B4.0, B4.1 UL Requirements for DC-powered units | GarrettCom 6K25

Magnum 6K25 Managed Fiber Switch		Installation and User Guide (04/06)
B4.0	INSTALLATION
	This section describes the installation of the -48 VDC, 24VDC and 125VDC

power source leads to the -48 VDC, 24VDC and 125VDC power terminal block on the

Magnum 6K25s. (see figure at right).

_ GND +

In this picture, the -48VDC

terminal block on the Magnum 6K25 is

ON

located on the rear of the unit and is

OFF

equipped with three (3) screw-down

lead posts. It is similar for 24VDC and

125VDC options on Magnum 6K25.

36-70VDC

The leads are identified as negative (-),

positive (+),

Figure B4.0: -48VDC Terminal Block on Magnum 6K25-48VDC

and chassis ground (GND).

The actual connection procedure is very straightforward. Simply connect the leads to the Magnum unit, beginning with ground. Ensure that each lead is securely tightened.

Note: The GND should be hooked up first. The 6K25 unit has a floating ground, so the user may elect to Ground either + or = terminal to suit the customer’s use.

Before connecting hot lines to the Terminal Block of –48VDC, 24VDC or 125VDC, always use a digital voltmeter to measure the output voltage of the power supply and determine the lead which is more “+ve potential”. The more “+ve” voltage lead from 48V or –48V supply must be connected to the post labeled “+”.

An ON-OFF manual switch is optional for DC power. This can be used to cut off power connections and as a RESET for the Magnum 6K25 Switch.

B4.1 UL Requirements for DC-powered units

1.Minimum 18AWG cable for connection to a Centralized DC power source.

2.Minimum 14AWG cable for connection to a earthing wiring.

3.Use only with Listed 10 A circuit breaker provided in building installation.

4.“Complies with FDA radiation performance standards, 21 CFR subchapter J.” or equivalent.

5.Fastening torque of the lugs on the terminal block: 9 inch-pound max.

6.Centralized DC Power Source cable securement, use at least four cable ties to secure the cable to the rac,k at least 4 inches apart, with the first one located within 6 inches of the terminal block.

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GarrettCom 6K25 manual B4.0, B4.1 UL Requirements for DC-powered units

Contents

Managed Fiber Switch Trademarks Contacting GarrettCom, Inc Canadian Emission Specifications Troubleshooting Revisions Magnum Line Technical Specifications PerformanceNetwork Standards and Compliance, hardware Maximum 10 Mbps Ethernet Segment Lengths Fiber Multi-mode connector types supported Fiber Single-mode connector typesManagement Console connector Power Supply Internal Alarm Contact Optional Nebs Testing and Certification Nebs certifiedPer-port MDI or Mdix on RJ-45 Agency Approvals Ordering Information For Gigabit module configuration options 6K PoE Modules with 48VDC Pass-Through 6K PoE Modules with 48VDC Power Inside Introduction Inspecting the Package and Product Product Description Magnum 6K25 Managed Fiber Switch 1a Regular 6K25 front view, configured for 24 +1 Gb ports Magnum 6K25 and 6K25R chassis Eight-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 Four-Port 10 Mb mm Fiber ST Modules Gigabit 1000Mbps port modules Frame Buffering and Flow Control Packet Prioritization, 802.1p QOS@ 1000Mb Fiber SC + 4@10/ 100Mb Managed Network Software MNS-6K for Magnum 6K25-Series GarrettCom proprietary MIBs for Snmp „ Managed switching for high performance Ethernet LANs „ Features Fiber-Built-In „ Nebs and Etsi tested and certified „ RJ-45 ports are MDI/MDIX supported Example 1 Magnum 6K25 Switch for a Vlan application Applications Www . GarrettCom . com Installation Locating Magnum 6K25 Switches Connecting Ethernet Media Connecting Fiber Optic ST-type, twist-lockIeee Standard Media Type Max. Distance Port Module Fiber Copper Connecting Single-Mode Fiber Optic Connecting Fiber Optic SC-type, Snap-InMedia Ieee Standard Table-Top or Shelf Mounting Rack-mounting for 19 Retma racks, regular Magnum 6K25s 1 Mountings for Magnum 6K25 units rack-mounted in a frame Rack-mounting, Reverse version of the Magnum 6K25s Powering the Magnum Managed Fiber Switch2 Reverse Magnum 6K25 units, rack-mounted in a frame 6K25 Port Module 6KPM Installation Preparation for Installing and Removing 6KPMs Remove Chassis Cover Installing 6KPM Cards in the Magnum 6K25 1c Top View 6KPM retaining screws hold Face Plate Uplink 2f Securely latching up 6KPM Cards into a Magnum 6K25 2g Top View 6KPM Module installed inside a 6K25 Removing 6KPM Cards 3b Removing a 6KPM Card Connecting the Console Terminal to Magnum 6K25 Management Pin Signal DescriptionDB-9 Console port connector Console DB-9 Port Switching Functionality Filtering and Forwarding Up-link MDI-MDIX on RJ-45 port modules, for port 1 only Status LEDsAuto-CrossMDIX and Auto-negotiation, for RJ-45 ports Www . GarrettCom . com Flow-control, Ieee 802.3x standard 6KP4 ’cvr Introduction Magnum 6K25 Managed Fiber Switch Port Modules ZXSC70 6KPM Module Description 6KP4-F10ST, 4@10Mb multi-mode FX-ST twist lock Module @10Mb @100Mb Multi-mode FX-ST twist 1c 6KP4Lock Module Mode SC-type connectors. It Provides an advantage Fiber functions in one Module of the 6K25 SwitchCopper ports and 2 Single Through combining copper Distances up the IEEE-standard Port@ 100Mbps Multi-Mode Fiber port100Mbps distance limits, i.e Magnum 6KP8-45MT Module is a combo module withCopper and fiber Small Form Factor Placing more ports on one module Connector Small 6KP8-MLC, 8 ports @100Mbps multi-mode LC Form Factor 9 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 When Calling for Assistance Before Calling for Assistance No Problem Found Return Material Authorization RMA ProcedureShipping and Packaging Information Appendix a Warranty Information Appendix B Internal DC Power Supply Options B3.0 Applications for DC Powered Switches B4.1 UL Requirements for DC-powered units B4.0 Appendix C Internal DC Dual-Source Power Option B5.0 Operation C4.0 Features and Benefits of the DUAL-SOURCE Design Example Magnum 6K25R-48VDC C5.1 UL RequirementsExample Magnum 6K25R-24VDC or Magnum 6K25R-125VDC