GarrettCom 6K8 User Manual

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GarrettCom 6K8 User Manual

Magnum 6K8-Series

Industrial Field Switch

Hardware Installation

and

User Guide

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Magnum 6K8-Series Industrial Field Switch Installation & User Guide (04/07)

Magnum6K8-Series

Industrial Field Switch

Hardware

Installation and User Guide

Part #: 84-00160 (Rev. B)

Trademarks

Ethernet is a trademark of Xerox Corporation

NEBS is a trademark of Telcordia Technologies

UL is a registered trademark of Underwriters Laboratories

GarrettCom, Magnum and Personal Switch are trademarks and Personal Hub is a registered trademark of GarrettCom, Inc.

Important: The Magnum 6K8-Series Industrial Field Switch contains no user serviceable parts. Attempted service by unauthorized personnel shall render all warranties null and void. If problems are experienced with Magnum 6K8Series Switch products, consult Section 6, Troubleshooting, of this User Guide.

Copyright © 2006 GarrettCom, Inc. All rights reserved. No part of this publication may be reproduced without prior written permission from GarrettCom, Inc.

Printed in the United States of America.

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Magnum 6K8-Series Industrial Field Switch Installation & User Guide (04/07)

Contacting GarrettCom, Inc

Please use the mailing address, phone and fax numbers and email address listed below:

GarrettCom, Inc.

47823 Westinghouse Dr.

Fremont, CA 94539-7437

Phone (510) 438-9071

Fax (510) 438-9072

Website: http://www.GarrettCom.com

Email: support@garrettcom.com

Federal Communications Commission

Radio Frequency Interference Statement

Radio Frequency Interference Statement

This equipment generates, uses and can radiate frequency energy and if not installed and used properly, that is in strict accordance with the manufacturer's instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his/her own expense, will be required to take whatever measures may be required to correct the interference.

Canadian Emission

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil respecte toutes les exigences du Réglement sur le matériel du Canada. Cet appareil est Classe A..

RegulatoryUL60950 Voltage Range: 18-36VDC: 24vdc option 38-60VDC:60vdc option 100-150VDC:125vdc option 100-240Vac- AC option

Test Temp.: 40˚C

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Magnum 6K8-Series Industrial Field Switch Installation & User Guide (04/07)

Table of Contents ...........................................................................

Page

1.0

SPECIFICATIONS ...............................................................................

2

1.1

Technical Specifications ......................................................................

2

1.2

Ordering Information...........................................................................

5

2.0

Introduction............................................................................................

7

2.1

Inspecting the Package and Product ....................................................

7

2.2

Product Description - Magnum 6K8-Series (6K8) ..............................

8

2.2.1a

Magnum 6K8-Series, Industrial Field Switch..............................

9

2.2.2

Eight-port SFF fiber modules 100Mb fiber ..............................

11

2.2.3

Eight-Port Copper Module, 6K8-RJ45 ......................................

12

2.2.4

Six-Port “4 + 2”Combo Modules, fiber ST or SC ......................

13

2.2.5 New PoE (Power Pass-through), model P6KP8-RJ45 (MDIX) ................

14

2.2.6

Four-Port 10 MB and 100Mb mm Fiber ST Modules ..............

14

2.2.7

Gigabit (1000Mbps) port modules.............................................

15

2.2.7a

GBPM-2OTX (Two Gigabit port option) ..................................

16

2.2.8

Packet Prioritization, 802.1p QOS.............................................

17

2.2.9

Frame Buffering and Flow Control............................................

18

2.2.10

Managed Network Software (MNS-6K) for 6K8-Series ...........

18

2.3 Features and Benefits...............................................................................

19

2.4

Applications .......................................................................................

21

3.0

Installation............................................................................................

25

3.1

Locating Magnum 6K8-Series Switches............................................

26

3.2

Connecting Ethernet Media ...............................................................

26

3.2.1

Connecting Fiber Optic ST-type, “twist-lock”...........................

27

3.2.2

Connecting Fiber Optic SC-type, "Snap-In"..............................

27

3.2.3

Connecting Single-Mode Fiber Optic ........................................

27

3.2.4

Connecting Twisted Pair (RJ-45, CAT3, CAT5).......................

28

3.2.5

Connecting Twisted Pair (CAT5E or better) .............................

29

3.2.6

Connecting Gigabit Media Using GBICs ..................................

29

3.3

DIN-Rail Mounting............................................................................

30

3.3.1

Installing DIN-RAIL variable brackets on Magnum 6K8 .........

31

3.3.2

Mounting Dimensions for 6K8 with metal brackets ..................

33

3.4

Powering the Magnum 6K8-Series Industrial Field Switch ..............

34

3.5

Alarm Contacts for monitoring internal power, and Software Traps....

35

3.6

6K8-Series Port Module (6KPMV) Installation ................................

36

3.6.1 Preparation for Installing and Removing 6KPMVs from 6K8’s ......

36

3.6.2

Installing 6KPM Cards in the Magnum 6K8-Series ..................

38

3.6.3

Removing 6KPM Cards.............................................................

41

3.7

Connecting a Management Console Terminal to Magnum 6K8........

42

3.7.1RS-232 (DB-9) Console Com port (Serial port) pin assignments.43

4.0

OPERATION .......................................................................................

43

4.1

Switching Functionality .....................................................................

43

4.2

Dual LEDs Status on TOP and Front of the 6K8-Series unit .............

44

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Magnum 6K8-Series Industrial Field Switch Installation & User Guide

(04/07)

4.3

Auto-Cross (MDIX) and Auto-negotiation, for RJ-45 ports

.............. 45

4.4

Flow-control, IEEE 802.3x Standard.................................................

46

4.5Power Budget Calculations for 6K8-Series PM’s with Fiber Media. 47

5.0Introduction - Magnum 6K8 Industrial Field Switch Port Modules49

5.1

Inspecting the Package and Product ..................................................

49

5.2

6KPMV Module Description.............................................................

