Microsoft, Windows, Windows NT, and MS-DOS are registered trademarks of Microsoft Corporation in the United
States and other countries.
NetWare is a registered trademark of Novell, Inc. of the U.S.
All other product, brand, or trade names used in this publication are the trademarks or registered trademarks of
their respective trademark owners.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications.
This product may be affected by a momentary voltage drop caused by lightning. To prevent a
momentary voltage drop, an AC uninterruptible power supply (UPS) unit should be used.
Page 3
ご注意
(1) 本書の内容の一部または全部を無断転載することは禁止されています。
(2) 本書の内容に関しては将来予告なしに変更することがあります。
(3) NEC の許可なく複製・改変などを行うことはできません。
(4) 本書は内容について万全を期して作成しましたが、万一ご不審な点や誤り、記載漏れなどお気づきのこと
がありましたら、お買い求めの販売店にご連絡ください。
(5) 運用した結果の影響については(4)項にかかわらず責任を負いかねますのでご了承ください。
Notes:
(1) No part of this manual may be reproduced in any form without the prior written permission of NEC
Corporation.
(2) The contents of this use's guide may be revised without prior notice.
(3) The contents of this User's Guide shall not be copied or altered without the prior written permission of NEC
Corporation.
(4) All efforts have been made to ensure the accuracy of all information in this User's Guide. If you notice any
part unclear, incorrect, or omitted in this User's Guide, contact the sales agent where you purchased this
product.
(5) NEC assumes no liability arising from the use of this product, nor any liability for incidental or consequential
damages arising from the use of this User's Guide regardless of Item (4).
なお、本書は和英併記となっております。日本語での説明は i ページから 39 ページを、英語
での説明は i ページから xxii ページおよび、40 ページから 74 ページを参照してください。
ABOUT THIS USER' S GUIDE
This User's Guide is intended to help the user install and use the N8191-09 server switch unit properly.
When encountering any questions and troubles in daily use of the N8191-09 server switch unit, use
this guide and also refer to safety precautions in it.
Keep this User's Guide near the N8191-09 server switch unit so that you can read it at any time you
need.
This User's Guide is written in both Japanese and English. For Japanese, refer to pages i to 39. For
English, refer to pages i to xxii and 40 to 74.
Symbols Used in This User's Guide and Warning Labels......................................................................................iii
Notes on Safety......................................................................................................................................................iv
Check of Accessories...............................................................................................................................................xxii
Transfer to Third Party ............................................................................................................................................xxiii
1. Setting Up the Server Switch Unit...........................................................................................40
FEATURES OF SERVER SWITCH UNIT...............................................................................................................40
Names and Functions of Components........................................................................................................................41
Front View (Console Panel Side)..........................................................................................................................41
Installation of Rack...............................................................................................................................................44
Connecting with Eight or Less Servers.................................................................................................................50
Connecting with Nine or More Servers................................................................................................................52
Connecting with N8191-05...................................................................................................................................54
Connecting the Server Switch Unit with UPS............................................................................................................55
Settings for the Mouse on RedHat Linux 7.2.............................................................................................................55
2. Using the Server Switch Unit ................................................................................................. 56
Switch of Server Switch Unit.....................................................................................................................................56
Selection of Server by Server Selection Switch (Normal Mode)..........................................................................56
Selection of Server on Keyboard (Hot Key Mode)...............................................................................................57
Display/Hide the Server Name...................................................................................................................................64
3. Maintaining the Server Switch Unit ....................................................................................... 65
Relocation and Storage of Server Switch Unit...........................................................................................................71
User Support ..............................................................................................................................................................72
Before Having the Unit Repaired..........................................................................................................................72
When Having the Unit Repaired...........................................................................................................................73
Read this "Safety Precautions" and separately provided User's Guide thoroughly before getting started
to use this device safely. After you have read this brochure, store it in the place that is easy to access.
SAFETY PRECAUTIONS
This section describes the information necessary to use the server switch unit safely.
Safety Indications
Follow the instructions described in this User's Guide for your safety to use the server switch unit.
The server switch unit contains components with possible danger, hazards that may cause by ignoring
warnings, and preventive actions against such hazards.
Server switch unit components with possible danger are indicated with a warning label placed on or
around them as well as described in this User's Guide.
In the User's Guide or warning labels, "WARNING" or "CAUTION" is used to indicate a degree of
danger. These terms are defined as follows:
This symbol indicates that using the product improperly in defiance of this
WARNING
CAUTION
symbol is likely to result in death, serious injury, fire, or damage to the
device and peripherals.
This symbol indicates that using the product improperly in defiance of this
symbol may result in injury or only damage to property.
Precautions and notices against hazards are presented with one of the following three symbols.
The individual symbols are defined as follows:
Attention This symbol indicates the presence of a hazard if the instruction is
Prohibited
Action
Mandatory
Action
ignored.
An image in the symbol illustrates the hazard type.
This symbol indicates prohibited actions. An image in the symbol
illustrates a particular prohibited action.
This symbol indicates mandatory actions. An image in the symbol
illustrates a mandatory action to avoid a particular hazard.
- ii -
Page 9
本書および警告ラベルで使用する記号
注意の喚起
感電のおそれがあることを示します。
指などが挟まれるおそれがあることを示
します。
特定しない一般的な注意・警告を示しま
す。
高温による損害を負うおそれがあるこ
とを示します。
発煙または発火のおそれがあることを
示します。
行為の禁止
特定しない一般的な禁止を示します。
本装置を分解・修理・改造しないでくだ
さい。感電や火災のおそれがあります。
行為の強制
本装置の電源プラグをコンセントから抜
いてください。火災や感電のおそれがあ
ります。
特定しない一般的な使用者の行為を指
示します。説明に従った操作をして下さ
い。
Symbols Used in This User's Guide and Warning Labels
Attentions
Indicates the risk of electric shock.
Indicates the risk that your fingers may
be caught.
Indicates a general notice or warning
that cannot be specifically identified.
Prohibited Actions
Indicates the notification of general
prohibition.
Mandatory Action
Unplug the AC cord of the server switch
unit. Otherwise, an electric shock or fire
may be caused.
Indicates the risk of an injury due to high
temperature.
Indicates the risk of smoke emission or
fire outbreak.
Do not disassemble, repair, or modify
the server switch unit. Otherwise, an
electric shock or fire may be caused.
Indicates a mandatory action that
cannot be specifically identified. Make
sure to follow the instruction.
To enable you to use the server switch unit safely, read the notes described below carefully to
understand them. See "Safety Indications" described earlier for the descriptions of symbols.
The server switch unit is not intended to be used with or control facilities or devices
WARNING
Do not use the server switch unit for services involving human lives or requiring
igh reliability. h
concerning human lives, including medical devices, nuclear facilities and devices,
aeronautics and space devices, transportation facilities and devices; and facilities
and devices requiring high reliability. NEC assumes no liability for any accident
resulting in personal injury, death, or property damage if the server switch unit has
een used in the above conditions. b
Do not use the server switch unit in any unapproved place.
You can install the server switch unit on a standard EIA 19-inch rack assembly
using a general-purpose tray.
Do not install the rack containing the server switch unit in a place inapprop riate to
the rack installation environment.
