Instruction/ maintenance manual of the product 8800 3Com
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3Com ® Switch 8800 Power Over Ether net Installation Guide www.3Com.com Part Number: 10015270 Rev. AA Published: July 2006.
3Com Corporation 350 Campus Drive Marlbor ough, MA USA 01752-3064 Copyright © 2006, 3Com Corporati on. All rights reserv ed. No part of this documentation may be r eproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corpo ration.
C ONTENTS 3 C ONTENTS 1 I NTRODUCTION Switch 8800 PoE Power Rack 5 Features 5 Architectur e and Configurations 5 2 S YSTEM D ESCRIPTION Overview 9 Power Supply Modules 9 PoE Power Rack 9 Power Supply .
4 C ONTENTS.
1 I NTR ODUCTION Switch 8800 PoE Power Rack The 3Com Switch 8800 PoE power rack is a modular , stand-alo ne Power over Ether net (PoE) power sour ce. The PoE Power Rack provides a total of 4500 W atts of DC power with 2+1 power redundancy for PoE powered devi ces connected to the Switch 8800 chas sis.
6 C HAPTER 1: I NTRODUCTION Figure 1 The PoE Power Rack Figure 2 The PoE Power Rack (Rear View) Refer to F igur e 3 for the fron t view of a f ully equippe d PoE power rack.
Architecture and Conf igurations 7 Figure 3 The PoE Power Rack Configur ed with Three Power Supply Modules (Fr ont VIew).
8 C HAPTER 1: I NTRODUCTION.
2 S YSTEM D ESCRIPTION Overview Figur e 4 shows the schematic diagra m of the PoE Power Rack power system, showing the interconnections and signal flow through the power supply modules and inter nal components. Figure 4 Schematic Diagram of the PoE Power Rack Power Supply Modules DC power is supplied to the power bus by the power supply modules.
10 C HAPTER 2: S YSTEM D ESCRIPTION Power Supply Module Visual indicators The front panel of the power supply module has three LEDs (Figur e 5). Their descriptions, colors, and functions ar e sho wn in Ta b l e 2. System Controller The PoE Power Rack has a system contr oller at the front of the chassis.
System Controller 11 ■ Monitor system operation status - An AC sensor card inside the PoE Power Rack samples the AC input voltage. The sampled signal is sent to the controller for processing. If the AC input voltage is lower than the pre-set al arm level, the controller r eports an AC input under -voltage alarm.
12 C HAPTER 2: S YSTEM D ESCRIPTION Distribution Panel The distribution p anel consists of DC out put sockets and three AC input sockets. Refer to Figure 7. Figure 7 Distribution Panel The three EN60320 C20 AC input sockets on the front panel of the device ar e rated at 20A@250V AC.
3 S AFETY Safety Statements Please read and follow a ll sa fety instructions and warnings before servicing the PoE Power Rack. Refer to the individual module product manuals fo r additional safety statements specific to the modules. ■ The device must be in a restricted access area (dedicated equipment rooms, equipment closets, etc.
14 C HAPTER 3: S AFETY electrical equipment and who understand the hazards that can arise when working on this equipment. ■ The PoE Power Rack can be powered by multiple AC inputs, ensure that the appropriate cir cuit protection device for each AC input being serviced is disconnected before changing or servicing a Power Suppl y Module.
4 I NSTALLATION AND TESTING Introduction This section outlines the sequence for inst alling the PoE Power Rack, including plug-in modules. T est procedures for verifying th e integrity of the installation are also included. Guidelines The device must be installed to allow sufficient front and r ear access.
16 C HAPTER 4: I NSTALLATION AND TESTING Install the PoE DIMM Module If you are installing the opt ional PoE DIMM module, use the following instructions. T echnical Specifications The technical specific ations of PoE DIMM (Dual In-lin e Memory Module) ar e listed in Ta b l e 5.
Installation Sequence 17 3 The following items are included in the unit packaging: PoE Power Rack, power supply module, dummy faceplates and cabl es. Remove al l this material and place aside. Mounting screws ar e NOT supplied with th e PoE Power Rack.
18 C HAPTER 4: I NSTALLATION AND TESTING Install Power Supply Modules Power Supply Modules are installed by slid ing into the power rack, pu shing until the power supply module is fully inserted , and closing the handle on the power supply module. Refer to Figure 10 .
Installation Sequence 19 Connecting to AC utility/ AC groun ding AC power input is accessed from the front of the unit. AC power cord connection is made using power cords with IEC 60320 C- 19 connector plugs. The AC pow er plugs are labeled Input 1, Input 2, and Input 3, which corr espond to the power supply modules numbered fr om le ft to right.
20 C HAPTER 4: I NSTALLATION AND TESTING.
5 E NGINEERING , M AINTENANCE AND T R OUBLESHOOTING Maintenance and T roubleshooting This section pr ovides fiel d maintenance info rmation a nd tr oubleshooting procedures for the PoE Power Rack an d power supply mo dules.
22 C HAPTER 5: E NGINEERING , M AINTENANCE AND T ROUB LESHOOTING ALM or None -- Controller failure Replace the controller T able 6 T roubleshooting Guide Controller alarm status Power supply module di.
An important point after buying a device 3Com 8800 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3Com 8800 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3Com 8800 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 8800 you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 8800 will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 8800, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3Com 8800.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 8800. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 8800 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
