Kingston Technology Switch KNS1600R User Manual

KINGSTON TECHNOLOGY  
FAST ETHERX 10/100BASE-TX  
19” RACK-MOUNTABLE  
FAST ETHERNET SWITCH  
USER’S GUIDE  
MODEL(S): KNS800/R  
KNS1600/R  
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Important Safety Instructions  
1. Read all these instructions.  
2. Save these instructions for later use.  
3. Follow all warnings and instructions marked on the product.  
4. Do not use this product near water.  
5. This product should be operated from the type of power  
source indicated on the marking label. If you are not sure of  
the type of power available, consult your dealer or local  
power company.  
6. Do not attempt to service this product yourself, as opening or  
removing covers may expose you to dangerous voltage  
points or other risk. Refer all servicing to service personnel.  
Wichtige Sicherheitshinweise  
1. Diese Hinweise sollten vollständig durchgelesen werden.  
2. Diese Hinweise für einen späteren Gebrauch aufbewahren.  
3. Allen auf dem Gerät angebrachten Warnungen und  
Hinweisen folgen.  
4. Das Gerät nicht in der Nähe von Wasser verwenden.  
5. Das Gerät nur mit dem Aufkleber bezeichneten  
Netzspannung betreiben. Bei Fragen über die Art der  
Netzspannung  
sollte  
der  
Händler  
oder  
das  
Energieversorgungsunternehmen zu rate gezogen werden.  
RJ Nicht versuchen das Produkt selbst zu reparieren. In allen  
Produkten existieren gefährliche elektrische Spannugen.  
Nicht das Gehäuse öffnen.  
Kingston Technology Company  
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Table Of Contents  
Introduction...........................................................................1  
Model Types .............................................................2  
Special Features.......................................................3  
Package Contents.....................................................3  
Compliance Standards.........................................................4  
Design Features...................................................................4  
Switching Function....................................................4  
Auto-Negotiation .......................................................4  
Full-Duplex................................................................4  
Store-and-Forward Switching ...................................4  
Flow Control..............................................................4  
Hardware Installation............................................................5  
Front Panel ...............................................................5  
Power LED...................................................5  
100BASE-TX (100TX) LED .........................5  
LINK/RX LED (for both 10 and 100Mbps) ...5  
TX LED (Model KNS800/R Only).................6  
Full Duplex and Collision LED .....................6  
UTP Ports ....................................................6  
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Rear Panel................................................................8  
Power Switch...............................................8  
AC Power Connector...................................8  
Fuse.............................................................8  
Fan Units .....................................................8  
Appendices ..........................................................................9  
Appendix A Pin Assignments ..............................10  
Appendix B Cabling Guidelines...........................11  
UTP Cable Wiring Standards ....................12  
UTP Cable Rating Codes..........................13  
Appendix C Specifications...................................14  
Appendix D Frequently Asked Questions ...........16  
Appendix E Mounting Templates ........................18  
Rubber Feet for Desktops .........................18  
Brackets for Rack Mounting ......................18  
Appendix F Product Warranties and Notices ......19  
Limited Warranty Statement......................19  
Duration of Warranty .................................19  
Free Technical Support.............................20  
Disclaimers................................................20  
F.C.C. Certification....................................21  
CE Notice ..................................................21  
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Introduction  
1
Introduction  
Intended Audience: This manual assumes that the user has a general working  
knowledge of networking principles and architecture and is familiar with  
network systems in general.  
Congratulations on the purchase of your new Kingston Fast EtheRx  
10/100BASE-TX 19” Rack-Mountable Fast Ethernet Switch. There are two  
models: the KNS800/R and the KNS1600/R, 8-port and 16-ports respectively.  
The Fast EtheRx Switch is a high-performance 10/100BASE-TX switch ideal  
for the small-to-medium businesses. The Fast EtheRx Switch has eight (8) or  
sixteen (16) UTP ports that auto-negotiate speed detection for 10/100BASE-TX  
and half-duplex / full-duplex mode operation. It is basically designed to allow  
Standard 10BASE-T Ethernet networks to communicate with 100BASE-TX  
Fast Ethernet networks and to segment both 10Mbps and 100Mbps networks.  
The Fast EtheRx Switch complies with IEEE802.3u 100BASE-TX, IEEE802.3i  
10BASE-T, and IEEE802.3 CSMA/CD Ethernet Standards.  
The Fast EtheRx Switch may be used in both standard desktop and 19” rack-  
mount installations (using the mounting brackets provided with the unit) and  
requires no hardware or software configuration.  
