Milan Technology Switch MIL S24000T User Manual

MIL-S24000T  
24-Port 1000BASE-T  
Gigabit Ethernet Switch  
USER GUIDE  
 
Table of Contents  
1. Introduction  
Gigabit Ethernet Technology  
Switching Technology  
Features  
Package Contents  
2. Hardware Description  
Front Panel  
Rear Panel  
LED Indicators  
3. Hardware Installation  
Desktop Installation  
Rack mounted Installation  
Power On  
4. Technical Specifications  
General Specifications  
Physical and Environmental Specifications  
Performance Specifications  
Appendix A: Regulatory Information  
 
1.  
Introduction  
Gigabit Ethernet Technology  
Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet  
structure, format, and support for CSMA/CD protocol, full duplex, flow control, and  
management objects, but with a tenfold increase in theoretical throughput over  
100-Mbps Fast Ethernet and a hundredfold increase over 10-Mbps Ethernet.  
Since it is compatible with all 10-Mbps and 100-Mbps Ethernet environments,  
Gigabit Ethernet provides a straightforward upgrade without wasting a company’s  
existing investment in hardware, software, and trained personnel.  
The increased speed and extra bandwidth offered by Gigabit Ethernet are  
essential to coping with the network bottlenecks that frequently develop as  
computers and their busses get faster and user applications generate more traffic.  
Upgrading key components, such as your backbone and servers to Gigabit  
Ethernet can greatly improve network response times, as well as significantly  
speed up the traffic between your subnets.  
Gigabit Ethernet supports video conferencing, complex imaging, and similar  
data-intensive applications. Likewise, since data transfers occur 10 times faster  
than Fast Ethernet, servers outfitted with Gigabit Ethernet NIC’s are able to  
perform 10 times the number of operations in the same amount of time.  
Switching Technology  
Another key development pushing the limits of Ethernet technology is in the field  
of switching technology. A switch bridges Ethernet packets at the MAC address  
level of the Ethernet protocol transmitting among connected Ethernet or fast  
Ethernet LAN segments.  
Switching is a cost-effective way of increasing the total network capacity available  
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to users on a local area network. A switch increases capacity and decreases  
network loading by making it possible for a local area network to be divided into  
different segments which do not compete with each other for network transmission  
capacity, giving a decreased load on each.  
The switch acts as a high-speed selective bridge between the individual segments.  
The switch automatically forwards traffic that needs to go from one segment to  
another, without interfering with any other segments. This allows the total network  
capacity to be multiplied, while still maintaining the same network cabling and  
adapter cards.  
Switching LAN technology is a marked improvement over the previous generation  
of network bridges, which were characterized by higher latencies. Routers have  
also been used to segment local area networks, but the cost of a router and the  
setup and maintenance required make routers relatively impractical. Today’s  
switches are an ideal solution to most kinds of local area network congestion  
problems.  
Features  
The MIL-S24000T Gigabit Ethernet Switch was designed for easy installation and  
high performance in an environment where traffic on the network and the number  
of users increase continuously.  
24 1000BASE-T Gigabit Ethernet ports  
Auto-Negotiation for 10/100/1000Mbps and duplex mode  
Auto-MDI/MDIX for each port  
Full/Half duplex transfer mode for 10 and 100Mbps  
Full duplex transfer mode for 1000Mbps  
Store-and-Forward switching method  
IEEE 802.3x flow control for full-duplex mode  
Backpressure flow control for half-duplex mode  
Integrated address Look-Up Engine, supports 8K absolute MAC addresses  
Supports 400K Bytes data buffer per device  
Extensive front-panel diagnostic LEDs  
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Package Contents  
Unpack the contents of the package and verify them against the checklist below.  
MIL-S24000T Gigabit Ethernet Switch  
AC Power Cord  
Rack Mount Ears  
Four Adhesive Rubber Feet  
User's Guide  
Warranty Card  
If any item is missing or damaged, please contact your local dealer for service.  
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2.  
Hardware Description  
Front Panel  
The front panel of the Gigabit Ethernet Switch consists of 24 1000BASE-T Gigabit  
Ethernet ports and the LED Indicators for the unit, which displays the conditions of  
the Gigabit Ethernet Switch and the status of the network.  
Figure 2-1. Front Panel view of the MIL-S24000T Gigabit Ethernet Switch  
Rear Panel  
The rear panel of the Gigabit Ethernet Switch consists of an AC power connecter  
and a power switch.  
Figure 2-2. Rear Panel view of the MIL-S24000T Gigabit Ethernet Switch  
The AC Power Connector is a three-pronged connector that supports the power  
cord. Plug the female connector of the provided power cord into this connector, and  
the male into a power outlet. Supported input voltages range from 100 - 240 VAC  
at 50/60 Hz.  
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LED Indicators  
The LED indicators of the Gigabit Ethernet Switch provide a real-time indication of  
system operating statuses. There are three LED-indicators for each Gigabit  
Ethernet port and one Power LED for the Unit.  
Figure 2-3. LED Indicators on the MIL-S24000T Gigabit Ethernet Switch  
POWER  
The Power LED indicator is solid green when the Gigabit Ethernet Switch is  
receiving power.  
Link/Act  
The Link/Act LED indicators are solid when there is a secure connection (or link)  
to the desired port. A blinking LED indicator signifies reception or transmission (i.e.  
Activity—Act) of data occurring on a port.  
1000Mbps  
The 1000Mbps LED indicators are solid when there is a secure connection (or link)  
