B4.1 UL Requirements for DC-powered units

Magnum 6K8-Series Industrial Field Switch

Installation and User Guide 03/06)

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 “+”.

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.

B5.0 OPERATION

Operation of Magnum 6K8-Series Switches with the optional -48VDC, 24VDC and 125VDC power supply is identical to that of the standard AC-powered models.

Similarly to order the optional 24VDC or 125VDC industrial specific power supply factory installed, add a suffix of “24VDC” or “125VDC” after the product ‘s standard model #. Example: Magnum 6K8-Series- 24VDC, Magnum 6K8-Series- 125VDC.

B7.0 TROUBLESHOOTING

Please refer to Section 6.0 for troubleshooting

APPENDIX C: Internal DC Dual-Source Power Option

C1.0 SPECIFICATIONS - FOR MAGNUM 6K8-SERIES FIBER SWITCH

Power Supply (Internal, -48VDC Dual-Source, model # Dual-Src-48V)

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 36 - 70 VDC

Power Supply (Internal, 24VDC 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 18 - 36 VDC

GarrettCom 6K8 manual B4.1 UL Requirements for DC-powered units, B5.0 Operation