49

5.2.1a

6KP6-RJ10ST, multi-mode FX-ST “twist lock” Combo Module50

5.2.1b

6KP4-F10ST, 4@10Mb multi-mode FX-ST “twist lock” Module51

5.2.1c

6KP4-FLSTFX, 2@10Mb & FX-ST “twist lock” Module........

51

5.2.2. 6KP6-RJMSC multi-mode FX-SC “snap-in” Fiber connector ........

52

5.2.3

6KP6-RJSSC Ports single-mode FX-SC-type, “snap-in” ..........

53

5.2.46KP6-RJSSCL single-mode FX-SC-type, “snap-in” connector 53 5.2.4a 6KP6-RJ10ST multi-mode FL-ST-type, “twist-lock” connector54

5.2.56KP8-MTRJ, 8 @100Mb multi-mode FX, MTRJ Small-Form-factor54

5.2.5a

6KP6-MT10ST Multi-mode ST-Fiber port..................................

55

5.2.6

6KP8-45MTmulti-mode FX , MTRJ Small-Form-Factor..........

55

5.2.7

6KP8-MLC multi-mode LC connector Small-Form Factor.......

55

5.2.8

6KP8-45LC Combo multi-mode -LC small-form factor ..........

56

5.2.9

6KP8-RJ45 (Twisted Pair), 10/100Mb 8-Port ...........................

57

5.2.10

New PoE (Power Pass-through), model 10/100Mb 8-port .................

58

5.2.11

6KP8-45-2MTmulti-mode FX , MTRJ Small-Form-Factor ......

59

5.2.11a

6KP8-45-2LC single-mode FX , LC Small-Form-Factor ......

59

5.2.12

GBIC-SXSC Gigabit fiber (1000Mb) SC Connector.................

60

5.2.12a

GBIC-LXSC Gigabit fiber (1000Mb) SC Connector ............

60

5.2.13GBPM-2OTX (Two Gigabit option)…………………………….…59

5.2.14 6KM-BLNK...............................................................................

62

6.0 TROUBLESHOOTING ............................................................................

62

6.1

Before Calling for Assistance ............................................................

62

6.2

When Calling for Assistance .............................................................

63

6.3

Return Material Authorization (RMA) Procedure .............................

63

6.4

Shipping and Packaging Information.................................................

64

APPENDIX A: WARRANTY INFORMATION.........................................

65

APPENDIX B: Internal DC Power Supply Options.....................................

65

APPENDIX C: Internal DC Dual-Source Power Option.............................

68

Revisions

 

 

Rev B 05/07: Update to Agency Approvals

 

Rev A 04/07: Minor update as per UL

 

Rev A 08/06: Added POE modules and Dual Giga module info.

 

Rev A 03/06: Minor update

 

Rev A 10/05: Initial Release, Rev A

 

Rev A 09/05: Draft of Initial Release, Rev A

 

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Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

THE MAGNUM LINE

Industrial networking products

"Designed and Manufactured in the USA"

Overview

GARRETTCOM, INC. OFFERS THE PREMIUM-QUALITY MAGNUMLINE OF INDUSTRIAL CONECTIVITY PRODUCTS WITH INDUSTRY-STANDARD FUNCTIONALITY AND BUILT-IN FIBER CONFIGURABILITY. MAGNUM PRODUCTS ARE DESIGNED FOR USE IN DEMANDING INDUSTRIAL GRADE, CARRIER CLASS, POWER UTILITY AND OEM APPLICATIONS WHERE RELIABILITY IS A PRIMARY CONSIDERATION.

6K-SERIES MANAGED FIELD SWITCHES, GIGABIT, 100 AND 10 MBPS, FIBER AND COPPER PORTS, MIX-AND MATCH. FEATURES SFF FIBER AND DC POWER IN 1U UNITS.

DX-SERIES SERIAL DEVICE ROUTERS, ETHERNET AND SERIAL

4K-SERIES SWITCHES, 100 AND 10 MBPS, COPPER PORTS WITH OPTIONAL FIBER PORT, WITH AUTO-NEGOTIATING FULL SWITCHING PERFORMANCE.

QUAD-SERIES FIBER SWITCHES, 100 & 10MBPS, FIBER AND COPPER PORTS, MIXED-SPEED AND MIXED-MEDIA TYPES, FULL SWITCHING PERFORMANCE.

MP62 AND P62F “OUTDOOR” ETHERNET SWITCHES, FOR TEMPERATURE UNCONTROLLED LOCATIONS, 6 10/100 AND 2 100MB FIBER PORTS, CAN BE CONNECTED IN STRINGS

MIXED-MEDIA FIBER HUB, 16-PORT, 10/100 AUTO-SENSING

DUAL SPEED 8-PORT AND 16-PORT, 10/100 AUTO-SENSING HUBS

PERSONAL SWITCHES, 10/100MB

8 PORT DUAL-SPEED, AUTO-NEGOTIABLE WITH FIBER OPTION

PERSONAL HUBS, 100MB OR 10/100MB 8-PORT, WITH 2 SWITCHED PORTS (1 FIBER BUILT IN)

PERSONAL HUBS, 10MB SERIES 8-PORT + AUI, STACKABLE TO 5 HIGH, + OPTIONAL BNC OF FIBER PORT 8 OR 9-PORT AND 4 OR 5-PORT PERSONAL HUBS, W/ MAN. UP-LINK SW.