to a 1000Mbps Gigabit Ethernet device at the desired port.  
100Mbps  
The 100Mbps LED indicators are solid when there is a secure connection (or link)  
to a 100Mbps Fast Ethernet device at the desired port.  
When the connection (or link) is 10Mbps, both the 1000Mbps and  
Note:  
100Mbps LED indicators are off.  
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3.  
Hardware Installation  
Desktop Installation  
Set the switch on a sufficiently large flat space with a power outlet nearby. The  
surface where you put your switch should be clean, smooth, level, and sturdy.  
Provide enough clearance around the switch to allow attachment of cables, power  
cord and air circulation.  
Attaching Rubber Feet  
A. Make sure the mounting surface on the bottom of the Switch is grease and  
dust free.  
B. Remove adhesive backing from the rubber feet.  
C. Apply the rubber feet to each corner on the bottom of the switch.  
These footpads can prevent the Switch from shock/vibration.  
Figure 3-1. Attaching Rubber Feet to each corner on the bottom of the Switch  
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Rack-mounted Installation  
The MIL-S24000T comes with a rack-mounted kit and can be mounted in an EIA  
standard size, 19-inch rack. The Switch can be placed in a wiring closet with other  
equipment.  
Perform the following steps to rack mount the switch:  
A. 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.  
Figure 3-2. Attach mounting brackets with screws  
B. After attaching both mounting brackets, position the MIL-S24000T 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.  
Figure 3-3. Mount the MIL-S24000T in an EIA standard 19-inch Rack  
Note: For proper ventilation, allow at least 4 inches (10 cm) of clearance on the  
front and 3.4 inches (8 cm) on the back of the Switch. This is especially important  
for enclosed rack installation.  
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Power On  
Connect the power cord to the power socket on the rear panel of the Switch.  
Connect the other end of the cord to an appropriate power outlet. Press the power  
On/Off switch to the on position and check the power indicator on the front panel  
to see if power is properly supplied.  
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4.  
Technical Specifications  
General Specifications  
Standards:  
IEEE 802.3ab 1000BASE-T  
IEEE 802.3u 100BASE-TX  
IEEE 802.3 10BASE-T  
IEEE 802.3x Flow Control  
CSMA/CD  
Protocol:  
Data Transfer  
Rate:  
Ethernet:  
10Mbps (Half-duplex)  
20Mbps (Full-duplex)  
100Mbps (Half-duplex)  
200Mbps (Full-duplex)  
Fast Ethernet:  
Gigabit Ethernet: 2000Mbps (Full-duplex)  
Topology:  
Star  
Network Cables:  
Ethernet:  
2-pair UTP Cat. 3,4,5,  
Unshielded Twisted Pair  
(UTP )Cable  
Fast Ethernet:  
2-pair UTP Cat. 5,  
Unshielded Twisted Pair  
(UTP )Cable  
Gigabit Ethernet: 4-pair UTP Cat. 5,  
Unshielded Twisted Pair  
(UTP )Cable  
Number of Ports: Twenty-four (24) 1000BASE-T Gigabit Ethernet ports  
Physical and Environmental Specifications  
AC inputs:  
100 – 240 VAC Universal, 50/60 Hz  
Power Consumption: 32 watts maximum  
Operating  
Temperature:  
0 °C ~ 40°C  
Storage Temperature:  
Humidity:  
-10°C ~ 70°C  
5% ~ 90% RH, non-condensing  
440mm x 210mm x 44 mm (1U), 19 inch  
rack-mount width  
Dimensions:  
Certification:  
Safety:  
FCC Class A, CE Marking Class A, VCCI Class A  
cUL(UL60950), CB(IEC60950)  
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Performance Specifications  
Transmission  
Store-and-forward  
Method:  
RAM Buffer:  
Filtering Address  
Table:  
400K Bytes per device  
8K MAC address per device  
MAC Address  
Learning:  
Self-learning, auto-aging  
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Appendix A:  
Regulatory Information  
FCC Warning  
This equipment has been tested and found to comply with the regulations for a Class A digital  
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable  
protection against harmful interference when the equipment is operated in a commercial  
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not  
installed and used in accordance with this user’s guide, may cause harmful interference to radio  
communications. Operation of this equipment in a residential area is likely to cause harmful  
interference, in which case the user will be required to correct the interference at their own  
expense.  
CE Mark Warning  
This is a Class A product. In a domestic environment, this product may cause radio interference, in  
which case the user may be required to take adequate measures.  
VCCI Warning  
This is a product of VCCI Class A Compliance.  
UL Warning  
a) Elevated Operating Ambient Temperature-If installed in a closed or multi-unit rack assembly,  
the operating ambient temperature of the rack environment may be greater than room  
ambient. Therefore, consideration should be given to installing the equipment in an environment  
compatible with the manufacturer's maximum rated ambient temperature (Tmra).  
b) Reduced Air Flow- Installation of the equipment in a rack should be such that the amount of air  
flow required for safe operation of the equipment is not compromised.  
c) Mechanical Loading-Mounting of the equipment in the rack should be such that a hazardous  
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condition is not achieved due to uneven mechanical loading.  
d) Circuit Overloading- Consideration should be given to the connection of the equipment to the  
supply circuit and the effect that overloading of circuits might have on over current protection and  
supply wiring. Appropriate consideration of equipment nameplate ratings should be used when  
addressing this concern.  
e) Reliable Earthing-Reliable earthing of rack-mounted equipment should be  
maintained. Particular attention should be given to supply connections other than direct  
connections to the branch circuit (e.g., use of power strips).  
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90000423 Rev A  
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