User manual

16 Publication 1783-UM003D-EN-E - December 2009
Chapter 1
CompactFlash Memory
Card
The CompactFlash card contains the switch IOS operating system, the Device
Manager Web interface firmware and the user switch configuration. Without
the CompactFlash card installed the switch cannot complete powerup or
restart).
If the card is removed with the switch running, the switch will continue to
function; however, the Device Manager Web interface will no longer be
available.
If any changes are made to the switch configuration after the card is removed
(via the CLI or CIP interface), they will be applied and used by the switch
(running configuration); however, the changes will not be saved.
If the CompactFlash card is inserted sometime later, the changes will not be
saved to the card unless new changes are made. Each time a change is made
with the card installed, both the AOP and the Device Manager Web interface
save the entire running configuration to the card.
100BASE-FX ports The IEEE 802.3-2002 100BASE-FX ports (on the 1783-MX08F expansion module)
provide full-duplex 100 Mbps connectivity over multimode fiber (MMF) cables.
These ports use a built-in, small-form-factor fixed (SFF) fiber-optic transceiver
module that accepts a dual LC connector. The cable can be up to 2 km (1.24 mi.) in
length.
Rear panel The rear panels of the switches and expansion modules have latches for
installation on either a DIN rail or a wall. The latches slide outward to position the
switch over the DIN rail and slide inward to secure the switch to a DIN rail. The feet
must be extended when mounting the switch on heavy-duty (35 x 15 mm) DIN rail or
they may be extended for improved ventilation when wall mounting.
Auto-MDIX When connecting the switch to workstations, servers, and routers, straight-through
cables are normally used. However, the automatic medium-dependent interface
crossover (auto-MDIX) feature of the switch is enabled by default and will
automatically re-configure the ports to use either straight-through or crossover
cable type.
The Auto-MDIX feature is enabled by default. When the auto-MDIX feature is
enabled, the switch detects the required cable type (straight-through or crossover)
for copper Ethernet connections and configures the interfaces accordingly.
You can use the command-line interface (CLI) to disable the auto-MDIX feature. See
the online help for more information.
Feature Description