ERNITEC ELECTRA-T24 User manual

User Manual
ELECTRA-T24
24 Gigabit Managed PoE Switch

Installation manual introduction
The Product installation manual mainly describes ELECTRA-T24 PoE switch
hardware features, installation methods, and precautions during the
installation
This manual includes the following chapters:
Chapter 1: Product Introduction. Briefly describes the basic features of the
switch and the appearance details.
Chapter 2: Product Installation. Guide the switch hardware installation
methods and precautions.
Chapter 3: Hardware Connections. Guide the connection between switches
and other devices and precautions.
Chapter 4: Technical Specifications.
NOTE:To avoid potential device damage and personal injury, read the related
information in this manual before installing the device.
Agreement
The term "switch" mentioned in this manual, unless otherwise specified, refers to
24-port full Gigabit managed PoE switch, hereinafter referred to as ELECTRA-T24
Some pictures for the schematic, the product itself and pictures may be
different
This icon indicates the items to be cautioned in the operation. If the operation is
wrong, the equipment may be damaged and other adverse consequences.

Chapter 1 Product Introduction
1.1Product introduction
ELECTRA-T24 is managed PoE switch for security transmission and WIFI
coverage, meet the WIFI AP, IP-camera, WIFI bridge, IP phones and other
types of equipment PoE power supply needs. Products using a new
generation of high-performance hardware and software platforms, providing
flexible, cost-effective full Gigabit access and uplink ports, support for Layer 3
routing protocols, complete security mechanisms, improved ACL / QoS
strategy and rich VLAN capabilities, it is easy to manage and maintain , meet
the users' requirements for network equipment easy to manage, high security
and low cost. It is suitable for network access, aggregation and core
applications in campus, hotel and enterprise campus.
PoE (Power over Ethernet) refers to the power over Ethernet technology. It
refers to the transmission of data signals to some IP-based terminals (such as
IP phones, wireless access point APs, network cameras, etc.) and also
provide DC power supply technology. These devices that accept DC power
supply are called powered devices (PDs)
1.2 Packing list
Open the package carefully check the following list
Commodity
Quantity
Description
PoE switch
1pcs
No
Power cord
1pcs
Optional
Bracket
2pcs
Fixed on rack mount
User manual
1pcs
Guide users to install switch
1.3 Appearance
Front Panel
Including indicators, RJ45 port, shortcut buttons, RST button, SFP port, CONSOLE port, as
shown in Figure 1.1 below

Indicators
ELECTRA-T24 The indicator working status is shown as the following table
Indicators Title Color
Work
status
Description
POWER Power
indicator Red
Solid Power is normal
Off
No power, the power switch is not
turned on, power supply is
abnormal
POE
POE
power
indicator
Red
Solid
The corresponding RJ45 port is
connected to the powered device
and the power supply is normal
Off
The corresponding RJ45 port is not
connected to the powered device or
the power supply is abnormal
LINK/ACT Connection
indicator Green Blinking A valid link is established
Off An invalid link is established
SYS System
indicator Green
Blinking System is functioning properly
Off
System is functioning improperly
Software is damaged
G1-4 SFP
indicator Green
Blinking
A valid link is established on the
SFP port
Off
An invalid link is established on the
SFP port
Shortcut button
QOS: Improve video data processing capabilities and improve the
monitoring of Caton and Mosaic phenomena in the network
CCTV: 1-8 port rate down to 10Mbps, but the transmission distance up to
250 meters
VLAN: Isolating ports 1-24 from each other, suppress network storms
effectively and improve network performance
AI power supply: Detect PD, power failure and restart dead equipment
RJ45 Port
ELECTRA-T24 with24 10/100/1000Mbps PoE port，all ports support IEEE802.3af
and IEEE802.3at standard
When the switch mode of operation is CCTV mode, 1-8 port can support 250 meters
power supply with 10Mbps speed rate
SFP Port
ELECTRA-T24 provide four Gigabit SFP optical ports (G1~G4), can be inserted into
the Gigabit SFP module
RST Button
When the switch is powered on, press the button with the needle to release the
device and enter the restarting state. When the SYS lamp restarts, the device
restarts. When the switch is powered on, press and hold the button for more than 5s
to release the button and enter the reset state. When SYS is re-lit, the device is
reset successfully
Console port