MEDIA CONVERTERS, 10MB AND 100MB SERIES, ALL MEDIA COMBINATIONS, INCL. FIBER

ST, SC, MM., SINGLE MODE

THE “X-LINE” OF CONFIGURABLE MIXED MEDIA PRODUCTS:

 

STACKABLE CONCENTRATORS, SNMP OPTIONAL, 13-PORTS

 

MINI-CONCENTRATORS, 7 PORTS, REPEATERS, 2-PORTS

 

REPEATER PORT MODULES (RPMS), 6 TYPES FOR ETHERNET MEDIA

 

COAX TRANSCEIVERS, 10MB SERIES

APR, 07

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Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

1.0SPECIFICATIONS

1.1Technical Specifications

Performance

Filtering / Forwarding Rate: Ethernet(10Mb):14,880 pps

Fast Ethernet(100Mb): 148,800 pps Gigabit Ethernet (1000Mb): 1, 488,000 pps

Switching Processing Type: Store and Forward with IEEE 802.3x fullduplex flow -control, non-blocking

Data Rate: 10Mbps, 100Mbps and 1000Mbps

Address Table Capacity: 4K nodes, self-learning with address aging Packet buffer size: 240KB for 10/100 and 120KB for 1000Mb

Latency: 5 µs + packet time (100 to 100Mbps)

15 µs + packet time (10 to 10 Mbps, and 10 to 100Mbps)

Network Standards and Compliance, hardware

Ethernet V1.0/V2.0 IEEE 802.3: 10BASE-T,

IEEE 802.3u: 100Base-TX, 100BASE-FX

IEEE 802.3z: 1000BASE-TX Ethernet (Auto-Negotiation)

IEEE 802.3ab: 1000BASE-TX Ethernet

IEEE 802.1p: Priority protocol

IEEE 802.1d: Spanning tree protocol

IEEE 802.1q: VLAN Tagging

IEEE 802.3x: Flow Control

IEEE802.1ad: Link aggregation

 

Maximum 10 Mbps Ethernet Segment Lengths

 

Unshielded twisted pair

- 100 m (328 ft)

Shielded twisted pair

- 150 m (492 ft)

10BASE-FL multi-mode fiber optic

- 2 km (6,562 ft)

10BASE-FL single-mode fiber optic

- 10 km (32,810 ft)

Maximum Standard Fast Ethernet Segment Lengths:

10BASE-T (CAT 3, 4, 5 UTP)

- 100 m (328 ft)

100BASE-TX (CAT 5 UTP)

- 100 m (328 ft)

Shielded twisted pair

- 150 m (492 ft)

100BASE-FX, half-duplex, multi-mode

- 412 m (1350 ft)

100BASE-FX, full duplex, multi-mode

- 2.0 km (6,562 ft)

100BASE-FX, half-duplex, single-mode

- 412 m (1350 ft)

100BASE-FX, full duplex, single-mode

- 20.0 km (66K8-Series ft)

100BASE-FX, full duplex, Long Reach

- 40.0 km (122K ft)

Maximum Standard Gigabit Ethernet Segment Lengths:

1000BASE-T (CAT5e or higher is recommended) - 100 m (328 ft) 1000BASE-SX, full-duplex, multi-mode (62.5µm cable) - 220m 1000BASE-SX, full-duplex, multi-mode (50µm cable) - 550m 1000BASE-LX, full duplex, single-mode (62.5µm cable) -5Km

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Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

Fiber Multi-mode connector types supported:

Fiber Port, ST-type (twist-lock): Fiber multi-mode, 10Mb 10BASE-FL Fiber Port, MTRJ-type (plug-in): SFF Fiber multi-mode100BASE-FX Fiber Port, SC-type (snap-in): Fiber optic multi-mode, 100BASE-FX Fiber Port, ST-type (twist-lock): Fiber optic m.-mode, 100BASE-FX

Fiber Port, 1000BASE-FX, GBIC modules

Fiber Single-mode connector types:

Fiber Port, SC-type: Fiber optic single-mode, 100BASE-FX

Fiber Port, LC-type Fiber optic SFF single-mode, 100BASE-FX Fiber Port, 1000BASE-FX, GBIC modules

LEDs: Per Port (one set at the port, one set on rear top) LK: Steady ON when media link is operational ACT: ON with receiver port activity

FDX/HDX: ON = Full-Duplex Mode OFF = Half-Duplex Mode

100/10: ON = 100Mbps speed OFF = 10 Mbps

Operating Environment

Ambient Temperature:

-40° to 140° F (-40° to 60°C) for UL60950 and Component Parts rating -60° to 205° F (-50° to 95°C) for IEC 60068 Type Test short-term rating

Storage Temperature: -60°to 210°F (-50°to 100°C) Ambient Relative Humidity: 5% to 95% (non-condensing) Altitude: -200 to 13,000 ft. (-60 to 4000m)

Conformal Coating (humidity protection) option: Request quote

Alarm Relay Contacts

One NC indicating internal power, one NC software controllable

Packaging

Enclosure: Rugged High strength sheet metal. Dimensions: 9.8 in. H x 5.90 in. W x 3.70 in. D

24.9 cm H x 15.0 cm W x 9.4 cm D

Cooling method: Convection, fully –enclosed elongated dual-cavity case used as heat-sink. designed for vertical mounting, no fans

Weight: 2.1 lbs. (0.95 kg)

Management Console connector

DB-9 for RS-232 “null-modem” cable (sometimes called an X-modem cable)

Power Supply (Internal)

AC Power Connector: IEC-type, male recessed at rear of chassis, Input Voltage: 100 to 240 VAC (auto-ranging)

Input Frequency: 47 to 63 Hz (auto-ranging) Power Consumption:

25 watts typical (for a fully loaded fiber model) 15 watts typical (for a 8-port copper only model)

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Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

DC Power Supply (Options)

-48VDC Power Input Voltage: -36 to -70 VDC 24VDC Power Input Voltage: 18 to 36VDC 125VDC Power Input Voltage: 88 to 300VDC 5VDC Power Input Voltage: (+) or (-) 5% Std. Terminal Block: “ -, GND, + ”

Power Consumption: same as for AC models, see above

For DC internal power supplies at –48VDC, 24VDC and 125VDC, including Dual Source options (for continuity of operation when either of the DC input sources are interrupted), see Appendices B and C.

