Cisco WS-C3550-24-FX-SMI - Catalyst 3550 100BASE-FX Switch Guía de instalación Pagina 101
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B-5
Catalyst 3550 Multilayer Switch Hardware Installation Guide
78-11358-06
Appendix B Connector and Cable Specifications
Cable and Adapter Specifications
Four Twisted-Pair Cable Pinouts for 10/100 Ports
Figure B-6 and Figure B-7 show the schematics of four twisted-pair cables for
ports running 10 or 100 Mbps traffic.
For inline power connections, signal pairs are used to provide inline power.
Nominally, there is 48 V between the pin pairs (1–2), and pairs (3–6) when inline
power is active.
Figure B-6 Four Twisted-Pair Straight-Through Cable Schematic for
10/100 Ports
Figure B-7 Four Twisted-Pair Crossover Cable Schematic for 10/100 Ports
1 RD+
2 RD-
3TD+
6TD-
1TD+
Switch Router or PC
2TD-
3 RD+
6 RD-
4NC
5NC
7NC
8NC
4NC
5NC
7NC
8NC
65271
1 RD+
2 RD-
3TD+
6TD-
1 RD+
Switch Switch
2 RD-
3 TD+
6 TD-
4NC
5NC
7NC
8NC
4NC
5NC
7NC
8NC
65273
- Hardware Installation Guide 1
- CONTENTS 5
- 2 Product Overview 2-1 6
- 3 Switch Installation 3-1 6
- 4 Troubleshooting 4-1 7
- C DC Power Connections C-1 8
- Contents 10
- 78-11358-06 10
- Warranty Terms 11
- Duration of Hardware Warranty 12
- Audience 15
- Conventions 16
- Related Publications 21
- Obtaining Documentation 22
- Documentation Feedback 23
- Opening a TAC Case 24
- TAC Case Priority Definitions 24
- Using Express Setup 27
- Taking Out What You Need 28
- 1 Switch 2 AC power cord 29
- Powering On the Switch 30
- Starting Express Setup 31
- Rerunning Express Setup 37
- Figure 1-8 Switch Home Page 38
- Where to Go Next 39
- Product Overview 41
- Features 42
- Front-Panel Description 45
- 10/100 and 10/100/1000 Ports 46
- 10/100 Inline Power Ports 47
- 100BASE-FX Ports 47
- GBIC Module Slots 48
- System LED 49
- Port LEDs and Modes 50
- Bandwidth Utilization 52
- < 25% + 53
- 25% – 49% + 53
- Rear-Panel Description 54
- AC Power Connector 55
- Cisco RPS Connector 55
- Management Options 56
- • SmartPort Macros 57
- • CiscoView application 57
- • SNMP network management 57
- Network Configurations 58
- Switch Installation 59
- EMC Regulatory Statements 63
- Site Requirements 65
- Verifying Package Contents 66
- Installing the Switch 67
- 19" Configuration 72
- Phillips 72
- 24" Configuration 74
- Phillips machine screws 75
- Wall Mounting 76
- Mounting the Switch on a Wall 78
- Table or Shelf Mounting 79
- Powering the Switch 82
- Connecting a Cisco RPS 82
- Installing GBIC Modules 85
- Troubleshooting 87
- Chapter4 Troubleshooting 88
- Diagnosing Problems 89
- Technical Specifications 93
- Connector Specifications 97
- 10/100 and 10/100 /1000 Ports 98
- Console Port 99
- 10/100 Ports 101
- Identifying a Rollover Cable 103
- Adapter Pinouts 104
- Signal DB-25 Pin Signal 105
- DC Power Connections 107
- Grounding the Switch 108
- Preparing for Installation 108
- Insulation 109
- Wire lead 109
- 0.5 in. (12.7 mm) 109
- 0.02 in. (0.5 mm) 109
- Torque to 15 lbf-in 110
- Connecting to DC Power 111
- -72 V 112
- CURRENT: 2 - 1A 112
- 0.25 inch (6.3 mm) 113
- 0.02 inch (0.5 mm) 113
- Tie wrap 115
- CLI-Based Setup Program 117
- Powering on the Switch 120
- IP Settings 121
- Completing the Setup Program 122
- Step 10 These choices appear: 124
- • CMS from your browser 124
- Translated Safety Warnings 125
- PWR675-AC-RPS-N1) 126
- Service Personnel Warning 128
- Qualified Personnel Warning 129
- Jewelry Removal Warning 132
- Stacking the Chassis Warning 134
- Avvertenza 135
- Advarsel 135
- ¡Atención! 135
- Main Disconnecting Device 136
- Grounded Equipment Warning 137
- Overtemperature Warning 138
- Waarschuwing 140
- Varoitus 140
- Attention 140
- ¡Advertencia! 141
- Varning! 141
- Product Disposal Warning 143
- Switch Installation Warning 151
- Restricted Area Warning 154
- Aperture Ports 159
- Advarsel! 160
- Laser Beam Exposure Warning 161
- Exposed DC Power Wire Warning 162
- Numerics 169
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