The last port on the Fast EtheRx Switch has two RJ-45 connectors to support  
UTP cabling in the straight through and/or crossover wiring configurations.  
For easy recognition of network status and troubleshooting, the front panel  
includes a variety of diagnostic LEDs including Power, 100TX Speed  
Detection, Link, Receive, Transmit, Collision, and Full-Duplex status.  
For the remainder of this manual, the KNS800/R and KNS1600/R will be  
referred to collectively as the Fast EtheRx Switch.  
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Model Types  
Model Types  
Model KNS800/R  
Model KNS1600/R  
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Special Features  
3
Special Features  
Provides automatic switching function between 10Mbps and 100Mbps  
Auto-Negotiation for 10/100Mbps selection  
Auto-Negotiation for half-duplex and full-duplex mode operation  
Uses Store and Forward switching approach to minimize re-  
transmission of faulty packets  
Filtering/Forwarding rate of 148,800 packets/second at 100Mbps  
Filtering/Forwarding rate of 14,880 packets/second at 10Mbps  
Supports collision-based flow control  
Link, Receive, Transmit, and Full Duplex LEDs for troubleshooting  
Power LED and Collision LED for collision detection  
Last UTP port supports crossover or straight-through cabling  
Conforms to IEEE 802.3u 100BASE-TX, IEEE 802.3i 10BASE-T, and  
IEEE 802.3 CSMA/CD Ethernet Standards  
Internal auto-sensing universal power supply operating at 100-240VAC  
(50/60Hz)  
Package Contents  
Your Fast EtheRx package should contain the following items:  
KNS800/R or KNS1600/R Fast EtheRx Switch  
AC power cord  
Mounting kit includes:  
(2) Angle brackets  
(8) Bracket screws  
(4) 10/32” Rack-Mount thumb screws  
(4) Rubber feet  
User's Guide  
If any of the above items are missing or damaged, please contact your Kingston  
dealer for a replacement. Be sure the items you receive are genuine Kingston  
Technology products. If the Kingston name and logo are not on the front panel  
of your unit, it is not a genuine Kingston product.  
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Design Features  
Compliance Standards  
The Fast EtheRx Switch complies with the 10/100Mbps functions as defined by  
IEEE802.3u 100BASE-TX, IEEE802.3i 10BASE-T, and IEEE802.3 CSMA/CD  
Ethernet standards.  
Design Features  
Switching Function  
The Fast EtheRx Switch is basically designed to bridge Standard 10BASE-T  
Ethernet networks to 100BASE-TX Fast Ethernet networks and to segment 10Mbps  
or 100Mbps network segments.  
Auto-Negotiation  
Auto-Negotiation provides the means of automatically establishing a link by  
detecting the link capabilities of the connected device on the network to select the  
best operational mode available (i.e. 10/100BASE-TX selection, half- / full-duplex  
mode operation, etc.)  
Full-Duplex  
Full-Duplex transmission means that dedicated inbound and outbound channels are  
established for bi-directional transmission of data. This allows the collision  
detection mechanism (CSMA/CD) to be by-passed, thus decreasing transmission  
delay normally caused by listening, collisions, and packet resends when operating in  
half-duplex mode.  
Store-and-Forward Switching  
The Fast EtheRx Switch uses a packet-forwarding method called Store-and-  
Forward, which minimizes the re-transmission of faulty data packets. This means  
that the Fast EtheRx Switch can store the incoming frame in an internal buffer and  
check the packet for errors before sending it out to the destination port. If the frame  
does contain errors, it will be discarded and then retransmitted.  
Flow Control  
The Fast EtheRx Switch implements a collision-based flow control mechanism that  
reduces the risk of data being lost at the congested ports. This is accomplished by  
forcing a collision with the data frames on all ports once the free-buffer queue has  
reached the pre-set minimum.  
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Hardware Installation  
5
Hardware Installation  
Before you begin installing network cables, please take a few moments to  
familiarize yourself with Fast EtheRx Switch. The functions on the front and  
rear panels are illustrated in the following sections.  
100TX Speed  
Detection LED  
Link / RX (Receive) LED  
Power LED  
TX (Transmit) LED  
10/100BASE-TX  
UTP Ports  
Full-Duplex  
Collision LED  
/
Fig. 1-KNS800/R Front Panel  
Front Panel  
Power LED  
The PWR LED indicates the power status of the Fast EtheRx switch. The LED  
will light up steady green when the AC power cord is connected to the unit  
from a power source and the power switch on the unit has been turned on.  
