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NEC N8141-75F, User Manual

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NEC N8141-75F User Manual Download Page 85

- 32 - 

Redundant power supply 

The N8181-54F power unit is shipped in the redundant power configuration. 
To use N8181-54F as the redundant power supply, install it in the Device Expansion Unit 

without any modification. 
 

Installation 

Install N8181-54F in the following procedure. See the section "Preparing for 

Installation and Removal" to prepare. 

 

1. 

Make preparation according to the description in page 26. 

IMPORTANT: 

Turn off the powers of the NEC Express 

Servers and that of the Device Expansion Unit. Before the 

top cover can be removed, the power cord must be removed 

from the Device Expansion Unit. Then disconnect all the 

cables from the Device Expansion Unit. Before the top cover 

can be removed, the power cord must be removed from the 

Device Expansion Unit

.

 

2. 

Remove the top cover. 

3. 

Remove the AC inlet dummy panel from the rear face of the Device Expansion 

Unit. 

 

AC inlet dummy 

panel 

Summary of Contents for N8141-75F

Page 1: ...and the User s Guide that comes with the NEC Express Server thoroughly to fully understand the handling of the N8141 75F 2U Device Expansion Unit Always read the Notes on Safety before using the N814...

Page 2: ...he Warranty Statement accompanying each product However actual performance of each such product is dependent upon factors such as system configuration customer data and operator control Since implemen...

Page 3: ...energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cau...

Page 4: ...r State requires that used electrical and electronic products carrying the mark left must be disposed of separately from normal household waste This includes Information and Communication Technology I...

Page 5: ...on RoHS The content of hazardous substance with the exemption of the applications listed in the Annex 2 of TR on RoHS 1 Lead Pb not over 0 1wt or 1000wt ppm 2 Cadmium Cd not over 0 01wt or 100wt ppm 3...

Page 6: ...dividual names Notes 1 No part of this manual may be reproduced in any form without prior written permission of NEC Corporation 2 The contents of this User s guide may be revised without prior notice...

Page 7: ...amaged If you find any components missing or damaged contact your sales agent When the N8141 75F 2U Device Expansion Unit is shipped with some options installed the accessories for the options are con...

Page 8: ...h or serious personal injury CAUTION Indicates there is a risk of burns other personal injury or property damage Precautions and notices against hazards are presented with one of the following three s...

Page 9: ...tory action Do not disassemble repair or modify the Device Expansion Unit Otherwise an electric shock or fire may be caused Do not touch any component other than specified Otherwise an electric shock...

Page 10: ...ury due to falling of the rack may occur For the detailed explanation on the place where the rack should be installed and the earthquake resistant construction for the rack refer to the manual attache...

Page 11: ...the above mentioned objects accidentally enters the Device Expansion Unit immediately turn off the power and disconnect the power plug from the outlet Do not disassemble the Device Expansion Unit Cont...

Page 12: ...ay cause an electric shock if the power is not disconnected properly CAUTION Plug into a proper power source Use a grounded outlet with the specified voltage Use of an improper power source may cause...

Page 13: ...he power cord Do not place any object on the power cord Uncoil the power cord before use Do not alter modify or repair the power cord Do not secure the power cord with staples or equivalents Do not st...

Page 14: ...rails When installing the door make sure that both upper and lower hinge pins are held in place Failure to follow this instruction not only may cause some parts to fall but may also be broken and res...

Page 15: ...is not compromised Mechanical Loading Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to uneven mechanical loading Circuit Overloading Consideratio...

Page 16: ...ving the device onto from the rack be careful to avoid getting your fingers caught in the rails or cutting your fingers on the rails Do not attempt to connect or disconnect the interface cable while t...

Page 17: ...place where corrosive gases exist Do not install the Device Expansion Unit in a place subject to corrosive gases including sulfur dioxide hydrogen sulfide nitrogen dioxide chlorine ammonia and ozone...

Page 18: ...ed off Also disconnect the power plug from the outlet occasionally and clean the plug with a dry cloth Heat will be generated if condensation is formed on a dusty plug which may cause a fire CAUTION H...

