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C-1
Catalyst 3550 Multilayer Switch Hardware Installation Guide
78-11358-06
APPENDIX
C
DC Power Connections
This appendix describes how to make DC power connections to the
Catalyst 3550-24-DC switch. See the “Installing the Switch” section on page 3-9
for instructions on installing the switch.
Connecting to DC Power
To connect the Catalyst 3550-24-DC switch to a DC-input power source, follow
the steps in these sections:
• Preparing for Installation, page C-2
• Grounding the Switch, page C-2
• Wiring the DC-Input Power Source, page C-5
Warning
The Catalyst 3550-24-DC contains no field-replaceable units (FRUs). Do not open
the chassis or attempt to remove or replace any components. For information
about obtaining service for this unit, contact your reseller or Cisco sales
representative.
Warning
The equipment is to be installed in a restricted access area.
Warning
Ethernet cables must be shielded when used in a central office environment.
- 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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