Juniper Networks MX240 Manuel d'utilisateur Page 182
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Noté. / 5. Basé sur avis des utilisateurs
Aviso Ate con alambre la fuente de potencia cc Usando los terminales apropiados
en el extremo del cableado. Al conectar potencia, la secuencia apropiada del cableado
se muele para moler, +RTN a +RTN, entonces -48 V a -48 V. Al desconectar potencia,
la secuencia apropiada del cableado es -48 V a -48 V, +RTN a +RTN, entonces molió
para moler. Observe que el alambre de tierra se debe conectar siempre primero y
desconectar por último. Observe que el alambre de tierra se debe conectar siempre
primero y desconectar por último.
¡Atención! Wire a fonte de alimentação de DC Usando os talões apropriados na
extremidade da fiação. Ao conectar a potência, a seqüência apropriada da fiação é
moída para moer, +RTN a +RTN, então -48 V a -48 V. Ao desconectar a potência,
a seqüência apropriada da fiação é -48 V a -48 V, +RTN a +RTN, moeu então para
moer. Anote que o fio à terra deve sempre ser conectado primeiramente e
desconectado por último. Anote que o fio à terra deve sempre ser conectado
primeiramente e desconectado por último.
Varning! Korrekt kopplingssekvens ar jord till jord, +RTN till +RTN, –48 V till – 48
V. Korrekt kopplas kopplingssekvens ar –48 V till –48 V, +RTN till +RTN, jord till
jord.
DC Power Wiring Terminations Warning
WARNING: When stranded wiring is required, use approved wiring terminations,
such as closed-loop or spade-type with upturned lugs. These terminations should be
the appropriate size for the wires and should clamp both the insulation and conductor.
Waarschuwing Wanneer geslagen bedrading vereist is, dient u bedrading te gebruiken
die voorzien is van goedgekeurde aansluitingspunten, zoals het gesloten-lus type of
het grijperschop type waarbij de aansluitpunten omhoog wijzen. Deze aansluitpunten
dienen de juiste maat voor de draden te hebben en dienen zowel de isolatie als de
geleider vast te klemmen.
Varoitus Jos säikeellinen johdin on tarpeen, käytä hyväksyttyä johdinliitäntää,
esimerkiksi suljettua silmukkaa tai kourumaista liitäntää, jossa on ylöspäin käännetyt
kiinnityskorvat. Tällaisten liitäntöjen tulee olla kooltaan johtimiin sopivia ja niiden
tulee puristaa yhteen sekä eristeen että johdinosan.
Attention Quand des fils torsadés sont nécessaires, utiliser des douilles terminales
homologuées telles que celles à circuit fermé ou du type à plage ouverte avec cosses
rebroussées. Ces douilles terminales doivent être de la taille qui convient aux fils et
doivent être refermées sur la gaine isolante et sur le conducteur.
Warnung Wenn Litzenverdrahtung erforderlich ist, sind zugelassene
Verdrahtungsabschlüsse, sind zugelassene Verdrahtungsanschlüsse, z.B. Ringoesen
oder gabelförmige Kabelschuhe mit nach oben gerichteten Enden zu verwenden.
Diese Abschlüsse sollten die angemessene Größe für die Drähte haben und sowohl
die Isolierung als auch den Leiter festklemmen.
