Panasonic GA-AS48T User manual

Installation Guide
 Thank you for purchasing our product.
 This document provides important information about safe and proper
operations of this Ethernet Switch.
 Please read the "Important Safety Instructions" on pages from 3 to 5.
 Any problems or damages resulting from disassembly of this Ethernet
Switch by customers are not covered by the warranty.
I0317-30222 Printed in Japan
GA-AS48T
PN25481-TH
PN25481-MY
PN25481-ID
PN25481-SG
Model No.
 The instruction manuals (Web Version), latest firmware and
SDN application (ZEQUO assist Plus) can be downloaded
from the following URL.
https://panasonic.co.jp/ew/pewnw/english/datadownload/index.html
2-12-7, Higashi-Shimbashi, Minato-ku, Tokyo Japan, 105-0021
©
Panasonic Electric Works Networks Co.,Ltd.
Panasonic Electric Works Networks Co.,Ltd. 2022

Contents
2
Important Safety Instructions
Basic Instructions for the Use of This Product
1 Product Outline
1.1 Feature
1.2 Specifications
1.3 Accessories
1.4 Basic operation
2 Part Names and Functions
3 Installation and Configuration
3.1 Grounding Cable Connection
3.2 Mounting to rack
3.3 Configuration of IP address (Basic)
Troubleshooting
3
6
7
7
8
9
9
10
12
12
13
14
16

3
This chapter contains important safety instructions for preventing bodily injury
and/or property damage. Please read carefully, and follow them at all times.
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 the power cord with wet hand.
Deviation could lead to electric shock, and/or equipment failure.
Do not handle this Ethernet Switch and connection cables during a
thunderstorm.
Deviation could lead to electric shock.
Do not disassemble and/or modify this Ethernet Switch.
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 insert, or drop foreign objects such as metal or combustible things into
Ethernet Switch from the openings or twisted pair ports.
Deviation could lead to fire, electric shock, and/or equipment failure.
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 fire, electric shock, and/or equipment failure.
Do not place this Ethernet Switch in harsh environment (such as near water,
high humid, and/or high dust).
Deviation could lead to fire, electric shock, and/or equipment failure.
Do not place this Ethernet Switch under direct sunlight and/or high
temperature.
Deviation could lead to high internal temperature and fire.
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 Ethernet Switch, 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 what they must do.
This symbol is used to alert
users what they must not do.
WARNING

4
Do not install this Ethernet Switch at the location with continuous vibration or
strong shock, or at the unstable location.
Deviation could lead to falling, injury and/or equipment failure.
Do not put this Ethernet Switch into fire.
Deviation could lead to explosion and/or fire.
Double pole / Neutral fusing
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 keep connecting for a long time, could lead to fire.
Connect this Ethernet Switch to ground.
Otherwise this might cause electrical shocks, misoperations and malfunctions.
Connect the Ethernet Switch via the supplied power cord to the outlet which is
connected to the ground.
If the outlet is not connected to the 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 shock,fire, and/or malfunction.
If the STATUS (Status) LED blinks orange, unplug the power cord since this is a
malfunction.
Deviation, such as keep connecting for a long time, could lead to fire.
Handle the Ethernet Switch carefully so that fingers or hands may not be
damaged by twisted pair port or power cord hook block.
This Ethernet Switch is to be periodically serviced in order to maintain its
performance.
Please assign a product administrator, and be sure to implement periodic mainte-
nance. When doing maintenance, check the inspection chart that is posted on our
website which has the requisite items listed on it.
When using this Ethernet Switch to design systems, use it after applying
appropriate measures such as setting up redundant configurations.
Communication failures might be generated due to causes such as malfunctions or
misoperations while the Ethernet Switch is being used.
WARNING
CAUTION

5
When using this Ethernet Switch for applications which require extremely high
reliability, be careful to expend all possible means to ensure safety and
reliability.
This Ethernet Switch was not designed or manufactured with the intention that it
be used for applications (in use with railways, aviation, and medical care, etc.
where the influence rate due to communication 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 Ethernet Switch be
replaced about five years after it has been installed.
Be careful in regards to environmental restrictions whereby the Ethernet
Switch can be used.
Please isolate the business power lines and communication 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
communication lines which might cause communication glitches.
CAUTION

