METRObility Optical Systems Switch 3508 11 User Manual

Lancast®  
8-Port  
CenturySwitch®  
¤
10/100 Ethernet Switch  
CenturySwitch ¤  
Module Port 8  
1
2
3
4
5
6
7
8
1x  
2x  
3x  
4x  
5x  
6x  
7x  
Link/Act  
100Mbps  
Power  
FDX  
MDI-X  
MDI-II  
3508-11  
TX  
RX  
TX  
RX  
100BASE-FX  
HDX FDX  
100BASE-FX  
HDX FDX  
100BASE-FX  
HDX FDX  
Installation & User Guide  
Model: 3508-11  
 
Table of Contents  
8-Port CenturySwitchInstallation & User Guide  
Product Overview.................................................................................................... 4  
Installation Guide ................................................................................................... 5  
STEP 1: Unpack the Lancast CenturySwitch ................................................... 5  
STEP 2: Choose a Location.............................................................................. 5  
STEP 3: Connect to the Network ..................................................................... 6  
STEP 4: Install the Fiber Module (Optional) ................................................... 7  
STEP 5: Apply Power....................................................................................... 9  
User Guide ............................................................................................................ 11  
LED Operation ............................................................................................... 11  
Troubleshooting............................................................................................. 12  
Topology Solutions ........................................................................................ 14  
Technical Specifications ................................................................................. 15  
Product Safety, EMC and Compliance Statements ........................................ 17  
Warranty & Servicing..................................................................................... 18  
Lancast and CenturySwitch are registered trademarks of METRObility Optical Systems, Inc. All other  
trademarks appearing in this manual are the property of their respective owners.  
The information contained in this document is assumed to be correct and current. The manufacturer is not  
responsible for errors or omissions and reserves the right to change specifications at any time without  
notice.  
 
Product Overview  
Thank you for choosing the Lancast CenturySwitch.  
Designed to meet the needs of today’s growing networks, the Lancast 8-Port  
CenturySwitch is a compact, low-cost switch featuring a unique replaceable port  
module. The standard unit provides eight auto-negotiating 10/100 TX ports  
including one modular port with two connectors to support either a crossover or  
parallel connection.  
The TX interface may be replaced by an optional 100Base-FX module. METRO-  
bility offers FX modules with SC, ST and MT-RJ multimode connectors in  
addition to SC singlemode connectors which support network segments up to 15 or  
40km. For added versatility, all FX modules include two user-selectable controls to  
configure the port’s duplex mode and to set the backpressure/flow control.  
By breaking up the collision domain and multiplying network performance, the  
Lancast CenturySwitch delivers the ideal solution for easing network congestion  
problems on existing shared-hub networks. Use the CenturySwitch to increase  
overall network transmission speed and to improve efficiency to accommodate  
high-bandwidth applications such as imaging, multimedia and CAD/CAM.  
The CenturySwitch includes an universal internal power supply and is perfect for  
stand-alone or rackmount use in any office environment.  
Key Features  
Designed for high-performance, versatility, and cost-effectiveness, the  
CenturySwitch offers the following key features:  
• Eight 10/100Mbps auto-negotiating RJ-45 ports including one MDI-X/  
MDI-II modular port  
• Optional multimode or singlemode 100Base-FX interface  
• Full/half duplex switch on all FX modules  
• Backpressure/flow control for half duplex on optional FX interfaces  
• IEEE 802.3x compliant for flow control on all TX ports  
• Diagnostic LED indicators  
• Store-and-forward switching  
• 148,800 packets/sec full-wire rate on 100Mbps mode forwarding and filtering;  
14,880 packets/sec full-wire rate on 10Mbps mode forwarding and filtering  
• Self-learning capability for up to 8K MAC addresses  
• 512KB buffer memory  
• Internal universal power supply  
• Mountable in a standard 19-inch equipment rack  
4
Product Overview  
 
