GarrettCom Magnum 6K32T user manual C4.0 Features and Benefits of the DUAL-SOURCE Design

Page 65
GND
B-
B+
A-
A+
CHASSIS
GND
+
- FUSE
HUB
SUPPLY

Magnum 6K32 & 6K32T Managed Switch

Installation and User Guide (12/05)

GND:

Terminal for “earth” or ground wire connection to the hub chassis

Input:

Two separate sources, each at 20 - 36 VDC

Power Supply (Internal, 125VDC Dual-Source, model # Dual-Src-24V)

DC Power Connector: First Source: “A+”, “A-“, 2nd Source “B-“, “B+”

GND:

Terminal for “earth” or ground wire connection to the hub chassis

Input:

Two separate sources, each at 88 - 150 VDC

With the exception of the dual DC input power connections and the power supply, all specifications and configuration options for the Magnum 6K32T -48VDC, 24VDC and 125VDC models with this Dual-Source option are identical to those listed in the Magnum 6K32T Fiber Switches Installation and User Guide, including Appendix B “Internal DC Power Supply Option”

C2.0 MAGNUM 6K32T & 6K32, with -48VDC, 24VDC and 125VDC Dual- Source option

The 6K32T & 6K32-Switch models with the internal -48VDC, 24VDC and 125VDC Dual-Source power supply are designed for installations where a battery plant is the power source, and where two separate power sources are utilized in order to increase operational uptime and to simplify maintenance.

The functionality of the Magnum 6K32T Switch -48VDC, 24VDC and 125VDC Dual-Source Option units is identical to the standard AC-powered models. Refer to the main sections of this Installation and User Guide for a detailed description of the Magnum 6K32T Switches.

C3.0 DUAL-SOURCE OPTION, THEORY OF OPERATION The Dual-Source DC power

option is designed using diodes inside of the chassis on each DC power input line. A diode is placed in each of the four input lines (behind the four

external power connection terminals) so that power from an external source

can only flow into the unit. This allows the unit to operate whenever DC power is correctly applied to either or both of the two inputs

C4.0 FEATURES AND BENEFITS OF THE DUAL-SOURCE DESIGN

a)The Switch unit can receive power from either input, “A” or “B”. The hub will normally draw its power from the DC source with the highest voltage at a given time.

b)The Switch unit will not allow power to flow from a higher voltage input to a lower voltage input, i.e. the two DC power sources are not mixed together by the hub.

c)When one correct DC input is present, the Switch will receive power if the other DC input is absent, or even if it is connected with reverse polarity or shorted or grounded.

d)Reverse polarity connections, if they should accidentally occur on either input, will not damage the Switch or power supply internally (nor will it blow the fuse in the internal power supply) because of the blocking action of the diodes. This is true even if one input connection is

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Contents Managed Switch Trademarks Canadian Emission Contacting GarrettCom, IncIntroduction Table of ContentsMagnum 6K32T Managed Switch Port Modules Personal Hubs, 10Mb series Personal Switches, 10/100MbTechnical Specifications Management Console connector Fiber connector types supportedPower Supply Internal LEDs Per PortAgency Approvals Relay Alarm Contact OptionalPer-port MDI or Mdix on RJ-45 Ordering Information Configuration OptionsMagnum 6K32T Port Modules Gigabit Transceiver optionsWww . GarrettCom . com Introduction Inspecting the Package and Product Product Description Magnum 6K32T Managed Switch 1a Magnum 6K32T Chassis 1b New Magnum 6K32T Chassis 100Mb fiber eight Port modules for the Magnum Mode for best fiber distanceEight-port SFF fiber modules 6K8-MTRJ, 6K8-MLC, 100Mb fiber Eight-Port Copper Module, 6K8-RJ45 ST or SC Four-Port 10 Mb mm Fiber ST Modules@RJ-45 + 2@ 100Mb Gigabit 1000Mbps port modules Frame Buffering and Flow Control Packet Prioritization, 802.1p QOSMIBs for Snmp visit Managed Network Software MNS-6K for Magnum 6K32T„ Features Fiber-Built-In Features and Benefits„ Managed switching for high performance Ethernet LANs Applications Example 1 Magnum 6K32T Switch for a Vlan applicationData Example 3 Redundant Application Www . GarrettCom . com Www . GarrettCom . com Locating Magnum 6K32T Switches InstallationConnecting Fiber Optic ST-type, twist-lock Connecting Ethernet MediaIeee Standard Media Type Max. Distance Port Module Fiber CopperMedia Ieee Standard Connecting Fiber Optic SC-type, Snap-InConnecting Single-Mode Fiber Optic Twisted Pair CAT-5e 1000BASE-T F10ST Magnum 6K32T unit. These Table-Top or Shelf MountingRack-mounting for 19 Retma racks, Magnum 6K32T’s 1 Dual Side-Mountings for Magnum 6K32T units Rack-mounting, Reverse version of the Magnum 6K32T’sPowering the Magnum 6K32T Managed Switch Preparation for Installing and Removing 6KPMs 6K32T Port Module 6KPM InstallationRemove Chassis Cover 1d Top View 6KPM retaining screws hold Face Plate Installing 6KPM Cards in the Magnum 6K32TWww . GarrettCom . com 2g Top View 6KPM Module installed inside a 6K32T Switch Firmly. .5.3a Top View 6 retaining screws shown by arrows Removing 6KPM CardsConsole DB-9 Port Connecting the Console Terminal to Magnum 6K32T ManagementRemove 6KPM Card Rear View of Magnum 6K32TSwitching Functionality Pin Signal DescriptionDB-9 Console port connector 1 RS-232 DB-9 Console Com port Serial port pin assignmentsACT Status LEDsPWR Auto-Cross MDIXAuto-negotiation, for 10/100Mbps RJ-45 ports Www . GarrettCom . com Flow-control, Ieee 802.3x standard Magnum 6K32T Managed Switch Port Modules6KPM Module Description 6KP4-F10ST, 4@10Mb multi-mode FX-ST twist lock Module As 10Mb Half-duplex by Default for 10Mb fiber Connectors and configuredMagnum 6KP4 Flstfx is a combo fiberMode SC-type connectors. It Mode 100Mbps fiber opticTransceivers all in one module. This Activity ACT, Link LK,Www . GarrettCom . com Port@ 100Mbps Multi-Mode Fiber port 6KP8-MTRJActivity FULL/HALF Link7 6KP8-MLC, 8 ports @ 100Mbps multi-mode LC connector Small 9 6KP8-RJ45 Twisted Pair, 10/100Mb 8-Port Ports on one module. The 6KP8-45 Small size of LC connectorsGive an advantage of placing more 11a GBIC-LXSC Gigabit fiber 1000Mb, multi-mode SC Connector GBIC-SXSC Gigabit fiber1000Mb, multi-mode SC Connector@ 1000Mb Fiber SC @ 1000Mb Fiber SC + 2@ 100Mb SCBefore Calling for Assistance 12 6KM-BLNKReturn Material Authorization RMA Procedure When Calling for AssistanceShipping and Packaging Information No Problem FoundPower Supply Internal -48VDC Option Appendix B Internal DC Power Supply OptionsB1.0 Specifications for Magnum 6K32T SWITCHES, DC Power B4.0 Installation B3.0 Applications for DC Powered SwitchesB7.0 Troubleshooting Appendix C Internal DC Dual-Source Power OptionB5.0 Operation B6.0 Ordering InformationC4.0 Features and Benefits of the DUAL-SOURCE Design C5.0 Installation C6.0 Ordering Information C5.1 UL RequirementsExample Magnum 6K32T & 6K32-48VDC C7.0 Operation
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