Per-port MDI or MDIX on RJ-45

The copper daughter board has MDI-MDIX Auto-crossover on all the RJ-45 ports., and eliminate the use of cross-over cable between the devices. Also port-specific user settings (such as FDX or HDX, copper 10/100 speed) can be fixed using software commands.

Mountings:

Vertical mounting only Suitable for wall or DIN-Rail mounting

Agency Approvals Magnum 6K8

UL listed (UL60950), cU, CE Emissions meet FCC Part 15 Class A

IEEE 1613 Class 2 Environmental Standard for Electric Power Substations See also Note for Power Substations in Sections 3.2.4, 3.7.1 and 5.2.9 IEC 61850 EMC and Operating Conditions, class C for Power Substations

NEMA TS-2 and TEES for AC-powered and PoE-powered traffic control equipment

Note: These products are tested and approved under IEC61850 for use in Class C sheltered locations where neither temperature nor humidity are controlled. The equipment needs to be protected against solar radiation, rainfall, other precipitations and wind. UL has not approved these products for Annex-T outdoor use.

Warranty: Three years, per UL 60950-temperature rating

Made in USA

Email sales@GarrettCom.com for details.

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4

Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

1.2Ordering Information

Magnum Industrial Field Switch (8 ports max)

MODEL DESCRIPTION

Magnum 6K8 -Managed Industrial Field Switch, base unit for vertical mounting. Worldwide AC power. May be configured with a selection of 10/100/1000 fiber and copper port connector types, 8 total ports max. for 10/100Mbps or 2 ports maxm for Gigabit ports. Two metal brackets for vertical wall or panel mounting. Wire speed filtering and forwarding across all ports, 802.3x flow control, 802.1p priority packet processing, self-learning 4K-node address table, large 240KB packet buffers for 10/100 and 120KB for 1000Mb. For licensed managed networks software (MNS-6K and S-ring), See separate data sheets.

Magnum 6K8 -24VDC: Same as 6K8 except the power input is 24VDC

Magnum 6K8 -5VDC: Same as 6K8 except the power input is regulated 5VDC & fused Magnum 6K8-48VDC: Same as 6K8 except the power input is –48VDC

Magnum 6K8-125VDC: Same as 6K8 except the power input is 125VDC

Configuration Options:

Each Magnum 6K8 base unit has one port module slot which can be equipped with one of the following single or multi-mode fiber, copper, 1000, 100 or 10Mbps modules.

Magnum 6K8 Port Modules

6KP8V-RJ45 TP Module, with 8x10/100Mbps auto-negotiating RJ-45 ports 6KP8V-MTRJ SFF Fiber modules, with 8x100Mb mm FX MT-RJ connectors 6KP8V-MLC SFF Fiber modules, with 8x100Mbps mm FX LC connectors 6KP8V-SLC SFF Fiber modules, with 8x100Mbps single-mode FX LC connectors 6KP4V-FXSC “2+2” 100Mb Fiber module, with 4x100Mb 2km FX SC connectors 6KP4V-FXST “2+2” 100Mb Fiber module, with 4x100Mb 2km FX ST connectors 6KP4V-F10ST “2+2” 10Mb Fiber module, with 4x10Mb 2km FL ST connectors 6KP4V-FLSTFX “2+2” ST Fiber module, with 2x100Mb & 2x10Mb ports, 2km 6KP8V-45-2MT “6+2” module, with 6xRJ-45 ports and 2x100Mb 2km FX MTRJ 6KP8V-45-2SLC “6+2” module, with 6xRJ-45 ports and 2x100Mb s.m 15km FX LC 6KP8V-45MT “4+4” module, with 4xRJ-45 ports and 4x2km mm FX MTRJ 6KP8V-45MLC “4+4” module, with 4xRJ-45 ports and 4x2km mm LC connectors 6KP8V-45SLC “4+4” module, with 4xRJ-45 ports and 4x2km single mode LC 6KP6V-RJMST “4+2” module, with 4xRJ-45 ports and 2x2km mm FX SC 6KP6V-RJMSC “4+2” module, with 4xRJ-45 ports and 2x2km mm FX ST 6KP6V-RJSSC “4+2” module, with 4xRJ-45 ports and 2x20km single.mode FX SC 6KP6V-RJSSCL “4+2” module, with 4xRJ-45 ports and 2x40km single mode FX SC 6KP6V-MT10ST “4+2” module, with 4xMTRJports and 2x10Mb 2km FL ST 6KP6V-RJ10ST “4+2” module, with 4xRJ-45 ports and 2x10Mb 2km FL ST

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Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

6KP5V-G4RJ “G+4” modules, with one GBIC receptacle for one user selectable GBIC transceiver (see below) with 4 fixed 10/100 RJ-45 ports.

6KP3V-G2SC “G+2” module, with one GBIC receptacle for one user selectable GBIC transceiver (see below) and 2 100Mb 2km FX SC fiber ports.

GBPMV-2OTX Two-port Gigabit module for 6K8-Series Switches, with two GBIC receptacles for user selectable GBIC transceivers (see below).

GBPMV-COTX One slot Gigabit module for 6K8-Series Switches, with one GBIC receptacle for a user selectable GBIC transceiver module (see below).

GBIC(1000Mb) Transceiver options for Mangum 6K8-Series

GBIC-SXSC One 1000BASE-SX port with 850nm multi mode SC fiber connector

GBIC-LXSC10 One 1000BASELX/LH port with 1310nm single mode SC (10km) fiber connector

GBIC-LXSC25 One 1000BASELX/LH port with 1310nm single mode SC (25km) fiber connector

GBIC-ZXSC40 One 1000BASE-ZX port with 1550nm, single mode SC (40km) fiber connector

GBIC-ZXSC70 One 1000BASE-ZX port with 1550nm, single mode SC (70km) fiber connector

GBIC-TP One 802.3ab 1000BASE-T port, RJ-45 connector

CONSOLE CBL Industry standard serial cable, DB-9 connectors for RS-232 “ nullmodem “ connection (sometimes called an X-modem cable), used to connect a PC or a character terminal to the Management port.