Failure to follow these instructions may cause some bad influences to be imposed
on the server switch unit and other systems installed on the rack and also a fire o r
personal injury 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 attached to the rack or contact you
ervice representative. s
Do not install the server switch unit on a rack not conformed to the relevant
tandard. s
You can install the server switch unit on a rack conforming to the EIA standard
using a general-purpose tray.
Do not use the server switch unit with installed on any other rack than standard EIA
19-inch rack. Failure to follow these instructions may cause personal injury or
damages of surrounding devices due to falling of the unit. Contact your service
epresentative for the racks available for the server switch unit. r
Do not use the server switch unit if any smoke, odor, or noise is present.
If smoke, odor, or noise is present, immediately disconnect the AC cord from the
outlet. Then contact your service representative. Using the server switch unit in
uch conditions may cause a fire. s
Keep needles or metal objects away from the server switch unit.
Do not insert needles or metal objects into the server switch unit. Doing so may
ause an electric shock. c
CAUTION
Keep water or foreign matter away from the server switch unit.
Do not let any form of liquid (water etc.) or foreign matter (e.g., pins or paperclips)
enter the server switch unit. Failure to follow this warning may cause an electric
shock, a fire, or a failure of the unit. When such things accidentally enter the server
switch unit, immediately turn off the power and disconnect the AC cord from the
outlet. Do not disassemble the server switch unit. Contact your service
n コード部分を引っ張らない。
n コードをはさまない。
n コード部分を折り曲げない。
n ACケーブルに薬品類をかけない。
n コード部分をねじらない。
n ACケーブルにものを載せない。
n コード部分を束ねない。
n ACケーブルを改造・加工・修復しない。
n コードが損傷したら使わない。(コードが損傷したらすぐに新しいACケーブル
Plug in to a proper power source.
Use a proper wall of specified voltage and current. Use of an improper power
source may cause a fire or a power leak.
Do not install the server switch unit where you need an extension cord. Use of a
cord that does not meet the power specifications of the server switch unit may heat
up the cord and cause a fire.
Do not connect the power cord to an outlet that has an illegal number of
connections.
The electric current exceeding the rated flow overheats the outlet, which may cause
a fire.
Do not connect the power cord to an outlet that has an illegal number of
onnections. c
The electric current exceeding the rated flow overheats the outlet, which may cause
a fire.
Plug the AC cord into the outlet as far as it goes.
Heat generation resulting from a halfway inserted AC cord (imperfect contact) may
cause a fire. Heat will also be generated if condensation is formed on dusty blades
of the halfway inserted plug, increasing the possibility of fire.
Use the authorized AC cord only.
Use only the proper AC cord that comes with the server switch unit. Use of an
unauthorized AC cord may cause a fire when the electric current exceeds the ra ted
flow. AC cord for Japan (100 VAC) is provided with the server switch unit. Do not
use the provided AC cord in any other country than Japan.
Also, observe the following to prevent an electric shock or fire caused by a
damaged AC cord.
n Do not stretch the cord harness.
n Do not pinch the power cord.
n Do not bend the power cord.
n Keep chemicals away from the AC cord.
n Do not twist the power cord.
n Do not place any object on the AC cord.
n Do not bundle power cords.
n Do not alter, modify, or repair the AC cord.
n Do not use any damaged power cord. (Replace a damaged AC cord with a new
one of the same specifications. Ask your service representative for replacement.)
Do not carry or install the rack only by a single person.
At least two persons are required to carry or install the rack. Failure to follow this
instruction may cause the rack to fall to result in personal injury and/or breakage of
surrounding devices. In particular, a high rack (such as 44U rack) is unstable if it is
not fixed by stabilizers. At least two persons must always carry or install the rack
while they support it.
Do not install the rack so that the load may be concentrated on a specific point.
Install stabilizers on the rack or earthquake-resistant construction to the rack so that
the total load of the rack and devices mounted on the rack is not concentrated on a
single point. Join the racks in multiple-rack installations to distribute the load.
Failure to follow this instruction may cause the rack to fall to result in personal
injury.
Do not install components on the rack only by yourself.
At least two persons are required to install parts including the doors and trays for
the rack. Failure to follow this instruction may cause some parts to fall to be broken
and/or to result in personal injury.
Do not leave more than one device being pulled out from the rack.
Pulling out more than one device from the rack may cause the rack to be fallen.
Only pull out a single device from the rack at a time.
Do not provide the wiring for the rack to exceed the rating of the power supply.
To prevent burns, fires, and device damages, the power supplied to the power
supply in the rack shall not exceed the rating load of the power branch circuit.
Contact the power constructor or local power company for the requirements on the
wiring and installation of electric facilities.
n ケーブルを履まない。
n ケーブルの接続がゆるんだまま使用しない。
n ケーブルの上にものを載せない。
n ネジ止めなどのロックを外したまま使用しない。
注意
- xi -
Page 18
Installation, Relocation, Storage, and Connection
CAUTION
Do not install the server switch unit in any other place than specified.
Do not install the server switch unit in the following places or any other places than
specified in this User's Guide. Failure to follow this instruction may cause a fire.
n a dusty place
n a humid place such as near a boiler
n a place exposed to direct sunlight
n an unstable place
Do not connect any interface cable to the server switch unit with the server being
powered or the AC cord being connected.
Make sure to power off the server and unplug the AC cord from an outlet before
connecting/disconnecting the interface cable. If the server is off-powered but its AC
cord is plugged to a power source, touching the cable may cause an electric shock
or a fire resulted from a short circuit.
Do not use any unauthorized interface cable.
Use only interface cables specified by NEC and locate a proper device and
connector before connecting a cable. Using an unauthorized cable or connecting a
cable to an improper destination may cause a short circuit, resulting in a fire.
Also, observe the following notes on using and connecting an interface cable.
nDo not use any damaged cable connector. Before connecting an interface cable,
confirm that any cable connector is not damaged and any connector pin is not
bent or dirt.
n Do not step on the cable.
n Do not use the server switch unit with loose cable connections.
n Do not place any object on the cable.
n Do not disable the locking mechanism of the connectors.
Do not disassemble, repair, or alter the server switch unit.
Do not attempt to disassemble, repair, or alter the server switch unit. Failure to
follow this instruction may cause an electric shock or fire as well as malfunctions of
the unit.
Disconnect the AC cord before cleaning the server swit ch unit.
Make sure to power off the server and disconnect the AC cord from a power outlet
before cleaning. Touching any connectors with the server's power being on or with
the AC cord being connected to a power source may cause an electric shock or a
fire due to short circuit.
Also, disconnect the AC cord 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
Make sure to complete cable and AC cord installations.
Always install the AC cord and an interface cable firmly. An incomplete installation
may cause a contact failure, resulting in smoking or fire.
During Operation
Do not touch the server switch unit when it thunders.
Disconnect the AC cord from the outlet when a thunderstorm is approaching. If it
starts thundering before you disconnect the AC cord, do not touch any part of the
server switch unit including cables. Failure to follow this warning may cause a fire or
an electric shock.
Do not use a cellular phone or pager around the server switch unit.
Turn off the cellular phone or pager around the server switch unit. Radio
interference may cause malfunctions of the server switch unit.
Keep any animal (pet) away from the server switch unit.
