UNICOM Electric Switch fep 31024t 2 User Manual

Dyna-Switch/24  
24 Port 10/100Base-TX  
Fast Ethernet Switch  
FEP-31024T-2  
rev. 2  
USER’S MANUAL  
 
Introduction  
UNICOM’s DYNA-SWITCH/24 (Rev. 2.0) is a 24-port 10/100BASE-TX  
Switch that can be used to build high-performance switched workgroup  
networks. This switch is a store-and-forward device that offers low latency for  
high-speed networking and is targeted at workgroup, department or  
backbone computing environments in SME (small, medium enterprise)  
businesses.  
The DYNA-SWITCH/24 (Rev. 2.0) Switch features a “store-and-forward  
“ switching scheme. This allows the switch to auto-learn and store source  
address on a 4K-entry MAC address table. It also supports Class of Service  
functions. No manual configuration is necessary. The CoS function is  
included in the switch firmware and will operate automatically when the  
switch is on.  
Features  
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Conforms to IEEE 802.3, 802.3u, and 802.3x  
24-port 10/100Base-TX Switch with Auto-MDIX  
IEEE 802.3x flow control support  
Flow control on full-duplex  
Back pressure on half-duplex  
N-Way Auto-Negotiation supported  
Store-and-Forward switching architecture  
No-blocking full wire speed  
Embedded 1.25Mbits memory buffer  
Support IEEE802.1p Class of Service  
4K-entry MAC address table  
4.8 Gbps switch back-plane  
19” standard size  
1
 
Package Contents  
Unpack the contents of the DYNA-SWITCH/24 (Rev. 2.0) and verify them  
against the checklist below.  
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DYNA-SWITCH/24 (Rev. 2.0) Switch  
Power Cord  
Four Rubber Feet  
User manual  
Rack Mount kits  
DYNA-SWITCH/24 (Rev. 2.0)  
User manual  
Rubber Feet  
Power Cord  
Rack-Mount Kits  
Package Contents  
Compare the contents of your DYNA-SWITCH/24 (Rev. 2.0) package with  
the standard checklist above. If any item is missing or damaged, please  
contact your local dealer for service.  
2
 
Ethernet Switching Technology  
Ethernet Switching Technology has dramatically boosted the total bandwidth  
of networks, eliminated congestion problems inherent with Carrier Sense  
multiple access with Collision Detection (CSMA/CD) protocol, and greatly  
reduced unnecessary transmissions.  
This revolutionized networking. First, by allowing two-way, simultaneous  
transmissions over the same port (Full-duplex), which essentially doubled the  
bandwidth. Second, by reducing the collision domain to a single switch-port,  
which eliminated the need for carrier sensing. Third, by using the  
store-and-forward technology’s approach of inspecting each packet to  
intercept corrupt or redundant data, switching eliminated unnecessary  
transmissions that slow a network. This is accomplished by employing  
address learning which replaced the inefficient receiving port.  
Auto-negotiation regulates the speed and duplex of each port, based on the  
capability of both devices. Flow-control allows transmission from a 100Mbps  
node to a 10Mbps node without loss of data. Auto-negotiation and  
flow-control may require the disabling of some networking operations  
involving legacy equipment. Disabling the auto-negotiation is accomplished  
by fixing the speed or duplex of a port.  
Ethernet Switching Technology has supplied higher performance at costs  
lower than other solutions. Wider bandwidth, no congestion, and the  
reduction in traffic is why switching is replacing expensive routers and  
inefficient hubs as the ultimate networking solution. Switching brings a whole  
new way of thinking to networking.  
3
 
Hardware Description  
This section describes the hardware of the DYNA-SWITCH/24 and gives a  
physical and functional overview of this Switch.  
Physical Dimension  
The physical dimension of the DYNA-SWITCH/24 is 440mmx 120 mm x  
44mm (L x W x H)  
Front Panel  
The front panel of the DYNA-SWITCH/24 consists of (24) 10/100Base-TX  
RJ-45 ports. The LED Indicators are also located on the front panel of the  
Switch.  
Front panel of the DYNA-SWITCH/24 (Rev. 2.0)  
RJ-45 ports (Auto MDI/MDIX): (24) 10/100Mbps auto-sensing ports for  
10Base-T or 100Base-TX device connections.  
MDI (Medium Dependent Interface) ports are also called "uplink ports”.  
The MDI ports do not cross transmit and receive lines, which is done by the  
regular ports (MDI-X ports) that connect to end stations. MDI means  
connecting to another Hub or Switch while MDIX means connecting to a  
workstation or PC. Therefore, Auto MDI/MDIX means that you can connect  
to another Switch or workstation with either crossover or non-crossover  
cabling.  
4
 
LED Indicators  
The LED Indicators gives real-time information of systematic operation status.  
The following table provides descriptions of the LED status.  
LED  
Status  
Green  
Off  
Description  
Power On  
Powe  
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Power is not connected  
Green  
Blinks  
Off  
The port is connecting with the device.  
The port is receiving or transmitting data.  
No device attached.  
LK/A  
CT  
Orange  
Blinks  
The port is operating in Full-duplex mode.  
Collision of Packets occurs in the port.  
FD/C  
OL  
No device attached or in half-duplex  
mode.  
Off  
The Descriptions of LED Indicators  
5
 