100BASE-TX (100TX) LED  
The 100TX LED will automatically light up when 100Mbps operation is  
detected. This LED will not light up if 10Mbps operation is detected.  
LINK/RX LED (for both 10 and 100Mbps)  
The LINK/RX LED uses a single LED to display two functions. A steady  
green light indicates that a good link has been established, and a flashing green  
light indicates when data is being received. If the LED does not display solid  
green indicating a good link, check the following:  
1. Make sure that the power is turned on for both the Fast  
EtheRx Switch and the attached device.  
2. Verify that the drivers for the network adapter have been  
loaded on the PC. Some network adapters require that the  
driver be loaded before establishing  
a
proper link.  
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Front Panel  
3. Make sure the cable is wired properly and connected on both  
ends.  
4. Make sure the correct cable type has been selected.  
5. If steps 1 through 4 are correct, please check the cable, as it  
may be defective or wired incorrectly. Replace the cable and  
try again. Please refer to Appendix A for Pin Assignments  
and Appendix B for Cabling Guidelines.  
TX LED (Model KNS800/R Only)  
The TX LED displays a flashing green light when data is transmitted. A flash  
may be longer or shorter depending on the length of the data packet being  
transmitted.  
Full Duplex and Collision LED  
The FDX/COLL LED uses a dual color LED to display two functions. A solid  
green light indicates that Full-Duplex operation has been detected. A flashing  
amber light indicates that a collision has occurred in half-duplex mode. Full-  
Duplex mode is auto-negotiated on all UTP ports.  
UTP Ports  
Depending on the model, the Fast EtheRx Switch has eight (8) or sixteen (16)  
10/100Mbps UTP ports that auto-negotiate 10/100BASE-TX connections and  
half- or full-duplex mode operation. The last UTP port has two RJ-45 port  
connectors for support of UTP cabling in the crossover or straight-through  
wiring configuration. Only one of the two ports may be utilized.  
The RJ-45 port marked “MDI-X” is internally crossed like all other UTP ports.  
By default, all repeater and switched UTP ports are generally configured as  
standard MDI-X, or internally crossed ports. With a straight-through cable, this  
port can be used for cascading to a standard MDI device, such as a network  
adapter or router. With a crossover cable, this port can be used for cascading to  
another MDI-X device, such as a hub.  
The RJ-45 port marked “MDI” is a standard straight-through port. With a  
crossover cable, this port can be used for cascading to another MDI device,  
such as a network adapter or router. With a straight-through cable, this port can  
be used for cascading to an internally crossed MDI-X device, such as a  
repeater, or hub.  
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Front Panel  
7
The following diagrams show the relationship between cable type and which  
UTP port connector to use. To verify the pin wiring of your UTP cable, see  
“Appendix A Pin Assignments.”  
Using a Straight-Through Cable  
PORT 8  
PORT 8  
Use the MDI-X port  
when connecting to  
Use the MDI port  
when connecting to  
a hub or other MDI-X  
device.  
a
network card or  
other MDI device.  
MDI-X  
MDI  
MDI-X  
MDI  
Using a Cross-Over Cable  
PORT 8  
PORT 8  
Use the MDI-X port  
when connecting to  
a hub or other MDI-X  
device.  
Use the MDI port  
when connecting to  
a
network card or  
other MDI device.  
MDI-X  
MDI  
MDI-X  
MDI  
Notes on MDI and MDI-X  
MDI (Media Dependent Interface) is the standard that defines the mechanical  
and electrical configuration of a UTP port. For any two devices to  
communicate with each other on the network, the transmitter of one device  
must be connected to the receiver of the other device. This can be achieved by  
using a crossover cable, or by using the MDI-X port, which implements the  
crossover internally.  
Port  
Configuration  
For connection to  
another hub (MDI-X)  
For connection to a NIC or  
router (MDI)  
MDI-X  
MDI  
Use cross-over cable  
Use straight-through cable  
Use cross-over cable  
Use straight-through cable  
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Rear Panel  
Rear Panel  
AC Power  
Connector  
Power Switch  
U
S
E
O
N
L
Y
W
I
T
H
A
2
5
0
V
F
U
S
E
MDI  
/
MDI-X  
Fan Unit  
Fan Unit  
Fuse (250V, 2A)  
Configuration Table  
Figure 2 – KNS800/R Rear Panel  
Power Switch  
The AC Power switch turns the unit kj or kbb. If the PWR LED does not  
light up when the unit is turned on, please check the following:  
1. Try a different AC power outlet.  
2. Check the external fuse located in the back of the unit (below the AC  
power connector.) If the fuse is blown, replace it with the spare fuse  
provided with the unit (located below the AC power connector).  