Pet's discharges or fur may enter the server switch unit and cause a fire or electric
shock.
The warning label is attached to components with possible danger or their vicinity in the server switch
unit to inform the user that a hazardous situation may arise when operating the unit (do not take off
any label or soil it). If you find any label unattached, almost peeled off, or soiled, making the warning
illegible, contact your service representative.
Observe the following notes for successful operation of the server switch unit. Use of the server
switch unit ignoring the notes will cause malfunctions or failures of the unit.
n Make sure to power off the server switch unit and disconnect the AC cord from the power outlet
before connecting or disconnecting cables.
n Check to see that the Server Online lamp goes off and unplug the power cord from the outlet
before relocating the server switch unit.
n Clean the server switch unit on a regular basis (see Chapter 3). Regular cleaning proactively
prevents various failures of the unit.
n Lightning may cause a momentary voltage drop. To prevent this problem, it is recommended
to use an uninterruptible power supply.
n Use the keyboard and mouse which you purchased as components in the NEC Express5800
server system to connect them with the server switch unit. Using any other unauthorized
keyboard and mouse cause failures of the unit as well as a malfunction of the unit.
n Do not press two or more switches simultaneously. Doing so may cause a malfunction of the
unit.
n Use only the AC cord that comes with the server switch unit. Use of an unauthorized AC cord
may cause a failure of the unit or a fire when the voltage exceeding the rated one is applied to
the unit.
n Use NEC's genuine interface cables for options. Repair of the unit due to a failure or damage
resulted from use of a third-party product will be charged even in the warranty period.
Welcome to our N8191-09 Server Switch Unit.
The Server Switch Unit N8191-09 is a switching device developed for the NEC Express5800 server.
With this unit, up to eight servers can be operated with one each of display unit, keyboard, and mouse
(in the cascade connection, up to 64 servers can be operated). You can easily select the desired server
using the Server Selection switch or the keyboard.
This manual is a guidance to use the unit properly. Read well the manual to operate the unit properly
and surely.
The carton of the server switch unit contains several accessories as well as the unit. Make sure that
all items listed below are provided and then inspect them. If one or more items are missing or
defective, contact your service representative.
The accessories are required for the setup of the server switch unit or the
Tips
addition of an optional device. Store them carefully.
Server switch unit (N8191-09) Notice for using N8191-09
Server Switch Unit ×1
Screw A (M5) × 8 Screw B (M3) × 10 Tie wrap × 10
Rack mount brackets (small)
× 2
Rack mount brackets (large)
× 2
User's Guide Cable clamp
Device ID label
(36 pcs. per sheet)
Shock absorbers
× 4
DIP switch setup
label ×1
These accessories are available only for using in Japan.
Tips
Do not use them in any other country than Japan.
Warranty AC Cord for Japan (100 VAC)
To transfer or sell the server switch unit or the accessories that come with the server switch unit to a
third party, make sure to provide this User's Guide together with the unit or the accessories to a third
party.
装置の廃棄について
本装置や AC ケーブル、またはオプションの専用ケーブルの廃棄については、各自治体の廃
棄ルールに従ってください。詳しくは、各自治体へお問い合わせください。
DISPOSAL
Dispose the server switch unit, provided AC cord, or optional interface cables according to all laws
and regulations of the local government.
n Express サーバや周辺装置をラックから完全に引き出せないような狭い場所。
n ラックや搭載する各装置の総重量に耐えられない場所。
n スタビライザが設置できない場所や耐震工事を施せない場所。
n 床におうとつや傾斜がある場所。
n 温度変化の激しい場所(暖房器、エアコン、冷蔵庫などの近く)。
n 強い振動の発生する場所。
n 腐食性ガスの発生する場所、薬品類の近くや薬品類がかかるおそれのある場所。
n 帯電防止加工が施されていないじゅうたんを敷いた場所。
n 物の落下が考えられる場所。
n 強い磁界を発生させるもの(テレビ、ラジオ、放送/通信用アンテナ、送電線、電磁ク
n おうとつや傾斜がある場所。
n 温度変化の激しい場所(暖房器、エアコン、冷蔵庫などの近く)。
n 強い振動の発生する場所。
n 腐食性ガスの発生する場所、薬品類の近くや薬品類がかかるおそれのある場所。
n 帯電防止加工が施されていないじゅうたんを敷いた場所。
n 物の落下が考えられる場所。
n 強い磁界を発生させるもの(テレビ、ラジオ、放送/通信用アンテナ、送電線、電磁ク
This section describes the main features and part names of the server switch unit. Also describes the
installation and handling of the server switch unit.
FEATURES OF SERVER SWITCH UNIT
n The connection of multiple servers to the server switch unit contains the servers with a single
console (including monitor, keyboard, and mouse) while each server has been connected with a
dedicated console. This greatly saves the installation space.
n Only a single server switch unit enables you to select a specific server from up to eight servers.
n The cascade connection of up to nine server switch units enables a server to be selected from up
to 64 servers.
n The server switch unit may be mounted on a standard 19-inch rack in space with height of 1U.
n If the server switch unit is mounted on a rack, the unit can be connected with servers smoothly
on the rack because the console panel is separated from the rear panel (or the main unit).
n The server switch unit is equipped with a dedicated control microprocessor (MPU) for each of
all the ports (including keyboard, mouse and each server ports). Accordingly, the keyboard
and mouse states of each server (including the key code mode, the Num, Caps, and Scroll states,
and the mouse output mode) are monitored by the MPUs for the ports, respectively. This
always brings the stable switching of a server to another.
n The server switch unit is equipped with the power voltage monitoring circuit, any failure of the
power supply (e.g., disconnection of AC cord or damage of internal power fuse) can be detected.
(If so, the ServerOnline lamp goes on.)
n The server switch unit may be connected with the PS/2 keyboard and mouse that came with the
NEC Express5800 server.
n The server switch unit may be connected with English or Japanese keyboard (101 to 109) that
came with the NEC Express5800 server.
n The monitor can accept the resolution of up to 1600×1200 pixels and the refresh rate of up to 75
MHz in the VGA, SVGA, or multi-sync mode.
n A server can easily be selected by using the proper Server Selection switch or the keyboard (in
the hot key mode).
n In the hot key mode, the OSD (On Screen Display) allows you to switch a server to another
while viewing the screen.
n The auto scan can be performed by using proper switches or hot keys.
n In the auto scan mode, the activated servers are automatically switched one by one. This
enables the status of each server to be monitored in a certain period. The switching period
may be modified in six levels on the keyboard.
n The hot key can be set by selecting one of three key entries; depression of Ctrl + Alt + Shift
keys and two successive depressions of Ctrl key or Scroll Lock key.
This allows you to avoid using a specific key sequence used in another application as the hot
key. Thus, the hot key can be utilized more effectively.
- 40 -
Page 70
NAMES AND FUNCTIONS OF COMPONENTS
The names of components of the server switch unit are shown below. Check the name and position
of each component.
Front View (Console Panel Side)
Server Selection lamp (green)
①
If a server is selected, the respective lamp goes on. In the hot key mode, the lamp blinks.
Server Online lamp (green)
②
The Server Online lamp is lit while the power of the server is being ON.