CONSOLE USB Industry standard serial cable, DB-9 connectors for RS-232 “ nullmodem “ connection (sometimes called an X-modem cable) to connect to a managed switch, and a USB port to connect to a PC

DIN-RAIL-VRM DIN-Rail holder for a secure vertical mount of a 6K8-Series unit, with screws to attach to metal mounting brackets of the 6K8 case.

GarrettCom, Inc. reserves the right to change specifications, performance characteristics and/or model offerings without notice.

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Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

2.0Introduction

2.1Inspecting the Package and Product

Examine the shipping container for obvious damage prior to installing this

product; notify the carrier of any damage that you believe occurred during shipment or delivery. Inspect the contents of this package for any signs of damage and ensure that the items listed below are included.

This package should contain:

1Magnum 6K8-Series Industrial Field Switch, base unit (configured with user-selected port module options installed)

1 AC Power Cord (U.S. and other 115 VAC only) if AC version

1 Set of two metal vertical mounting brackets, with screws to the case 1 Installation and User Guide (this manual)

1 Product Registration Card

Remove the items from the shipping container. Be sure to keep the shipping container should you need to re-ship the unit at a later date. To validate the product warranty, please complete and return the enclosed Product Registration Card to GarrettCom, Inc. as soon as possible.

In the event there are items missing or damaged, contact the party from whom you purchased the product. If the unit needs to be returned, please use the original shipping container if possible. Refer to Section 6, Troubleshooting, for specific return procedures.

NOTE: This Hardware usermanual only contains the hardware related information about the Magnum 6K8 and provides help for Network installation, wiring, and other hardware features. Refer to our Software user Manual for management software features and configurations (e.g. VLANS, RSTP, SNMP, RADIUS, TACACS etc.) using this URL- www.garrettcom.com/techsupport/software/userguides/6kseries_softugrel3.pdf

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Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

2.2Product Description - Magnum 6K8-Series (6K8)

The Magnum 6K8-Series, Industrial Field Switch is the smallest member of

the Managed 6K-Switch family. It is equipped with one module slot configurable to 8- ports. It is specially designed to meet

industrial, power substation, and outdoor Ethernet specifications while fulfilling the needs of hardened applications. 6K8-Series managed field switches provide modularity of fiber and copper ports. They come with a combination of 10Mb, 100Mb and 1000Mb speed ports with comprehensive management software

in a compact industrial-grade package. The combination of multiple possible configurations, multiple power options, a hardened enclosure, and MNS-6K management software makes the Magnum 6K8 a very powerful, effective and reliable managed Field Switch providing a secure solution for many needs.

Setting a new standard for Industrial and Carrier Class applications, heavy duty Ethernet Switch requirements are readily accommodated with an extended temperature rating of -40˚C to 60˚C calculated by the UL Component Parts method, or -50˚C to 95˚C by the IEC 60068 calculated by the Type Test method. With various Power Supply options, such as all popular DC power input types, worldwide AC power and DIN-Rail mounting; the hardened Magnum 6K8-Series is a “multi-purpose” Industrial Ethernet Switch.

The extremely versatile options of various port modules offer all fiber media possibilities including small form factor (all connector types, multiand single-mode) and 10/100 MB auto-negotiating RJ-45 ports. Standard GBIC ports can be configured for a variety of Gigabit cabling types and distances. For details about module configurations please go to http://www.garrettcom.com/techsupport/insertion_guides/6k8cg.pdf

Advanced thermal design techniques (patent pending) transform the tough metal case into a heat sink as well as a shield for reducing electrical noise and providing physical protection. The unique design features an elongated dual-cavity shape for

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Magnum 6K8-Series Industrial Field Switch Installation and User Guide (04/07)

optimal cooling of internal components without any ventilation openings. This sealedcase design enables the unit to operate in temperature un-controlled environments, achieve high EMI noise immunity and provide an un-matched IP53 physical protection rating against dust, dirt, insects, and liquid spills. http://www.garrettcom.com/Pictorial/6k8_pictorial.pdf

High performance features include non-blocking speed on all ports and 802.1p QoS Traffic Prioritization. Magnum 6K8-Series switches are “plug-and-play” ready for use as backbone switches where a mix of bursty data traffic and priority streaming traffic for VoIP and audio/video “Triple Play” applications are present.

Magnum 6K8-Series Fiber Switches are provided with LAN management software including SNMP, Tag and Port-based VLANs, IGMP Snooping and Port Security with control via secure Web and command line interface (CLI). Loaded with secure features likeRadius server (802.1x), TACACS+, SNMPV3 and Port Security allow this Industrial Field Switch to qualify for a sub-standard managed switch to meet the Industrial expectation. For high availability, Redundant LANs using ring/mesh topologies, Spanning Tree Protocol, Rapid Spanning Tree Protocol, Link-Loss-Learn and S-Ring (ring only) are available. See the Managed Networks Software (MNS-6K) and S- Ring datasheets for additional details on the comprehensive set of software programs and options.

Magnum 6K8-Series, Industrial Field Switches have heavy-duty metal cases and auto-ranging power supplies for operation with standard AC power worldwide. Internal DC power supplies are optional. All DC power input types (24V, 48V, 125V) are supported, and dual source input is optional.

Alarm Relay contacts provided on each Magnum 6K8-Series Switch are monitored via the hardware and software providing a loss of power signal and userdefined software events through traps. See Section 3.5 for details.

The wide selections of port modules are key to the flexibility and adaptability.

2.2.1a Magnum 6K8-Series, Industrial Field Switch

The Magnum 6K8-Series is primarily designed for use in vertical mount applications. Equipped with multi-media fiber/copper solutions, multiple speed 10/100/1000Mb support, rich MNS-6K management features, hardware and software alarms and

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9

Magnum 6K8-Series Industrial Field Switch Installation and User Guide (04/07)

convection cooling (no fans), the Magnum 6K8 easily qualifies for use in transportation and traffic control systems, power utilities and industrial factory-floors. For the fast growing demands of video surveillance systems with segments requiring Gigabit backbone interconnections, the Magnum 6K8 managed switches are easy to install and operate with Magnum 6K management firmware.

