Panasonic Switch-M8eGi Series User manual

 Thank you for purchasing our product.
 This document provides important information about safe and proper
operations of this Switching Hub.
 Please read the "Important Safety Instructions" on pages from 3 to 5.
 Any problems or damage resulting from disassembly of this Switching Hub
by customers are not covered by the warranty.
I0818-11019 Printed in Japan
Switch-M8eGi
Installation Guide
Model No. PN28080i-TH
PN28080i-MY
PN28080i-ID
PN28080i-SG
2-12-7, Higashi-Shimbashi, Minato-ku, Tokyo Japan, 105-0021
©2019

2
Contents
Important Safety Instructions
Basic Instructions for the Use of This Product
1 Product Outline
1.1 Features
1.2 Specifications
1.3 Accessories
1.4 Basic operation
2 Part Names and Functions
2.1 LED display change
3 Installation and Configuration
3.1 Grounding Cable Connection
3.2 Mounting on a wall
3.3 Mounting to rack
3.4 Configuration of IP address (Basic)
Troubleshooting
3
6
7
7
8
9
9
10
13
15
15
16
17
18
20

3
This chapter contains important safety instructions for preventing bodily
injury and/or property damage. You are required to follow them.
This symbol indicates a potential hazard
that could result in serious injury or death.
 Severity of bodily injury and/or property damage, which could result from incorrect
use of the Switching Hub, are explained below.
 The following symbols are used to classify and describe the type of instructions to
be observed.
Important Safety Instructions
WARNING
CAUTION This symbol indicates safety instructions.
Deviation from these instructions could lead
to bodily injury and/or property damage.
This symbol is used to alert
users to what they must do.
This symbol is used to alert
users to what they must not do.
WARNING
Do not use power supply other than AC 100 - 240 V.
Deviation could lead to fire, electric shock, and/or equipment failure.
Do not handle this Switching Hub and connection cables during a
thunderstorm.
Deviation could lead to electric shock.
Do not disassemble and/or modify this Switching Hub.
Deviation could lead to fire, electric shock, and/or equipment failure.
Do not damage the power cord. Do not bend too tightly, stretch, twist, bundle
with other cord, pinch, put under a heavy object and/or heat it.
Damaged power cord could lead to fire, and/or electric shock.
Do not handle the power cord with wet hand.
Deviation could lead to electric shock, and/or equipment failure.
Do not insert, nor drop foreign objects such as metal or combustible things into
the inside from the openings or twisted pair ports.
Deviation could lead to fire, electric shock, and/or equipment failure.
Do not store or use the Switching Hub in places where it might get splashed
with liquids such as water, in places with a lot of humidity, in places with
conductive dust, or in places where there are corrosive and combustible gases.
Deviation could lead to fire, electrical shock, and/or equipment failure.
Do not place this Switching Hub under direct sunlight and/or high
temperature.
Deviation could lead to high internal temperature and fire.
Do not install this Switching Hub at the location with continuous vibration or
strong shock, or at the unstable location.
Deviation could lead to falling, injury and/or equipment failure.

4
CAUTION
WARNING
Do not put the Switching Hub into fire.
Deviation could lead to explosion and/or fire.
If the device is going to be used in high temperature environments, do not
perform the following operations with bare hands.
- Relocating the installation area, transporting, and attaching, and removing
attachment brackets, etc.
- Connecting and disconnecting twisted pair cables, fiber optic cables, SFP modules
and console cables
- Attaching, and removing power cords
- Operating LED display change buttons
Deviation could lead to injuries or burns, etc. because of high temperatures.
Do not connect equipments other than 10BASE-T/100BASE-TX/1000BASE-T
to twisted pair port.
When connecting to a 10BASE-T device, use a Cat5 or above cable.
Deviation could lead to equipment failure.
Do not insert any other modules into the SFP extension slots (ports 9) except
for our optional SFP modules (PN54022/PN54024).
Deviation could lead to equipment failure.
Check our website for the latest information on supported SFP modules.
Use the bundled power cord (AC 100 – 240 V specifications).
Deviation could lead to electric shock, malfunction, and/or equipment failure.
Unplug the power cord in case of equipment failure.
Deviation, such as keeping connected for a long time, could lead to fire.
Be sure to connect the ground cable.
Otherwise this might cause electrical shocks, misoperations and malfunctions.
Connect the Switching Hub via the supplied power cord to the outlet which is
connected to the ground.
If the outlet is not connected to a ground, connect the ground cable (AWG18:
green/yellow) to the ground terminal screw.
Connect the power cord firmly to the power port.
Deviation could lead to electric fire, shock, and/or malfunction.
If the STATUS (Status) LED blinks orange, unplug the power cord since this is a
malfunction.
Deviation, such as keeping connected for a long time, could lead to fire.
Handle the Switching Hub carefully so that fingers or hands may not be
damaged by twisted pair port, SFP extension slot, console port, or power cord
hook block.