Console port used to connect to computer or other terminal to manage or configure
the switch.
Back Panel
Including: power socket, power switch, ground terminal
l
Power socket
A 100-240VAC 50/60 Hz power receptacle for accommodating the supplied
power cord
Power switch
Turn on/off the power switch, control the power switch
Ground terminal
Please use the grounding wire to prevent lightning. To avoid product lightning
strikes and extend product life
Chapter 2 Installation
2.1 Installation Precautions
Note：To avoid improper use of equipment damage and personal
injury, please observe the following precautions
Installation safety precautions
The power should be kept off during the installation, while wearing anti-
static wrist, and to ensure well touch between anti-static wrist and skin to
avoid potential safety hazard;
The switch just work normally when it is powered by the correct power
supply. Make sure that the power supply voltage matches the voltage
indicated by the switch
Before powering on the switch, make sure that the power circuit is not
overloaded, which may affect the normal operation of the switch and even
cause unnecessary damage
To avoid the risk of electric shock, do not open the case while the switch
is working. Do not open the case even when it is not powered
Before cleaning the switch, unplug the switch from the power cord and do
not wipe it with wet cloth. Do not wash it with liquid

Temperature and humidity
To ensure the long-term stability working of the switch , please maintain a
certain temperature and humidity environment. High or low humidity
easily lead to leakage of insulation materials, deformation and even the
corrosion of metal parts, the temperature is too high will accelerate the
aging process of insulating materials, seriously affecting the service life of
equipment. The normal operation of this series of switches and storage
temperature / humidity are as follows
Environmental
description
temperature
Relative humidity
Working
environment 0℃~40℃10%～90% RH no
condensation
Storage
environment -40℃～70℃5%～90% RH no
condensation
Altitude
Products with this logo are only for safe use in areas below 2000m altitude
Dust-proof
Dust on the switch surface will cause electrostatic adsorption, poor contact of
the metal contacts. Although the device itself has done some measures in
anti-static, but when the static electricity exceeds a certain intensity, it will still
cause fatal damage to the electronic components on the internal circuit board.
In order to prevent static electricity from affecting the normal operation of the
equipment, please note the following:
Regular dust, keep the indoor air clean;
Make sure the equipment is well grounded to ensure smooth transfer of static
electricity
Electromagnetic interference
Electromagnetic interference have an impact on the device capacitance,
inductance and other electronic components by capacitive, inductive coupling,
impedance coupling and other conductive, in order to reduce the adverse
effects caused by electromagnetic interference, please note the following：
Power supply system to take the necessary anti-grid interference measures;
Switches should be far away from high-frequency high-power, high-current
devices, such as wireless transmitters;
If necessary, take electromagnetic shielding measures
Lightning protection
When a lightning strike occurs, a strong current will be generated in an instant
cause fatal damage to electronic equipment. To achieve better lightning
protection, please note the following：
Make sure the rack and the ground to maintain good contact;
Make sure the power outlet is in good contact with the earth;
Reasonable wiring, to avoid the internal sense ray;
Outdoor wiring, it is recommended to use the signal lightning protection device

