Netgear 48-Port Manuel d'utilisateur télécharger pdf (Page 26)

GS700TP Hardware Installation Guide

3-23 Physical Description

v1.0, November 2007

Device Hardware Interfaces

This section provides information for the following hardware interfaces:

• RJ-45 Ports

• SFP GBIC Module

• Factory Defaults Button

RJ-45 Ports

RJ-45ports are auto-sensing ports. When inserting a cable into an RJ-45 port, the switch

automatically ascertains the maximum speed (10 or 100 or 1000 Mbps) and duplex mode (half- or

full-duplex) of the attached device. All ports support only Unshielded Twisted-Pair (UTP) cable

terminated with an 8-pin RJ-45 plug.

To simplify the procedure for attaching devices, all RJ-45 ports support Auto Uplink. This

technology allows attaching devices to the RJ-45 ports with either straight-through or crossover

cables. When inserting a cable into the switch’s RJ-45 port, the switch automatically:

• Senses whether the cable is a straight-through or crossover cable.

• Determines whether the link to the attached device requires a “normal” connection (such as

when connecting the port to a PC) or an “uplink” connection (such as when connecting the

port to a router, switch, or hub).

• Configures the RJ-45 port to enable communications with the attached device, without

requiring user intervention. In this way, the Auto Uplink technology compensates for setting

uplink connections, while eliminating concern about whether to use crossover or straight-

through cables when attaching devices.

FAN LED • Off - FAN is operating normally.

• Solid Yellow - FAN has failed.

MAX POE LED • Off - There is at least 7W of PoE power available for another device.

• Solid Yellow - Indicates that less than 7W of PoE power is available.

• Flashing Yellow - Indicates that the PoE MAX LED was active in the

previous two minutes.

Table 3-2. System LEDs (continued)

LED Designation

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 35 36

Pas de commentaire

Netgear 48-Port Manuel d'utilisateur Page 26