Allnet Synergy 21 S21256 User manual

S21256 / S21289 User Manual
ALLNET GmbH
S21256/S21289
5/8 10/100Mbps
Ethernet Switch

S21256 / S21289 User Manual
ALLNET GmbH
Contents
1. Introduction ------------------------------------------------------------ 2
1.1 Switch Features ---------------------------------------------- 3
1.2 Package Contents ------------------------------------------- 4
1.3 Front Panel and Rear Panel Specifications--------- 4
1.4 LED Indicator Specifications ---------------------------- 5
2. Installation-------------------------------------------------------------- 6
2.1 Before Connecting to the Network -------------------- 6
2.2 Connecting to End Nodes -------------------------------- 7
2.3 Switch to Router or Switch------------------------------- 8
3. Product Specification----------------------------------------------- 9

S21256 / S21289 User Manual
ALLNET GmbH
1. Introduction
S21256/S21289 Ethernet Switch, a mini desktop switch, is
designed for SOHO, student dormitory and small
enterprise users. It has 5/8 10/100Mbps Auto-negotiation
Ethernet ports, supports auto MDI/MDIX and
store-and-forward function to make sure the packet to be
sent each port effectively. “Plug and play” function helps
you set up easily. In addition, it also supports MAC address
auto-learning and aging. Moreover, it integrates
2K(S21256)/1K(S21289) MAC address table. Its easy setup
and no network management will benefit you a lot.
Exquisite and high-stable, it is your best choice to share
the Internet.

S21256 / S21289 User Manual
ALLNET GmbH
1.1 Switch Features
Complies with the IEEE802.3 10Base-T Ethernet,
IEEE802.3u 100Base-TX Fast Ethernet standards.
Supports NWAY auto-negotiation function,
auto-detect transfer data rate, Half/Full-duplex.
Provides 5/8 10/100Mbps Auto-sensing RJ45
ports and supports Auto MDI/MDIX.
Supports IEEE802.3x flow control for Full-duplex,
and Backpressure flow control for Half-duplex.
Supports non-blocking line speed forwarding.
Supports store-and-forward switching method.
Supports MAC address auto-learning/aging
function and integrates 2K(S21256)/1K(S21289)
MAC address table.

S21256 / S21289 User Manual
ALLNET GmbH
1.2 Package Contents
Please check the articles carefully after you open the
packing as below:
One 5/8-Port Fast Ethernet Switch
One Power Adapter
One User Guide
If any of the listed items are missing or damaged, please
contact the reseller from whom you purchased for
replacement.
1.3 Front Panel and Rear Panel Specifications
The front panel of 5/8 Port Fast Ethernet Switch includes
Link/Act indicators and one power indicator. Please refer to
the detailed description of these indicators in LED
Indicator Specifications
The Rear Panel of the Switch includes 5/8 10/100Mbps
RJ45 ports and one AC power port used for AC power input
is located in the side panel of the Switch.
Notice: Please use the delivery-attached power supply. If
not, the Switch may be damaged.

S21256 / S21289 User Manual
ALLNET GmbH
1.4 LED Indicator Specifications
The LED indicators of the Switch include Power and
Link/Act. You can see their operating situation through
these LED indicators.
The following chart shows the LED indicators of the Switch
along with explanation of each indicator.
LED
Color Status Description
Power
Green ON
This indicator
lights when the
Switch powers
on
.
— OFF
If this indicator is
not lighting,
please check the
AC power
connector to
ensure the correct
connection of the
power adapter.
Link/Act
Green ON
The other devi
ces
connect to the port
of the
S
witch
.
Green Blinking
The port is
transmit- ting or
receiving data
packets
.

S21256 / S21289 User Manual
ALLNET GmbH
2. Installation
2.1 Before Connecting to the Network
Before connecting the S21256/S21289 to the network,
please pay attention to the following instructions:
Don’t put heavy articles on the Switch.
Power sockets and equipments should be within 1.5
meters of the Switch.
Check power supply to confirm the safe connection.
Make sure there’s adequate space for proper heat
dissipation and adequate ventilation around the
Switch.

S21256 / S21289 User Manual
ALLNET GmbH
2.2 Connecting to End Nodes
Use standard Ethernet cable to connect the Switch to end
nodes as described below. Switch ports will automatically
adjust to the characteristics (MDI-II/MDI-X, speed, duplex)
of the device to which is connected.
Switch connecting to an end node
Please refer to the LED Indicator Specifications. The
Link/Act LEDs for each port lights green when the link is
available.

S21256 / S21289 User Manual
ALLNET GmbH
2.3 Switch to Router or Switch
Connecting to another router or switch
Please refer to the LED Indicator Specifications. The
Link/Act LEDs for each port lights green when the link is
available.

S21256 / S21289 User Manual
ALLNET GmbH
3. Product Specification
Standards
IEEE802.3 10Base-T Ethernet
IEEE802.3u 100 Base-TX Fast
Ethernet
Protocol CSMA/CD
Topology Star
Network Cables 10 Base -T: Cat.3 UTP or above
100 Base -
TX: Cat.5 UTP /STP
Speed 10/100Mbps
Transmission
Method Fast store-and-forward
MAC Address Table 2K(S21256)/1K(S21289)
Packet Filtering/
Forwarding Rate
14880pps(10Mbps)per port
148800pps(100Mbps)per port
MAC Address
Learning Self-learning, auto-aging.
Backplane
Bandwidth
1Gbps(S21256)/
1.6Gbps(S21259)
Power External universal power supply
AC INPUT AC 9V 600mA
Power Consumption 2.7W(S105)/4.2W(S108)
Operating
Temperature
0℃
℃℃
℃-40℃
℃℃
℃
Storage Temperature -40℃
℃℃
℃-70℃
℃℃
℃
Working Humidity 10%～
～～
～90% RH (no condensing)
Storage Humidity 5%～
～～
～95% RH (no condensing)

S21256 / S21289 User Manual
ALLNET GmbH
EC --- Declaration of conformity
For the following equirement:
Synergy21 S21256 & S21289 5/8 Port 10/100 Ethernet Switch
The safety advice in the documentation accompanying the
products shall be obeyed. The conformity to the above
directive is indicated by the CE sign on the device.
The Synergy21 S21256 & S21289 5/8 Port 10/100 Ethernet Switch
conforms to the Council Directives of EC EMC 2004/108/EC. This
equipment meets the following conformance standards:
EN: 55022: 2006
55024: 1998 + A1: 2001 + A2: 2003
61000-3-2:2006
61000-3-3:1995 + A1:2001 + A2:2005
This equipment is intended to be operated in all countries.
This declaration is made by
ALLNET Deutschland GmbH
Maistr. 2
82110 Germering
and can be downloaded from http://www.allnet.de/ce-certificates/

S21256 / S21289 User Manual
ALLNET GmbH
Copyright © 2008. All rights reserved.
No part of this document may be reproduced, republished, or
retransmitted in any form or by any means whatsoever, whether
electronically or mechanically, including, but not limited to, by
way of photocopying, recording, information recording, or
through retrieval systems without the express written permission
of the owner. Product specifications contained in this document
are subject to change without notice. All other company or
product names mentioned are used for identification purposes
only and may be trademarks of their respective owners.
Manufacturer:
ALLNET GmbH

S21256 / S21289 User Manual
ALLNET GmbH
ALLNET Deutschland GmbH
Maistrasse 2
82110 Germering
Tel. [phone]
Fax [phone]
email: [e-mail]