Installation desk requirement
Regardless of whether the switch is installed in a rack or on another horizontal
workbench, be aware of the following:
Make sure the rack or workbench is stable, strong, and can withstand at least
5.5Kg weight;
Make sure the rack has a good cooling system, or maintain good indoor
ventilation;
Make sure the rack is well grounded, the power outlet and switch are within
1.5 meters
Prepare tools for installation
You may need to use a screwdriver during installation, electrostatic wrist strap,
fiber optic cable and other tools to prepare your own
2.2 Product installation
19-inch standard rack installation
ELECTRA-T24 is designed according to the standard 19-inch rack size, you
can easily install to the rack, the specific installation steps are as follows:
First, Check rack grounding and stability；
Second, Install the two L-brackets in the accessory on each side of the switch
panel and secure with the screws provided in the accessory
Third, place the switch in an appropriate place in the rack and be supported
by the bracket. Screw the L-shaped bracket to the guide groove fixed on both
ends of the rack to ensure that the switch is stable and horizontally installed
on the rack
Note：
Good grounding rack is anti-static equipment, anti-leakage, lightning
protection, anti-jamming important guarantee, so to ensure that the rack
ground wire properly installed;
Installation equipment within the rack from the bottom up, to avoid
overload installation;
Avoid placing other heavy objects on switch to avoid accidents;
Ensure heat dissipation and air circulation.

Chapter3 Hardware connection
3.1RJ45 port connection
Connect the RJ45 port of the switch and the corresponding network device via
cables, the POE power supply function of the switch is default enabled on the
downlink port of the switch, which can be used for IEEE802.3af or IEEE802.3at
standards powered devices such as APs, bridges, and network cameras
Note：
When the switch connected workstations, servers, routers or other ethernet
devices the cable length should be within 100 meters;
The Auto-MDI / MDIX ethernet interface is enabled by default. Category 5,the
standard network cable or crossover cable can be used for Ethernet connection.
Do not connect the RJ45 port to the phone line
3.2 SFP Port connection
ELECTRA-T24 SFP port only support Gigabit fiber module. Recommended use
of standard SFP module products
The process of installing a fiber module on a switch is as follows:
First, grasp the optic fiber module from the side, insert it smoothly along the SFP
port slot until the optic fiber module and switch are in close contact;
Second, confirm the Rx and Tx ports of the fiber module when connecting, insert
one end of the fiber into the Rx and Tx ports correspondingly, ensure that the Tx
and Rx ends of the interface are connected correctly and the other end of the
fiber is connected to another device;
Third, please check the corresponding indicator light status after power on. If the
light blinking that the link is properly connected, if the light is off , the link is
failure, please check the line to confirm that the corresponding equipment is
enabled.

Note：
Does not allow excessive bending fiber, the radius of curvature should
not be less than 10cm;
Ensure the cleanliness of the fiber surface;
Please do not look directly into the optical fiber connector with your eyes as this
may cause eye injury
3.3 Check before power on
Check whether the outlet power supply meets the switch specifications;
Check the power, switches, racks and other equipment have been properly
grounded;
Check whether the switch and other network devices are connected properly
3.4 Device initialization
The switch automatically initializes when the power switch is turned on.
Indicator will appear the following situation:
After the power is turned on, the power indicator remains on, the other
indicator is off at this time;
After about 1 second, all lights except for the power light turn on for about 35
seconds and then turn off; when the SYS light goes flashing, the system runs
normally
Port LEDs indicates the connection status of each port, indicating that the
switch has started to work normally
3.5 Web Login
Step1、In the normal operation of the device, connect the computer to the switch's
RJ45 port by network cables

Step 2、Manually changed the computer IP address to 192.248.254.X (X is 2 ~
254), subnet mask is 255.255.255.0
Step3、Open computer's browser, type 192.248.254.1 in the address box, hit the
Enter key
Step4、Enter the default username and password “admin” and then click Login
Step5、Entered the switch web management interface successfully when you see
picture as below, you can begin to configure the switch