Installation Guide  
Follow the steps outlined in this section to install and start using your Lancast  
CenturySwitch.  
Unpack the Lancast CenturySwitch  
Check that the following components have been included:  
• 8-Port CenturySwitch 3508-11  
• Rackmounting hardware: 2 mounting brackets, 4 screws  
• Power cord  
1
Your order has been provided with the safest possible packaging. Inspect  
it carefully. If you discover any shipping damage, notify the carrier and  
follow their instructions for damage and claims. Save the original  
shipping carton if return or storage of the unit is necessary.  
Choose a Location  
The CenturySwitch is intended for use in normal office environments and  
requires few restrictions on placement.  
2
• Select a location that is within 6 feet of an AC power source and  
less than 100 meters from servers, workstations or other connected  
devices.  
• Do not connect the unit to a power strip.  
• Be sure the location allows for adequate ventilation with a  
clearance of at least 1/2" on the sides of the unit.  
• Be sure the location is as far away as possible from electrical noise  
generating equipment such as copiers, electrostatic printers or  
other motorized devices.  
The CenturySwitch is designed to be mounted in a standard 19-inch  
equipment rack. Use the rackmounting hardware included with the unit to  
secure the mounting brackets to the unit. Use the separate screws*  
provided with the equipment rack to mount the unit in the rack. Be sure  
that the mounting of the unit does not impose a hazardous condition due  
to uneven mechanical loading.  
The CenturySwitch can also be installed on a tabletop. For tabletop  
installation, select a location with the power and ventilation requirements  
cited above.  
* #10-32 screw size is recommended.  
Lancast 8-Port CenturySwitch  
5
 
Connect to the Network  
The Lancast CenturySwitch is compatible with both 10Base-T and  
100Base-TX devices. Network connections are made by simply plugging  
the cables into the RJ-45 port connectors on the front panel as shown in  
the figure below. Each port supports a maximum segment length of 100  
meters over Category 5 UTP cables for 100Base-TX segments and  
Category 3, 4 or 5 UTP cables for 10-Base-T segments. Once power is  
applied to the unit, use the individual Link/Act LEDs to verify correct  
segment connectivity.  
3
®
10/100 Ethernet Switch  
CenturySwitch ®  
Module Port 8  
1
2
3
4
5
6
7
8
1x  
2x  
3x  
4x  
5x  
6x  
7x  
Link/Act  
100Mbps  
Power  
FDX  
MDI-
DI-II  
3508-11  
Fixed Ports  
The CenturySwitch provides seven fixed RJ-45 ports with connectors for  
devices wired crossover. The ports are labeled 1x through 7x. These dual-  
speed ports are 10/100Mbps auto-sensing and will automatically detect  
and operate at the speed of the connected device.  
Module Port  
Port 8 provides two RJ-45 connectors which support a device wired either  
crossover (MDI-X) or parallel (MDI-II).  
IMPORTANT: Do not connect devices to both the MDI-X and MDI-II  
connectors at the same time. This can damage the unit and void its  
warranty.  
6
Installation Guide  
 
Install the Fiber Module (Optional)  
Proceed to Step 5 if you are not using a fiber module.  
The standard 10/100 TX module installed in the CenturySwitch may be  
replaced by a 100Base-FX module. Refer to the listing inside the front  
cover for all available options.  
4
Set the Backpressure Jumper  
Prior to installing the fiber module, you must set the flow control/  
backpressure jumper labeled “JP2” on the printed circuit board. See the  
diagram below for its location.  
• Connect jumper pins 1 and 2 to enable backpressure.  
• Connect jumper pins 2 and 3 to disable backpressure. (default)  
Jumper JP2  
Set the Duplex Mode Switch  
Each fiber module can be configured for half duplex (HDX) or full  
duplex (FDX) operation by means of the slide switch located on the front  
panel. This switch should be set before applying power. The default  
setting on the modules is FDX (full duplex).  
Install the Module  
To install your FX module, first remove the TX interface by turning the  
two thumb screws counterclockwise and withdrawing the card. Replace it  
with the new module. Tighten both screws firmly to attach the fiber  
module to the CenturySwitch.  
Lancast 8-Port CenturySwitch  
7
 