CAUTION
5
Up to two Switching Hubs can be connected. When connecting two Switching
Hubs, use connection brackets and screws (for fixing the connection brackets)
supplied with 19-inch rack mount brackets (two coupled units)( PN71052,
optional) to securely fix the connection brackets to the connection screw holes
on the front and back panels, and then install the Switching Hubs. If the
Switching Hub is not fixed securely, injuries and/or malfunctions could be
caused due to the Switching Hub falling, etc.

Check whether the optical fiber cable connectors are contaminated with dust, etc.
This might cause the optical signal to not be transmitted normally, and cause
misoperations and malfunctions. If they are contaminated, make sure to clean
them off, then connect them to the optical fiber ports.

This Switching Hub is to be periodically serviced in order to maintain its performance.
Please choose a product administrator, and have them be sure to implement
periodic maintenance. When doing maintenance, check the inspection chart that is
posted on our website which has the requisite items listed on it.
When using this Switching Hub to design systems, use it after applying
appropriate measures such as setting up redundant configurations.
Communications failures might be generated due to causes such as malfunctions or
misoperations while the Switching Hub is being used.

When using this Switching Hub for applications which require extremely high
reliability, be careful to expend all possible means to ensure safety and reliability.
This Switching Hub was not designed nor manufactured with the intention that it
be used for applications (in use with railways, aviation, and medical care, etc.
whereas the influence rate due to communications failures is extremely high in
regard to systems that directly affect systems and human lives) which require
extremely high reliability.
Be aware of glitches which are caused in the usage environments such as
age-related degradation, etc.
This may vary depending upon conditions such as utilisation rates and usage
environments, but performance might decrease due to the age-related
degradation, etc. of components. It is recommended that this Switching Hub be
replaced about five years after it has been installed.

Be careful in regards to environmental restrictions whereby the Switching Hub can be used.
Please isolate the business power lines and communications lines. Isolate distribution
lines and other distribution lines, and low current power lines, optical fiber cables,
metallic water conduits, and gas conduits, etc. Noise may be generated in the
communications lines which might cause communications glitches.
 Be careful when performing the following operations since the device will be at high
temperatures immediately after it has been energized or the power has been shut off.
- Relocating the installation area, transporting, and attaching, and removing
attachment brackets, etc.
-
Connecting and disconnecting twisted pair cables, fiber optic cables, SFP modules and console cables
- Attaching, and removing power cords
- Operating LED display change buttons
Deviation could lead to injuries or burns, etc. because of high temperatures.

