Power Supply
Power problems can be the cause of serious failures and down-
time in your network. Ensure that the power input to your system
is clean and free from sags and surges to avoid unforeseen net-
work outages. We recommend that you install power condition-
ing, especially in areas prone to black outs, power dips and
electrical storms.
The unit is intended to be grounded. Ensure it is connected to
earth ground during normal use. Installing proper grounding helps
to avoid damage from lightning and power surges.
Power Up
Use the following sequence to power up the Baseline 10/100
Switch 24 Port 10BASE-T/100BASE-TX plus 1-Port 1000BASE-T:
Check the network connections and cables.
Connect the power supply cable to the appropriate power
socket on the rear panel of the unit; refer to 7 or 8.
Connect the plug to the power supply outlet socket and
switch on the power supply at the socket. If you are using
the Advanced Redundant Power System, ensure it is pow-
ered on.
When the switch is powered on, the Power/Self Test LED should
first flash green, then stay lit. If it does not, refer to 6.
Spot Checks
At frequent intervals you should visually check the Baseline
10/100 Switch 24 Port 10BASE-T/100BASE-TX plus 1-Port
1000BASE-T. Regular checks can give you an early warning of a
possible failure; any problems can then be attended to when
there will be least effect on users. Check the following:
If you experience any problems operating the Baseline 10/100 Switch
24 Port 10BASE-T/100BASE-TX plus 1-Port 1000BASE-T, refer to
“Problem Solving” on page 4.
Introduction
The Baseline 10/100 Switch 24 Port 10BASE-T/100BASE-TX plus
1-Port 1000BASE-T is supplied with two mounting brackets and
four screws. These are used for rack mounting the unit. When
mounting the unit, you should take note of the guidelines given
in “Positioning the Switch” on page 3.
Rack Mounting the Units
The Baseline 10/100 Switch is 1U high and will fit a standard
19-inch rack.
CAUTION: Disconnect all cables from the unit before
continuing. Remove the self-adhesive pads from the
underside of unit, if already fitted.
1Place the unit the right way up on a hard, flat surface with
the front facing towards you.
2Locate a mounting bracket over the mounting holes on one
side of the unit.
3Insert the two screws supplied in the mounting kit and fully
tighten with a suitable screwdriver.
4Repeat the two previous steps for the other side of the unit.
5Insert the unit int o the 19 -inc h rack a nd se cure with suita ble
screws (not provided).
6Reconnect all cables.
Refer to the information about LEDs given earlier in this guide to
see if the problem can be identified and rectified. Here are some
common problems that can occur:
Link Status LED not lit for a port that has a connection.
There is a problem with this connection. Check that:
The device being connected to is powered on and operating
correctly.
The cable is connected at both ends.
That you are using a TP cable that is:
■‘Straight through’, to connect an MDIX port to an MDI
port.
■‘Cross-over’, to connect an MDIX port to an MDIX port,
or an MDI port to an MDI port.
The cable is not damaged.
If the connection is to a workstation, that the workstation’s
network interface is installed and configured correctly.
All Activity LEDs appear to be lit continually. There may be
broadcast storms on the network. Remove port connections one
at a time, waiting a few seconds between each port. If the LEDs
go off after removing a port connection, the device that was
connected to that port is introducing an excessive amount of
broadcast frames to the network (some pieces of network
equipment operate by sending out broadcast frames regularly).
Refer to the docum enta tion t hat a ccomp anies the dev ice fo r
information on disabling the broadcast operation.
If the problem persists and the unit still does not operate
successfully, contact your supplier with the following information
before returning the unit:
Product number and serial number (printed on a label sup-
plied with the unit)
A brief description of the fault
Cabling Check that all external cabling connections are
secure and that no cables are pulled taut.
Cooling fans Where possible, check that the cooling fans are
operating by listening to the unit. The fans are
fitted near to the front right hand side of the
unit (when viewed from the front).
MOUNTING KIT INSTRUCTIONSPROBLEM SOLVING4