3. The power supply may be defective. Return the unit for replacement.  
WARNING: For safety reasons, DO NOT attempt to open and  
service the unit. There are no user-serviceable components inside.  
)
AC Power Connector  
The Fast EtheRx switch uses an auto-sensing 100VAC-240VAC, 50/60Hz internal power  
supply. Connect the AC power cord from the back of the unit to an AC electrical outlet.  
Fuse  
The Fast EtheRx switch comes equipped  
U
S
E
O
N
L
Y
W
I
T
H
A
2
5
0
V
F
U
S
E
with a 250V (2 Amp max.) external fuse  
and one spare fuse. Both fuses are located  
in a fuse holder located just below the AC  
power connector on the back of the unit.  
Fuse (250V, 2A)  
E
S
U
F
0V  
5
2
A
H
IT  
W
LY  
N
O
E
S
U
Spare  
Fuse  
Fan Units  
The Fast EtheRx Switch uses two independent cooling fans for optimum air- flow to  
safeguard the unit from unnecessary heat exposure.  
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Appendices  
9
Appendices  
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Appendix A Pin Assignments  
Appendix A Pin Assignments  
UTP Port Pin Assignments  
The UTP ports use RJ-45 Unshielded Twisted Pair (UTP) cabling. Connector  
pin numbers and pin wiring assignments are listed below in Figure A-1 and  
Table A-1, respectively. Twisted-Pair cables can be wired with either straight-  
through or crossover pin assignments. Both wiring schemes are mentioned in  
"Appendix B Cabling Guidelines" for reference in creating a twisted-pair cable.  
The UTP port labeled “MDI” is a standard straight-through  
1
2
3
4
5
6
7
8
UTP port. All other UTP ports are configured as “MDI-X”,  
or internally crossed. By default, all repeating and switched  
UTP ports are generally configured as MDI-X, unless otherwise  
specified. See page 7 “Notes on MDI and MDI-X” for details.  
MDI  
UTP Port  
Fig. A-1 RJ-45 Connector Pin Numbers  
Pin Number  
MDI-X  
MDI  
1
2
Receive Data +  
Receive Data -  
Transmit Data +  
Not Used  
Transmit Data +  
Transmit Data -  
Receive Data +  
Not Used  
3
4,5  
6
Transmit Data -  
Not Used  
Receive Data -  
Not Used  
7,8  
Table A-1 UTP Pin Assignments  
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Appendix B Cabling Guidelines  
11  
Appendix B Cabling Guidelines  
UTP Cable Type  
When installing network cables, the following table shows appropriate cabling  
guidelines for 100BASE-TX Fast Ethernet architecture.  
Cabling Components:  
100BASE-TX  
Trunk and Patch Cable  
Type:  
4-Pair 100UTP CAT 5  
(only 2 pairs used)  
Modular Plug:  
Patch Panel:  
8-Pin RJ-45 CAT 5 only  
8-Pin RJ-45 CAT 5 only  
Table B-1 Network Cable Guidelines  
(NOTE: All UTP cables come in both solid and stranded filament. Solid  
filament cables are more rigid and usually intended for trunk cabling.  
Stranded filament cables are more pliable and generally targeted for patch  
cables. For proper termination, use the correct RJ-45 connector, as they  
differ for each type of cable.)  
UTP Cable Wiring  
UTP cables are wired based on one of two standard pin configurations:  
Straight-Through and Crossover. 100BASE-TX uses only Category-5 UTP  
cables with four pairs of wire as illustrated below in Tables B-2 and B-3.  
"Straight-Through"  
Configuration  
"Cross-Over”  
Configuration  
Pin Number Pin Number  
Pin Number Pin Number  
1 (TRX+)  
2 (TRX-)  
3 (RCV+)  
6 (RCV-)  
4, 5, 7, 8  
1 (TRX+)  
2 (TRX-)  
3 (RCV+)  
6 (RCV-)  
Not Used  
1 (TRX+)  
2 (TRX-)  
3 (RCV+)  
6 (RCV-)  
4, 5, 7, 8  
3 (RCV+)  
6 (RCV-)  
1 (TRX+)  
2 (TRX-)  
Not Used  
Table B-2. Straight-Through Wiring  
Table B-3. Cross-Over Wiring  
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Appendix B Cabling Guidelines  
UTP Cable Wiring Standards  
There are two governmental agencies: the Electronic Industry Association  
(EIA) and the Telecommunications Industry Association (TIA), which set the  
standard for all cable wiring requirements for commercial buildings.  