Basic Instructions for the Use of This Product
2. The contents described in this document may be changed without prior notice. For the
latest version, please refer to the Panasonic website.
3. For any question, please contact the retailer where you purchased the product.
6
1. Please note that Panasonic shall not bear any liability whatsoever for any damages
(this shall include lost earnings, lost opportunities, etc. but this is not restricted to these
things) which were generated in relation to damages caused by operations and usage,
or the inability to use this Switching Hub, whereby the customer does not follow
this Installation Guide.
For inspection and/or repair, consult the retailer.
Use commercial power supply from a wall socket, which is close and easily accessible to this
Switching Hub.
Unplug the power cord when installing or moving this Switching Hub.
Unplug the power cord when cleaning this Switching Hub.
Use this Switching Hub within the specifications. Deviation could lead to malfunction.
Do not touch the twisted pair cable modular metal terminals which are connected to RJ45
connectors (twisted pair ports) or the connectors, nor place them near electrically-charged
objects. Static electricity could lead to equipment failure.
Do not put the modular plug of the connected twisted pair cable on objects that can carry
static charge, such as carpet. Do not place it in the proximity. Static electricity could lead to
equipment failure.
Do not put a strong shock, including dropping, to this Switching Hub. Deviation could lead to
equipment failure.
Before connecting a console cable to the console port, discharge static electricity, for example
by touching metal appliance (do not discharge by touching this Switching Hub).
Do not store and/or use this Switching Hub in the environment with the characteristics listed
below.
(Store and/or use this Switching Hub in the environment in accordance with the
specification.)
- High humidity. Possible spilled liquid (water).
- Dusty. Possible static charge (such as carpet).
- Under direct sunlight.
- Possible condensation. High/low temperature exceeding the specifications environment.
- Strong vibration and/or strong shock.
Please use this Switching Hub in place where ambient temperature is from 0 to 60°C.
Failure to satisfy the conditions above may result in a fire, electric shock, equipment failure,
and/or malfunction. Such events are not covered by the warranty.
Do not block the ventilator of the Switching Hub.
Blocked ventilator induces the heat accumulation inside, causing equipment failure and/or
malfunction.
If any module other than the optional SFP extension modules(PN54022/PN54024) is inserted
into the SFP extension slot,operation is not guaranteed.For the latest information about
compatible SFP extension modules,check our website.
When using two Switching Hubs, do not stack them. When you place them side by side, allow
for a space of 20 mm or more between them.

Product Outline
Switch-M8eGi is an all Giga bit Ethernet Switching Hub with management function
having 8 ports of 10/100/1000BASE-T and two pairs of 10/100/1000BASE-T port and
SFP extension slot, one of which is selectable.
1.1 Features
1
7
Has wire speed layer 2 switching functions.
Fanless design solves noise problem or fan failure.
Due to the loop detection/shutoff function, a port where loop has occurred can be
automatically shut off to prevent loop failures. When a port is shut off and recovered
automatically, SNMP trap can be sent to notify the incident to the administrator.
Moreover, the port with a loop can be identified by loop notification on the LEDs on
the main unit and referring the history of loop on the setting screen.
Has a loop detection history function, which notifies when a loop occurs with the
corresponding LED and enables a network administrator to identify the looped port
after the loop is removed.
Embedded power saving mode detects the connection status automatically and saves
power consumption to minimum.
Factory default : Disable
Power consumption can be suppressed by switching off the port LEDs (left) via the
ECO mode LED functions.
Ports 1 to 8 are auto negotiation-ready 10/100/1000BASE-T ports. Their speed and
communication mode can be changed by configuration.
Port 9 can be exclusively used as an SFP extension slot.
All twisted pair ports support straight/cross cable auto sensing function. Simply
connect devices with straight cables, whether it is a terminal or a network device.
(This function does not work if the port communication configuration is set at Fixed
or Link Aggregation. Ports 1 to 7 are set at MDI-X. (default))

IEEE802.1Q VLAN tagging is supported, and a maximum of 256 VLANs can be registered.
The IEEE802.1p compatible QoS function is supported.
Has an Internet Mansion function, which ensures security between each door.
Has a port grouping function, which groups ports that are allowed to communicate
with one another to limit communications between different groups.
Equipped with energy efficient Ethernet (EEE) conforming to IEEE802.3az(LPI). When
there is no data transmission at link up, the energy-saving state automatically starts
so that power consumption can be reduced on each port.
Factory default : Disable
The IEEE802.1X compatible user authentication function (EAP-MD5/TLS/PEAP) is
supported.
Each single port supports IEEE 802.1X, Web, and MAC authentication protocols,
eliminating the need for individually setting the ports’ authentication parameters.
Supports ZEQUO assist Plus. Processes from introduction to maintenance can be
performed easily.

