3Com 8800 Installation Manual

Also see for 8800 SERIES: Installation guide Datasheet Product guide Configuration guide

Contents

3Com 8800 Installation Manual Manual pdf 19 page image

Installation Sequence 19Connecting to AC utility/AC groundingAC power input is accessed from the front of the unit. AC power cord connection ismade using power cords with IEC 60320 C-19 connector plugs. The AC power plugsare labeled Input 1, Input 2, and Input 3, which correspond to the power supplymodules numbered from left to right. Refer to Figure 12.To connect AC power:1 Turn the AC branch circuit breakers to the "OFF" position.2 Ensure that the AC input switches are in the "OFF" position.Plug the AC input power cord(s) into the AC socket(s) that correspond to the powersupply module slot location(s). For example, the C20 coupler labeled "Input1"corresponds to the power supply module in the furthest left power supply moduleslot, when viewing the PoE Power Rack from the front.Figure 12 DC and AC ConnectionsInitial Start-up Verify that all AC branch circuit breakers and PoE Power Rack AC power switches arein the "OFF" position.Powering on the Device1 Ensure that all power supply modules are seated and locked into position in the PoEPower Rack.2 Turn the AC branch circuit breakers to the "ON" position.3 Turn the PoE Power Rack AC power switches to the "ON" position (corresponding tothe power supply modules installed).4 Verify that the "AC OK", "DC OK", and green LEDs are on.5 Verify the fan is operating on each power supply module.6 Wait approximately 10-30 seconds to allow the switch system to go through itsstart-up procedure.7 Verify that the green LED on the controller panel is on.8 Use a digital voltmeter to verify that the DC output voltage is approximately -54VDC.9 For systems with more than one power supply module installed, turn one of the ACpower input switches to "OFF" to verify that the red alarm LED lights on the PoEPower Rack controller.10 For systems with more than one power supply module installed, turn the second ACinput switch off to verify that the FAULT LED lights on the controller. Clear the alarmsby turning on the AC input switch.

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