Rear Panel  
The 3-pronged power plug is located at the rear panel of the  
DYNA-SWITCH/24 as shown in the figure. The switch will work with AC in the  
100-240V AC, 50-60Hz range.  
The rear panel of the DYNA-SWITCH/24  
Desktop Installation  
Set the switch on a sufficiently large flat space with a power outlet nearby.  
The surface should be clean, smooth, level and sturdy. Make sure there is  
enough clearance around the Switch to allow air circulation and the  
attachment of cables and the power cord.  
Attaching Rubber Feet  
1. Make sure mounting surface on the bottom of the Switch is grease and  
dust free.  
2. Remove adhesive backing from your Rubber Feet.  
3. Apply the Rubber Feet to each corner on the bottom of the Switch. These  
footpads can protect the Switch from shock and vibration.  
6
 
Rack-mounted Installation  
The DYNA-SWITCH/24 comes with a rack-mounting kit (not a standard  
option for this switch) and can be mounted in any EIA standard sized, 19"  
rack. The Switch can then be placed in a wiring closet with other equipment.  
Perform the following steps to rack mount the switch:  
1. Position one bracket to align with the holes on one side of the switch and  
secure it with the smaller bracket screws. Then attach the remaining  
bracket to the other side of the Switch.  
Attach mounting brackets with screws  
2. After attached both mounting brackets, position the DYNA-SWITCH/24 in  
the rack by lining up the holes in the brackets with the appropriate holes  
on the rack. Secure the switch to the rack with a screwdriver and the  
rack-mounting screws.  
Power On  
Connect the power cord to the power socket on the rear panel of the Switch.  
The other side of power cord connects to the power outlet. The external  
power supplies AC in the 100-240VAC voltage range, frequency 50~60Hz.  
Check the power indicator on the front panel to ensure power is properly  
supplied.  
7
 
Network Application  
This section provides a few samples of network topology in which the switch  
is used. The DYNA-SWITCH/24 (Rev. 2.0) is designed to be used as a  
segment switch. With its large address table (4K MAC address) and high  
performance, it is ideal for interconnecting networking segments.  
PC, workstations, and servers can communicate with each other by directly  
connecting with the DYNA-SWITCH/24. The switch automatically learns  
nodes address, which are subsequently used to filter and forward all traffic  
based on the destination address.  
By using any port as an Uplink port, the Switch can connect with another  
switch or hub. This connects each of your small-switched workgroups to form  
a larger switched network.  
8
 
Small Workgroup  
The DYNA-SWITCH/24 can be used as a standalone switch to which  
personal computers, servers, or a printer server are directly connected to  
form a small workgroup.  
Small Workgroup Application  
9
 
Segment Bridge  
In enterprise networks where large data broadcasts are constantly processed,  
this switch is an ideal way for departmental users to connect to the corporate  
backbone.  
In the illustration below, two Ethernet switches, with PCs, a print server, and  
a local server attached, are connected to the DYNA-SWITCH/24. Each  
device in this network can communicate with the others through the  
DYNA-SWITCH/24. Connecting servers to the Switch allows other users to  
access the server’s data.  
Department Bridge Application  
10  
 
Technical Specifications  
This section provides the specifications of the DYNA-SWITCH/24.  
IEEE 802.3 10Base-T Ethernet,  
IEEE 802.3u 100Base-TX Fast Ethernet  
Standard  
IEEE802.3x Flow Control and  
Back-pressure  
IEEE802.1p Class of Service  
Store and Forward switching architecture  
Technology  
Protocol  
CSMA/CD  
14,880 pps per Ethernet port  
148,800 pps per Fast Ethernet port  
4K Mac address table  
Transfer Rate  
MAC address  
LED Indicators  
Per port: Link/Activity, Full duplex/Collision  
Per unit: Power  
10Base-T: 2-pair UTP/STP Cat. 3, 4, 5  
cable  
EIA/TIA-568 100-ohm (100m)  
Network Cable  
100Base-TX: 2-pair UTP/STP Cat. 5 cable  
EIA/TIA-568 100-ohm (100m)  
Back-plane  
Transfer packet  
size  
4.8Gbps  
64 to 1536Bytes  
440mmx 120 mm x 44mm (L x W x H)  
19" size  
Dimension  
Memory Buffer  
1.5Mbits  
2 Queues per port for IEEE 802.1p class of  
service and support for IEEE802.1Q VLAN  
tag based priority rule. It will recognize 3  
bits of precedence carried by the VLAN tag  
and map it to the specified priority queue.  
Class of Service  
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The packet with a 0~3 precedence value  
will flow to the low queue and 4~7 valued  
packets will flow to the high queue. It also  
supports weight round ration for high and  
low queue. The rate is 4:1 (4 high queue  
packets then 1 low queue packet)  
[Note] The CoS function is included in the  
switch firmware and will operate  
automatically when the switch is on.  
-10ºC to 70ºC (-40ºF to 158ºF)  
Storage Temp.  
Operational  
Temp.  
0ºC to 45ºC (32ºF to 113ºF)  
Operational  
Humidity  
10% to 90% (Non-condensing)  
100-240 VAC, 50~60Hz  
Power Supply  
Power  
Consumption  
10.3 Watts (maximum)  
FCC Class A, CE, UL& cUL, CE/EN60950  
EMI & Safety  
12  
 
908 Canada Court  
City of Industry, CA 91748 U.S.A.  
Phone: 626.964.7873 or 800.346.6668 Fax: 626.964.7880  
©UNICOM 2005. UNICOM and “A Network Systems Solution” are trademarks of UNICOM Electric, Inc.  
All rights reserved. Specifications subject to change without notice.  
Rev: 09.05  
 

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