Fast EtherHub 3500 System User’s Guide
Installing the System 2-7
10BASE-T - EM3551-TX SmartExtender Module
100BASE-TX - EM3551-TX SmartExtender Module
100BASE-T4 - EM3551-T4 SmartExtender Module
100BASE-FX - EM3551-FX-ST SmartExtender Module
EM3551-FX-SC SmartExtender Module
Note: The EM3551-TX automatically adjusts to 10 or 100 Mbps using
auto-sensing. Refer to
SmartExtender Module
in Chapter 1.
IThe SmartExtender Modules are not hot-swappable. Be sure you
power off the hub before installing any of these modules.
Installing a SmartExtender Module - If you need to install an
extender module, take the following steps:
1. Disconnect power to the hub.
Retain the face plate for
possible future use.
I The SmartExtender
Modules and not hot-swappable.
Be sure the hub is powered off
when installing these modules
2. Remove the face plate on the expansion slot (or a previously
installed SmartExtender Module) by removing the two
screws with a Phillips (i.e., cross-head) screwdriver.
3. Before opening the package that contains the extender
module, touch the bag to the hub casing to discharge any
potential static electricity.
4. Remove the module from the anti-static shielded bag.
5. Holding the module level, gently push it all the way into the
expansion slot, ensuring that it firmly engages with the
connector.
6. If you are sure the module is properly mated with the
connector, replace the retainer screws to secure the module
in the expansion slot.
7. Run corresponding media type between the extender module
and the target device.
Avoid running your cables near
equipment that may generate
electromagnetic interference.
Connecting Twisted-pair Cabling - For the 100BASE-TX and
100BASE-T4 modules, prepare Category 5 straight-through
twisted-pair cables with RJ-45 plugs at both ends. When
connecting the module directly to an end-node device (e.g., a
workstation or file server), a bridge or router, run cable from the
MDI-X port on the SmartExtender Module to the target device.
However, when connecting the module to a hub or switch,