GarrettCom DS8016 - Manual (Page 39)

Magnum DS8016 Dual-Speed Stackable Hubs Installation and User Guide (07/06)
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B4.0 INSTALLATION
This section describes the installation of the 48 VDC power source leads to the 48
VDC power terminal block on the Magnum DS8016s. (see figure below).
Figure A4.1: 48 VDC Terminal
Block on Magnum DS8016-48VDC
The 48 VDC terminal block
on the Magnum DS8016s is located
on the rear of the unit and is equipped
with three (3) screw-down lead posts.
The leads are identified as negative (-), positive (+), 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.
36-70VDC
_
+ GND
ON
OFF
On the premium-priced NEBS-compliant Magnum DS8016-48V models, an ON-
OFF switch is included, located in the rear at the power input. This can be used in
conjunction with power connections, and as a RESET for the hub’s electronics.
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 DS8016s with the optional 48VDC power supply is
identical to that of the standard AC-powered models.
B6.0 TROUBLESHOOTING
Please refer to Section 5.0 for troubleshooting