The advanced generation of industrial applications requires advanced managed network software, operation at extended

temperatures, fiber ports modularity, support for self-healing ring structures, redundancy, security and gigabit backbone configurability. The Magnum 6K8 has all of these, in a very tough and robust metal case with a wide choice of popular DC options or industry standard AC internal input.

The plug-n-play Magnum 6K8 Industrial Field switches, should be mounted vertically using the vertical mounting brackets which come

along with the unit or by using the DIN-RAIL-KIT (optional) for Din rail mounting.

Loaded with versatile and secured management software (MNS-6K), the 6K8 switch can be easily managed and monitored via SNMP or secured Web. Supporting dual Gigabit ports (copper or fiber) in one slot defines the Magnum 6K8 Field switches

role as an effective Managed Gigabit media converter Switch that meets any secured Gigabit media requirements.

Dual LEDs on the front and side help the vertically mounted 6K8 to be monitored easily. The modular designed Magnum 6K8 Industrial Field switch can support a maximum of two Gigabit modules (fiber or copper) to meet any demand of bandwidth-required applications. In an on-going demand of diversified designed Ethernet applications, the Magnum 6K8 is a fine solution to meet and satisfy any requirements through its rich modular structure. The Relay contact for external “ALARM” is another additional

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Magnum 6K8-Series Industrial Field Switch Installation and User Guide (04/07)

feature which allows the Magnum 6K8 to monitor the internal power failure and controlled via hardware or software trap controls. The options for universal AC and 24V/-48V/125VDC-power options offer a widely accepted managed switch with high reliability.

2.2.2 Eight-port SFF fiber modules (6K8-MTRJ, 6K8-MLC), 100Mb fiber

1

3

5

7

ACT

 

 

 

ACT

F/H

 

 

 

 

F/H

ACT

 

 

 

 

ACT

F/H

LK

LK

LK

LK

F/H

ACT

 

 

 

 

ACT

F/H

 

 

 

 

F/H

ACT

 

 

 

 

ACT

LK 2

4 LK

6LK

8LK

 

F/H

F/H

 

 

 

 

 

 

 

 

 

Fig.2.2.2:

SFF Fiber Port Modules,

6K8-MTRJ (to the left) and

6K8-MLC or -SLC (below)

In an eight-port SFF fiber port module, all of the fiber ports are of the same speed (100Mb), mode, and connector type. Models available with Small Form Factor (SFF) are multi-mode MT-RJ or LC-type connectors, and single-mode LC-type connectors.

The 100Mb fiber eight-port

 

 

1

3

 

 

5

 

 

7

 

 

 

 

modules for the Magnum 6K8-Series

 

AC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACT

 

F/H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/H

normally are set (factory default) to

 

AC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/H

 

F/H

LK

 

4

LK

6

LK

8

L

 

operate in full-duplex mode for best

 

 

2

 

 

 

 

 

 

 

 

 

AC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/H

fiber distance and performance. Using

 

AC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACT

 

F/H

LK

 

 

 

 

LK

6

 

LK

8

 

L

F/H

the 6K-MNS software, the user may

 

2

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

select fullor half-duplex mode per-port through set-up of the software (See Magnum

 

6K-MNS Software Manual) for the flexibility to adapt to any FDX or HDX type of Fast Ethernet devices).

There are three LED’s per fiber port. The Link (LK) LED indicates “ready for operation” on that port when lit, the F/H LED indicates operation in full-duplex mode when ON (half-duplex when OFF), and the blinking ACT LED indicates receiving Activity on the port. A fiber cable must be connected into a SFF port and the Link (LK) indicator for that port must be ON (indicating there is a

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11

Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

powered-up device at the other end of the cable) in order for a LK LED to provide valid indications of operating conditions on that port.

2.2.3Eight-Port Copper Module, 6K8-RJ45

The 6K8-Series’s 8-port Copper port module, model 6K8-RJ45, provides eight 10/100Mb switched RJ-45 ports. The 10/100Mb switched ports normally (as a default setting) are independently N-way auto-negotiating, and auto-crossover (MDIX) for operation at 10 or 100Mb speed in fullor half-duplex mode, i.e., each independently selects a mode and speed to match the device at the other end of the twisted pair cable.

(See Section 4.3 for auto-negotiation and MDIX details). The auto-crossover feature will automatically determine the other side of connection to make the connection, and eliminate the need of crossover cable.

On the model 6K8-RJ45 module, there are four LEDs for each port, two in the connector and two separate. The LK (Link) LED indicates, “ready for operation” on that port when lit. The blinking ACT (Activity) LED indicates receiving Activity on that port

when lit. The 10/100 LED

 

 

1

 

 

3

 

5

 

 

 

7

 

 

 

 

indicates operation at 100Mb

10/100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

speed when ON and at 10 MB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/ H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

speed when OFF (when auto-

2

 

 

4

 

6

 

 

8

10/100

 

 

 

 

 

 

 

 

LK

negotiation is not disabled).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The FDX/HDX LED is ON to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

indicate full-duplex operation

and OFF to indicate half-duplex mode. A twisted pair cable must be connected into an RJ-45 port and the Link (LK) indicator for that port must be ON (indicating there is a powered-up device at the other end of the cable) in order for a LK LED to provide valid indications of operating conditions on that port.

Using the 6K8-Series (MNS-6K) management software, the user may disable auto-negotiation and fix the desired operation of each RJ-45 port. User may select 10Mb or 100Mb speed and fullor half-duplex mode per-port as per user requirement. (See Magnum MNS-6K Software Manual for details info.).

