Cisco Catalyst 2960-48PST Guide d'installation télécharger pdf (Page 28)

1-18

Catalyst 2960 Switch Hardware Installation Guide

OL-7075-09

Chapter 1 Product Overview

Front Panel Description

Dual-Purpose Port LEDs

The LEDs on a dual-purpose port show whether an RJ-45 connector is connected to the port, or if an SFP

module is installed in the slot. See the example in Figure 1-24. You can configure each port as either a

10/100/1000 port through the RJ-45 connector or as an SFP module, but not both at the same time. The

LEDs show how the port is being used (Ethernet or SFP module).

The LED colors have the same meanings as described in Table 1-4 and Table 1-6.

Figure 1-24 Dual-Purpose Port LEDs

PoE Off PoE is off.

If the powered device is receiving power from an AC power source, the PoE port LED is off

even if the powered device is connected to the switch port.

Green PoE is on. The port LED is green only when the switch port is providing power.

Alternating green

and amber

PoE is denied because providing power to the powered device will exceed the switch power

capacity. The Catalyst 2960-Plus 24PC-L, 2960-24PC-L, 2960-Plus 48PST-L,

2960-48PST-L, 2960-Plus 48PST-S, 2960-48PST-S, 2960-Plus 24PC-S, and 2960-24PC-S

switches provide up to 370 W of power. The Catalyst 2960-24LT-L, 2960-Plus 24LC-L,

2960-Plus 24LC-S, and 2960-24LC-S switches provide up to 124 W of power.

Blinking amber PoE is off due to a fault.

Caution

PoE faults are caused when noncompliant cabling or powered devices are

connected to a PoE port. Only standard-compliant cabling can be used to connect

Cisco prestandard IP Phones or wireless access points or IEEE 802.3af-compliant

devices to PoE ports. You must remove from the network the cable or device that

causes a PoE fault.

Amber PoE for the port has been disabled. By default, PoE is enabled.

Table 1-6 Meaning of Port LED Colors in Different Modes on the Switch (continued)

Port Mode LED Color Meaning

1 RJ-45 connector 3 SFP module port in-use LED

2 RJ-45 port in-use LED 4 SFP module slot

2 3

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 107 108

Pas de commentaire

Cisco Catalyst 2960-48PST Guide d'installation Page 28