Basic Instructions for the Use of This Product
For inspection and/or repair, consult the retailer.
Use commercial power supply from a wall socket, which is close and easily accessible to this
Ethernet Switch.
Unplug the power cord when installing or moving this Ethernet Switch.
Unplug the power cord when cleaning this Ethernet Switch.
Use this Ethernet Switch 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 Ethernet Switch. Deviation could lead
to equipment failure.
Do not store and/or use this Ethernet Switch in the environment with the characteristics listed
below.
(Store and/or use this Ethernet Switch 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 Ethernet Switch in place where ambient temperature is from 0 to 50°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 Ethernet Switch.
Blocked ventilator induces the heat accumulation inside, causing equipment failure and/or
malfunction.
If used at a temperature out of the operating temperature range, the protection equipment
becomes activated and the power supply stops.
When using two Ethernet Switches, do not stack them. When you place them side by side,
allow for a space of 20 mm or more between them.
1. Please note that Panasonic shall not bear any liability whatsoever for any damages
(this shall include, but isnotlimited to,lost earnings,lost opportunities, etc.)
which were generated in relation to damages caused by operations and usage,
or the inability to use this Ethernet Switch, whereby the customer does not follow
this Installation Guide.
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

Product Outline
GA-AS48T has 50 ports which are 10BASE-T/100BASE-TX/1000BASE-T compatible ports.
1.1 Feature
7
1
 Ports 1 to 50 (twisted pair ports) are 10BASE-T/100BASE-TX/1000BASE-T
corresponding to auto-negotiation.
 All of the twisted pair ports are equipped with straight/cross cable automatic
detection functions. Straight cables can be used to make interconnections without
distinctions between the terminals and network devices having to be made.
(The factory default is for ports 1 to 48 to have MDI-X be fixed.)
 If equipped with IEEE802.3az (LPI) compatible Energy Efficient Ethernet functions
(hereinafter EEE), and if data is transmitted when linked up, the energy efficient
state will be moved to, whereas each port can suppress power consumption.
Automatically detects the connection states via the equipped energy efficiency
mode, and suppresses power consumption to required levels.
VLAN function allows free grouping of up to 256 VLANs.
The IEEE802.1p compatible QoS function is supported.
Has an Internet Mansion function, which ensures security between each door.
As a factory default, IP address in this Ethernet Switch is not assigned to the device.
The address can be changed by connecting this Ethernet Switch to your PC using
twisted pair cable, if your PC has ZEQUO assist plus installed on it (ZEQUO assist plus
is downloadable from Panasonic
’ s website.)
Due to the loop detection/shutoff function, a port where loop has occurred can be
automatically shut off to prevent loop failures. Moreover, it can be referring the
history of loop on the setting screen.

1.2 Specifications
8
Product Outline
1
Interface Twisted pair port 1–50: RJ45 connector
Transmitting and receiving network system
IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
IEEE802.3ab 1000BASE-T
Energy Efficient Ethernet function
IEEE 802.3az (LPI)
Switching mode Store and Forward method: Forwarding rate
10BASE-T: Max. 14,880 pps/port
100BASE-TX: Max. 148,800 pps/port
1000BASE-T: Max. 1,488,000 pps/port
MAC Address table: Max. 16K entry/unit
Buffer: 1.5MByte
Link Aggregation IEEE802.3ad
Configurable up to 8 groups (Max. 16 ports per group)
VLAN IEEE802.1Q tagging VLAN protocol compatible
(Max. 256 groups including the default VLAN)
Port based VLAN, Internet Mansion function
QoS IEEE802.1p compatible, Supports 4 priority queues
Management method WEB control screen, ZEQUO assist Plus
Others Port Monitoring, Storm control
Power supply AC 100–240V, 50/60 Hz, 1.5 A
Power consumption Normally, Max. 35.0 W, Min. 15.3 W
Storage environment Temperature: -20–70°C, Humidity: 10–90% RH (no condensation)
Fan Installed
Mass (Weight) 4,600 g
External dimensions 44 mm (Height) × 440 mm (Width) × 386 mm (Depth) (Excluding
protruding sections)
Operating environment Temperature: 0–50°C, Humidity: 20–80% RH (no condensation)
Caution: Failure to meet the above conditions may result in fire,
electric shock, breakdown, and/or malfunction.
Please take notice because such cases are not covered by
the guarantee.
Loop detection Ports 1-48: ON, Ports 49,50: OFF (default setting)
Port shut-off time: 60-86400 sec (default setting is 60 sec)
Block mode (default setting), Shutdown mode

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 Ethernet Switch and connect the other end into an electric outlet.
This Ethernet Switch operates at AC 100 - 240 V (50/60 Hz).
When power is supplied, all the LEDs are turned ON.
Subsequently, the POWER (power) LED lights up green, and the STATUS (status) LED
lights up orange and the hardware runs a self-diagnostic.
When it is finished, both the the POWER (power) LED and STATUS (status) LED light
up green, and it operates as a Ethernet Switch.
As this Ethernet Switch succeeds in communicating with a terminal connected to
each port, LED of the port lights up.
When the terminal is not operating normally, for example when power is not
supplied to the terminal, LED is not lighted.
Quantity
[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
PN25481-TH
PN25481-ID
PN25481-MY
PN25481-SG
Power Cord Rating FUSE Rated Current Plug Type
* For the configuration and management methods, please see the PDF
version of the Operating Instructions on Panasonic’s website.
Installation Guide (this document) 1 (*)
Rubber foot 4
Mounting bracket (for 19-inch rack) 2
Screw (for 19-inch rack) 4
Screw (for fixing the main unit and 19-inch rack mount bracket) 8
Power cord 1
* Just the PN25481-TH has 1 Installation Guide in Thai (a total of 2 guides).

