GarrettCom 6K25 manual B3.0 Applications for DC Powered Switches

Page 63

Magnum 6K25 Managed Fiber Switch Installation and User Guide (04/06)

Input Voltage: 88 - 150 VDC

Power Consumption: Same as for AC models (see Section 1.1)

With the exception of the power supply, all specifications and functions of Magnum 6K25 Switch -48VDC, 24VDC and 125VDC models are identical to those listed in the main manual.

B2.0 -48VDC, 24VDC and 125VDC POWER, THEORY OF OPERATION

The -48VDC, 24VDC and 125VDC power options are designed using diodes inside on each DC power input line behind the two external power connection terminals,

so that the power from an external source can only flow into the hub. This allows the Switch to operate only whenever DC power is correctly applied to the two inputs.

 

POWER SWITCH

HUB

 

 

 

 

SUPPLY

A+

 

+ FUSE

 

 

-

A-

 

 

GND

 

CHASSIS

 

GND

 

 

It protects the Switch from incorrect DC input connections. An incorrect polarity connection, for example, will neither affect the Switch, its internal power supply, nor will it blow the fuse in the internal power supply.

The manual power “On-Off” Switch (optional) is used for powering the unit on and off when it is placed into or taken out of service.

B3.0 APPLICATIONS FOR DC POWERED SWITCHES

Magnum 6K25 Fiber Switches are easily installed in a variety of applications where -48VDC, 24VDC and 125VDC power is used as the primary power source. The- 48VDC, 24VDC and 125VDC power configuration provides an Ethernet networking solution utilizing a special power supply in a managed Fiber Switch.

The –48VDC solution is particularly useful in the telecommunication industry, where it is common for facilities to operate on -48VDC power. Such companies include regular and wireless telephone service providers, Internet Service Providers (ISPs) and other communication companies. In addition, many high availability equipment services, such as broadcasters, publishers, newspaper operations, brokerage firms and other facilities often use a battery backup system to maintain operations in the event of a power failure. It is also frequently used for computer system backup, management and operations monitoring equipment.

The 24VDC and 125VDC solution are particularly useful in the Industrial environment, where it is common facilities to operate on 24VDC or 125VDC power. The 125VDC solution is mainly used in power utilities, such as electrical substations, electrical generating plants, etc. The 24VDC applications are mainly in the Industrial environment, such as factory floor, HVAC equipment, military equipment, etc.

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Contents Managed Fiber Switch Trademarks Canadian Emission Contacting GarrettCom, IncSpecifications Troubleshooting Revisions Magnum Line Maximum 10 Mbps Ethernet Segment Lengths Technical SpecificationsPerformance Network Standards and Compliance, hardwarePower Supply Internal Fiber Multi-mode connector types supportedFiber Single-mode connector types Management Console connectorAgency Approvals Alarm Contact OptionalNebs Testing and Certification Nebs certified Per-port MDI or Mdix on RJ-45Ordering Information 6K PoE Modules with 48VDC Pass-Through For Gigabit module configuration options6K PoE Modules with 48VDC Power Inside Introduction Inspecting the Package and Product Product Description Magnum 6K25 Managed Fiber Switch Magnum 6K25 and 6K25R chassis 1a Regular 6K25 front view, configured for 24 +1 Gb portsEight-port SFF fiber modules 6K8-MTRJ, 6K8-MLC, 100Mb fiber Eight-Port Copper Module, 6K8-RJ45 The 6K25-Series’s8-port New PoEPower Inside, model PI6KP8-45RJ MDIX, 10/100Mb 8-port ACT LK RX Gigabit 1000Mbps port modules Four-Port 10 Mb mm Fiber ST ModulesPacket Prioritization, 802.1p QOS Frame Buffering and Flow Control@ 1000Mb Fiber SC + 4@10/ 100Mb GarrettCom proprietary MIBs for Snmp Managed Network Software MNS-6K for Magnum 6K25-Series„ Features Fiber-Built-In „ Managed switching for high performance Ethernet LANs„ RJ-45 ports are MDI/MDIX supported „ Nebs and Etsi tested and certifiedApplications Example 1 Magnum 6K25 Switch for a Vlan applicationWww . GarrettCom . com Locating Magnum 6K25 Switches InstallationCopper Connecting Ethernet MediaConnecting Fiber Optic ST-type, twist-lock Ieee Standard Media Type Max. Distance Port Module FiberConnecting Fiber Optic SC-type, Snap-In Connecting Single-Mode Fiber OpticMedia Ieee Standard Table-Top or Shelf Mounting 1 Mountings for Magnum 6K25 units rack-mounted in a frame Rack-mounting for 19 Retma racks, regular Magnum 6K25sPowering the Magnum Managed Fiber Switch Rack-mounting, Reverse version of the Magnum 6K25s2 Reverse Magnum 6K25 units, rack-mounted in a frame 6K25 Port Module 6KPM Installation Remove Chassis Cover Preparation for Installing and Removing 6KPMs1c Top View 6KPM retaining screws hold Face Plate Installing 6KPM Cards in the Magnum 6K25Uplink 2f Securely latching up 6KPM Cards into a Magnum 6K25 2g Top View 6KPM Module installed inside a 6K25 3b Removing a 6KPM Card Removing 6KPM CardsConsole DB-9 Port Connecting the Console Terminal to Magnum 6K25 ManagementPin Signal Description DB-9 Console port connectorFiltering and Forwarding Switching FunctionalityStatus LEDs Up-link MDI-MDIX on RJ-45 port modules, for port 1 onlyAuto-CrossMDIX and Auto-negotiation, for RJ-45 ports Www . GarrettCom . com Flow-control, Ieee 802.3x standard ’cvr 6KP4ZXSC70 Introduction Magnum 6K25 Managed Fiber Switch Port Modules6KPM Module Description 6KP4-F10ST, 4@10Mb multi-mode FX-ST twist lock Module 1c 6KP4 @10Mb @100Mb Multi-mode FX-ST twistLock Module Through combining copper Mode SC-type connectors. It Provides an advantageFiber functions in one Module of the 6K25 Switch Copper ports and 2 SinglePort@ 100Mbps Multi-Mode Fiber port Distances up the IEEE-standard100Mbps distance limits, i.e Placing more ports on one module Magnum 6KP8-45MTModule is a combo module with Copper and fiber Small Form FactorForm Factor Connector Small6KP8-MLC, 8 ports @ 100Mbps multi-mode LC9 6KP8-RJ45 Twisted Pair, 10/100Mb 8-Port PoE LEDs Summary Fig. the top 8-RJ45 GBIC-SXSC Gigabit fiber1000Mb, multi-mode SC Connector 14 6KM-BLNK Before Calling for Assistance When Calling for AssistanceReturn Material Authorization RMA Procedure No Problem FoundShipping and Packaging Information Appendix B Internal DC Power Supply Options Appendix a Warranty InformationB3.0 Applications for DC Powered Switches B4.0 B4.1 UL Requirements for DC-powered unitsB5.0 Operation Appendix C Internal DC Dual-Source Power OptionC4.0 Features and Benefits of the DUAL-SOURCE Design C5.1 UL Requirements Example Magnum 6K25R-48VDCExample Magnum 6K25R-24VDC or Magnum 6K25R-125VDC
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