The Server Online lamp blinks when an abnormal internal voltage is detected. Check if the
AC cord is connected properly. If this lamp still blinks, the failure of server switch unit is
assumed. Contact your sales agent or service representative.
Auto Scan switch
③
Press this switch when you want to allow the screen to be scanned automatically.
Press this switch again to halt the auto scan mode.
In the auto scan mode, the Server Selection lamps blink slowly in the sequential ord er and
you cannot operate the servers.
Server Selection switch
④
Press one of the Server Selection switches to select the respective server.
You can select a server with the Server Online lamp being off.
Reset switch
⑤
The Reset switch is not used normally. This switch is used if no server can be selected or
you cannot operate the keyboard and/or mouse. Press the Reset switch with a metallic
pin.
Pressing the switch makes the server switch u nit ret urn to the initial state. The system
can be recovered to the original state without restarting the server.
- 41 -
Page 71
Rear View (Rear Panel Side)
AC connector
⑥
Used to connect the provided AC cord.
DIP Switch
⑦
Used to set key assignment for calling OSD functions, Always ON Mode, and keyboard type
(valid only for USB connection). Switch functions are assigned as follows:
SW No. Function Default setting
SW1 Enable/disable the hot key [Ctrl + Alt + Shift] ON [Enabled]
SW2
SW3
SW4 Selection of keyboard connected 1
SW5 Selection of keyboard connected 2
SW6 Selection of keyboard connected 3
SW7 Selection of keyboard connected 4
SW8 Normally power-on state OFF (linkage with power-on of the server)
JIS ON ON ON ON
US ON ON ON OFF
UK ON ON OFF ON
Germany ON ON OFF OFF
France ON OFF ON OFF
Spain ON OFF ON OFF
Sweden ON OFF OFF ON
Enable/disable the hot key [Ctrl × 2]
Enable/disable the hot key [Scroll Lock × 2]
Language Table
Country SW4 SW5 SW6 SW7
ON [Enabled]
ON [Enabled]
See Language Table below.
- 42 -
Page 72
Connector to connect with server
⑧
Through these connectors, ports 1 to 8 of the server switch unit are conn ected to the
USB/VGA interface (usin g K410-118 cable for USB connection) or keyboard/mouse/VGA
interface (using K410-119 cable for PS/2 connection).
Connecting K410-119 (1A) cable to each port and connecting the KB, Mouse, and VGA
connectors of N8191-09 server switch unit to another end of K410-119 (1A) cable allows you
to connect up to 64 servers.
KB connector
⑨
Through the KB connector, the server switch unit is connected to the keyboard of the
console.
Mouse connector
⑩
Through the Mouse connector, the server switch unit is connected to the mouse of the
console.
Console connector
⑪
Through the Console connector, the server switch unit is connected to the monitor of the
console.
- 43 -
Page 73
INSTALLATION
You may use the server switch unit by placing it on the desktop or installing it on a standard EIA
19-inch rack assembly.
Installation of Rack
Refer to the documentation attached to the rack or contact your service representative for the
installation of the server switch unit on the rack.
Follow the instructions below to install the rack assembly.
WARNING
Observe the following instructions to use the server switch unit and the other
peripherals safely. Failure to follow these instructions may result in death or
serious personal injury. See pages vi through xiv for details.
nDo not use the server switch unit in any unapproved place.
CAUTION
Observe the following instructions to use the server and the other peripherals
safely. Failure to follow these instructions may cause a fire, personal injury, or
property damage. See pages vi through xiv for details.
n Do not carry or install the rack assembly only by a single person.
n Do not install the devices where the load may be concentrated on a specific
point.
n Do not install any component on the server only by a single person.
n Do not pull out a device from the rack if the rack is unstable.
n Do not provide the wiring exceeding the rating power.
- 44 -
Page 74
Do not install the rack in the places listed below. Installing the rack or mounting the server switch
unit on the rack in such a place may cause some malfunction to occur.
n Narrow space from which devices cannot be pulled out from the rack completely
n Place that cannot bear the total weights of the rack and devices mounted on the rack
n Place where stabilizers cannot be installed or where the rack can be installed only after the
practice of proper earthquake-resistant construction
n Place of uneven or slanting floor
n Place of drastic temperature change (near a heater, air conditioner, or refrigerator)
n Place where intense vibration may be generated
n Place where corrosive gas is generated, c h emicals are nearby, or chemicals may be accidentally
sprayed over
n Place where a carpet not subject to anti-static process is laid.
n Place where some objects may be fallen on the rack
n Place near a device generating intense magnetic field (such as a TV, radio,
broadcast/communication antenna, power transmission wire, and electromagnetic crane) is
placed (If unavoidable, contact your service representative to request proper shield
construction.)
n Place where the AC cord of the server switch unit must be connected to an AC outlet that shares
the outlet of another device with large power consumption.
n Place near equipment that generates power noise (e.g., contact spark at power-on/power-off of
commercial power supply through a relay). If you must install the server switch unit close to
such equipment, request your service representative for separate power cabling or noise filter
installation.
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Installing Server Switch Unit on Rack
Mount the server switch unit on a proper rack in the following procedure:
1. Remove the console connection cable from the rear of the unit.
Remove four shock absorbers from the bottom of the unit (if installed).
2. Remove the four flat head screws on the left or right end of the console panel. (Keep the
screws for future use.)
3. Remove the console panel from the unit and install the smaller rack mount bracket to the both
sides of the console panel by using screw B (two screws each).
Switch side
4. Install the large rack mount bracket on the rear panel with attached screw B (three screws
each).
Rear panel side
The larger rack mount bracket has five screw holes to fit the depth of the rack.
Tips
Install the larger rack mount bracket according to its depth.
5. Install the four core nuts coming with the rack at the positions where the console panel and
rear panel are mounted. See the operation manual attached with the rack to install the core
nuts.
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A
6. InstallFix the console panel on the front side of the rack with attached screw A (four screws).
Console panel
Front side of the rack
7. Fix the rear panel on the rear side of the rack with attached screw A (four screws).
Rear panel
Rear side of the rack
8. Connect the console panel connection cable connected to the bottom at the rear side to the
console panel.
9. Put the attached cable clamp at any location of the back side of the server switch unit and
then fix the operation panel connection cable so that it may not be loosen.
Important: When the cable is fixed, note that excess tension may not be
Notice
applied to the connector .
djust the cable length
using the cable clamp.
Console panel connection cable
This portion should not be slackened.
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Installing the Server Switch Unit on Desktop
Do not install the server switch unit in an area fitting to any of the conditions listed below. Installing
the unit in such an area may cause some malfunction to occur.
n A place of uneven or slanting floor
n A place of rapid temperature change (near a heater, air conditioner, or refrigerator)
n A place in which intense vibration may be generated
n A place in which corrosive gas is generated, near which chemicals are placed, or in which
chemicals may be splashed to the server switch unit
n A place on which a carpet not subject to anti-static process is laid
n A place in which some objects may be fallen on the server switch unit
n A place near which a device generating intense magnetic field (such as a TV, radio,
broadcast/communication antenna, power transmission wire, and electromagnetic crane) is
placed (If unavoidable, ask your service representative to provide proper shield construction.)
n A place in which the AC cord of the server switch unit must be connected to an AC outlet of the
line shared with another earth line (for a device of large power consumption in particular)
n A place near which a device generating power noise (including contact spark occurring at
turning on/off the commercial power by relay) is placed
(To install the server switch unit near a device generating power noise, ask your service
representative to separate the power line from the device or install proper noise filters.)