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Magnum 6K8-Series Industrial Field Switch

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2.2.4Six-Port “4 + 2”Combo Modules, 4@ 10/100 RJ-45 and 2@100Mb

fiber

4@RJ-45 + 2@ 100Mb

 

1

3

5

 

7

 

 

1

3

5

 

7

 

 

 

 

10/100

 

 

 

 

 

LK

10/100

 

 

 

 

 

LK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/H

 

 

 

 

 

ACT

F/H

 

 

 

 

 

ACT

 

 

 

 

 

ACT

 

 

ACT

 

 

 

 

 

ACT

 

 

 

 

 

 

 

 

ACT

 

 

 

 

 

F/H

 

 

F/H

 

 

 

F/H

 

 

F/H

 

 

 

 

 

 

 

 

 

 

 

 

 

2

TX

LK RX

6

TX

LK

RX

2

TX

LK RX

6

TX

LK

RX

ST or SC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The combo six-port modules are combinations of copper and fiber media, available as four 10/100 switched RJ-45 copper ports and two 100Mb switched multi-mode fiber in either ST, SC, single mode SC or Long Reach SC ports. For port numbering, ports 1,3,5,7 are copper, ports 2 and 6 are fiber, and ports 4 and 8 are not present.

The four RJ-45 ports operate just like the 8-port copper module with auto cross (MDIX) features to eliminate the use of crossover cables. The two fiber ports operate at 100Mbps full duplex (default). User mode control per port through the MNS software is also the same.

On Magnum “4+2” Combo modules, there are four LED’s for each RJ-45 port, which indicate status as described for the 6K8-RJ45 in Section 2.2.3 above. The fiber port LEDs indicate status the same way as described for the SFF fiber modules in Section 2.2.2 above. Color-coding on the panel of the module shows which LEDs belong to which port.

 

1

 

3

5

7

 

10/100

 

 

 

 

 

LK

F/H

 

 

 

 

 

ACT

ACT

 

 

ACT

 

 

F/H

 

 

F/H

 

 

 

2

TX

LK RX

6

TX

LK

RX

The Magnum Combo sixport modules are also available with 4@ MTRJ 100Mb mm SFF fiber and 2@10Mb fiber mm ST ports, or 4@ RJ45 10/100 copper and 2@10Mb fiber mm ST ports. The

4@ RJ-45 + 2@ 10 Mb ST operation of the SFF fiber and the RJ-45 half of the module is as described for those port types above. For detailed information about 10Mb mm ST fiber half of the module, see Section 2.2.5.

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Magnum 6K8-Series Industrial Field Switch

 

 

 

Installation and User Guide (04/07)

 

 

2.2.5 New PoE (Power Pass-through), model P6KP8-RJ45 (MDIX), 10/100Mb 8-

 

 

port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The PoE (Power-pass-through) RJ-45 ports act similar to regular RJ-45 ports,

 

 

 

 

 

6KP8-45RJ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

except they have the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

capability of providing

8 Port@ 10/100Mb Copper ports

 

 

 

 

 

 

 

 

 

 

 

 

 

 

power on each port to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

power up the PD devices,

 

 

 

1

3

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

10/10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LK/AC

 

 

 

 

 

 

per the IEEE802.3af PoE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/ H

2

4

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

standard. The Power Pass-

 

 

10/10

 

 

 

 

 

 

 

 

 

 

 

 

LK/AC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

3

through PoE modules are

 

 

F/H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POE

1

LK/ACT

2

 

10/10

 

 

 

 

 

 

 

 

 

 

totally dependent upon the

 

LINK

 

 

 

 

 

 

 

 

 

 

 

powerful -48VDC input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

PoE

 

 

 

4

 

 

FULL/HALF

 

 

 

 

 

 

 

power supply to support

more RJ-45 (10/100) ports. Each port requires at least 15watts to power up the PoE PD devices. Maxm. one PoE modules can be configured in the A or B slot of any 6K16s with -48vdc power input. The PoE modules are also available to mix –n-match with fiber modules. Please check the ordering information Sec.1.2 for all the various P6K PoE module options.

The LEDs on 6KP8-RJ45- PoE modules are slightly different compared to regular (non-PoE) RJ-45 modules as shown in Fig 2. When the PoE port is in use, the PoE LED is ON when connected properly to an 803.af compliant PD device on that port. When non-PoE devices are connected, the PoE LED is OFF. PoE does not affect operation of Ethernet data traffic.

LINK and ACTIVITY LEDS are combined on the PoE modules into one LED that is marked as LINK/ACT, as shown in the diagram.

2.2.6Four-Port 10 MB and 100Mb mm Fiber ST Modules

ACT

 

 

ACT

 

 

 

F/H

 

 

F/H

 

 

 

1

TX

LK RX

5

TX

LK RX

ACT

 

 

ACT

 

 

 

F/H

 

 

F/H

T

LK

R

2

TX

LK RX

6

The 4-port @10Mb ST fiber modules behave the same as the 4@100Mb ST fiber modules except for the 10Mb speed. For port numbering, ports 1, 2, 5, 6 are present, ports 3, 4. 7, 8 are not present. There is also a similar 100Mb fiber SC module.

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Magnum 6K8-Series Industrial Field Switch Installation and User Guide (04/07)

The default setup on the 10Mb fiber module is half-duplex, which allows the Magnum 6K8-Series Switch to connect to any 10Mb hub or media converter or almost any other device with a 10Mb fiber Ethernet port. The default setting of the 100Mb fiber module is full duplex. User mode-control per port through the MNS “port settings” software is the same as the other 6K8-Series modules.

The fiber ports support fiber-cabling distances according to the 10BASE-FL and 100BASE-FX standards, i.e., 2km distance for multi-mode fiber. (Single-mode for up to greater distance may be available as a special order, request quote).

2.2.7Gigabit (1000Mbps) port modules

The Magnum 6K8-Series offers a wide range of optional Gigabit modules and

one or two Gigabit ports can be configured in one modular slot. The Gigabit modules are the two ports GBPMV-2OTX, the 6KP5V-G4RJ (single Gigabit+4 10/100 RJ-45 ports) or the 6KP3V-G2SC (single Gigabit+2 100Mb fiber ports) as shown below in the figure.