Connect to the Network  
The 3508-04-F and 3508-07-F modules provide a pair of singlemode SC  
connectors. The 3508-04-F supports a maximum segment length of 15km  
and the 3508-07-F supports a maximum segment length of 40km.  
®
10/100 Ethernet Switch  
CenturySwitch ®  
Module Port 8  
TX RX  
1
2
3
4
5
6
7
8
1x  
2x  
3x  
4x  
5x  
6x  
7x  
Link/Act  
100Mbps  
Power  
FDX  
100BASE-FX  
DX FDX  
3508-11  
The 3508-03-F and 3508-05-F modules provide a pair of multimode SC  
and ST connectors, respectively. The 3508-0E-F provides a multimode  
MT-RJ connector. These modules support a maximum segment length of  
2km.  
®
10/100 Ethernet Switch  
CenturySwitch ®  
Module Port  
TX  
8
1
2
3
4
5
6
7
8
1x  
2x  
3x  
4x  
5x  
6x  
7x  
RX  
Link/Act  
100Mbps  
Power  
FDX  
100BASE-FX  
DX FDX  
3508-11  
®
10/100 Ethernet Switch  
CenturySwitch ®  
Module Port  
8
1
2
3
4
5
6
7
8
1x  
2x  
3x  
4x  
5x  
6x  
7x  
Link/Act  
100Mbps  
Power  
FDX  
100BASE-FX  
HDX FDX  
3508-11  
When making fiber optic connections with two cables, be sure that the  
transmit (TX) connector on the CenturySwitch connects to the receive  
(RX) connector of the device. Conversely, be sure that the transmit (TX)  
connector of the device connects to the receive (RX) connector on the  
CenturySwitch.  
Once power is applied to the unit, use the Link/Act LED for Port 8 to  
verify correct segment connectivity. The LED illuminates if an active  
device is connected to the other end of the cable(s).  
8
Installation Guide  
 
Apply Power  
The CenturySwitch is equipped with an internal 100-240V, 50-60Hz,  
25W power supply. When making power connections, connect the power  
cord to the input jack located on the back of the switch before making the  
AC connection to the outlet.  
5
AC Line: 100-240V 50-60Hz  
MADE IN TAIWAN  
AC Power Socket  
IMPORTANT: If the CenturySwitch loses power, wait at least 10  
seconds before applying power again.  
The CenturySwitch is shipped with a standard North American 3-pin  
power cord which is UL (USA), CSA or CUL (Canada) listed or ap-  
proved. For installation in regions outside of North America, replace the  
power cord with a cord approved by the appropriate safety agencies. Any  
cord used must have a CEE-22 standard V female connector on one end  
and meet IEC 320-030 specifications. European power cords must be  
harmonized and designated with a HAR marking on the cord jacket to  
comply with the CENELEC Harmonized Document HD-21.  
The CenturySwitch does not have a power switch. After connecting the  
unit to the AC receptacle, check that the PWR (power) LED is illumi-  
nated. A steady green light indicates the unit is receiving power.  
Once power is applied to the unit, use the individual Link/Act LEDs on  
the front panel to verify correct segment connectivity.  
Lancast 8-Port CenturySwitch  
9
 
10  
Installation Guide  
 
User Guide  
This section contains more detailed information regarding the operating  
features of the Lancast CenturySwitch.  
LED Operation  
The functional descriptions of the LED indicators are listed below. The port LEDs  
report the status of their corresponding ports labeled 1 through 8.  
LED Name Color Status Function  
System LED  
Power  
Green ON  
Unit is powered ON.  
Per Port LEDs  
Connection with remote  
device is good.  
ON  
Link/Act  
Green Blinking TX traffic is present.  
No connection to remote  
device.  
OFF  
ON  
100Mbps speed is active.  
10Mbps speed is active.  
Full duplex mode is active.  
Half duplex mode is active.  
100Mbps  
FDX  
Green  
Amber  
OFF  
ON  
OFF  
CenturySwitch  
1
2
3 4  
5
6
7 8  
Link/Act  
100Mbps  
Power  
FDX  
3508-11  
Lancast 8-Port CenturySwitch 11  
 