Attach four rubber feet (shock absorber) to the bottom of the server switch unit
when installing it on the desktop, as shown in the figure below.
Tips
Rear panel side
Front panel side
Shock absorbers
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CABLE CONNECTION
The server switch unit can be connected with one each of display unit, keyboard, and mouse, and up to
eight servers. Using nine server switch units (maximum configuration) in cascade connection, up to
64 servers can be selected.
The server switch unit is connected with a server through the K410-118 or K410-119 cable sold
separately.
The K410-118 cable has a USB connector and a display connector on one end, and D-Sub 15-pin
connector on the other end. The K410-119 cable has a PS/2 connector (for keyboard and for mouse,
in pair) and a display connector on one end and D-Sub 15-pin connector on the other end.
The server switch unit is connected with display unit, keyboard, and mouse directly or through the
K410-104 cable sold separately for extension.
CAUTION
Do not connect any interface cable with the server being powered or the AC cord
being connected.
Make sure to power off the server and unplug the AC cord from an outlet before
connecting/disconnecting the interface cable. If the server is being powered or the
AC cord is plugged to a power source, touching the cable may cause an electric
shock or a fire resulted from a short circuit.
Do not use any unauthorized interface cable.
Use only interface cables specified by NEC and locate a proper device and
connector before connecting a cable. Using an unauthorized cable or connecting
a cable to an improper destination may cause a short circuit, resulting in a fire.
Also, observe the following notes on using and connecting an interface cable.
nDo not use any damaged cable connector. Before connecting an interface
cable, confirm that any cable connector is not damaged and any connector pin i s
not bent or dirt.
n Do not step on the cable.
n Do not use the server switch unit with loose cable connections.
n Do not place any object on the cable.
n Do not disable the locking mechanism of the connectors.
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Connecting with Eight or Less Servers
Connect the cables to the server switch unit in the following procedure. (The figure below shows an
example of the server switch unit installed in the rack with eight servers connected.)
1. Connect the keyboard/mouse connector and display connector of the first server through the
dedicated cable (K410-118 or K410-119). First connect the cable to the connector on the
server switch unit. (Connect in the order of and .)
It is recommended to attach the Device ID Label to the cable with destination
Tips
device name filled in. It is useful when relocating or cleaning the unit.
Use the dedicated cables listed below to connect the server switch unit with the server.
Name Part Number Remarks
Server switch unit USB
connection cable set (1.8
m)
Server switch unit USB
connection cable set (3.0
m)
Server switch unit USB
connection cable set (5.0
m)
Server switch unit PS/2
connection cable set (1.8
m)
Server switch unit PS/2
connection cable set (3.0
m)
Server switch unit PS/2
connection cable set (5.0
m)
K410-118(1A) Used to connect the server to the server
switch unit via USB connection.
K410-118(03) Used to connect the server to the server
switch unit via USB connection.
K410-118(05) Used to connect the server to the server
switch unit via USB connection.
K410-119(1A) Used to connect the server to the server
switch unit via PS/2 connection. Always
use this cable between master and slave
sides in cascade connection.
K410-119(03) Used to connect the server to the server
switch unit via PS/2 connection.
K410-119(05) Used to connect the server to the server
switch unit via PS/2 connection.
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2. Provide the cable connections for the second to eighth servers.
Connect the interface cable to the server switch unit side first, then the server
4
Check
side.
3. When all servers are connected to the server switch unit, connect the keyboard, the mouse,
and the display unit to KB, MOUSE, and CONSOLE connectors (③ in the figure above).
4. At last, connect the power cords of the servers and display unit and the AC cord of the server
switch unit to AC outlets (④ in the figure above).
Fix the cable of the AC cord with the attached tie wraps to the rack mount
4
Check
bracket (large) or an appropriate location on the rack to prevent it from being
disconnected.
5. Fix the cables to the rack with the attached tie wraps.
6. After confirming that all the connections are valid, start the servers sequentially.
Select each of the servers to check that it is started normally and set correctly.
7. If the keyboard, mouse, and/or display monitor are not set correctly, set and start each device
again.
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Connecting with Nine or More Servers
You can add another server switch unit by connecting the dedicated connection cable (K410-119 (1A))
to each port of the server switch unit. Such the connection is called cascade connection. With nine
server switch units (maximum configuration) in cascade connection, you can select up to 64 servers.
In cascade connection, the installation area can be greatly reduced since it requires only one console.
The server switch unit with which the console is connected is called "master", and the ones connected
to each port of the master unit are called "slave".
A sample connection is shown below in which the server switch unit is installed on the rack and 15
servers are connected in cascade.
8888888
66666666
55555555
4
8
8
8
77
7
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1. Connect the seven servers to the ports 1 through 7 of the master side according to the
procedures in "Connecting Eight or Less Servers" described earlier. (Connect in order of
① and ②.)
AC cords for the server switch unit, the servers, and the console must be connected later.
2. Connect the connector on the port 8 of the master side to the KB, Mouse, and CONSOLE
connectors on the console port of the slave unit with dedicated cable (K410-119(1A)).
Connect the slave side first. (Connect in order of ③ and ④.)
3. Connect the eight servers to the slave side according to the procedures in "Connecting Eight
or Less Servers" described earlier. (Connect in order of ⑤ and ⑥.)
If you want to add more slave units, repeat steps 1 through 3 described above.
Tips
Use the port 7, 6, 5, ..., 1 of the master unit in order when adding the slave
unit.
The server switch unit of the slave side cannot connect with another (the third)
Notice
slave unit.
4. After completing the connection of the server switch unit with servers, connect the keyboard,
mouse, and display unit to the KB, MOUSE, and CONSOLE connectors on the master unit.
(Connect ⑦ in the figure above.)
5. At last, connect the power cords of the servers and the display unit and the AC cord of the
server switch unit to AC outlets. (Connect ⑧ in the figure above.)
6. Fix the dedicated cables and AC cords with the attached tie wraps.
7. After confirming that all the connections are valid, start the servers sequentially.
8. Select each of the servers to check that it is started normally and set correctly.
If the keyboard, mouse, and/or display monitor are not set correctly, set and start each device
again.
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Connecting with N8591-05F
When connecting with nine or more servers, N8591-05F can be used with this server switch unit. In
such a case, some features are disabled or restricted depending on:
n When N8591-09 is used as master unit
n When N8591-05F is used as master unit
n Version of N8591-05F (number indicated on FR label on top of the unit)
See the table below for disabled or restricted features.
Function Description
No. of characters displayed on OSD Number of characters that can be displayed on OSD screen
Stationary display feature Feature to always display the server name on the upper left
corner of the screen.
Quick selection feature Feature to select the desired server by pressing the Server
Selection switch on the slave unit. This feature is available
in cascade connection.
OSD port switching Feature to select the desired server on OSD screen by
pressing the Server Selection switch on the front panel.
The table below shows the available combination of server switch units.
Connection pattern Restricted feature
No.