With the advent of 100Mb/s networking products, it is best to use higher  
quality CAT 5 cables like Belden or Helix as well as CAT 5-compliant patch  
panels, patch cables, and connectors while following the EIA/TIA wiring  
standards. 100 UTP CAT 5 type cables use 4-pair UTP wiring.  
Refer to the illustrations below for 4-pair wiring using either T568A (Fig. B-1)  
or T568B (Fig. B-2) wiring standards. Both T568A and T568B wiring is  
compatible with 10BASE-T and 100BASE-TX and require no special  
configurations, but for premise wiring, stick to one wiring standard. Mixing  
T568A and T568B wiring schemes may cause or lead to potential problems.  
Pair 2  
Pair 3  
Pair 3 Pair 1 Pair 4  
Pair 2 Pair 1 Pair 4  
1 2 3 4 5 6 7 8  
1 2 3 4 5 6 7 8  
T568A  
T568B  
Fig. B-1 4-Pair T568A Wiring  
Fig. B-2 4-Pair T568B Wiring  
T568A  
Pin 1  
Pin 2  
Pin 3  
Pin 4  
Pin 5  
Pin 6  
Pin 7  
Pin 8  
Pairs  
Pair 3  
Pair 3  
Pair 2  
Pair 1  
Pair 1  
Pair 2  
Pair 4  
Pair 4  
Strand  
Blue  
Solid  
T568B  
Pin 1  
Pin 2  
Pin 3  
Pin 4  
Pin 5  
Pin 6  
Pin 7  
Pin 8  
Pairs  
Pair 2  
Pair 2  
Pair 3  
Pair 1  
Pair 1  
Pair 3  
Pair 4  
Pair 4  
Strand  
Black  
Yellow  
Blue  
Solid  
White/Green  
Green/White  
White/Orange  
Blue/White  
White/Orange  
Orange/White  
White/Green  
Blue/White  
Orange  
Black  
Red  
Red  
Green  
Yellow  
Brown  
White  
White/Blue  
Green  
Orange  
Brown  
White  
White/Blue  
Orange/White  
White/Brown  
Brown/White  
Green/White  
White/Brown  
Brown/White  
Table. B-4 4-Pair T568A Wiring  
Table B-5 4-Pair T568B Wiring  
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Appendix B Cabling Guidelines  
13  
UTP Cable Rating Codes  
UTP cables meet different UL-NEC requirements based mostly on cable-jacket  
quality. Below is an explanation of the rating codes for each cable type.  
UL – The National Electrical Code (NEC), published by the National Fire  
Protection Association (NFPA), details advisory safety considerations for  
electrical wiring. NEC Article 800 Communications Cables are manufactured  
to meet these different cable types.  
1. CMP – Cables meeting type CMP requirements are suitable for  
installation in ducts and plenums without the use of conduit. These cables  
are designed for fire resistance and low-smoke and toxin producing  
characteristics.  
2. CMR – Riser type cables are engineered to prevent the spread of fire from  
floor to floor and are suitable for vertical shaft applications.  
3. CM – Cables for general building wiring. CM cables are used in areas  
other than plenums and risers. These cables are resistant to the spread of  
fire and pass the UL 1581Vertical Tray Flame Test.  
4. MP, MPR & MPP – Within Article 800, the Multi-purpose Cables  
Category, allows conditional substitutions between different cable types &  
are restricted by number, AWG size and stranding of the cable conductors.  
Terms You Should Be Familiar With  
1. BACKBONE WIRING  
The physical/electrical interconnections  
between telecommunications wiring closets and equipment rooms.  
2. COMPLIANCE – A datacomm or wiring device that meets all  
characteristics of a standard is said to be in compliance with that standard.  
3. PREMISE WIRING – The entire wiring system on the premises,  
especially the supporting wiring that connects the communications outlets  
to the network interface jack.  
PJ NEAR-END CROSSTALK (NEXT) – In wires packed together within a  
cable, the signals generated at one end of the link can flush out the weaker  
signals coming back from the recipient.  