Troubleshooting  
Cabling Problems  
Improper cabling is the primary cause of most network problems, particularly for  
100Base-TX and 100Base-FX networks. Use only the specified twisted-pair or fiber  
optic cables to avoid most cabling problems.  
• Flat telephone extension cables, or Category 3 wires, are not the same as  
Category 5 twisted-pair cables and will not function on Fast Ethernet networks.  
• There is a wiring problem if the Link/Act LED does not illuminate when the  
RJ-45 plug from a workstation is inserted into the port jack. Correct the  
break in the cable or replace the cable before proceeding.  
• If a workstation (workstation A) does not function while workstations con-  
nected to other ports on the CenturySwitch operate normally, remove an RJ-  
45 plug from a functioning port with a functioning workstation (workstation  
B) and insert it into the suspect port. If workstation B still works, the prob-  
lem may be in workstation A or in the wiring. However, if workstation B  
does not work, the CenturySwitch may have a defective port. Even if you  
suspect a defective port, continue testing. Improperly wired workstations  
may appear functional, especially if they are located near the switch. Some-  
times a port connected to an improperly wired workstation functions mar-  
ginally while another port does not work at all.  
• Once you have established that the CenturySwitch is working properly, check all  
wiring between it and the malfunctioning workstation. Be sure that the transmit  
(TX) and receive (RX) cables are not crossed. The transmit cable from the worksta-  
tion should connect to the receive connector of the switch and the transmit cable  
from the switch should connect to the receive connector of the workstation.  
• Use a continuity checker to ensure that wires do not have any breaks. By  
shorting together the two wires at the end of a pair, you can use the continuity  
checker at the other end. Also check that there are no shorts between wires.  
Workstation Problems  
Most non-cabling problems result from improper configuration of the network  
interface card (NIC) and its corresponding driver. Observe the following points:  
• Like other add-on cards in the workstation or server, the NIC must have a  
unique memory address, I/O address and interrupt. The settings on a  
particular card must not conflict with the settings on any other card in the  
same station. Refer to the user’s manuals of your NIC, computer and  
network operating system to determine the proper configuration.  
12  
User Guide  
 
• The mode (half duplex or full duplex) and speed (10Mbps or 100Mbps) of  
the NIC setting must match the mode and speed setting of the corresponding  
port of the switch. For NWay Auto-Negotiation setting, both link partners  
will adjust to the highest allowable speed and mode operation.  
Other Problems  
Other specific problems may be diagnosed by using the LEDs as described below.  
Power LED is OFF when CenturySwitch is connected to the AC source  
• Defective fuse  
• Incorrect AC voltage  
• Defective switch  
Link/Act LED is OFF at a port  
• Faulty node or wiring connection (when RJ-45 plug is inserted, a clicking  
sound should be heard)  
• No link signal is received from the remote device  
CenturySwitch does not work  
If the switch does not function or is experiencing interference (i.e., your site is  
located near a radio station, transmitter, etc.), try using shielded twisted-pair (STP)  
cables instead of UTP cables.  
Self-diagnostic test  
• The CenturySwitch performs a self-diagnostic test at power on; LED  
indicators go to their normal status if no problem occurred.  
• To reset or restart the CenturySwitch, unplug it from the AC source and wait  
10 seconds before applying power again.  
CAUTION: Circuit devices are sensitive to static electricity which can damage  
their delicate electronics. Dry weather conditions or walking across a carpeted  
floor may cause you to acquire a static electric charge.  
To protect your device, always:  
• Touch the metal chassis of your computer to ground the static electrical  
charge before you pick up the device.  
• Pick up the device by holding it on the left and right edges only.  
Lancast 8-Port CenturySwitch 13  
 
Topology Solutions  
CenturySwitch  
CenturySwitch  
CenturySwitch  
Intelligent  
7500 Chassis  
100Mbps  
Enterprise Switch  
Copper  
Fiber Optic  
14  
User Guide  
 