N8591-05F FR12 N8591-05F FR12 6
1
N8591-05F FR12
N8591-05F FR13 or later N8591-05F FR12 14
N8591-05F FR13 or later
N8591-05F FR12 N8191-09 8
2
N8591-05F FR13 or later N8191-09 14
N8191-09 N8591-05F FR12 14
3
N8191-09
4 N8191-09 N8191-09 14
Master Slave
N8591-05F FR13 or
later
N8591-05F FR13 or
later
N8591-05F FR13 or
later
No. of OSD
characters
8
14
14
Stationary
display
× × ×
× × ×
× × ×
√ × ×
× × ×
√ × ×
× × √
√ √ √
√ √ √
Quick
selection
OSD port
switching
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CONNECTING THE SERVER SWITCH UNIT WITH UPS
It is recommended that, if the power of the servers connected to the server switch unit is supplied from
a UPS (uninterruptible power supply), the power of the server switch unit is supplied from the UPS.
SETTINGS FOR THE MOUSE ON REDHAT LINUX 7.2
When connecting the server switch unit to the server on which RedHat Linux 7.2 is installed via the
dedicated cable K410-118, RedHat Linux 7.2 may fail to detect the mouse device.
In such a case, change the settings of RedHat Linux 7.2 as described below.
1. Check if the symbolic link for the device has been created on the shell prompt.
(Enter the underlined character strings.)
[root@localhost]# ls -l /dev/mouse
If the message "No such file or directory" is displayed, create the symbolic link as shown
below.
2. Create the symbolic link for mouse device.
[root@localhost]# cd /dev
[root@localhost]# ln -s input/mice mouse
You need to log in the system as the user with administrator authority (root) to
Tips
create the symbolic link.
<Enter>
<Enter>
<Enter>
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This section describes the fundamental operations of the server switch unit.
SWITCH OF SERVER SWITCH UNIT
You can select a specific s erver in two ways, the use of the Server Selection switch and the use of the
keyboard (hot key mode). If the power of the selected server is turned off, the selection remains
unchanged. If so, use the Server Selection switch or the hot key to switch to the server you desire.
Selection of Server by Server Selection Switch (Normal Mode)
Press the Server Selection switch of the server which you desire. Then the server is selected. The
Server Selection lamp of the server goes on. When the server is selected, the name of the selected
server is displayed on the upper left of the screen for about three seconds. In the cascade connection,
you can select the server by pressing the switch on the desired slave unit, or pressing the switch on the
master side and then pressing the switch on the slave side.
If you press the Auto Scan switch, then the Server Selection lamps blink at a slow rate and the screen
display is automatically switched in a certain period. At that time, the console displays the switching
period. To modify the switching rate, press the ↑ or ↓ key. Pressing the ↑ key allows the switching
rate to be faster, while pressing the ↓ key enables the switching rate to be slower. Whenever you
press either of the ↑ and ↓ keys, you can select the switching period among 3, 5, 10 (initial value), 20,
40 and 60 seconds. Any server with the power being off is skipped. During the auto scan, any key
entries to the servers and mouse operations are unavailable. Before the server switch unit can be
moved to the hot key mode, the auto scan mode must be terminated.
The auto scan can be terminated by either of the following methods:
Press the Auto Scan switch or the Enter key. Then the screen is switched to that displayed currently.
Press the Esc key. Then the server selected at the start of the auto scan is selected again.
The Auto Scan function is unavailable while the server is booting. If you
Notice
erroneously pressed the Auto Scan key, cancel the auto scan, and select every
server using the Server Selection key.
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Selection of Server on Keyboard (Hot Key Mode)
In the hot key mode, you can select a server on the keyboard in one of the following procedures:
n Press the Ctrl, Alt, and Shift keys simultaneously.
n Press the Scroll Lock key twice quickly.
n Press the Ctrl key twice quickly.
You cannot enter the hot key mode if the key entry is being disabled (e.g., while
Notice
4
Check
OS is starting up). Wait until the key entry to the server is available, and retry
to enter.
If any key is pressed during OS startup, the Server Selection switch on the
console panel is also disabled. Press the Reset switch to restart the server
switch unit, and press the Server Selection switch once again.
The hot key mode is enabled while the settings of the DIP switch 1 to 3 is ON.
If you can't operate the hot key feature, check the settings of the DIP switch.
In the hot key mode, the display of the selected server appears on the screen by OSD (On Screen
Display). Whether the cascade connection is provided, the Server Selection lamps on the master unit
changes from lighting to fast blinking.
The Server Selection lamp of the second unit remains on without blinking.
In the hot key mode, you can only perform the operation on the keyboard and cannot select a server by
using the Server Selection switch.
(1) When the server switch unit is entered into the hot key mode by pressing the Ctrl + Alt +
Shift keys simultaneously or pressing the Scroll Lock key twice:
If you press the Ctrl, Alt, and Shift keys simultaneously or press the Scroll Lock key twice
to enter the server switch unit into the hot key mode, the following screen display appears.
Example of On-Screen Display (The actual display may differ from this.)
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a) Description of screen
1. The status of the server switch unit appears on the center left side of the screen (or the area of
black background).
2. The status of the slave unit subject to the cascade connection to the master unit appears on the
center right side of the screen (or the area of blue background).
The status is only displayed in the cascade connection.
3. The character strings with purple background indicate the servers which may be selected now
by the cursor key.
4. The key operation is described simply at the bottom of the screen.
The server marked by
5.
is now selected.
6. The server with green numerals (1 to 8 for master unit, or F1 to F8 for slave unit) indicates
that the server is powered on.
7. The display of OSD screen will change to either of the following depending on whether the
port selected on master side is connected in cascade or not.
n When the selected port is not in cascade connection, 14 characters are displayed on master
side and no indication is displayed on slave side. (The OSD screen is the same as that of
non-cascade connection.)
n When the selected port is in cascade connection, three characters are displayed on master
side and 14 characters are displayed on slave side.
OSD when the port is cascade connection is selected
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8. Pressing the Shift key while the OSD screen is displayed in a cascaded configuration, will
toggle the number of characters displayed for the master server switch unit from 3 characters
to 14 characters. Releasing the key will return to the original display.
Display examples when the port of master side in cascade connection (shown to left)
and the port of the slave side is selected (shown to right)
During the Shift key is pressed, any other key entries are disabled.
Notice
If nine or less characters are registered for slave side though up to 14
characters can be registered, (lower five digits are blank, as shown in example
of port 2 in the figure above) the server name of the slave side will not be
displayed when the Shift key is pressed to display the server name of master
side.
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b) Server switching procedure on OSD screen
1. Select a port of the server switch unit on the left side of the OSD screen by using cursor keys
(↑ and ↓).
2. In the cascade connection, the status of the server switch unit subject to the cascade
connection appears on the right side of the screen depending on the selected ports.
3. If you press the cursor key → in the cascade connection, the character string in the cascade
state display section on the right side of the screen is displayed purple to make it valid. If you
press the cursor key ←, the pointer returns to the left side of the screen.
4. Use the cursor keys ↑ and ↓ similarly to select a port.
5. Press the Enter key to switch a server to another actually. After the switching, the name of
the server newly selected appears at the upper left corner of the screen for about three
seconds. Press the Esc key to exit from the hot key mode without the switching.
