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1. Introduction
24+2G switch
is a high performance web-managed SNMP Layer 2 switch that provides users with 24
10/100Mbps Ethernet and 2 1000Mbps Gigabit ports. This Switch has SNMP management and
remote control capabilities such as “Web Cluster”. The Gigabit module, which can be copper or fiber
media, supports 1000BASE-SX, 1000BASE-LX or 1000BASE-T, allowing users to increase their
network response time at gigabit speeds and with great flexibility. A RS-232 serial port provides an
easy way for installation and initial set-up.
Non-blocking
and maximum wire speed performances are designed on all ports. The Switch not only
supports Auto-Negotiation, but also Auto-MDIX function on all switched 24 10/100M RJ-45 ports
and two Gigabit Copper ports in both half or full duplex mode. The Auto-MDIX function makes it
convenient for the user, because it eliminates cabling on straight-line or cross-line issues.
24+2G switch
provides a convenient way to operate layer 2 management through the browser. The
User-friendly drop-down menu allows the user to easily learn, control and monitor. It supports not
only traditional SNMP function, but also RMON 1,2,3,9 groups for advanced network analysis. A
new management tool called “Single IP” is implemented here to provide the administrator an access
right to enter private IP domain through a single real IP. By this management tool, network manager
can remotely control his far-side servers in private IP domain without being there.
The Switch also supports both port-based VLAN and Tag-based. To increase bandwidth application,
it supports 7 groups with up to 4 ports Trunk, and moreover, these trunk ports provide fair-over
function to provide back up when one or more ports malfunction.
Totally front access
design and full LED status display ease user’s installation and inspection and
maintenance efforts at rack mount environments. The extra LED display reflecting the fan status
allows for quick diagnosis of over-heat issues.
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1.1 Unpacking
Open the shipping carton of the Switch and carefully unpack its contents, the carton should contain
the following items:
z
One
24+2G,
24 port Fast Ethernet Layer 2 Switch.
z
Mounting Kit: 2 mounting brackets and screws
z
Four rubber feet with adhesive backing.
z
One AC power cord.
z
One RS-232 cable
z
This User’s Guide (Disk or CD).
1.2 Installation
You can use the following guidelines when choosing a place to install the Switch.
z
The surface must support at least 3 Kg of weight. Do not place heavy object on the Switch.
z
Visually inspect the power cord and AC power connector.
z
Make sure that there is proper heat dissipation form and adequate ventilation around the Switch.
Desktop or Shelf Installation:
When installing the Switch on the desktop of shelf, the rubber feet included with the device should
first be attached. Attach these cushioning feet on the bottom at each corner of the device. Allow
adequate space for ventilation between the device and the objects around it.
Rack Installation:
The
24+2G
switch can be mounted in an ELA standard-sized, 19-inch rack, which can be placed in a
wiring closet with other equipment. To install, attach the mounting brackets on the switch side panels
(one on each side) and secure them with the screws provided. Then, use the screws provided with the
equipment rack to mount the switch on the rack.
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Power on:
The
24+2G
switch can be used with an AC power supply 90-260V AC, 50-60Hz. The AC power
connector is located at the rear of the unit. The switch’s power supply will adjust to the local power
source automatically and may be turned on without having any or all LAN segment cables connected.
After the power switch is turned on, the LED indicators should respond as fallows:
z
All LED indicators will momentarily blink. This blinking of the LED indicators represents a
reset of the system.
z
The power LED indicator will blink while the Switch loads onboard software and performs a
self-test. After approximately 20 seconds, the LED will light again to indicate the switch is in a
ready state.
z
The Speed, Link/Activity LED indicator may remain ON or OFF depending on every port’s
situation.
z
The fan LED will be vanished if fan works normally, or LED goes RED if fan stop
or failed.
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1.3 Initial set up for management
There are two management ways can be chosen, one is out-of-band management, you work this way
with a PC and connect your PC and switch through RS232 cable. The other way is
in-band-management, you also work with a PC but connect your PC and switch through Ethernet
network no matter local or remotely, or simply directly connect your PC and switch through an
Ethernet cable. Before you activate the management function with the Switch, you have to read the
instructions below carefully and do some proper setting to insure you can access the switch through
your PC, then the switch devices will be replied or responded correctly as you wish.
1.3.1 out-of-band Terminal-mode Management
First, turn on your PC and execute with terminal mode program, such as, if you are in Microsoft
Window environment, you may choose “super terminal “from programs that are listed for
communication. Then follow the steps below:
Step 1:
Set Hyper Terminal parameters on your PC
Bits Rate per second = 9600
Parity = None
Data Bits = 8
Stop Bit = 1
Flow Control = None
Step 2:
After setting the above on the PC, then connect your switch device with RS 232 cable, then type the
“Enter” key, then, the device will response the Main Menu to you and ask you to input the username
and password. The default username is”
admin
” and the password is “
123
” for default. To know more
about operation in this mode, please refer the instructions in chapter 4 of this manual to perform all
the functions you want.
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1.3.2 In-band management through Ethernet
In addition to terminal mode operation,
24+2G
switch also supports in-band management through
browser, this function is much more user-friendly than terminal mode, because it can be operated
through mouse on the PC screen and moreover it can be performed either locally or remotely through
Ethernet.
Before you can access the switch, you have to know following things.
First,
you have to know the
IP Address and Subnet Mask
of both your switch and your PC. The
default value of the
IP Address and Subnet Mask
within the switch can be got through terminal
mode operation described in chapter 4, while the
IP Address and Subnet Mask
of PC can be found
in your PC system.
Second
, in general, within a network, the members in the same network domain must have the same
Subnet IP unless there are routers between them, or, members in the same network domain can’t talk
to each others, so make sure
the communication members in the same domain must have
different
IP Addresses
and same
Subnet Mask.
Third,
if there is a DHCP server in the network domain, be sure to
enable
the DHCP function both on
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