Nexxt ASFRM244U2 User manual

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Copyright Statement
Nexxt Solutions™ is a registered trademark. Other trademarks or brand names contained
herein are the trademarks or registered brand names of their respective owners. Copyright of
the whole product as integration, including its accessories and software, belongs to Nexxt
Solutions Ltd. No individual or third party is allowed to copy, plagiarize, reproduce, or translate
it into other languages, without express consent from Nexxt Solutions, Ltd. All of the photos
and product specifications mentioned in this manual are used as reference only. Upgrades of
software and hardware may occur, and should there be any changes, Nexxt Solutions shall not
be responsible for notifying about any such modifications in advance. If you would like to know
more about our products, please visit our website at www.NexxtSolutions.com.

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Switch features
Package contents
Front and rear panel specifications
LED indicator definitions
Preliminary steps
Installation procedure
Application
1.1
1.2
1.3
1.4
2.1
2.2
2.3
24-Port Fast Ethernet Switch
1. Introduction
2. Installation
3. Product specifications

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1. Introduction
The ASFRM244U2 is an unmanaged rack-mountable Fast Ethernet Switch, specially designed
for small to medium businesses that require high performance network connectivity and
smooth data transfer. It features 24 UTP/STP RJ-45 ports with auto MDI/MDIX, which can
operate at 10/100 Mbps. By integrating the ASFRM244U2 switch into your network, the
speed and network efficiency will be significantly enhanced. Its standard 19-inch rack-mountable
case along with its improved transmission rates make it the ideal choice for small and medium
sized networks.

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Complies with IEEE802.3 10Base-T Ethernet, IEEE802.3u 100Base-TX fast Ethernet
standards.
Supports IEEE802.3x flow control for full-duplex mode, and backpressure flow control for
half-duplex mode.
24 RJ-45 ports, supporting 802.3 NWAY auto-negotiation capabilities.
Each RJ-45 port supports auto-MDI/MDIX selection for easy integration into a network.
Supports MAC address auto-learning and auto-aging functions.
Features store- and- forward switching method.
Supports up to 4.8Gbps backplane bandwidth.
Each port supports transmission rates of up to 148800pps.
8000 MAC address table to meet diversified applications.
Dynamic buffer optimizes and balances the network load automatically.
Built-in power supply for 100-240 volts for worldwide compatibility.
6kV lightning proof power supply protection.
One 24-port switch
One power adapter
Network cable
User guide
Rack-mount bracket kit
Self adhesive pads (for on-shelf installation)
Upon opening the box, ensure that the following items are included:
If any of the listed items are missing or damaged, please contact the reseller who you
purchased the switch from for a replacement.
The front panel includes sixteen 10/100 Mbps UTP/STP ports, with the corresponding number
of lights to display the activity on each one, plus one indicator light for power.
1.1 Switch features
1.2 Package contents
1.3 Front and rear panel specifications
Front panel view of the switch
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On the rear panel, you will find the AC power connector with the input range marked.

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LED
Power
Link/Act
Color
Orange The switch is powered on
The switch is turned off
Other devices are connected
to a port on the switch
The port is transmitting
or receiving data packets
ON
ON
OFF
Blinking
Orange
Orange
Status Description
Rear panel view of the switch
LED indications
1.4 LED Definitions
Notice: Please use the supplied power adapter only. The use of any other adapter may damage
the unit and void the warranty .
LED indicators provide information about the connection and Link/ACT status of the switch.
They also facilitate activity monitoring and troubleshooting the performance of the network.
The following chart shows the LED indicators of the switch, along with an explanation of each
indicator.

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2. Installation
2.1 Preliminary steps
2.2 Installation procedure
1. Installation on a flat surface
Attach rubber pads to the bottom of the unit
Select a location with adequate ventilation all around the unit.
Place the switch on a secure, stable and clean surface.
Allow at least 10 cm clearance between the rear panel and the wall to dissipate hot air.
Never place heavy objects on top of the switch.
If you need to stack other devices on top of the switch, a minimum separation of 1.5 cm
should be used.
Electrical power supplied should match the voltage specified.
Observe the safety instructions detailed below before connecting the device into your network:
The switch can be mounted in a rack or placed free-standing on a desktop.
Attach the four self-adhesive rubber pads (supplied) in each corner on the bottom of
the chassis.
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2. Installation in a standard 19-inch rack
Rack-mount “L” bracket installation
Installing the switch in a standard 19-inch rack
First, make sure the rack is properly secured, stable and strong enough to support the weight
of the switch.
Attach the two mounting brackets on both sides of the switch using the supplied screws.
Place the unit into the rack, making sure the mounting holes on the device line up with the
mounting holes on the rack.
Fasten the chassis in the rack with the screws.
To install the mounting brackets on the switch, follow the steps described below.
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Commonly-used method to access the internet
2.3 Application
Use a standard Ethernet cable to connect the switch to the network devices, as illustrated below.
Switch ports will automatically adjust to the characteristics (MDI-II/MDI-X, speed, duplex) of the
device that is connected.
The orange Link/Act LEDs for each port will flash when the link is available.
With twenty-four UTP/STP ports, multiple PCs, printers and other network devices with RJ45
ports can be connected simultaneously to this switch.

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Standards
Protocol
Data transmission rate
Topological structure
Network cables
Port quantity
Transfer mode
MAC address table
Packet ltering / Forwarding rate
MAC address learning
Backplane bandwidth
IEEE802.3 10BASE-T Ethernet
IEEE802.3u 100BASE-TX Fast Ethernet
CSMA/CD Ethernet
Ethernet: 10Mbps（half-duplex）20Mbps（full-duplex）
Fast Ethernet: 100Mbps (half-duplex) 200Mbps (full-duplex)
Star
10Base-T: Cat.3 UTP or above (100m)
100Base-TX: Cat.5 UTP /STP (100m)
24 10/100Mbps RJ45 ports
Store-and-forward
8000 entries
14880pps (10Mbps) per port
148800pps (100Mbps) per port
Auto-learning, auto-aging
4.8Gbps
AC input voltage
Power consumption
Operating temperature
Storage temperature
Storage humidity
Operating humidity
100-240V ~ 50/60Hz
20W maximum
0ºC ~ 40ºC
-40ºC ~ 70ºC
10% ~ 90% RH (non- condensing)
5% ~ 90% RH (non- condensing)
Performance
Physical and environmental
Features
3. Specifications
Should you need further information regarding this product or need technical assistance,
please contact us at:
[email protected] or
[email protected].
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