[Selection Using the Server Selection Switch]
The selected server can be changed using the Server Selection switch on the server switch
unit even while the OSD screen is displayed.
[Direct selection]
You can select a server by pressing the proper one of the 1 to 8 keys. In the cascade
connection, select the master side by pressing the proper one of the 1 to 8 keys and the slave
side by pressing the appropriate one of the F1 to F8 keys.
The key operation enables the screen display to be switched from one to another directly.
The proper switching allows the server switch unit to exit from the hot key mode.
[Auto Scan mode]
If you press the 0 (zero) key, then the Server Selection lamps blink at a slow rate and the
screen display is automatically switched in a certain period. At that time, the console
displays the switching period. To change the switching rate, press the ↑ or ↓ key. Pressing
the ↑ key allows the switching rate to be faster, while pressing the ↓ key enables the
switching rate to be slower. Whenever you press either of the ↑ and ↓ keys, you can select
the switching period among 3, 5, 10 (initial value), 20, 40 and 60 seconds. Any server with
the power being off is skipped. During the auto scan, any key entries to the servers and
mouse operations are unavailable. Before entering the hot key mode, the auto scan mode
must be terminated.
The auto scan mode is terminated by either of the following methods:
n Press the Auto Scan switch or the Enter key. Then the screen is switched to that
displayed currently.
nPress the Esc key. Then the server selected at the start of the auto scan is selected again.
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C) Registration or change of server name
1. Select the server whose name is to be registered or changed in the same way as the switching
of a server to another by using the cursor keys.
2. Press the Tab key.
3. The color of the character string is changed to yellow but only a single character has the
yellow background.
4. Enter the name on the keyboard and press the Enter key. Then the name is registered or
changed.
Press the Del key to delete the single character at which the cursor is located. Press the
Back Space key to move the cursor backward. Press the Esc key to halt the registration.
Then the display returns to the screen having appeared before the registration is started.
5. Up to 14 characters can be used for server name.
Registration of server name (master side) Registration of server name (slave side)
Change of server name (master side) Change of server name (slave side)
(The screen is similar in the standalone unit, however, the indications in blue are not displayed.)
Press TAB key to
register the entry.
Press TAB key to
register the entry.
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D) Setting of console information
1. Select and start one of the servers on port 1 through 8.
2. Press the Ctrl + Alt + Shift key or press Scroll Lock key twice to display the OSD screen.
3. Press the N key to enter into the customer mode.
4. If you press the Enter key, the background color of EDIT SET on the screen changes to
purple.
5. Make sure that the background color of EDIT SET returns to blue, and then the [PnP
Monitor] or [Default Monitor] is displayed on the screen.
6. Press the P key to exit the customer mode, and then press Esc key to exit the OSD.
7. Restart the all servers connected to the server switch unit.
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2) When the server switch unit enters the hot key mode by pressing the Ctrl key twice:
If you press the Ctrl key twice quickly to enter the server switch unit into the hot key mode,
the OSD display appears at the upper left corner of the screen.
a) Description of screen
1. The status of the server switch unit appears by the OSD display at the upper left corner of the
screen.
2. Before the switching, the character background is displayed red.
3. After the switching, the character background is displayed blue, the connection is completed,
and the operation is terminated in the hot key mode. After about three seconds, the OSD
display disappears.
b) Server switching procedure
The screen display may be switched to another by pressing the numeric key of the desired
server when the background of characters is displayed red.
You can switch a server to another by pressing the proper one of the 1 to 8 keys. In the
cascade connection, select the master side by pressing the proper one of the 1 to 8 keys and
the slave side by pressing the appropriate one of the F1 to F8 keys.
The key operation enables the screen display to be switched from one to another directly.
The proper switching allows the server switch unit to exit from the hot key mode.
If the character background is displayed red, you cannot provide any key entry or mouse
operation for the server.
To change the screen display to that with blue character background (or to terminate the hot
key mode), press the proper number, Esc, or Enter key.
If you press the 0 (zero) key on the screen with red character background, the mode of the
server switch unit is changed to the auto scan mode. The auto scan mode is terminated by
either of the following methods:
Press the Auto Scan switch or the Enter key. Then the screen is switched to that displayed
currently.
Press the Esc key. Then the server selected at the start of the auto scanning is selected.
For the on-screen display, non-interlace video signals are recommended.
Tips
Notice
(However, interlace signals having resolution of 1152×864, 1280×1024, or
1600×1200 can be displayed on the screen properly. Interlaced signals of
lower resolution may extend outside the visible screen.)
The Auto Scan and Hot Key are disabled duri ng server startup. If you
erroneously pressed the Auto Scan key, cancel the Auto Scan mode, and
select all servers with Server Selection key to check if the startup processes
are in normal progress. If you execute the hot key operation, press the Reset
switch of the server switch unit to restart the server switch unit.
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DISPLAY/HIDE THE SERVER NAME
The server name can be continuously displayed on the upper left corner of the screen, or
hidden.
To display the server name, press the Scroll Lock key twice while holding down the Shift
key in normal operation of the server.
To hide the server name, press the Scroll Lock key twice while holding down the Shift key
while the server name is continuously displayed.
The initial state of the server switch unit is to hide the server name.
Notice
To display the server name is disabled in hot-key mode. Pressing the Scroll
Lock key twice while holding down the Shift key does not toggle the
display/hide feature.
The display/hide feature is remained valid if any other server is selected by
OSD or Server Selection switch operation.
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This section describes how to maintain the server switch unit.
DAILY MAINTENANCE
To use the server switch unit in good condition, regularly check and maintain the unit described below.
If the server switch unit is assumed as faulty, immediately contact your service representative.
Cleaning
Clean the server switch unit on a regular basis to keep the unit in a good condition.
Observe the following instructions to use the server switch unit and the other
peripherals safely. Failure to follow these instructions may result in death or
serious personal injury. See the description on pages vi through xiv for details.
Do not disassemble, repair, or alter the server switch unit.
Disconnect the AC cord before working with the server switch unit.
WARNING
Wipe the external surfaces of the server switch unit with a dry soft cloth.
n To avoid altering the material and color of the server switch unit, do not use
Notice
volatile solvents such as thinner and benzene to clean the unit.
nThe power receptacle, the cables, the connectors on the rear panel of the
server switch unit, and the inside of the server switch unit must be kept dry.
Do not moisten them with water.
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TROUBLESHOOTING
If the server switch unit does not operate as required, check the unit based on the check list described
below before asking it for repair. If you find the item meeting the symptom in the list, follow the
check and processing described in the item.
If you cannot fine the proper item or any action cannot improve the malfunction, contact your service
representative.
The Power lamp blinks.
þ Is the AC cord connected correctly?
→ Check that the AC cord is connected to the server switch unit and an AC outlet (or UPS)
securely.
→ Check that the coating of the AC cord is not broken and the plug is not bent.
→ Check that the breaker of the AC outlet to which the AC cord is set to ON.
→ If the AC cord is connected to the UPS, check that the power of the UPS is set to ON and
the power is supplied from the UPS. Refer to the manual attached to the UPS for
details.
The keyboard and/or mouse operate incorrectly or do not operate.