1.2 Specifications
8
Product Outline
1
ZEQUO assist Plus (Supplied CD-ROM)
SNMP v1/v2c/v3, Telnet, SSH (v2), WEB, CLI
Other
Link aggregation
Interface
Switching mode Store and Forward method: Forwarding rate
10BASE-T: Max. 14,880 pps/port
100BASE-TX: Max. 148,800 pps/port
1000BASE-T/1000BASE-X: Max. 1,488,000 pps/port
MAC Address table: Max. 8K entry/unit
Buffer: 512K Bytes/unit
＊EAP frame,BPDU frame transmission
IEEE802.3ad Link aggregation function (STATIC)
Configurable up to 5 groups (Max. 4 ports per group)
VLAN IEEE802.1Q tagging VLAN (256 groups max.)
Port based VLAN, Internet mansion function
QoS
Port monitoring
Management method
Communication control is available only for ports in the same group.
(Up to 256 groups can be registered.)
Port grouping functions
1:n
Loop detection Ports 1-7: ON, Ports 8, 9: OFF (default setting)
Port shut-off time: 60 -86400 sec (default setting is 60 sec)
Port history hold time: 3 days
Power supply AC 100-240 V, 50/60 Hz, 0.5 A
Power consumption Normally, Max. 6.2 W, Min. 2.4 W
Storage environment
Mass (Weight)
External dimensions 44 mm (Height) × 210 mm (Width) × 130 mm (Depth) (Excluding
protruding sections)
Operating environment
Supports the IEEE802.1X authentication(MAC-based, port-based)
MAC authentication, WEB authentication, Triple authentication
Storm control function, multi-cast address group registration function,
DDM function, IPv6 supported
IEEE802.1p compatible, Supports 4 priority queues
Temperature: 0–60°C, Humidity: 20–80% RH (no condensation)
(Warning) Failure to satisfy the conditions above may result in a
fire,electric shock,equipment failure,and/or malfunction.
Such events are not covered by the warranty.
Temperature: -20–70°C, Humidity: 10–90% RH (no condensation)
Fan Not installed
＊For detailed specifications,refer to the product’ s specifications.
Twisted pair port 1-8:RJ45 connecter
Transmitting and receiving network system
IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
IEEE 802.3ab 1000BASE-T
Energy Efficient Ethernet function
IEEE 802.3az(LPI)
SFP extension slot port 9
Transmitting and receiving network system
IEEE 802.3z 1000BASE-X
Note:CanbeusedasanSFPexclusively
SFF-8472 (DMI:Diagnostic Monitoring Interface)
Console port:RJ45 connecter
RS-232C(ITU-TS V.24)
1,100g

1.3 Accessories
9
Please be sure to confirm the content.
Please contact our distributor if any of the contents are insufficient.
1.4 Basic operation
This Product does not have a power ON/OFF switch. Connect the supplied power
cord to this Switching Hub and connect the other end into an electric outlet.
This Switching Hub operates at AC 100 - 240 V (50/60 Hz).
When power is supplied, all the LEDs are turned ON.
Then, PWR LED (Power) lights in green, STATUS/ECO LED (Status/ECO mode) lights
in orange, and self-diagnosis of hardware is executed.
On completion of self-diagnosis, PWR LED (Power) and STATUS/ECO LED
(Status/ECO mode) light in green, and the Switching Hub starts operation as a
Switching Hub.
When this Switching Hub successfully communicates with a terminal connected to a
port, the Port LED lights up.
When the terminal is not operating normally, for example when power is not
supplied to the terminal, the Port LED does not light up.
When the Eco mode is set,Port LED lamps do not light up.
For configuration and management method, please see the PDF version
Operating Instructions in CD-ROM.
[Optional accessories]
[Power Cord]
The following power cords are supplied as per the intended nation of delivery.
Locale
Thailand 250 VAC 6 A TIS166-2549-
Indonesia 250 VAC 10 A
250 VAC 10 A
250 VAC 5 A
CEE7/7
BS1363
BS1363
-
13 A
5 A
Malaysia
Singapore
Product Number
PN28080i-TH
PN28080i--ID
PN28080i--MY
PN28080i--SG
Power Cord Rating FUSE Rated Current Plug Type
Installation Guide (this document) 1
CD-ROM (PDF version of Operating Instructions, ZEQUO assist Plus) 1
Rubber foot 4
Wall mount bracket 2
Screw (for fixing the wall mount brackets to the Switching Hub) 8
Power cord 1
* Just the PN28080i-TH has 1 Installation Guide in Thailand (a total of 2 guides).
Quantity
(*)
PN54024-XX 1000BASE-LX SFP Module (i)
The XXs are identical to the intended nation of delivery codes.
PN54022-XX 1000BASE-SX SFP Module (i)

