GarrettCom 4K-Series manual Power Supply Internal 125 VDC Option Industrial Application

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Magnum 4K8 Switches Installation and User Guide (10/04)

APPENDIX B : INTERNAL DC POWER SUPPLY OPTIONS

B1.0 SPECIFICATIONS - FOR MAGNUM 4K8 DC-POWERED SWITCHES Power Supply (Internal -48VDC Option)

DC Power Connector: 3 terminals: “-“, “GND”, “+”

Input Voltage: 36 - 70 VDC

Power Consumption: Model 4K8: 9 watt typical, 11 watts max.

Power Supply (Internal 24 VDC Option) Industrial Application DC Power Connector: 3 terminals: “-“, “GND”, “+” Input Voltage: 20 - 36 VDC

Power Consumption: Model 4K8: 9 watt typical, 11 watts max.

Power Supply (Internal 125 VDC Option) Industrial Application

DC Power Connector: 3 terminals: “-“, “GND”, “+”

Input Voltage: 120 - 160 VDC

Power Consumption: Model 4K8: 9 watt typical, 11 watts max.

With the exception of the power supply, all specifications and functions of Magnum 4K-Series-48VDC, 24VDC and 125VDC models are identical to those listed in the main manual.

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

The -48VDC, 24VDC & 125VDC power option 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. It protects

A+

A-

GND

POWER SWITCH	HUB
	HUB
	SUPPLY
	+
	- FUSE
	CHASSIS
	GND

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 4K-Series Fiber Switches are easily installed in a variety of applications where -48VDC, 24VDC & 125VDC power is used as the primary power source. The- 48VDC, 24VDC & 125VDC power configuration provides an Ethernet networking solution utilizing a special power supply in hubs with a proven track record.

The –48VDC solution is particularly useful in the telecommunication industry,

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Contents 4K8 Switches Trademarks Magnum 4K-Series 4K8 Switches Installation and User GuideEmail support@garrettcom.com Contacting GarrettCom, IncIntroduction Table of ContentsTroubleshooting Media Converters, 10Mb and 100Mb series Personal Switches , 10/100MbPersonal Hubs, 10Mb series Technical Specifications DC Power Supply Options Power Supply InternalWarranty LEDs Per PortOrdering Information Introduction Inspecting the Package and Product Magnum 4K8 Switch chassis Product Description Magnum 4K8 SwitchesFront View Rear View3 Fiber-Port Modules, FPM-ST, FPM-SC, FPM-MTRJ Fiber-port modules, 100Mb fiberFiber-port modules, 10 Mb fiber 5 10/100 Dual-speed Switched ports, RJ-45 copperFrame Buffering and Latency Magnum 4K8 Switches Installation and User Guide 10/04 „ Full-duplex or Half-duplex operation, auto-sensing Features and Benefits„ Eight RJ-45 copper ports, 10/100 auto-negotiation Applications Magnum 4K-Series Ethernet 10/100 Switch Router 4b Magnum 4K8 provides a 100Mb backbone SwitchLocating Magnum 4K8 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 Rack-mounting Are similar to the 19 brackets But use metric dimensionsEtsi European Telephone Standard brackets Optional Brackets and the Etsi bracketsPreparation for Installing and Removing FPMs Fiber Port Module FPM Installation1a Removing Chassis Cover Remove Chassis CoverBefore insertion Installing FPM Cards in the Magnum 4K8 Switches2b Inserting PM Cards into a Magnum 4K8 Removing FPM Cards from Magnum 4K8 Switches3b Removing a FPM Card Powering the Magnum 4K8 SwitchAddress Learning Switching FunctionalityFiltering and Forwarding Error Manual Switches F-H, for FPM Port#9 onlyStatus LEDs Auto-negotiation, for Fast Ethernet copper portsMagnum 4K8 Switches Installation and User Guide 10/04 Flow-control, Ieee 802.3x standard Auto-negotiation for 10/100Mb portsFiber Port Module Product Description Introduction Magnum 4K8 Fiber-Port Modules FPMInspecting the Package and Product Optional FPM-MSC 100Mbps multi-mode FX-SC-type, snap-in connector FPM-MST, 100Mbps multi-mode FX-ST-type, twist-lock connectorActivity 2 Link FPM-SSC 100Mbps single-mode FX-SC-type, snap-in connector100BASE-FX MT-RJ Activity LinkFPM-Blank FPM-BlankBefore Calling for Assistance Return Material Authorization RMA Procedure When Calling for AssistanceShipping and Packaging Information No Problem FoundB3.0 Applications for DC Powered Switches Power Supply Internal 125 VDC Option Industrial ApplicationFigure B4.1 -48VDC Terminal Block on Magnum Ks-48VDC B4.0 InstallationB4.1 UL Requirements B7.0 TroubleshootingB5.0 Operation B6.0 Ordering InformationC3.0 DUAL-SOURCE OPTION, Theory of Operation C4.0 Features and Benefits of the DUAL-SOURCE DesignC5.0 Installation C6.0 Ordering Information C5.1 UL RequirementsExample Magnum 4K8-48VDC C7.0 Operation