3Com 3C16467 User Manual - Page 2

Browse online or download pdf User Manual for Switch 3Com 3C16467. 3Com 3C16467 9 pages. Superstack 3 baseline 10/100 switch 24-port 10base-t/100base-tx plus 1-port 1000base-t (3c16467)

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The numbers in this diagram refer to numbered sections in the

text.

Front Panel

24 RJ-45 10/100 Ports and 1 RJ-45 1000 Port

WARNING:

RJ-45 ports. These are shielded RJ-45 data

sockets. They cannot be used as telephone sockets. Only

connect RJ-45 data connectors to these sockets. Either

shielded or unshielded data cables with shielded or

unshielded jacks can be connected to these data sockets.

AVERTISSEMENT: Les ports RJ-45. Il s'agit de prises

femelles blindées de données RJ-45. Vous ne pouvez pas

les utiliser comme prise de téléphone. Branchez unique-

ment des connecteurs de données RJ-45 sur ces prises

femelles. Les câbles de données blindés ou non blindés,

avec les jacks blindés ou non blindés, l'un ou l'autre, peu-

vent être branchés à ces prises de courant de données.

WARNUNG: RJ-45-Anschlüsse. Dies sind abgeschirmte

RJ-45-Datenbuchsen. Sie können nicht als Telefon-

anschlußbuchsen verwendet werden. An diesen Buchsen

dürfen nur RJ-45-Datenstecker angeschlossen werden.

Diese Datenstecker können entweder mit abgeschirmten

oder unabgeschirmten Datenkabeln mit abgeschirmten

oder unabgeschirmten Klinkensteckern verbunden wer-

den.

10BASE-T/100BASE-TX Ports

The Baseline 10/100 Switch 24 Port 10BASE-T/100BASE-TX plus

1-Port 1000BASE-T has 24 10/100Mbps auto-negotiating ports.

Ports 1–23 are MDIX ports. Each can be connected to a device

with an MDI port (such as a workstation) using a normal 'straight

through' TP (twisted pair) cable. Alternatively, you can connect to

a device with MDIX ports using 'cross-over' TP cable.

Port 24 is 'switch selectable' MDI/MDIX using the MDI switch, as

described in 2. Using this port, you can connect to any other

device without the need for 'cross-over' cable.

Ports 1 to 24 are auto-negotiating: their speed and duplex mode

(half duplex or full duplex) are automatically determined by the

capabilities of the connected device. Each port can be connected

to either a 10BASE-T or a 100BASE-TX device.

CAUTION: The Baseline 10/100 Switch supports full

duplex auto-negotiation. If the connected device does not

support auto-negotiation, the Switch will operate in half

duplex mode (even if the device is operating in full duplex

mode). In such a configuration, you may notice some

degradation of network performance. 3Com recommends

that you use devices that are capable of auto-negotiation

(and that you ensure that auto-negotiation is enabled, if

it is a configurable option).

1000BASE-T Port

Port 25 is a 1000BASE-T port capable of auto-negotiation with

the connected port to operate at 1000BASE-T full duplex. It

auto-senses an MDI/MDIX connection and can be used to connect

SE THE

ASELINE

10/100 S

WITCH

to either another 1000BASE-T switch port or to a 1000BASE-T

server or workstation without additional configuration.

Connecting to a Network Device

To connect a device to the Baseline 10/100 Switch 24 Port

10BASE-T/100BASE-TX plus 1-Port 1000BASE-T, use Category 5

unshielded or shielded (screened) 100 Ohm TP cable (or

Category 3 cable for a 10Mbps connection). The maximum length

of cable for each connection is 100m (328ft). Connect one end of

the cable to an RJ-45 port on the Baseline 10/100 Switch, and

the other end to the appropriate RJ-45 port on the connecting

device.

Connecting to another Switch or Hub

If you connect two Baseline 10/100 Switch 24 Port

10BASE-T/100BASE-TX plus 1-Port 1000BASE-T units

together, 3Com recommends that you use the

1000BASE-T ports on both units for the link. You must

use Category 5 cable when connecting the units.

1000BASE-T connection: To connect a Baseline 10/100 Switch

24 Port 10BASE-T/100BASE-TX plus 1-Port 1000BASE-T to

another Switch using the 1000BASE-T port, use a normal 'straight

through' cable and connect each end to the 1000BASE-T port on

each unit.

100BASE-TX connection: To connect the Baseline 10/100 Switch

24 Port 10BASE-T/100BASE-TX plus 1-Port 1000BASE-T to a

SuperStack 3 hub using a normal 'straight through' cable,

connect any port on the Baseline 10/100 Switch 24 Port

10BASE-T/100BASE-TX plus 1-Port 1000BASE-T to the MDI/MDIX

port on the hub, as shown below. Ensure that the MDI switch on

the hub is in (MDI).

An alternative method of connecting the Baseline 10/100 Switch

to a hub using a normal 'straight through' cable is to connect any

MDIX port on the hub to the MDI/MDIX port on the Baseline

10/100 Switch, ensuring that its MDI Switch is set to in (MDI).

You can use 'cross-over' TP cable to connect any MDIX port on

the Baseline 10/100 Switch to any MDIX port on a hub.

24-P

ORT