154 ■ Safety Guidelines and Warnings
MX240 Ethernet Services Router Hardware Guide
- Hardware Guide 1
- End User License Agreement 3
- Part 2 Setting Up the Router 6
- Procedures 7
- Part 4 Appendixes 9
- Table of Contents 10
- Table of Contents ■ xi 11
- Part 5 Index 12
- List of Figures 13
- List of Tables 15
- About This Guide 17
- Documentation Conventions 18
- JUNOS References 21
- Release Notes 23
- Obtaining Documentation 26
- Documentation Feedback 26
- Requesting Technical Support 27
- MX240 Router Overview 29
- 2 ■ MX240 Router Overview 30
- Router Overview 31
- Component Redundancy 32
- Hardware Components 33
- 6 ■ Router Chassis 34
- Router Chassis ■ 7 35
- Midplane 36
- DPC Components 38
- Host Subsystem 39
- Switch Control Board (SCB) 39
- SCB Slots 40
- SCB Redundancy 40
- SCB Components 41
- SCB LEDs 41
- Routing Engine 42
- Host Subsystem ■ 15 43
- Routing Engine Boot Sequence 44
- Cable Management System 45
- Craft Interface 45
- ACO/LT (for “alarm 46
- 18 ■ Craft Interface 46
- Host Subsystem LEDs 47
- Power Supply LEDs 47
- DPC LEDs 48
- Fan LEDs 48
- Power Supplies 49
- AC Power Supply 49
- AC Power Supply LEDs 50
- DC Power Supply 51
- Cooling System 52
- Figure 18: Fan Tray 53
- 26 ■ Cooling System 54
- Setting Up the Router 55
- 28 ■ Setting Up the Router 56
- Chapter 3 57
- Cabinet Requirements 58
- Cabinet Airflow Requirements 58
- Rack Requirements 59
- Rack Size and Strength 59
- Installation Overview 63
- Unpacking the Router 65
- Verifying Parts Received 66
- Verifying Parts Received ■ 39 67
- 40 ■ Verifying Parts Received 68
- Chapter 6 69
- Installing the Router 73
- Tools Required 74
- Figure 23 on page 42 75
- Connecting the Router 77
- Connecting DPC Cables 79
- 52 ■ Connecting DPC Cables 80
- Chapter 9 81
- Grounding the Router 82
- 83
- PS FAIL LED is not lit 83
- OFF position 84
- RTN) and the negative 86
- Powering Off the Router 87
- 60 ■ Powering Off the Router 88
- Configuring JUNOS Software 89
- Chapter 11 95
- Maintaining the Air Filter 96
- Maintaining the Fan Tray 96
- show chassis routing-engine 98
- Maintaining DPCs 100
- 1/0, 1, and 2, left to right: 101
- Maintaining DPC Cables 102
- Handling and Storing DPCs 102
- Holding a DPC 103
- Storing a DPC 105
- Chapter 12 107
- Alarm Relay Contacts 108
- Component LEDs 109
- Troubleshooting DPCs 111
- Replacing Hardware Components 115
- Tools and Parts Required 116
- Replacing the Craft Interface 117
- Removing the Craft Interface 117
- Replacing Alarm Relay Wires 119
- Replacing the Fan Tray 120
- Installing the Fan Tray 121
- Replacing the Air Filter 122
- Installing the Air Filter 123
- RE0 functions as the 124
- Replacing an SCB 125
- PARK icon 126
- Removing an SCB 127
- Installing an SCB 128
- Replacing a Routing Engine 130
- Removing a Routing Engine 130
- Installing a Routing Engine 131
- Replacing a DPC 134
- Installing a DPC 136
- Figure 50: Installing a DPC 138
- Removing an AC Power Supply 141
- Installing an AC Power Supply 142
- Removing a DC Power Supply 142
- OFF position O 143
- Installing a DC Power Supply 144
- Replacing an AC Power Cord 146
- ON position — and observe 149
- Appendixes 151
- 124 ■ Appendixes 152
- Information 153
- Qualified Personnel Warning 155
- Fire Safety Requirements 158
- Fire Suppression 159
- Fire Suppression Equipment 159
- Chassis-Lifting Guidelines 160
- Ramp Warning 164
- Class 1 Laser Product Warning 165
- Class 1 LED Product Warning 165
- Laser Beam Warning 166
- Battery Handling Warning 168
- Jewelry Removal Warning 169
- Lightning Activity Warning 170
- Operating Temperature Warning 170
- Product Disposal Warning 171
- Agency Approvals 183
- European Community 185
- Declaration of Conformity 186
- United States 187
- Lithium Battery 187
- Physical Specifications 189
- 162 ■ Physical Specifications 190
- Appendix C 191
- Specifications 193
- Grouding Cable Specification 194
- DC Power Specifications 194
- DC Power Cable Specifications 198
- AC Power Specifications 200
- AC Power Cord Specifications 202
- Figure 64: AC Plug Types 203
- Radio Frequency Interference 204
- Electromagnetic Compatibility 204
- Cable and Wire Guidelines and 207
- 0.5 dBSplice 210
- Single-mode—0.5 dB/km 210
- Multimode—1 dB/km 210
- Fiber attenuation 210
- Interfaces 211
- Cable Connector Pinouts 213
- Mechanical Lift 215
- Removing the Power Supplies 216
- Removing the Fan Tray 217
- Removing SCBs 217
- Removing DPCs 218
- Figure 68: Removing a DPC 219
- Reinstalling the Fan Tray 222
- Reinstalling SCBs 223
- Reinstalling DPCs 224
- Returning Hardware 225
- SCB Serial Number Label 227
- DPC Serial Number Label 228
- (see Figure 80 on page 202) 229
- Contacting Customer Support 230
- Return Procedure 231
- Index on page 209 235
- 208 ■ Index 236
- Index ■ 209 237
- 210 ■ Index 238
- Index ■ 211 239
- 212 ■ Index 240
- Index ■ 213 241
- 214 ■ Index 242
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