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Cisco 3750G-12S Hardware Installation Guide - Page 20

Catalyst 3750G Integrated Wireless LAN Controller Switch Front Panel, 10/100 and 10/100/1000 Ports - poe

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10/100 and 10/100/1000 Ports Chapter 1 Product Overview Catalyst 3750G Integrated Wireless LAN Controller Switch Front Panel The Catalyst 3750G Integrated Wireless LAN Controller switches have an integrated Cisco wireless LAN controller. Depending on the switch model, the integrated wireless controller can support up to 25 or 50 Cisco Lightweight Access Points. The 10/100/1000 PoE ports switch are numbered 1 through 24 and grouped in pairs. The first member of the pair (port 1) is above the second member (port 2), as shown in Figure 1-15. Port 3 is above port 4, and so on. The SFP module slots are numbered 25 and 26. The switch also has two internal Gigabit Ethernet ports that connect the switch and the controller. The internal ports are numbered as ports 27 and 28 and are not visible on the front panel. Figure 1-15 Catalyst 3750G-24WS-S25 and 3750G-24WS-S50 Switch 141726 SYST RPS MASTR STAT DUPLX SPEED STACK PoE 12 1X 34 56 78 9 10 11 12 11X 2X 12X 13 14 13X 15 16 17 18 19 20 21 22 23 24 23X 14X 24X CataWlyirset l3e7ss50LGASNERCIESoPntorEol-l2e4r 25 1 2 1 10/100/1000 PoE ports 2 SFP module slots 10/100 and 10/100/1000 Ports You can set the 10/100 ports on the switch to operate in any combination of half duplex, full duplex, 10 Mb/s, or 100 Mb/s. You can set the 10/100/1000 ports to operate in 10 or 100 Mb/s in half or full duplex, or in 1000 Mb/s in full duplex. You can set both the 10/100 and the 10/100/1000 ports for speed and duplex autonegotiation, in compliance with IEEE 802.3AB. (The default setting is autonegotiate.) Note You can configure duplex mode to half, full, or autonegotiate on Gigabit Ethernet interfaces if the speed is set to 10 or 100 Mb/s. You cannot configure half-duplex mode on Gigabit Ethernet interfaces if the interface speed is 1000 Mb/s. When set for autonegotiation, the port senses the speed and duplex settings of the attached device and advertises its own capabilities. If the connected device also supports autonegotiation, the switch port negotiates the best connection (the fastest line speed that both devices support and full-duplex transmission if the attached device supports it) and configures itself accordingly. In all cases, the attached device must be within 328 feet (100 meters). The 10/100 or the 10/100/1000 PoE ports on the switch provide PoE support for devices that are compliant with IEEE 802.3af. They also provide Cisco pre-standard PoE support for Cisco IP Phones and Cisco Aironet Access Points. 1-10 Catalyst 3750 Switch Hardware Installation Guide OL-6336-10