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Appendix C Specifications  
Appendix C Specifications  
Fast EtheRx Models KNS800/R, KNS1600R  
Compliance:  
IEEE 802.3u 100BASE-TX Standard  
IEEE802.3i 10BASE-T Standard  
IEEE802.3 CSMA/CD Ethernet Standard  
Media Interface:  
KNS800/R  
Eight (8) auto-negotiating 10/100 Mbps UTP ports  
Sixteen (16) auto-negotiating 10/100 Mbps UTP ports  
Supports cross-over or straight-through cabling  
Port 8  
KNS1600/R  
Uplink Port:  
KNS800/R  
KNS1600/R  
Port 16  
10BasE-T/100BASE-TX  
Half / Full-duplex mode:  
Diagnostic LEDs:  
Auto-Negotiation  
Auto-Negotiation  
1 LED for Power Indicator (green)  
8 LEDs for 100BASE-TX speed detection (steady green)  
8 LEDs for Link/Receive (steady green/flashing green)  
8 LEDs for Transmit detection (flashing green)  
8 LEDs for Full-Duplex/Collision detection (steady  
green/flashing amber)  
KNS800/R  
16 LEDs for 100BASE-TX speed detection (steady  
green)  
KNS1600/R  
16 LEDs for Link/Activity detection (steady  
green/flashing green)  
16 LEDs for Full Duplex/Collision detection (steady  
green/flashing amber)  
Switching Approach:  
Flow Control:  
Store-and-Forward  
Half-Duplex  
Collision-based Backpressure  
IEEE 802.3x  
Full-Duplex:  
MAC Address Support:  
KNS800/R  
17K MAC addresses  
12K MAC addresses  
KNS1600/R  
Filtering/Forwarding  
Rate (min. packet size):  
Latency (min. packet size.)  
KNS800/R  
148,800 packets/second @ 100Mbps  
14,880 packets/second @ 10Mbps  
100Mbps to 100Mbps 9.8µs  
10Mbps to 10Mbps 68.5µs  
100Mbps to 100Mbps 12.5µs  
10Mbps to 10Mbps 69.7µs  
KNS1600/R  
Max Segment Length:  
Connector Type:  
100 meters (328 feet)  
RJ-45, Female  
Kingston Technology Company  
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Appendix C Specifications  
15  
Cable Type:  
Cable Grade:  
100BASE-TX:  
10BASE-T:  
UTP 26 to 22 AWG  
Category 5 or better  
Category 3, 4, 5 or better  
Environmental:  
Operating Temp.  
Storage Temp.  
0°C to 45°C (32°F to 113°F)  
-20°C to 60°C (-4°F to 140°F)  
10% to 90% non-condensing  
Relative Humidity  
Electrical:  
Input Voltage:  
Output Voltage:  
KNS800/R  
90VAC – 264VAC, 50/60Hz, Autosensing  
5VDC, 6A  
KNS1600/R  
3.3VDC/12A. 5VDC/4A  
Power Consumption:  
KNS800/R  
9.3 Watts maximum  
16.5 Watts maximum  
KNS1600/R  
Physical:  
Dimension (HxWxD):  
1.69” x 17.32” x 7.88”  
(43.30mm x 443.40mm x 201.70mm)  
Weight:  
KNS800/R  
5.7 lbs. (2.6 kg)  
6.3 lbs. (2.9 kg)  
KNS1600/R  
Certification  
EMI Standards:  
FCC Class A, CE CISPR A  
EN55022, IEC801-2, IEC801-3, IEC801-4  
EN60950  
EMC Standards:  
Low Voltage Directive:  
Safety Standards:  
UL, cUL, TUV  
KNS1600/R User’s Guide - Rev. B00  
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16  
Appendix D Frequently Asked Questions  
Appendix D Frequently Asked Questions  
What is a switch and what does it do?  
Switching hubs are low-latency devices that allow you to maximize the  
bandwidth of a network using concurrent access within the unit. Switches  
allow you to segment LANs, connect LANs of different speeds, or extend the  
collision domain of an existing LAN.  
What’s the difference between a repeater and a switch?  
A repeater is a device that extends the diameter of a network by regenerating  
and forwarding received Ethernet packets. It repeats incoming signals to all  
other ports on the device.  
Like a repeater, a switch can also extend the diameter of a network. However,  
a switch can also extend the collision domain of a network, like bridging a  
10Mbps Ethernet LAN with a 100Mbps Fast Ethernet LAN.  
See the  
illustration below. A switch can also be configured to operate in half-duplex or  
full-duplex mode, whereas a repeater can only operate in half-duplex mode.  
Switching fabric isolates each of the shared buses  
(repeaters) into its own collision domain.  
