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

B4.1 UL Requirements

1.Minimum 14 AWG cable for connection to a Centralized DC power source.

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

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

B5.0 OPERATION

Operation of the Magnum Ks with the optional -48VDC, 24VDC & 125VDC power supply is identical to that of the standard AC-powered models.

B6.0 ORDERING INFORMATION

To order the optional -48VDC power supply factory installed, add a suffix of “- -48VDC” after the product’s standard model #. Example: Magnum 4K8-48VDC.

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 4K8- 24VDC or Magnum 4K8- 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 4K-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 Consumption:

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

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 20 - 36 VDC

Power Consumption:

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

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

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 120 - 160 VDC

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

With the exception of the dual DC input power connections and the power supply, all specifications and configuration options for the Magnum 4K8 -48VDC, 4K8-24VDC & 125VDC with this Dual-Source option are identical to those listed in the Magnum 4K-

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GarrettCom 4K-Series manual B4.1 UL Requirements, B5.0 Operation, B6.0 Ordering Information, B7.0 Troubleshooting