Page 19: ...understorm is approaching Also do not connect or disconnect any devices There may be a risk of electric shock from lightning strike Do not place any object on top of the Device Expansion Unit The Devi...

Page 20: ...nger or their vicinity in the Device Expansion Unit to inform the user that a hazardous situation may arise when operating the chassis do not take off or stain any label If you find any label unattach...

Page 21: ...xix...

Page 22: ...xx...

Page 23: ...xxi...

Page 24: ...xxii EIA NEC 19 EIA EIA...

Page 25: ...xxiii 2 2 AC 2 0I AC...

Page 26: ...xxiv...

Page 27: ...xxv 44U 2...

Page 28: ...xxvi...

Page 29: ...xxvii 20KG 2...

Page 30: ...xxviii...

Page 31: ...xxix...

Page 32: ...xxx PHS PHS...

Page 33: ...xxxi...

Page 34: ...xxxii...

Page 35: ...xxxiii...

Page 36: ...xxxiv...

Page 37: ...xxxv EIA NEC 19 EIA EIA...

Page 38: ...xxxvi 2 2 AC 2 0I AC...

Page 39: ...xxxvii...

Page 40: ...xxxviii 44U 2...

Page 41: ...xxxix...

Page 42: ...xl 20KG 2...

Page 43: ...xli...

Page 44: ...xlii...

Page 45: ...xliii PHS PHS...

Page 46: ...xliv...

Page 47: ...xlv...

Page 48: ...wer and unplug the power cord from the outlet before relocating the Device Expansion Unit Clean the Device Expansion Unit on a regular basis Regular cleaning proactively prevents various failures of t...

Page 49: ...bracelet or wrist watch Handling of Components Keep the component in an anti static bag until you install it to the server Hold the component by the edges to avoid touching any terminals or mounting...

Page 50: ...xlviii LAN...

Page 51: ...xlix...

Page 52: ...nit or the accessories that come with the Device Expansion Unit to a third party make sure to provide this User s Guide along with the chassis or the accessories to a third party Disposal of Consumabl...

Page 53: ...ons 8 3 Installation and Connections of Device Expansion Unit 11 Installation 11 Installation to Rack Removal from Rack 13 Connection 20 4 Fundamental Operation 22 Power On Off 22 5 Installing Options...

Page 54: ...Unit an option connected to the NEC Express server includes four slots to which backup devices 5 25 inch devices such as magnetic tape drives or up to two slots for 5 25 inch devices of auto changer t...

Page 55: ...nfiguration In the 1 power configuration at the shipment the Device Expansion Unit becomes unavailable if the power unit is failed In the redundant power configuration the Device Expansion Unit can be...

Page 56: ...of the Device Expansion Unit is turned on In the installation of the normal power supply the power LED 1 turns red if a power fault occurs or a power fan is stopped In the installation of the redundan...

Page 57: ...4 REAR VIEW In use of standard power supply In use of N8181 54F power unit added...

Page 58: ...s Page 41 6 Connector The SAS 2 connector is intended to connect with SAS cable K410 168 02 K410 191 02 for connecting the Device Expansion Unit to an NEC Express Server The connector connects the NEC...

Page 59: ...C power switch to ON Turning off the Power of Device Expansion Unit To turn off the power of the Device Expansion Unit follow the procedure below 1 Set the DC power switch to OFF IMPORTANT The power o...

Page 60: ...ower unit 2 Fan for power unit 3 Power backboard 4 Slot for additional 5 25 inch device see page 27 5 Slot for additional optional power supply unit see page 31 6 Latching rail 7 SAS interface cable 8...

Page 61: ...ct 2 Redundant Power supply 3 DC Power supply input Connect 2 2 Power supply 4 Device power supply out put Device1 2 5 Device power supply out put Device3 4 1 power supply Redundant Power supply 6 Dev...

Page 62: ...ruptible power unit UPS confirm that the power of the power controller is turned on Make sure that the SAS cable is connected to the NEC Express server See page 38 Before the power of the Device Expan...

Page 63: ...it fan supply 1 is failed Turn off the power of the Device Expansion Unit immediately and disconnect the power plug Then contact your maintenance service company Lighting in red An error is detected i...