 

 

 

 

 

 

ACT

 

 

 

 

ACT

 

 

 

 

 

F/

 

 

 

 

F/

 

 

 

 

 

TX

LK RX

3

5

7

TX

LK RX

 

 

 

1

 

 

 

 

10/100

 

 

 

L

ACT

 

 

ACT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F/

 

 

F/

 

 

F/

 

 

 

ACT

TX

L

RX

TX

LK

RX

 

 

 

 

 

 

 

 

1@ 1000Mb Fiber SC + 2@ 100Mb SC

1@ 1000Mb Fiber SC + 4@10/ 100Mb

The 6K82 -Series Modules provide6 a GBIC opening for insertion of industry-standard GBICs to provide Gigabit media flexibility. GBIC models are available for both multimode (550m) and single-mode (10, 25, 40, 70) km fiber options. Gigabit copper is also available with new models appearing often.

The 1000Mb Gigabit fiber-port modules on the Magnum 6K8-Series are normally set (factory default) to operate at AUTO mode for best fiber distance and performance. The 1000Mbps SC fiber-optic module on the Gigabit -SX and Gigabit-LX transceivers are compatible with the IEEE 802.3z Gigabit standards.

There are two LEDs mounted on each Gigabit port module. The Gigabit fiber port is by default configured to AUTO mode, and can be fixed at 1000Mbps speed fullduplex mode at any time. The Gigabit fiber port has LEDs that indicate LK (Link status) and ACT (receiving activity) on that port when lit.

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15

Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

NOTE: For detail information about the various port module 6KPMV options being used for Magnum 6K8, please check section5.2, 6KPM Module Description.

2.2.7a GBPM-2OTX (Two Gigabit port option)

The Magnum 6K16-Series offered a wide selection of Gigabit speed with multiple choice of copper or Fiber or mix for the modular slot via GBPM-20TX module. While up to two Gigabit modules (maxm.) can be configured in the modular slot for GBPM-2OTX. The Dual Gigabit port option for the modular slot

come in couple of different configuration to provide a wide option of choice of various Gigabit transceivers covering a long range of distance. The GBPM-2OTX also meets the requirement for those applications where a managed Gigabit media converter is required. The two Gigabit slot can be filled with copper/Fiber or mix as per the application.

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16

Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

Model #

GBIC-SXSC

GBIC-LXSC10

GBIC-LXSC25

GBIC-TP

GBIC-ZXSC40

GBIC-ZXSC70

GBIC Description

One 1000BASE-SX port with multi-mode SC fiber connector

One 1000BASE-LX/LH port 1310nm singlemode SC 10Km

One 1000BASE-LX/LH port 1310nm singlemode SC 25Km

One IEEE 802.3ab TP port, RJ-45 connector

One 1000BASE-ZX port 1550nm singlemode SC 40Km

One 1000BASE-ZX port 1550nm singlemode SC 70Km

The Gigabit ports are set by factory as AUTO by default but can be configured as per the convenience using the MNS-6K management firmware.

2.2.8Packet Prioritization, 802.1p QOS

Quality of Service means providing consistent predictable data delivery to

users from datagram paths that go all across a network. As a LAN device, the Magnum 6K8-Series can do its part to prevent any QOS degradation while it is handling Ethernet traffic through its ports and buffers.

The Magnum 6K8-Series switching hardware supports the IEEE 802.1p standard and fulfills its role in support of QOS, giving packet processing priority-to- priority tagged packets according to the 802.1p standard. In addition to hardware support for QOS, the MNS software (Rel3) supports two priority queues that can be shared across the eight levels of defined packet priorities for application-specific priority control by the user through software configuration settings.

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17

Magnum 6K8-Series Industrial Field Switch

Installation and User Guide (04/07)

2.2.9Frame Buffering and Flow Control

Magnum 6K8-Series’s are store-and-forward switches. Each frame (or packet) is loaded into the Switch’s memory and inspected before forwarding can occur. This technique ensures that all forwarded frames are of a valid length and have the correct CRC, i.e., are good packets. This eliminates the propagation of bad packets, enabling all of the available bandwidth to be used for valid information.

While other switching technologies (such as "cut-through" or "express") impose minimal frame latency, they will also permit bad frames to propagate out to the Ethernet segments connected. The "cut-through" technique permits collision fragment frames (which are a result of late collisions) to be forwarded which add to the network traffic. Since there is no way to filter frames with a bad CRC (the entire frame must be present in order for CRC to be calculated), the result of indiscriminate cutthrough forwarding is greater traffic congestion, especially at peak activity. Since collisions and bad packets are more likely when traffic is heavy, the result of store-and- forward operation is that more bandwidth is available for good packets when the traffic load is greatest.

When the Magnum 6K8-Series Switch detects that its free buffer queue space is low, the Switch sends industry standard (full-duplex only) PAUSE packets out to the devices sending packets to cause “flow control”. This tells the sending devices to temporarily stop sending traffic, which allows a traffic catch-up to occur without dropping packets. Then, normal packet buffering and processing resumes. This flowcontrol sequence occurs in a fraction of a second and is transparent to an observer. Another feature implemented in Magnum 6K8-Series Switches is a collision-based flowcontrol mechanism (when operating at half-duplex only). When the Switch detects that its free buffer queue space is low, the Switch prevents more frames from entering by forcing a collision signal on all receiving half-duplex ports in order to stop incoming traffic. The flow control option is user configurable (enable/disable) through the setport command of MSN-6K software as per the requirement of a network.

2.2.10Managed Network Software (MNS-6K) for Magnum 6K8-Series

Magnum 6K8-Series comes with licensed MNS-6K Firmware (Rel 3.2), which

allows the configuration of the Magnum 6Ks as a Managed Switch and also allows other

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