shows signs of damage, keep it, and all packing materials,

until the SummitGbX has been thoroughly tested and verified. Verify that all contents

are complete, according to the list below:

•SummitGbX in electro-static discharge (ESD) bag

•19-inch rack mount kit

•Summit GbX Installation and User Guide (this document)

•Power cords (2)

•Software diskette

If any contents are found missing, or if the SummitGbX is found to be damaged, contact

Extreme Networks immediately for assistance.

POWER REQUIREMENTS

The SummitGbX is designed to accept 100 to 240 VAC, 50 to 60 Hz main power. The

SummitGbX automatically senses and adjusts for the proper AC voltage level.

Failure to properly ground the SummitGbX can result in personal injury or

equipment damage. Connect the power cord only to a receptacle with a

protective safety ground. Do not defeat the earth grounding protection by using

an extension cord or other device that defeats the safety ground connection.

OPERATING ENVIRONMENT REQUIREMENTS

The SummitGbX is designed to operate in a 10 to 50 degree C ambient environment. Do

not restrict the air intake or exhaust vents.

Obstructing the air intake or exhaust of the SummitGbX may produce internal

temperatures leading to device failure. Do not block the intake or exhaust of the

unit. Do not operate the unit outside its specified temperature range.

8Summit GbX Installation and User Guide

Installing and Preparing the SummitGbX for Use

RACK MOUNTING

The SummitGbX is 1U (1.75 inches) high and fits in a standard 19-inch rack.

To rack mount the SummitGbX, follow these steps:

1Place the SummitGbX on a hard flat surface with the front facing toward you.

2Remove the existing screws from the left and right sides of the chassis and keep the

screws for Step 4.

3Locate one of the mounting brackets over the mounting holes on the left side of the

unit.

4Insert the four screws and fully tighten, using a suitable screwdriver.

5Repeat Steps 3 and 4 for the right side of the SummitGbX.

6Insert the SummitGbx into the 19-inch rack and secure the rack mount brackets with

suitable screws (not provided). Ensure that ventilation holes are not obstructed.

7Connect the cables.

FREE-STANDING

The SummitGbX is supplied with four self-adhesive rubber feet. Apply the rubber feet

to the underside of the device by sticking one at each corner of the switch.

CONNECTING TO OTHER DEVICES

To install the SummitGbX, follow these steps:

1Mount the SummitGbX in the equipment rack, or, if the SummitGbX will be located

on a table, place the rubber feet on the bottom of the SummitGbX.

2Connect the 1000BASE-SX port on the first SummitGbX to a Gigabit Ethernet port on

a Summit or BlackDiamond switch, using a multimode (MMF) cable.

3Connect the first SummitGbX to a second SummitGbX, using LDI ports and single

mode fiber (SMF) cables with SC simplex connectors.

4Connect the 1000BASE-SX port on the second SummitGbX to a Gigabit Ethernet port

on a second Summit or BlackDiamond switch, using a multimode fiber (MMF) cable.

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