Switching Fabric  
Repeater (Shared Bus)  
Repeater (Shared Bus)  
Repeater (Shared Bus)  
100  
100  
100  
10  
10  
10  
100  
100  
100  
Collision Domain 1  
Collision Domain 2  
Collision Domain 3  
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Appendix D Frequently Asked Questions  
17  
Category 5 Compliance vs. Category 5 Performance?  
Using CAT 5 cabling in your network installation does not necessarily achieve  
full Category 5 performance. To achieve any category-rated performance, make  
sure all cabling components, including modular plugs, trunk cables, and patch  
panels, are at least of the minimum category required.  
To achieve full CAT 5 performance, all components must be CAT 5 compliant  
and terminated properly according to EIA/TIA-568 TSB-36 and TSB-40  
guidelines.  
What are the Guidelines for Proper Termination?  
It is important to maintain the twists of the cable as close to the termination on  
the outlet as possible, to avoid NEXT (Near End Cross Talk) and to maintain  
the transmission characteristics of the Category. Category specifications require  
that pair twisting, at the point of termination, not exceed the following  
maximums:  
Category 3 maximum allowed untwisting: 3 inches  
Category 4 maximum allowed untwisting: 1 inch  
Category 5 maximum allowed untwisting: 1/2 inch  
Can I mix CAT 3 and CAT 5 cabling in the same building?  
Yes, but keep in mind, you will not have CAT 5 performance. It is a good idea  
to keep the lines separated, physically and by color, when installing any new  
lines, use CAT 5 UTP cabling only.  
Can a Four-Pair CAT 5 cable support two 100BASE-TX  
devices?  
Although only two pairs are used in the standard four-pair CAT 5 UTP cable, it  
is not recommended because it exceeds the specifications outlined by IEEE  
802.3u.  
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18  
Appendix E Mounting Templates  
Appendix E Mounting Templates  
The Fast EtheRx Switch can be stationed on a flat surface using the four rubber  
feet provided, or mounted in a standard 19” rack by using the mounting  
brackets and 4 thumb screws provided with the unit.  
Rubber Feet for Desktops  
The Fast EtheRx Switch comes with rubber feet that may be applied to the  
bottom of the unit for desktop surface installations. The 4 rubber feet have peel-  
off adhesive backing. Remove the backing and attach the feet to the bottom of  
the switch.  
Brackets for Rack Mounting  
The Fast EtheRx Switch can also be mounted in a standard 19” rack using the  
brackets included with the unit. A rack mount installation uses a standard 19”  
dimension. Align the holes in the brackets with the holes on each side of the  
unit. Use the 8 screws provided to secure the brackets to the Fast EtheRx  
Switch. See Figure E-1 below:  
Fig. E-1-Attaching the Mounting Brackets  
Kingston Technology Company  
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Appendix F Product Warranties and Notices  
19  
Appendix F Product Warranties and Notices  
Limited Warranty Statement  
KINGSTON TECHNOLOGY COMPANY ("Kingston") warrants that this product is  
free from defects in material and workmanship. Subject to the conditions and limitations  
set forth below, Kingston will, at its option, either repair or replace any part of this  
product which proves defective by reason of improper workmanship or materials. Repair  
parts or replacement products will be provided by Kingston on an exchange basis, and  
will either be new or refurbished to be functionally equivalent to new.  
This warranty does not cover any damage to this product that results from accident,  
abuse, misuse, natural or personal disaster, or any unauthorized disassembly, repair or  
modification.  
Duration of Warranty  
Lifetime Warranty: The following Kingston products are covered by this warranty for life:  
memory modules and expansion boards, networking adapters, networking hubs without cooling  
fans (excluding the power supply), and microprocessor upgrade products.  
Seven Year Warranty: The following Kingston products are covered by this warranty for a  
period of seven years from the date of original retail purchase: all core storage enclosures  
(including the power supply), cables, terminators, and related accessories. Under certain  
agreements where core products are slightly modified (e.g. paint, handle, etc.) by Kingston at  
the customer’s request, the product will be covered for a period of seven years for repair only.  
Storage products that are custom designed and /or incorporate component-level modification by  
Kingston in order to meet specific customer requests, will be negotiated with the applicable  
customer on a per case basis.  
Five Year Warranty: The following Kingston products are covered by this warranty for a  
period of five years from the date of original retail purchase: the power supply in networking  
hubs without cooling fans; Flash memory cards (e.g. CompactFlash, ATA Flash, and Linear  
Flash); solid state PC Card (PCMCIA) adapters, PC Card Readers and all other Kingston  
products (other than those products covered by a three-year, two-year, or one-year warranty, as  
provided below).  