10
Power port
Connect the supplied power cord to this port and connect the other end into an
electric outlet.
Power cord hook block
If the supplied power cord is hanged to this block, the cord becomes hard to pull
out from the power port.
Ground terminal
Only qualified personnel should install minimum 18AWG green-and-yellow stranded
copper wire to Ground terminal screw.
10/100/1000BASE-T port (ports 1–8)
Devices such as 10/100/1000BASE-T terminal, hub, repeater, bridge, and Switching
Hub can be connected to this port. Install the device so that the length of twisted
pair cable (CAT5e or above) becomes 100 m or less.
SFP extension slot (port 9)
Install SFP extension module here.
SFP port supports only the full duplex communication.
Use our optional RJ45-DSub 9-pin console cable (PN72001) for the console cable.
Console port
Transmission mode : RS-232C
Transmission speed : 9,600 bps
Stop bit : 1 bit
Flow control : None
Emulation mode : VT100
Data length : 8 bits
Parity control : None
Transmission connector : RJ45
Front panel
Back panel
Enlarged view on the next page
Explanation label
10/100/1000BASE-T port
Console port (RJ45)
LED display change button
SFP extension slot
troprewoP
lebalrebmunlaireS lanimretdnuorG
Power cord hook block
Part Names and Functions
2
MAC address label

11
POWER (Power) LED
Green Light : Power is ON.
Off : Power is OFF.
ANY/COL. (Collision) LED
Orange Light : During half-duplex operation, packet collision is occurring in either
port.
STATUS/ECO (Status/ECO mode) LED
Green Light : Operating in status mode.
Green Blink : Operating in ECO mode.
All Port LEDs (left) are turned off.
Orange Light : Starting
Orange Blink : Malfunction (Contact the shop.)
Off : Power is OFF.
GIGA (GIGA mode) LED
Green Light : Operating in GIGA mode.
100M (Speed mode) LED
Green Light : Operating in Speed mode.
FULL (DUPLEX mode) LED
Green Light : Operating in DUPLEX mode.
LOOP HISTORY (Loop History mode) LED
Green Light : Operating in Loop History mode.
Green Blink : Loop is occurring, or occurred within the last 3 days.
Power LED
Collision LED
Status/ECO mode LED
GIGA mode LED
Speed modeLED
DUPLEX mode LED
Loop History mode LED
LED display change
button

12
Port LED
Left
Right
Display mode
STATUS/ECO
Behavior Description
Green Light Link is established.
Green Blink Transmitting and receiving data.
Off No device connected.
Table1. Ports and Port LED lamps 1 to 9 correspond as shown below.
GIGA Green Light Link is established at 1000 Mbps.
Off Link is established at 100 Mbps or
10 Mbps, or no device is connected.
100M Green Light Link is established at 100 Mbps.
Off Link is established at 1000 Mbps or
10 Mbps, or no device is connected.
FULL Green Light Link is established at full-duplex.
Off Link is established at half-duplex or
no device is connected.
-
Orange Light Shutting down by loop detection.
Off Not shutting down by loop
detection.
LOOP HISTORY Green Light Loop has been detected within the
last 3 days.
Off No loop detection history.
Part Names and Functions
2
Port LED (Left)
Port LED (Right)

2.1 LED display change
●Display style set by the LED display change button
13
You can display the following items using the LED display switch button.
Display for the connection with a connected terminal (Status mode),Display for
the 1000 Mbps transmission rate (GIGA mode),Display for the 100Mbps or 10
Mbps transmission rate (Speed mode),Display for the full-duplex or half-duplex
transmission system (DUPLEX mode),Display for ports with a loop history (Loop
history mode),All port LED lamps can be turned OFF (ECO mode).
●Two types of Base modes and each mode
The mode at the start is called “Base mode.”
There are two types of Base modes:Status mode (factory default setting) and ECO
mode.You can change the Base mode by holding down the LED display switch
button (for at least 3 sec).
When the Base mode is changed normally,all STATUS/ECO,GIGA,100M,and FULL
LED lamps light up at the same time.When you release the button,the Base mode is
changed to the selected mode.
If the mode is changed to the GIGA mode,Speed mode,DUPLEX mode,or loop
history mode and the LED display switch button is not used for one minute or
longer,the mode automatically returns to a Base mode (Status mode or ECO mode)
.The Base mode is maintained even after the power is turned OFF.
Indication on the front panel and LED lamps
LED display change button

