GarrettCom 1008 - Manual (Page 44)

Magnum 1000 Workgroup Hubs Installation and User Guide (04/02)
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Note: Before connecting to 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 Lead”. The more “+ve” voltage
terminal lead from 48V or –48V Power supply must be connected to the post labeled
“+”.
The GND can be hooked at the last.
Disconnecting the DC power source is used to remove the unit from service, and as a
power-down to RESET the hub’s electronics if needed.
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 1000’s 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 1016-48VDC.
Similarly for “24VDC” : Magnum 1016-24VDC.
B7.0 TROUBLESHOOTING
Please refer to Section 6.0 for troubleshooting