Part Names and Functions
10
2
Back panel
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
Connect the ground cable (AWG18: green/yellow) to the ground terminal screw.
10BASE-T/100BASE-TX/1000BASE-T port (ports 1–50)
Connect 10BASE-T/100BASE-TX/1000BASE-T terminals, hubs, repeaters, bridges,
and Ethernet Switches.
Install the device so that the length of the twisted pair cables (CAT5e or above) will
be 100 m or less.
Front panel
Power port
MAC Address label
Serial number label
Power cord hook block
10BASE-T/100BASE-TX/1000BASE-T port
Ground terminal

48
11
POWER (Power) LED
STATUS (status) LED
POWER (Power) LED
Green Light : Power is ON.
Off : Power is OFF.
STATUS (status) LED
Green Light : System is normally operating
Green Blink : After powering on, and the system startup is completed, blinks for
five minutes
Orange Light : System is starting up
Orange Blink : System is malfunctioning
Port LED (Left)
LINK/ACT (ports 1 - 50) LED
Green Light : Link is established.
Green Blink : Data is being sent/received.
Off : No terminal is connected.
Port LED (Left)

Installation and Configuration
3.1 Grounding Cable Connection
12
3
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 during normal operation, 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
Main Power
Switch
earth
terminal
Green/Yellow
Ground cable
1. 18 AWG min.
2. 50 cm

3.2 Mounting to rack
13
Use the two 19-inch rack mount brackets and eight screws (for fixing the rack mount brackets
to the Ethernet Switch) supplied with the mount brackets PN71051 (optional) to fix the mount
brackets to the four holes on each side of the Ethernet Switch. Then securely install the Ethernet
Switch 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.
Right side
Left side
Screw holes for fixing the 19-inch rack mount brackets
Installation on a rack
19-inch rack mount brackets
Front

3.3 Configuration of IP address (Basic)
14
(1) Directly connect the computer which has ZEQUO assist Plus installed on it from
the CD-ROM and this device via twisted pair cables, or connect the computer
and this device to the TCP/IP network in the broadcast domain which the L3
switch routers do not go through, and start up ZEQUO assist Plus.
(2) From the list on the left side of the screen, click the "IP Address Easy Setup"
button to display the screen shown in Screen 1.
(3) Press the "Search" button. This application starts searching for Ethernet
Switches within the broadcast domain. In a few seconds, the screen displays the
list of detected Ethernet Switches. (Screen 2)
(4) From the list of the detected Ethernet Switches, select a device that you want to
configure. In the "Setting item" field in the lower part of the screen, configure
"Network setting", "Switch name", and other items.
(5) Fill in the setting items and press the "Setting execution" button to display the
confirmation screen shown in Screen3. Press "Yes" to configure the settings and
"No" to cancel them.
(6) After the settings are reflected into the device correctly, the message shown in
Screen4 appears indicating the completion of the settings. If an error message
appears, you should search for them again or check the network.
Screen 1
Installation and Configuration
3

15
Screen 2
Screen 3
Screen 4
* For detailed configuration and management methods, and the
settings from the ZEQUO assist Plus and the Web screens, please
see the PDF version of the Operating Instructions on Panasonic’s
website.

Troubleshooting
16
If you find any problem, please take the following steps to check.
LED
The POWER (Power) LED is not lit.
Check if the power cord is disconnected. Please confirm that the power cord is
securely connected to the power port.
Is the Ethernet Switch being used at a temperature between 0 and 50°C?
Use the Ethernet Switch in its operating temperature range.
The Port LED is not lit.
Is the cable correctly connected to the target port?
Is the cable appropriate to use?
Are the terminals which are connected to the appropriate ports, 10BASE-T,
100BASE-TX or 1000BASE-T compatible?
Auto-negotiation may be failing.
Set this device’s port setting or the terminal’s setting to half-duplex.
Communication 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 Auto-negotiation setting.
Is not the utilization ratio of the network to which this Ethernet Switch is
connected too high?
Try separating this Ethernet Switch from the network.
Communication fail.
Is the link-up correct?
Depending upon the devices connected, linking may not occur if the Power
Saving Mode setting and/or the EEE (IEEE802.3az, Energy Efficient Ethernet
functions) setting is “Enabled” . Change the settings as per the following.
1. Change the Power Saving Mode setting to "Half" or "Disabled".
2. Change the EEE (IEEE802.3az) setting to "Disabled".