Справочник Пользователя для 3com 2000 TR
3-2
C
HAPTER
3: I
NSTALLING
A
ND
S
ETTING
U
P
T
HE
M
ODULE
Installation
This section explains how to install the TR-in-FE
Module into a SuperStack II Switch 2000 TR device.
Installation is similar for all devices compatible with
the TR-in-FE Module.
Module into a SuperStack II Switch 2000 TR device.
Installation is similar for all devices compatible with
the TR-in-FE Module.
CAUTION: Always follow Electro Static Discharge
(ESD) procedures when installing an I/O Module.
(ESD) procedures when installing an I/O Module.
1
If the Switch is connected to the network, turn off the
power and disconnect the switch from the main
power supply and the network.
power and disconnect the switch from the main
power supply and the network.
2
Place the Switch on a flat, clean, hard, work surface.
3
Locate and remove the blanking plate that covers the
switch Module slot. See Figure 3-1. Retain the blank-
ing plate and the screws for future use.
switch Module slot. See Figure 3-1. Retain the blank-
ing plate and the screws for future use.
To locate the slot where the TR-in-FE Module resides,
refer to the manual that accompanies your device .
refer to the manual that accompanies your device .
4
Use the guide rails within the Switch slot to align the
TR-in-FE Module. The location of the guide rails and
the correct positioning of the plate is shown in
Figure 3-1.
TR-in-FE Module. The location of the guide rails and
the correct positioning of the plate is shown in
Figure 3-1.
5
Slide the TR-in-FE Module into the slot without touch-
ing the top or bottom of the circuit board, which
positions upside down on the plate. Ensure that the
module is pushed fully into the unit.
ing the top or bottom of the circuit board, which
positions upside down on the plate. Ensure that the
module is pushed fully into the unit.
6
Use the thumb screws attached to the TR-in-FE
Module to fix the module firmly into place.
Module to fix the module firmly into place.
7
Connect the cable to the TR-in-FE port.
■
For fiber: 3Com supports multi-mode fiber
50/125
50/125
mm and an SCduplex connector. The
maximum inter-station distance (including
device-to-network connectors) should not exceed
two kilometers (1.25 miles) for full duplex. For half
duplex, the maximum inter-station distance should
not exceed 300 meters.
device-to-network connectors) should not exceed
two kilometers (1.25 miles) for full duplex. For half
duplex, the maximum inter-station distance should
not exceed 300 meters.
■
For copper: 3Com supports Category 5 type UTP
cable at distances up to 100 m for both half and
full duplex.
cable at distances up to 100 m for both half and
full duplex.
8
Connect the cable to the module. Connect the Rx
connector to the port’s Tx socket. Connect the Tx
connector to the port’s Rx socket. Do the same at the
other end of the connection.
connector to the port’s Tx socket. Connect the Tx
connector to the port’s Rx socket. Do the same at the
other end of the connection.
■
For fiber: Each end of the fiber cable has a trans-
mit (Tx) and receive (Rx) connector.
mit (Tx) and receive (Rx) connector.
■
For copper: A crossover cable may be required for
operation, which requires a jumper setting on the
module. See“Jumper Settings” in this chapter.
operation, which requires a jumper setting on the
module. See“Jumper Settings” in this chapter.
9
Connect the downlink port to a Fast Ethernet
repeater, server, or switch. If you plan running full
duplex, ensure that the other end of the link supports
it. A repeater will not support full duplex whereas a
switch such as the SuperStack 3000 will.
repeater, server, or switch. If you plan running full
duplex, ensure that the other end of the link supports
it. A repeater will not support full duplex whereas a
switch such as the SuperStack 3000 will.
NOTE:
The Fast Ethernet switch does not have to be a
SuperStack II 3000. However, due to the 3000’s capa-
bility of handling frame sizes larger than 1500 bytes
as well as its cost efficiency, the 3000 is the switch of
preference for anchoring the system.
bility of handling frame sizes larger than 1500 bytes
as well as its cost efficiency, the 3000 is the switch of
preference for anchoring the system.
10
Power up the switch. The link status LED turns green
once a valid connection is made.
once a valid connection is made.