Chapter 4 Hardware Specifications
4.1Hardware Specifications
Network standard
IEEE 802.3: Ethernet Media Access Control (MAC)
protocol
IEEE 802.3i:10BASE-T Ethernet
IEEE 802.3u:100BASE-TX fast Ethernet
IEEE 802.3ab:1000BASE-T gigabit Ethernet
IEEE 802.3z:1000BASE-X gigabit Ethernet（fiber）
IEEE 802.3ae:10GBASE-SR/LR 10G Ethernet（fiber）
IEEE 802.3ad: comply link aggregation standard
IEEE 802.3x: flow control
IEEE 802.1p: About the traffic priority of the second layer
of Qos / Cos protocol (multicast filtering)
IEEE 802.1q:VLAN Bridge operation
IEEE 802.1d:STP spanning tree
IEEE 802.1s:MSTP spanning tree
IEEE 802.1w:RSTP spanning tree
IEEE 802.3af
IEEE 802.3at
Port
24 10/100/1000Mbps RJ45 port
4 gigabit SFP fiber port
1 Console port
PoE
24 10/100/1000Mbps RJ45 port support PoE
Max 400W
Single port max 30W
LEDs
28 Link/Act LEDs
24 POE LEDs
1Power LEDs
Performance
Forwarding mode: store and forward
Switch Volume (Full-duplex) ：56Gbps
Packet forwarding rate：41.664Mpps
8K MAC address table
Input
100-240V/50-60Hz
Dimension
（L×W×H）
440mm×320mm×44mm

4.2 Software Specifications
Shortcut function
One key VLAN
One key CCTV(1-8 port 250meters PoE distance)
One key Q0S (Video priority)
One key AI power supply
Routing
Support RIP V1/V2 dynamic routing
Support static routing
DHCP
Support DHCP server
Support DHCP reply
Support DHCP Snooping
VLAN
Support 4K VLAN
Support 802.1Q VLAN、Port VLAN、Voice VLAN
PoE
Support setting the PoE port priority
Support setting PoE power supply period
Support setting port power
MAC address table
Comply the IEEE 802.1d standard
Support MAC address learning and aging
automatically
Support static, dynamic, filter address table
Safety
Based on user rating management and password
protection
Support based on the port number, IP address, MAC
address restrictions on user access
Icmp-echo、DoS protection
Support DHCP Snooping、DHCP attack protection
Support port security, port isolation
Access control (ACL)
Support L2(Layer 2)～L4(Layer 4) packet filtering
function
Support port mirroring, port redirection, flow rate limit,
QoS re-marking
Multicast
Support IGMP v1/v2 Snooping
Support static multicast
Support multicast VLAN

QoS
Support 8 port queue
Support port priority, 802.1p priority, DSCP priority
Support SP、RR、WRR、WFQ Priority scheduling
algorithm
Spanning Tree
Support STP(IEEE 802.1d)，RSTP(IEEE 802.1w) and
MSTP(IEEE 802.1s) protocol
Support loop protection, BPDU protection
Management and
maintenance
Support WEB management（HTTP）
Support CLI（Telnet、local serial port）
Support SNMP V1/V2/V3，Compatible with public
MIBS
Support LLDP、RMON
Support IP Source protection、DoS protection
Support CPU monitor、memory monitoring
Support system log
Support cable testing
Multicast
Support IGMP v1/v2 Snooping
Support static multicast
Support Multicast VLAN

4.2 Features
1-8 port support 250Meters long-distance power supply (recommended
cat5e or 6 network cable)
Support a key VLAN, the port 1-24 isolated from each other, which can
effectively inhibit network storms, improve network performance
Supports IEEE 802.3af / at standard, automatically detects and identifies
devices that comply with the IEEE 802.3af / at standard and supply power to it
Support Auto MDI/MDIX；
Adopt store-and-forward exchange method
intelligent power supply, the lowest power consumption, ensure PD
power needs
With power circuit protection, protect the safety of PD
No configuration characteristics of the power supply is automatically
supplied to the adaptive equipment;
Fanless design, energy saving and environmental protection; no noise,
reduce the impact on the environment
Small, exquisite design
Support port without link power saving function
All ports have wire-speed forwarding capability
Plug and play ,easy to use