Juniper Networks MX240 Bedienungsanleitung Seite 214
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an auxiliary or console management device. For more information, see “Routing
Engine Interface Ports” on page 16. Table 41 on page 186 describes the RJ-45
connector pinout.
Table 41: RJ-45 Connector Pinout for the AUX and CONSOLE Ports
DescriptionSignalPin
Request to SendRTS1
Data Terminal ReadyDTR2
Transmit DataTXD3
Signal GroundGround4
Signal GroundGround5
Receive DataRXD6
Data Set ReadyDSR/DCD7
Clear to SendCTS8
186 ■ RJ-45 Connector Pinouts for the Routing Engine AUX and CONSOLE Ports
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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