þ Are the keyboard and mouse connected correctly to the keyboard and mouse connectors
on the server, respectively?
→ Check that the keyboard and mouse are connected to the proper connectors on the server.
þ Is the hot key mode released (the Server Selection lamp blinks)?
→ If not, press the Enter or Esc key to release the hot key mode. þ The keyboard and mouse for the server are set up correctly?
→ Check the server is set up correctly. Refer to the User's Guide attached to the server for
details.
þ Is the interface cable connected correctly?
→ Check the cable connection referring to Chapter 1.
→ Check that the cable connector is not defective and any connector pin is neither bent nor
dirt. If the cable is defective, contact your service representative to request the
replacement of the cable with new one.
þ Are the keyboard and mouse for the NEC Express5800 server?
→ If any keyboard or mouse not approved by NEC is used, the server switch unit does not
operate normally. Use the keyboard and mouse exclusively used for the NEC
Express5800 server.
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þ Are the settings for the mouse on RedHat Linux 7.2 correct?
→ Check the settings for the mouse on RedHat Linux 7.2. See Chapter 1 for details.
The server does not start.
þ Did you press the Auto Scan switch during server startup?
→ Select any other server with the Server Selection switch, and select the desired server
again.
The scroll functions and buttons do not operate.
þ Is the used mouse fit to the NEC Express5800 server?
→ If any mouse not approved by NEC is used, the NEC Express5800 server does not
operate normally. Use the mouse exclusively used for the NEC Express5800 server.
þ Is the proper driver installed in the server?
→ If not, install the driver. Refer to the User's Guide attached to the NEC Express5800
server for details.
The display quality of the screen is deteriorated (including ghost and blur of characters).
þ Is the interface cable connected correctly?
→ Check if either or both of the cable connectors are defective and any connector pin is bent
or dirt. If the cable is defective, contact your service representative to request the
replacement of the cable with a new one.
The switching from a server to another causes the screen display to be shifted or not to
appear.
þ Is the resolution set correctly?
→ Check the resolution set in the server and that of the display monitor. Refer to the User's
Guide attached to the server and that for the display unit for details.
þ Is the console information set correctly?
→ Check the resolution set in the console information. See Chapter 2 for details.
þ Is the monitor synchronized with the server?
→ Check the synchronization set for the display monitor. Refer to the User's Guide
attached to the display unit for details.
þ Is the used display monitor fit to the NEC Express5800 server?
→ Any display monitor not approved by NEC displays images incorrectly. Use the
multi-sink display monitor exclusively used for the NEC Express5800 server.
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Page 97
The server switch unit does not enter the auto scan mode.
þ Is the server switch unit set to the hot key mode?
→ If not, enter the server switch unit into the hot key mode referring to Chapter 2 and press
the 0 (zero) key.
þ Is the key entry correct?
→ If not, press the 0 (zero) key.
A server cannot be switched to another in the hot key mode.
þ Is the key entry correct?
→ Press the proper one of the 1 to 8 keys for the first server in the master side. Press the
relevant one of the F1 to F8 keys for the second server in the slave side.
þ Did you press any key during OS startup?
→ Any key entry is not acceptable during OS startup. Enter again after the OS has been
started up.
→ If any key is pressed during OS startup, the Server Selection switch on the console panel
is also disabled. Press the Reset switch to restart the server switch unit, and press the
Server Selection switch once again.
The switching period of the auto scan is invalid.
þ Is the switching period set properly?
→ Modify the switching period correctly using the cursor keys (↑ and ↓).
If the power of a server is turned on, the Server Selection lamp does not go on.
þ Are the keyboard and mouse ports on the server normal?
→ The keyboard and/or mouse ports on the server may be defective. Contact your service
representative to ask the repair of the ports.
þ Is the interface cable connected correctly?
→ Check the cable connection referring to Chapter 1.
→ Check if either or both of the cable connectors are defective and any connector pin is bent
or dirt. If the cable is defective, contact your service representative to request the
replacement of the cable with a new one.
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Page 98
The server switch unit does not recognize the cascade connection.
þ Does the Serve Switch Unit operate normally?
→ Press the Reset switches on the server switch units to start them again. Always press the
Reset switch of the master side first and then that of the slave side. If the status remains
unchanged, either or both of the server switch units are defective. Contact your service
representative to request the repair of the units.
The server switch unit becomes inoperable suddenly while it has been operated.
þ Does the Server Switch Unit operate normally?
→ Press the Reset switch on the server switch unit to restart the unit. If the status remains
unchanged, the server switch unit may be defective. Contact your service representative
to ask the repair of the unit.
The Serve Switch Unit cannot enter into the hot key mode (OSD does not appear).
þ Did you press any key during the start of OS?
→ The server switch unit does not accept any key entry during the start of OS. Provide the
key entry again after OS is started.
→ Any key entry during the start of OS causes the Server Selection switches on the console
panel to be invalid also. Press the Reset switch to restart the server switch unit and then
provide the key entry.
þ Is the screen saver feature of the server connected to the server switch unit enabled?
→ Check the Server Selection lamp on the server switch unit. If it blinks, press the Esc
key and move the mouse to disable the screen saver. If it does not blink, move the
mouse to disable the screen saver.
þ Is the server connected to the server switch unit in sleep mode?
→ Cancel the sleep mode of the server.
Cannot enter the desired character from the keyboard.
þ Is any one of Ctrl, Alt, or Shift key being pressed when you press the Server Selection
switch?
→ Press any one of Ctrl, Alt, or Shift key, and enter the desired character again.
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Page 99
A vertical or horizontal line (noise) appears on the screen.
þ Did you provide the fine adjustment?
→ Provide the fine adjustment of the monitor according to User's Guide of the display unit.
The message "OUT of Timing" is displayed on the screen. <Windows 2000>
þ Did you set the console information correctly?
→ If the console information is not set correctly, the server fails to detect the resolution of
monitor. See Chapter 2 for details.
þ Check the monitor property.
→ Change the "Monitor Properties" of Windows 2000 as follows.
Select [Display Properties] - [Settings] - [Advanced...] - [Monitor] and remove the
checkmark on [Hide modes that this monitor cannot display].
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Page 100
RELOCATION AND STORAGE OF SERVER SWITCH UNIT
WARNING
Observe the following instructions to use the server switch unit and the other
peripherals safely. Failure to follow these instructions may result in death or
serious personal injury. See the description on pages vi through xiv for details.
n Do not disassemble, repair, or alter the server switch unit.
n Disconnect the AC cord and dedicated cables before working with the server
switch unit.
CAUTION
Observe the following instructions to use the server switch unit safely. Failure
to follow these instructions may cause personal burn or injury and/or physical
damages. See the description on pages vi through xiv for details.
nDo not install the server switch unit halfway.
If the server switch unit needs to be relocated or stored due to a change in the
Notice
floor layout to a great extent, contact your service representative.
1. Remove the AC cord and dedicated cables from the server switch unit referring to Chapter 1.
If the server switch unit is installed in the rack, remove the unit from the rack.
2. Package the server switch unit with packaging material and shipping carton that comes with
the unit. If you do not have them, use shock-absorbing material so that may not be damaged
or given excess shocks and/or vibrations.
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