Three Year Warranty: The following Kingston products are covered by this warranty for a  
period of three years from the date of original retail purchase: networking hubs with cooling  
fans (including the power supply).  
Two Year Warranty: The following Kingston products are covered by this warranty for a  
period of two years from the date of original retail purchase: Solid State Floppy Disk Cards  
(SSFDC), and Winchester hard disk drives in a 2.5 inch, 3.5 inch or 5.25 inch form factor.  
One Year Warranty: The following Kingston products are covered by this warranty for a  
period of one year from the date of original retail purchase: Winchester hard disk drives in a  
1.8 inch form factor, optical storage products, and magnetic tape storage products.  
Rev. 3/99  
KNS1600/R User’s Guide - Rev. B00  
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20  
Appendix F Product Warranties and Notices  
Warranty Claim Requirements  
To obtain warranty service, return the defective product, freight prepaid and insured, to  
your local authorized Kingston dealer or distributor, or to the Kingston factory service  
center located at 17600 Newhope Street, Fountain Valley, California 92708, U.S.A. You  
must include the product serial number (if applicable) and a detailed description of the  
problem you are experiencing. You must also include proof of the date of original retail  
purchase as evidence that the product is within the applicable warranty period. If you  
return the product directly to the Kingston factory, you must first obtain a Return  
Material Authorization ("RMA") number by calling Kingston Customer Service at  
(714) 438-1810, and include the RMA number prominently displayed on the outside of  
your package. Products must be properly packaged to prevent damage in transit.  
Free Technical Support  
Kingston provides free technical support. If you experience any difficulty during  
the installation or subsequent use of a Kingston product, please contact Kingston’s  
Technical Support department prior to servicing your system.  
Kingston Technical Support can be reached in the U.S. at (714) 435-2639 or toll-  
free at (800) 435-0640 (U.S. and Canada only). Kingston European Technical  
Support can be reached from within the U.K. at 01932 738858. Kingston provides  
other service numbers when calling from Germany 0130 115 639 or fax 0130 860  
599, from Austria 0660 5569 or fax 06 607 434, from Switzerland 0800 557 748 or  
fax 0800 552 182, from France 0800 905 701 or fax 0800 900 910, or from Belgium  
(in English) 0800 72763.  
This warranty covers only repair or replacement of defective Kingston products, as  
provided above. Kingston is not liable for, and does not cover under warranty, any  
costs associated with servicing and/or the installation of Kingston products.  
Disclaimers  
The foregoing is the complete warranty for Kingston products and supersedes all  
other warranties and representations, whether oral or written. Except as expressly  
set forth above, no other warranties are made with respect to Kingston products  
and Kingston expressly disclaims all warranties not stated herein, including, to the  
extent permitted by applicable law, any implied warranty of merchantability or  
fitness for a particular purpose. In no event will Kingston be liable to the  
purchaser, or to any user of the Kingston product, for any damages, expenses, lost  
revenues, lost savings, lost profits, or any other incidental or consequential damages  
arising from the purchase, use or inability to use the Kingston product, even if  
Kingston has been advised of the possibility of such damages.  
Rev. 3/99  
Copyright  
©
1997-2000 Kingston Technology Company. All rights reserved. Printed in Taiwan. Kingston  
Technology and the Kingston logo are trademarks of Kingston Technology Company. All other logos and trademarks  
are properties of their respective companies.  
Kingston Technology Company  
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Appendix F Product Warranties and Notices  
21  
F.C.C. Certification  
This device has been tested and found to comply with limits for Class B digital device,  
pursuant to Part 15 of the FCC Rules. Operation is subject to the following two  
conditions:  
(1) This device may not cause harmful interference, and  
(2) This device must accept any interference received; including  
interference that may cause undesired operation.  
CE Notice  
The official CE symbol indicates compliance of this Kingston Technology  
product to the EMC directive of the European Community. The CE symbol  
indicates that this Kingston product meets or exceeds the following standards:  
EN50081-1 “Electromagnetic Compatibility-generic emissions standard”  
EN55022: “Limits and methods of measurement of radio  
interference characteristics.”  
EN50082-1 “Electromagnetic Compatibility-generic immunity standard”  
IEC 801-2: “Electrostatic discharge requirements”  
IEC 801-3: “Radiated immunity requirements”  
IEC 801-4: “Electrical fast transient requirements”  
EN60950  
“Low Voltage Directive (LVD)”  
Declaration of CE Conformity in accordance with the above standards has been  
made and is on file at Kingston Technology.  
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