Section	Page
Catalyst 3750 Switch Hardware Installation Guide	1
Preface	7
Audience	7
Purpose	7
Conventions	7
Related Publications	8
Obtaining Documentation, Obtaining Support, and Security Guidelines	9
Product Overview	11
Features	11
Front Panel Description	13
Fast Ethernet Switches	13
Catalyst 3750-24FS and 3750V2-24FS Switch Front Panel	13
Catalyst 3750-24TS and 3750V2-24TS Switch Front Panel	14
Catalyst 3750-48TS and 3750V2-48TS Switch Front Panel	15
Catalyst 3750-24PS and 3750V2-24PS Switch Front Panel	15
Catalyst 3750-48PS and 3750V2-48PS Switch Front Panel	16
Gigabit Ethernet Switches	16
Catalyst 3750G-12S and Catalyst 3750G-12S-SD Switch Front Panel	16
Catalyst 3750-24T, 3750G-24TS, and 3750G-24TS-1U Switch Front Panel	16
Catalyst 3750G-48TS Switch Front Panel	18
Catalyst 3750G-24PS Switch Front Panel	18
Catalyst 3750G-48PS Switch Front Panel	19
Catalyst 3750G-16TD Switch Front Panel	19
Catalyst 3750G Integrated Wireless LAN Controller Switch Front Panel	20
10/100 and 10/100/1000 Ports	20
100BASE-FX Ports	22
SFP Module Slots	22
SFP Modules	23
XENPAK Module Slot (Catalyst 3750G-16TD Switch)	23
LEDs	23
System LED	25
RPS LED	26
Master LED	26
Port LEDs and Modes	27
Rear Panel Description	31
StackWise Ports	34
Power Connectors	35
Internal Power Supply Connector	35
DC Power Connector	35
Cisco RPS Connector	35
Console Port	36
Management Options	36
Network Configurations	37
Switch Installation	39
Preparing for Installation	39
Warnings	40
Installation Guidelines	44
Box Contents	45
Tools and Equipment	45
Verifying Switch Operation	45
Powering On the Switch and Running POST	45
Powering Off the Switch	46
Planning the Stack	46
Planning Considerations	46
Powering Considerations	46
Cabling Considerations	47
Recommended Cabling Configurations	48
Installing the Switch	49
Rack-Mounting	50
Removing Screws from the Switch	50
Attaching Brackets to the Catalyst 3750G-24TS Switch	52
Attaching Brackets to the Catalyst 3750G Integrated Wireless LAN Controller Switches	55
Attaching Brackets to All Other Catalyst 3750 Switches	56
Mounting the Switch in a Rack	62
Attaching the Cable Guide	64
Wall-Mounting	65
Attaching the Brackets to the Switch for Wall-Mounting	66
Attaching the RPS Connector Cover	66
Mounting the Switch on a Wall	67
Table- or Shelf-Mounting	68
Connecting StackWise Cable to StackWise Ports	68
Installing and Removing SFP Modules	71
Installing SFP Modules into SFP Module Slots	71
Removing SFP Modules from SFP Module Slots	72
Installing and Removing XENPAK Modules (Catalyst 3750G-16TD Switch)	73
Installing a XENPAK Module	74
Removing a XENPAK Module	76
Connecting to the 10/100 and 10/100/1000 Ports	77
Connecting to an SFP Module	79
Connecting to a Fiber-Optic SFP Module	79
Connecting to 1000BASE-T SFP Modules	81
Connecting to a XENPAK Module	82
Where to Go Next	83
Troubleshooting	85
Diagnosing Problems	85
Verify Switch POST Results	86
Monitor Switch LEDs	86
Verify Switch Connections	86
Bad or Damaged Cable	86
Ethernet and Fiber Cables	86
Link Status	87
PoE Connections	87
Transceiver Module Port Issues	87
Port and Interface Settings	88
Ping the End Device	88
Spanning Tree Loops	88
Monitor Switch Performance	89
Speed, Duplex, and Autonegotiation	89
Autonegotiation and NIC Cards	89
Cabling Distance	89
Clearing the Switch IP Address and Configuration	90
Replacing a Failed Stack Member	90
Finding the Switch Serial Number	91
Technical Specifications	97
Connector and Cable Specifications	109
Connector Specifications	109
10/100 and 10/100/1000 Ports	110
100BASE-FX Ports	110
SFP Module Ports	111
XENPAK Module Ports (Catalyst 3750G-16TD Switch)	112
Console Port	112
Cable and Adapter Specifications	113
SFP Module Cable Specifications	113
Two Twisted-Pair Cable Pinouts	114
Four Twisted-Pair Cable Pinouts for 10/100 Ports	115
Identifying a Crossover Cable	116
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports	116
Crossover Cable and Adapter Pinouts	117
Connecting to DC Power	119
Connecting to DC Power	119
Preparing for Installation	119
Grounding the Switch	120
Wiring the DC-Input Power Source	122
Configuring the Switch with the CLI-Based Setup Program	127
Accessing the CLI	128
Accessing the CLI Through Express Setup	128
Accessing the CLI Through the Console Port	128
Taking Out What You Need	129
Stacking the Switches (Optional)	130
Connecting to the Console Port	131
Starting the Terminal Emulation Software	132
Connecting to a Power Source	132
Entering the Initial Configuration Information	133
IP Settings	133

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1-10

Catalyst 3750 Switch Hardware Installation Guide

OL-6336-10

Chapter 1

Product Overview

10/100 and 10/100/1000 Ports

Catalyst 3750G Integrated Wireless LAN Controller Switch Front Panel

The Catalyst 3750G Integrated Wireless LAN Controller switches have an integrated Cisco wireless

LAN controller. Depending on the switch model, the integrated wireless controller can support up to 25

or 50 Cisco Lightweight Access Points. The 10/100/1000 PoE ports switch are numbered 1 through 24

and grouped in pairs. The first member of the pair (port

1) is above the second member (port

2), as shown

Figure 1-15

. Port 3 is above port 4, and so on. The SFP module slots are numbered 25 and 26. The

switch also has two internal Gigabit Ethernet ports that connect the switch and the controller. The

internal ports are numbered as ports 27 and 28 and are not visible on the front panel.

Figure 1-15

Catalyst 3750G-24WS-S25 and 3750G-24WS-S50 Switch

10/100 and 10/100/1000 Ports

You can set the 10/100 ports on the switch to operate in any combination of half duplex, full duplex,

10 Mb/s, or 100 Mb/s. You can set the 10/100/1000 ports to operate in 10 or 100 Mb/s in half or full

duplex, or in 1000 Mb/s in full duplex.

You can set both the 10/100 and the 10/100/1000 ports for speed and duplex autonegotiation, in

compliance with IEEE 802.3AB. (The default setting is autonegotiate.)

Note

You can configure duplex mode to half, full, or autonegotiate on Gigabit Ethernet interfaces if the speed

is set to 10 or 100 Mb/s. You cannot configure half-duplex mode on Gigabit Ethernet interfaces if the

interface speed is 1000 Mb/s.

When set for autonegotiation, the port senses the speed and duplex settings of the attached device and

advertises its own capabilities. If the connected device also supports autonegotiation, the switch port

negotiates the best connection (the fastest line speed that both devices support and full-duplex

transmission if the attached device supports it) and configures itself accordingly. In all cases, the

attached device must be within 328 feet (100 meters).

The 10/100 or the 10/100/1000 PoE ports on the switch provide PoE support for devices that are

compliant with IEEE 802.3af. They also provide Cisco pre-standard PoE support for Cisco IP Phones

and Cisco Aironet Access Points.

10/100/1000 PoE ports

SFP module slots

Catalyst 3750G

SERIES

PoE-24

Wireless LAN Controller

SYST

RPS

MASTR

STAT

DUPLX

SPEED

STACK

PoE

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