14
Switch two types of Base modes and their LEDs in the following way:
When Base mode is Status mode (factory default setting)
When Base mode is ECO mode
Switch Base mode (keep pressing "LED DISPLAY
CHANGE BUTTON" over 3 seconds)
Press "LED DISPLAY CHANGE BUTTON" manually.
Automatic
Automatically returns to Base mode after 1 minute.
Boot
Status mode
(Base mode) GIGA mode Speed mode DUPLEX
mode
Loop History
mode
●Loop detection/shutoff function and loop history function
Press "LED DISPLAY CHANGE BUTTON" manually.
Automatic
Automatically returns to Base mode after 1 minute.
Boot
ECO mode
(Base mode)
Status
mode
GIGA
mode
Speed
mode
DUPLEX
mode
Loop history
mode
※The Base mode is maintained even after the power is turned OFF.
LED lamps for each mode and LED lamps for ports 1 to 9 correspond as shown in Table 1 (see page 12).
Part Names and Functions
2
Turns on the port LED with a orange light when a loop occurs in the corresponding port.
The Loop shutoff mode has the following 2 types of modes.
- Block mode (factory default)
When loops are detected, the port statuses are automatically blocked, and just the
specified packets which include the loop detection packets will be transmitted and
received.
- Shut-down mode
When loops are being detected, the ports will be automatically linked down, and none
of the packets will be transmitted and received.
*Just the loop detection packets from 30 seconds before the set recovery time will
automatically be transmitted and received.
During loop is occurring, or if loop has occurred within the latest 3 days, LOOP HISTORY
LED blinks to notify this. It is possible to switch loop detection setting (OFF/ON) by using
a console cable (for detail, see the attached CD-ROM). The default setting is ON.
If you wish to clear LOOP HISTORY LED, turn OFF once the power supply of the
Switching Hub and turn it ON again.
Then, loop detection history is deleted.
The Switching Hub can hold up to 64 loop history logs.

Installation and Configuration
15
3
3.1 Grounding Cable Connection
The chassis of the equipment must be grounded properly so that the lightning can flow to
the ground, which improves the capability of the chassis for resisting the electromagnetic
interference.
1. Ensure that the grounding cable is connected correctly so that the equipment is
protected against lightning and interference. The correct connection of the grounding
cable is an important measure to ensure the human safety.
2. Connect the chassis to the ground by using a grounding cable. The grounding resistance
must be smaller than 0.10 ohms and the gauge of the grounding cable must be no less
than 18 AWG and the length is 50 cm.
3. The ground installed screw shall comply with 3.5mm minimum in nominal thread
diameter, and engage at least two complete threads into metal chassis with appropriate
fixing hardware like washer.
4. The grounding cable shall not be removed while normal operating, servicing or
maintenance.
5. Installation steps:
Step 1: Ensure the detachable power supply cord removed.
Step 2: Use the screwdriver to turn the screws on the earth ground screw point.
Step 3: Strip one end of the ground wire to the ground hole of system.
Step 4: Connect the other end of the ground wire to a suitable grounding point of
building at your side.
Figure shows the grounding points.
Back panel
Grounding point
Building
Mains Power
Switch
earth
terminal
Green/Yellow
Ground cable
1. 18 AWG min.
2. 50 cm

3.2 Mounting on a wall
Use the two wall mount brackets and eight screws (for fixing the wall mount brackets to the
Switching Hub) supplied with the mount brackets PN71053 to fix the mount brackets to the
four holes on each side of the Switching Hub. Then position the front panel of the device so
that it is perpendicular and facing upwards, or facing downwards, and secure the device
securely to the wall surface with the screws which the customer has prepared.
It is recommended that the screws which are to be used with the screw retainers on the wall
have head sizes with diameters of 9.4 mm or greater.
Right side
Left side
Installation and Configuration
3
16
Screw holes for wall mount brackets