Technical Specifications  
Data Rate  
10Base-T ports ___________________ 10Mbps half duplex; 20Mbps full duplex  
100Base-TX ports_______________ 100Mbps half duplex; 200Mbps full duplex  
100Base-FX ports _______________ 100Mbps half duplex; 200Mbps full duplex  
Switching Performance  
Buffer memory _____________________________________ 512KB for 8 ports  
Packet filtering/forwarding rate _____________ 148,800 packets/sec @100Mbps  
_______________ 14,880 packets/sec @10Mbps  
MAC addresses__________________________________________________8K  
Network Connections  
Twisted-Pair Interface  
Connector _______________________________________Shielded RJ-45, 8-pin  
Supported link length __________________________________________ 100m  
Cable type (10Mbps segments) _____________________ Category 3,4 or 5 UTP  
(100Mbps segments) _________________________ Category 5 UTP  
Multimode Fiber Optic Interface  
Connector __________________________________________ SC, ST or MT-RJ  
Supported link length ______________________________ up to 2km full duplex  
Cable type ___________________________ 50/125, 62.5/125 or 100/140µm F/O  
Singlemode Fiber Optic Interface  
Connector ______________________________________________________SC  
Supported link length __________________ up to 15km full duplex (3508-04-F)  
__________________ up to 40km full duplex (3508-07-F)  
Cable type ______________________ 8.3/125, 8.7/125, 9/125 or 10/125µm F/O  
Power Requirements  
Auto-sensing _____________________________100 - 240V AC, 50/60 Hz, 25W  
Environmental  
Operating temperature ____________________________________ 0°C to 50° C  
Storage temperature ____________________________________-25° C to 60° C  
Operating humidity__________________________5% to 90% (non-condensing)  
Lancast 8-Port CenturySwitch 15  
 
Physical  
Dimensions _________________________________ 13" W x 6.75" D x 1.75" H  
Weight________________________________________________________ 4 lb  
Regulatory  
Compliance ______________________________ IEEE 802.3u and 802.3x, TUV  
Safety ___________________________________________ UL, CSA, EN60950  
EMC _________________ FCC Part 15, Class A; EN55022 Class A; EN50082-1  
16  
User Guide  
 
Product Safety, EMC and Compliance Statements  
This equipment complies with the following requirements:  
• UL  
• CSA  
• TUV  
• EN60950 (safety)  
• FCC Part 15, Class A  
• EN55022 Class A (emissions)  
• EN50082-1 (immunity)  
• IEEE 802.3  
• IEEE 802.3u  
• IEEE 802.3x  
• IEC 825-1 Classification  
• Class 1 Laser Product  
This product shall be handled, stored and disposed of in accordance with all gov-  
erning and applicable safety and environmental regulatory agency requirements.  
The following FCC and Industry Canada compliance information is applicable to  
North American customers only.  
USA FCC Radio Frequency Interference Statement  
This equipment has been tested and found to comply with the limits for a Class A  
digital device, pursuant to Part 15 of 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 the instruction  
manual, may cause harmful interference to radio communication. 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 his own expense.  
Caution: Changes or modifications to this equipment not expressly approved by  
the party responsible for compliance could void the users authority to operate the  
equipment.  
Canadian Radio Frequency Interference Statement  
This Class A digital apparatus meets all requirements of the Canadian Interfer-  
ence-Causing Equipment Regulations.  
Cet appareil numérique de la classe A respecte toutes les exigences du Réglement  
sur le matériel brouilleur du Canada.  
Lancast 8-Port CenturySwitch 17  
 
Warranty and Servicing  
METRObility Optical Systems, Inc. warrants the Lancast CenturySwitch to be in  
good working order for a period of three years from the date of METRObility  
shipment. Should the unit fail anytime during said three-year period, METRObility  
will, at its option, replace or repair the product. This warranty is limited to defects  
in workmanship and materials and does not cover damage from accident, disaster,  
misuse, abuse or unauthorized modifications. Under no circumstances will  
METRObility be liable for any damages incurred by the use of this product  
including, but not limited to, lost profits, lost savings, and any incidental or  
consequential damages arising from the use of, or inability to use, this product.  
If the product was purchased from an authorized METRObility dealer, limited  
warranty service may be obtained by returning the product to the dealer. Return  
the product in its original shipping container (or equivalent), pre-insured, and with  
proof of purchase.  
18  
User Guide  
 
Lancast 8-Port CenturySwitch 19  
 
25 Manchester Street, Merrimack, NH 03054 USA  
tel: 603-880-1833 fax: 603-594-2887  
5660-350001-001 D  
8/01  
 

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