Page 64: ...See the description on pages iv through xviii for details Do not use the Device Expansion Unit in any place other than specified Do not connect the ground wire to a gas pipe CAUTION Always observe the...

Page 65: ...laced or in which chemicals may be splashed to the Device Expansion Unit A place on which a carpet that is not subject to anti static process is laid A place in which some objects may be fallen on the...

Page 66: ...xvii for details Do not lift the Device Expansion Unit only by yourself Do not install with the load weight distributed unevenly Do not install the Device Expansion Unit leaving the cover removed Do n...

Page 67: ...the rack rails attach the inner rails to the Device Expansion Unit with a M4 Millimeter Screws 2 Loosen the eight screws fixing the slide bracket of each of the outer rails This is required to have th...

Page 68: ...en the front and rear angle holes is placed at the center of the rack rail For any NEC rack round stamps are put in the unit of 1U Locate the rack rail so that a stamp is placed at the center of the o...

Page 69: ...in the same way as described in steps 1 to 4 above NOTE Confirm that the outer rail is installed at the same level as that of the other rail already installed 7 Two or more workers hold the unit secur...

Page 70: ...ion you may feel strong friction when pushing the unit because mechanical components do not sufficiently mate with each other Push the unit strongly 8 Pull out or push the unit from or into the rack f...

Page 71: ...w these cautions may cause personal injury including burns and or physical damages See the description on pages vi through xvii for details Do not attempt to carry or install the Device Expansion Unit...

Page 72: ...pull out the Device Expansion Unit from the rack slowly and carefully The Device Expansion Unit clicks to be latched 4 Pull out the Device Expansion Unit from the rack slowly with the right and left r...

Page 73: ...ou to use the Device Expansion Unit safely Failure to follow these instructions may cause death or serious personal injury See the description on pages vi through xvii for details Do not hold the powe...

Page 74: ...xpansion Unit to the NEC Express server after turning off the power of the NEC Express server If the Device Expansion Unit is connected to the NEC Express server with the power of the NEC Express serv...

Page 75: ...nt that the device is available for the NEC Express server Some devices supplied by third parties are not available for the Device Expansion Unit The Power switch on the rear of the Device Expansion U...

Page 76: ...liability for any damage of the Device Expansion Unit and any components and the results from the system operation It is recommended to ask a maintenance engineer of your sales agent having the exper...

Page 77: ...r the Device Expansion Unit Disconnect the power plug before working with the Device Expansion Unit CAUTION Observe the following instructions to use the Device Expansion Unit safely Failure to follow...

Page 78: ...suitable workspace Work with the Device Expansion Unit on the anti static or concrete floor When you work with the Device Expansion Unit on a carpet where static electricity is likely to be generated...

Page 79: ...NEC Express server 2 Turn off the power of the NEC Express server Refer to the User s Guide of the NEC Express server for turning off the power of the server 3 Unplug the power cord of the NEC Expres...

Page 80: ...ices such as magnetic tape drives are installed IMPORTANT Do not use 5 25 inch devices unauthorized by NEC If an unauthorized third party s device is installed in the Device Expansion Unit the unit it...

Page 81: ...horized by NEC 1 See the section Preparing for Installation and Removal to prepare See page 26 2 Pull out the Device Expansion Unit from the rack 3 Remove the Top cover 4 Check the slots in which 5 25...

Page 82: ...rail to the 5 25 inch device refer to the user s guide that comes with the device to check the specification of the screws 8 Insert the device into the bay Push the device until it clicks 9 Connect t...

Page 83: ...vice clicks after the connection of the SAS interface and power cables within the Device Expansion Unit This procedure allows the work to be easier 10 Install the parts removed before Removal Pull out...

Page 84: ...ower unit N8181 54F allows the system to be operated without interruption if a single power unit is failed redundant function Names of Parts 1 Power unit cover 2 Power supply 3 AC inlet 4 DC power cab...

Page 85: ...Make preparation according to the description in page 26 IMPORTANT Turn off the powers of the NEC Express Servers and that of the Device Expansion Unit Before the top cover can be removed the power c...