3.3 Mounting to rack
Use the two 19-inch rack mount brackets and eight screws (for fixing the rack mount brackets
to the Switching Hub) supplied with the mount brackets PN71051 (optional) to fix the mount
brackets to the four holes on each side of the Switching Hub. Then securely install the Switching
Hub onto the rack using the four screws (for a 19-inch rack mount) supplied with the mount
brackets PN71051 (optional) or the screws supplied with the rack.
Up to two Switching Hubs can be connected. When connecting two Switching Hubs and
installing them onto a rack, use the two 19-inch rack mount brackets and eight screws (for fixing
the rack mount brackets to the Switching Hub) supplied with the mount brackets PN71052
(optional) to fix the mount brackets to the four holes on one side of the Switching Hubs. Then
use the two connection brackets and eight screws (for fixing the connection brackets) supplied
with the mount brackets P71052 to securely fix the connection brackets to the connection
screw holes on the front and back panels, and then install the Switching Hubs onto the rack.
Right side
Left side
Front
Installation on a rack (one unit)
Installation on a rack (two units connected)
Back
Back
Front
Front
17
Screw holes for fixing the 19-inch rack mount brackets
Connection screw hole Connection screw hole
19-inch rack mount brackets
Connection brackets 19-inch rack mount brackets19-inch rack mount brackets

3.4 Configuration of IP address (Basic)
(1) Connect this Switching Hub and PC with a RJ45–DSub 9-pin console cable and
start up the terminal emulator (hyper terminal, etc.).
(2) Pressing Enter key 3 times opens Login screen. Enter Login name and Password
(the default is "manager" for both). (Screen 1)
(3) Main Menu is displayed. (Screen 2)
Press "B" to select [B]asic Switch Configuration. The next hierarchical menu is
displayed. (Screen 3)
(4) Press "I" to select System [I]P Configuration. The screen to enter some addresses
is displayed. (Screen 4)
(5) Press "I" to set an IP Address, press "M" to set a Subnet Mask, or press "G" to set
a Default Gateway. Then enter the specified address. (Screen 4)
(6) After completing the settings, select [Q]uit to previous menu twice to return to
Main Menu (Screen 2). Here, select Save Configuration to [F]lash (Screen 5)
and the command prompt changes to "Save current configuration? (Y/N)." Press
"Y" to save the settings.
(7) From terminals connected to network, confirm that the settings are reflected
correctly by executing PING test for entered address.
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Installation and Configuration
3

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Screen 1 Screen 2
Screen 3
Screen 5
Screen 4
* For the following, please see the PDF version Operating Instructions
in CD-ROM.
- Detailed configuration and management methods using CLI/WEB.
- Configuration and management method from ZEQUO assist Plus.

Troubleshooting
If you find any problem, please take the following steps to check.
LED
The POWER LED (Power) is not lit.
Check if the power cord is disconnected. Please confirm that the power cord is
securely connected to the power port.
The Port LED is not lit in Status mode.
Is the cable correctly connected to the target port?
Is the cable appropriate to use?
Is the terminal connected to the relevant port conforming with 10BASE-T,
100BASE-TX, or 1000BASE-T standard?
Auto-negotiation may have failed.
Is the correct Port LED display mode selected using the LED display switch
button?
The Port LED (Right) lights in orange.
Loop is occurring. By removing the loop, orange LED will be turned off.
LOOP HISTORY LED Blinks in orange.
This is to notify that there is a port in which a loop is occurring, or has been
removed within 3 days.
Communications are slow.
Are the communication speed and mode settings correct?
If the proper communication mode signal cannot be obtained, apply
half-duplex mode.
Please reconfirm autonegotiation setting.
Do not set forced full-duplex for the equipment that the Switching Hub is
connected to.
Is not the utilization ratio of the network to which this Switching Hub is
connected too high?
Please try to separate the equipment from the network.
If communication is disabled
Are the equipment linked up?
If Embedded power-saving mode is set to “Full” ,change it to “Half” or
“Disabled” .
Is any Port LED lamp (right) lit in orange?
If a Port LED lamp (right) is lit in orange,the respective port is shut off by the
loop detection/shutoff function. Cancel loop connection under the port and
then wait for the period set for the recovery time for automatic recovery for
loop detection/shutoff or cancel port shutoff from the setting screen.
 Is the Switching Hub being used at a temperature between 0 and 60°C?
Use the Switching Hub in its operating temperature range.
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