Page 86: ...e Device Expansion Unit from above so that the respective screw holes mate with each other Fix the power unit with the attached M3 screws 4 5 Fix the earth terminal with the attached M4 screw 1 devi F...

Page 87: ...please refer to the User s Guide for each device 8 Connect the AC cord and the SAS cable to the Device Expansion Unit 9 Turn on the power of the Device Expansion Unit 10 Turn on the powers of the NEC...

Page 88: ...uration remove the SW dummy panel and connect the DC switch cable 1 Remove SW dummy panel fixed by a screw 2 Path the DC switch cable through the hole from the connector side and inlet the SW part com...

Page 89: ...rvers and that of the Device Expansion Unit Then disconnect all the cables from the Device Expansion Unit Before the top cover can be removed the power cord must be removed from the Device Expansion U...

Page 90: ...on the Device Expansion Unit from above so that the respective screw holes mate with each other Fix the power unit with the attached M3 screws 4 5 Fix the earth terminal with the attached M4 screw 1...

Page 91: ...t the CD power switch cable to the SW2 connector K on the power backboard 9 Check the connections to the device and install the top cover For more information about connecting the interface and power...

Page 92: ...description on pages vi through xvii for details Do not leave more than one device being pulled out from the rack Make sure to complete cable and option installations Do not install the Device Expans...

Page 93: ...front of the unit Slide the top cover to backward and remove it IMPORTANT Turn off the powers of the NEC Express Servers and that of the Device Expansion Unit Then disconnect all the cables from the...

Page 94: ...ructions may cause personal injury including burns and or physical damages See the description on pages vi through xvii for details Do not connect the SAS interface cable halfway Always pull out the p...

Page 95: ...cable with either or both of the power of the NEC Express server and the power unit of the Device Expansion Unit being on may cause some malfunction or failure 1 See the section Preparing for Installa...

Page 96: ...Remove the top cover according to the description in page 40 3 Remove the M3 bind screws 2 and then remove the connector panel 4 Insert SAS cable K410 335 00 from the inside of the Device Expansion Un...

Page 97: ...ices or more are mounted internal SAS cable K410 335 00 is necessary SAS cable K410 168 02 K410 191 02 Device Expansion Unit Server SAS cable K410 335 00 Server Server DC Power switch check DEVICE1 DE...

Page 98: ...of connecting FAN AC power switch and DC cable when it is tedious Interface cable Device Expansion Unit Server Server Power supply2 Power supply1 DEVICE2 DEVICE1 DEVICE4 DEVICE3 A B F C G D H E J K F...

Page 99: ...mp osing two power supplies Interface cable Device Expansion Unit Server Server Power supply2 Power supply1 DEVICE2 DEVICE1 DEVICE4 DEVICE3 A B F C G D H E J K FAN1 AC1 FAN2 AC2 DC Power switch 1 Inte...

Page 100: ...tion and maintenance of the Device Expansion Unit Daily maintenance Describe the items which must be confirmed to use the Device Expansion Unit daily the file management and the cleaning methods Troub...

Page 101: ...ning off the power unit See the section Lamp Indications for the functions and displays of the lamps If the display indicating the occurrence of an error in the Device Expansion Unit appears contact y...

Page 102: ...ten them with water 1 Make sure that the power unit of the Device Expansion Unit is set to off 2 Unplug the power cord of the Device Expansion Unit from the power outlet then unplug the SAS interface...

Page 103: ...hen you find the relevant symptom from the list make the confirmations and actions following the symptom If the Device Expansion Unit still operates improperly write down the message appearing on the...

Page 104: ...to the Device Expansion Unit Accessing to 5 25 in devices is disabled Are cables connected properly Make sure that interface cables and power cords are connected securely Are 5 25 inch devices availa...

Page 105: ...ription on pages vi through xvii for details Do not lift the Device Expansion Unit only by yourself Make sure to complete cable and option installations Do not install the Device Expansion Unit leavin...

Page 106: ...sing a virus detection program on the market Make a backup copy of the important data saved in the hard disk If the above processing cannot resolve the error do not conduct further processing but cont...

Page 107: ...N8141 75F 2U Device Expansion Unit User s Guide First Edition...

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